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TOSHIBA
SERVICE MANUAL
AIR CONDITIONER
HEAT PUMP MULTI SPLIT (2-PIPE)
Outdoor Units
MAR - M81HTM8 - E
MAR - M101HTM8 - E
Multi Controllers
RBM - Y1032E - E
RBM - Y1042E - E
AUGUST 1997
Page 1
TOSHIBA
Contents
1. Specifications
Outdoor Unit
Multi Controller
2. Basic Permutations / Capabilities
3. Dimensional Views
Outdoor Unit
Multi Controller
4. Wiring Diagrams
Outdoor Unit
Multi Controller
5. Refrigeration Circuit
Outdoor Unit
Multi Controller
6. Display Information and Fault Codes
7. Circuit Test Procedure
8. Calculation for Additional Gas Charge
Note : The two pipe Super Multi systems are heat pump units and can
provide heating or cooling, where both modes are required simultaneously
heating mode takes priority.
AUGUST 1997
Page 2
TOSHIBA
1. Specifications
OUTDOOR UNITS
Model
Cooling Capacity
Heating Capacity
Power Supply
Power Consumption
Running Current
Start Current
Dimensions
Weight
Noise Level SPL
Min Temp. (ambient)
Gas Pipe (main)
(sub)
Liquid Pipe (main)
(sub)
Max.. Length Actual
Max.. Length Equiv.
Height Difference
Refrigerant Type
Std Refrigerant Weight
Compressor Type
Compressor Output
Fan Type
Fan Motor Consumption
Air Flow Rate
Colour
Multi Controllers
MAR-M81HTM8-E
MAR-M101HTM8-E
20.0 (22.4)
25.0 (28.0)
20.0 (25.0)
25.0 (31.5)
3ph,380/415v,50Hz
8.0 / 7.7
10.1 / 10.1
12.3 / 11.7
15.7 / 15.0
60
1,490
1,290
824
308
315
66
-5 / -10
1 1/8
3/4
5/8
1/2
100
120
50
20
R 22
15.6
18.6
Hermetically Sealed Twin Scroll
5.6
7.5
2 x Propeller Fan (two speed)
2 x 150
10,000
kW
kW
(C/H) kW
(C/H) Amps
Amps
Height (mm)
Width (mm)
Depth (mm)
kg
dB(A)
Cooling / Heating ºC
Inch
Inch
Inch
Inch
m
m
Outdoor Above (m)
Outdoor Below (m)
Kg
kW
W
m³/hr
Silky Grey (Munsell 6Y7.0/0.3)
3 - Way
4 - Way
RBM-Y1032E-E
RBM-Y1042E-E
Note: The capacity value in brackets is the maximum operating capacity
Cooling and Heating capacities are based on JIS B8615
Cooling capacity:
Room Temperature
27ºC DB
19.5ºC WB
Ambient Temperature
35ºC DB
Heating capacity:
Room Temperature
21ºC DB
Ambient Temperature
7ºC DB
6ºC WB
Usable outdoor temperature ranges
Cooling mode
-5ºC to +43ºC DB
Heating mode
-10ºC to +21ºC DB
Specifications are subject to change without prior notice.
AUGUST 1997
Page 3
TOSHIBA
1. Specifications
MULTI CONTROLLERS
Model
Number of Branches
Gas Pipe (Inlet)
Liquid Pipe (Inlet)
Branch Pipes (Gas)
Branch Pipes (Liquid)
Dimensions
Weight
Max.. Branch Length
Max.. Difference between
Branches
Max.. Vertical Separation
Where two M/C are used
Max.. Sub Pipe Length (each)
Max.. Difference between
Sub Pipes
Inch
Inch
Inch
Inch
Height (mm)
Width (mm)
Depth (mm)
kg
m
m
RBM-Y1032E-E
3
1 1/8
5/8
3/4 x 3
3/8 x 3
260
590
450
20
30
10
RBM-Y1042E-E
4
1 1/8
5/8
3/4 x 4
3/8 x 4
260
590
520
23
30
10
m
15
15
m
m
15
10
15
10
Specifications are subject to change without prior notice.
Pipe Size Conversion Chart
mm
inch
6.4
1/4
9.5
3/8
12.7
1/2
15.9
5/8
AUGUST 1997
Page 4
19
3/4
22.4
7/8
25.4
1
28.6
1.1/8
TOSHIBA
2. Basic Permutations of Indoor to Outdoor Units
The indoor units are given a code number according to their capacity rank - see below
Model Number
RAV103
RAV132/133
RAV453/160/1/2/3
RAV202/3
RAV713/260/1/2/3
RAV1003/360/1/2/3
RAV1253/460/1/2/3
Code Number
2
3
4
5
6
8
10
Multiple indoor units may be connected to one outdoor unit, providing the total indoor code does not
exceed the outdoor unit code number. The outdoor unit codes are listed below
Model
MAR-M81HTM8-E
MAR-M101HTM8-E
Max.. No. Indoor Units
8
8
Min Code
3
3
Max. Code
21
27
When connecting up to four single indoor units only one multi controller is required, if more single
indoor units are needed then two multi controllers must be used. When connecting a twin indoor
arrangement to one multi controller branch the capacity code will be the sum of both indoor unit
codes.
Example :
Model No.
RAV133TUH
RAV133TUH
RAV202KH(W)
RAV202KH(W)
Arrangement
Single
Twin
Single
Twin
Indoor Capacity Code Total Capacity Code
3
3
3
6
5
5
5
10
Total
24
The total capacity codes for the example above are within the maximum permitted for a 10hp
(MAR-F101HTM8-E) outdoor unit therefore the use of a twin arrangement is acceptable.
NOTE : The maximum duty from the system cannot exceed the maximum capacity of the outdoor
unit, it is possible to use indoor uits with a total capacity of 135% of the outdoor unit capacity.
AUGUST 1997
Page 5
TOSHIBA
CONSTRUCTION VIEWS
MAR-M81HTM8E-E
MAR-M101FHTM8E-E
98 mm
1182 mm
1290 mm
1100 mm
650 mm
790 mm
824 mm
90 mm
750 mm
610 mm
375 mm
65 mm
135 mm
120 mm
L
G
130 mm
160 mm
AUGUST 1997
Page 6
TOSHIBA
DIMENSIONAL DRAWINGS
RBM-Y1032E-E
300 mm
Oval holefor
hanging bolt
Slit for hanging bolt
15 mm
15 mm
560 mm
590 mm
90 mm
170 mm
170 mm
490 mm
85 mm
55 mm
Electric Parts Box
90 mm
90 mm
90 mm
90 mm
90 mm
500 mm
or more
50 mm
100 mm
or more
80 mm
250 mm
500 mm
or more
Refrigerant piping joint (Flare)
Liquid Side Ø 9.5
125 mm
450 mm
100 mm
Wiring Entrance
500 mm
or more
Note. Make an inspection opening at
the specified place. It is indispensable
for servicing.
Refrigerant piping joint (Flare)
Liquid Side Ø 15.9
Refrigerant piping joint (Flare)
Discharge Gas Side Ø 19
50 mm
80 mm
205 mm
Wiring Entrance Ø 36
Refrigerant piping joint (Brazed)
Suction Gas Side Ø 28.6
450 x 450
Inspection opening
Refrigerant piping joint (Flare)
Gas Side Ø 19
60 mm
AUGUST 1997
Page 7
TOSHIBA
DIMENSIONAL DRAWINGS
RBM-Y1042E-E
370 mm
Oval holefor
hanging bolt
Slit for hanging bolt
15 mm
560 mm
590 mm
90 mm
170 mm
85 mm
55 mm
90 mm
90 mm
90 mm
90 mm
90 mm
90 mm
Electric Parts Box
170 mm
490 mm
90 mm
500 mm
or more
50 mm
100 mm
or more
80 mm
250 mm
500 mm
or more
Refrigerant piping joint (Flare)
Liquid Side Ø 9.5
Wiring Entrance
125 mm
190 mm
520 mm
500 mm
or more
Note. Make an inspection opening at
the specified place. It is indispensable
for servicing.
Refrigerant piping joint (Flare)
Liquid Side Ø 15.9
Refrigerant piping joint (Flare)
Discharge Gas Side Ø 19
50 mm
80 mm
205 mm
Wiring Entrance Ø 36
Refrigerant piping joint (Brazed)
Suction Gas Side Ø 28.6
450 x 450
Inspection opening
Refrigerant piping joint (Flare)
Gas Side Ø 19
60 mm
AUGUST 1997
Page 8
TOSHIBA
4. Schematic Wiring Diagrams
Outdoor Unit
Reactor
Giant
Transistor
Electric Starter
Rectifier
Smoothing Circuit
2200λ F/400v x 2
47kΩ/20W x 2
(~)
+
12
(~)
Contactor
52C2
W
V
U +
Diode
Clipper
1ℜ
Noise
Filter
Diode
Clipper
Contactor
52C1
-
-
(~)
CD2
U V W
1234
CD2
3ℜ
Noise Filter
CM1
Capacitor
1λ F x 3
Fuses
20A x 3
Inverter
Compressor
123 123 123 1234567
CN24 CN23 CN22
CN25
1234567 1234
CN4
CN8
P01
CD1
P02
3
CN2 2
1
Gate Drive PCB
MCC - 1252
CN21
Reversing
Valve
ThE
1
2
3
20SF
123456789
3
2 CN121
1
Thermal Fuse
TRS
1
2
3
Crankcase
Heater
Inverter HP
Sw
63H1 Klixon
Inverter
49C1
1
DOL Klixon
49C2
2
123456789
1
2
3 CN6
4
5
6
7
2
123
CN5
CN9
CN1
Tr2
INVERTER CONTROL
PCB
MCC - 1251
CN2
1
DOL HP Sw
63H2
1
2
3
4
1
2 PJ5
3
Tr1
CM2
D.O.L.
Compressor
ThD1 ThD2 ThS
Pressure
Sensor
Display LED x 8
W
1ℜ
Noise
Filter
V
U
Contactor
52C3
P2
PJ6
Display
Switch
P1
PJ10
123
123
PJ1
WHI
PJ2
BLK
PJ3
BLU
INTERFACE CONTROL
PCB
MCC - 1211
PJ11
12345
Return
Lock
123
PJ12
1 2 3 4 5 6 7 8 9
12345
PJ16
PJ15
PJ7
123
12345
1 2
54321
PJ8
1 2 3 4
1 2 3 4
1 2
1 2 3 4 5 6
FM2
FM1
6
Fuses
2 x 7A
5
4
3
2
Surge
Absorber
1
Fuse 20A
RC2
1ℜ
Noise
Filter
1
2
7
8
9
10
11
RC1
12
1 2 3 4 5 6 7 8 9
CAPACITORS
2200λ F x 2
SV1
Surge
Absorber
L1
L2
L3
N
POWER SUPPLY
50Hz 3ℜ 380/415 v
1
2
M/C (1)
3
1
2
3
M/C (2)
SV2
SV3
Solenoid Valves
= 240 v ac Live (not permanent)
= Neutral (not permanent)
= Communication Signal
= Earth
= L1 phase 415ac
= L2 phase 415ac
= L3 phase 415ac
= dc high voltage live
= dc high voltage neutral
= 3Ø for Inv Compressor
= dc low voltage
= ac low voltage
= ac low voltage
AUGUST 1997
Page 9
Fan Motors
PMV1
Pulsed
Modulating
Valve
Low Pressure
Switch 63L
Note :The colours used in this diagram are not
representative of those on the actual producct,
they are intended to indicate the status of each
wire.
TOSHIBA
4. Schematic Wiring Diagrams
Multi Controllers
PMVA
PMVB
PMVC
ThA
PMVD
ThB
ThC
ThD
ThX
Transformer
5
4 3
2
1
5
4 3
2
1
PJ 7
PJ 6
5
4 3
2
1
5
PJ 8
4 3
2
1
3
PJ 9
2
1
3
PJ 1
Float
Switch
2
PJ 2
1
3
2
PJ 3
1
3
2
PJ 4
1
3
2
1
1
2
Sump
Heater
3
PJ 16
PJ 5
2
PJ 14
LD 1
LD 2
_
|_|
|_|
_
|_|
|_|
2
PJ 10
1
Capacity Code
Swiches
Display
Switch
1
2
PJ 13
1
5
4
PJ 12
Multi Controller P.C.
Board
MCC - 1210
TP 2
TP 1
Branch Branch Branch Branch
A
B
C
D
3
2
1
Microswitch
COM
NO NC
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
INDOOR
UNIT A
INDOOR
UNIT B
The colours used in this
diagram are not
representative of those on
the product, they are
intended to indicate the
status of each wire.
= 240v ac Live Wiring
= Neutral Wiring
= Serial Wiring
= Earth Wiring
= ac low voltage
= ac low voltage
INDOOR
UNIT C
1
1
2
2
3
3
1
1
2
2
OUTDOOR
UNIT
INDOOR
UNIT D
RBM - Y1032E - E does not have
PMVD, ThD, indoor unit D connections
or the capacity code switch for branch D.
AUGUST 1997
Page 10
3
3
TOSHIBA
5. Schematic Refrigeration Diagram
Outdoor Unit
INVERTER
H.P. SWITCH
ThE
COMPRESSOR
EXPANSION
VALVE
SERVICE
VALVE
PRESSURE
SENSOR
LOW
PRESSURE
SWITCH
ThD1
INVERTER
COMPRESSOR
DRIER
ThS
LIQUID
TANK
CHECK VALVE
HEAT
EXCHANGER
D.O.L.
COMPRESSOR
SV1
HIGH
PRESSURE
RELEASE
ThD2
4-WAY
VALVE
D.O.L.
H.P.SWITCH
SERVICE
VALVE
SV2
FOR GAS
BALANCE
STRAINER
SV4
FOR
COMP 2
START UP
PMV1
COOLING
BYPASS
ACCUMULATOR
Specification of Outdoor Unit Components
Model Number
Compressor
Fan Motor
H.P. Switch Inv.
H.P. Switch DOL
L.P. Switch
ThD1 & ThD2 Sensor
ThS & ThE
Four Way Valve
Crankcase Heater (240vac)
Type Number
Motor Type
Power Supply
Output
(kW)
Coil Resistance (Ω)
Type Number
Motor Type
Power Supply
Consumption
(W)
Current
(A)
No. Poles
Thermal Cut-out
P.S.I.G.
P.S.I.G.
P.S.I.G.
(kΩ)
(kΩ)
(W)
MAR-M81HTM8-E
MAR-M101HTM8-E
HV991CW-Y12
HV1201CW-Y12
Three Phase Induction
415/380 , 3-phase , 50Hz + Neutral
5.6
7.5
Inv.1.49 / DOL 2.51
STF-200-150C
Single Phase Induction
220 / 240 , single phase , 50Hz + Neutral
150
1.12 - 1.44
6
Trip 115ºC ✁ 5ºC
Break on Rise : Trip 425 , Reset 340
Make on Rise : Trip 425 , Reset 340
Break on Drop : Trip 3.5 , Reset 20
50 @ 25ºC , 17.9 @ 50ºC , 3.35 @ 100ºC
32.8 @ 0ºC , 10 @ 25ºC , 3.6 @ 50ºC
Energised for Heating
74
AUGUST 1997
Page 11
TOSHIBA
5. Schematic Refrigeration Diagram
Multi Controller
INDOOR UNIT
EXPANSION VALVE
BRANCH A
PMV(A)
STRAINER
CHECK VALVE
EXPANSION VALVE
PMV(B)
STRAINER
STRAINER
LIQUID PIPE
BRANCH B
CHECK VALVE
EXPANSION VALVE
PMV(C)
STRAINER
BRANCH C
CHECK VALVE
EXPANSION VALVE
PMV(D)
STRAINER
BRANCH D
STRAINER
CHECK VALVE
ThX
ThA
ThB
GAS PIPE
ThC
ThD
The schematic shows the layout for a four way multi controller (RBM-Y1042E-E), the three way
multi controller (RBM-Y1302E-E) is very similar however all components relating to branch D have
been removed.
Specification of Multi Controller Components
Model Number
ThA,B,C,D,X Sensor
Float Switch
Sump Heater (240vac)
Thermal Fuse
Heater Fuse
Transformer
(kΩ)
(W)
(ºC)
(Amps)
Primary / Secondary (v ac)
AUGUST 1997
Page 12
RBM-Y1032E-E
RBM-Y1042E-E
32.8 @ 0ºC , 10 @ 25ºC , 3.6 @ 50ºC
Break on Rise
50
65
Trips at 119
1
240 / 12
TOSHIBA
6. Fault Code and Display Information
Fault Codes
Before reading the fault codes do not turn the power off as doing so will wipe the diagnostic
memory. Caution must be taken when removing the access covers as high voltages are present.
Fault diagnosis is available at three locations within the air conditioning system :1. Remote Controller - press the check button
2. Multi Controller - rotate the display switch to position 1
3. Outdoor Unit - see following text
Remote Controller
Press Check
O4
O4
O4
Ob
OC
No Communication
Inverter to Interface
No Communication
Multi Con to Outdoor
No Communication
Indoor to Multi Con
I.D. Water Level
TA Sensor
Multi Controller
Switch Position 1
è
O4
è
O4
88
No Communication
Inverter to Interface
No Communication Multi
Con to Outdoor
Outdoor Unit
è
No Communication Inverter to Interface
80
81
82
83
No Communication
Initially M/C to OD
Th(A) Sensor Fault
Th(B) Sensor Fault
Th(C) Sensor Fault
Th(D) Sensor Fault
ç
ç
ç
ç
LED1
LED2
LED3
LED4
Th(A) Sensor Fault
Th(B) Sensor Fault
Th(C) Sensor Fault
Th(D) Sensor Fault
LED5
Th(X) Sensor Fault
LED6
LED7
LED8
M/C Water Level
M/C Settings too High
M/C1 Sensor Fault
M/C2 Sensor Fault
Display Switch set to “8” (if lit....)
Od
O8
O9
99
TC Sensor
Reverse Change Temp
Frost or no Change ºC
No Communication
Indoor to Rem Con.
84
Th(X) Sensor Fault
ç
15
Refer to Multi Con
Preheat/Defrost Flash
ì
è
Ob
89
M/C Water Level
ID Codes too High
ID Codes set to Zero
ç
ç
1C
Refer to O/D
è
1C
Refer to O/D
è
14
1d
1F
18
Refer to O/D
Refer to O/D
Refer to O/D
Refer to O/D
è
è
è
è
14
1d
1F
18
Refer to O/D
Refer to O/D
Refer to O/D
Refer to O/D
è
è
è
è
21
Refer to O/D
è
21
Refer To O/D
è
î
- = LED Flashing
see Table 1
m = LED On
AUGUST 1997
Page 13
Display Switch set to “3” (if lit....)
LED1
ThD1 Sensor Fault
LED2
ThD2 Sensor Fault
LED3
ThS Sensor Fault
LED4
High Pressure - detected by pressure
sensor
LED5
Pressure Sensor Fault
LED6
Discharge Pipe >130ºC
LED7
Suction Pipe >40ºC
LED8
Low Pressure <3.5psig
SW01 Set to Off/Off
-mmm Low Inverter Voltage
m-mm High Inverter Current dc
mm-m High Inverter Current ac
ThE Sensor Fault
mmm-
Inv HP Trip, Comp Klixon
Phase Rotation, DOL HP Trip, O/Load,
Comp Klixon
TOSHIBA
6. Fault Code and Display Information
Display switch information
Multicontroller
Switch position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Information
System Communication
Fault Codes
Level of Demand
Oil Retrieval, Superheat, Defrost
Operating Mode
Restart Timer
Circuit Test (commissioning only)
PMV(A) Position
PMV(B) Position
PMV(C) Position
PMV(D) Position
ThA Sensor Data (Hex Code)
ThB Sensor Data (Hex Code)
ThC Sensor Data (Hex Code)
ThD Sensor Data (Hex Code)
ThX Sensor Data (Hex Code)
Outdoor Unit
Switch position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Information
System Communication
Status of Compressors
System Status (Mode, Defrost, PMV)
Fault Diagnostics (Outdoor Unit)
M/C1 Branches A & B Indoor Capacity Codes
M/C1 Branches C & D Indoor Capacity Codes
M/C2 Branches A & B Indoor Capacity Codes
M/C2 Branches C & D Indoor Capacity Codes
Fault Diagnostics (Multi Controller)
Circuit Test (commissioning only)
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
AUGUST 1997
Page 14
TOSHIBA
6. Fault Code and Display Information
Multi Controller Display Switch Information
Switch Indicates
Pos.
LD 1
_
|_|
|_|
0
Serial
1
Fault
Codes
Demand
2
3
_
|_|
|_|
|
From B
Branch
To B
Branch
Timer
cct test
_
|_|
|_
_|
_
|_|
|_|
_
|_|
|_|
_
|_
_|
|_|
To A
Branch
From A
Branch
From
Outdoor
_
|_|
|_|
_
|_|
|
|_|
_
|_|
|_|
|
From D
Branch
To D
Branch
_
|_|
|_
_|
_
|_|
|_|
_
|_|
|_|
_
|_
_|
|_|
To C
Branch
From C
Branch
To
Outdoor
For Details of Fault Codes see Page 13
Level of Cooling/Heating Demand (00-1F)
Oil Ret
brch B
Defrost
4
5
6
7
8
9
10
11
12
13
14
15
_
|_|
|
|_|
LD 2
Superheat
brchB
Superheat Oil Ret
brchA
brchA
Oil Ret
brch D
Superheat
brchD
Superheat Oil Ret
brchC
brchC
Displays “dF” during defrost operation
Operating Mode :Heating (H-), Cooling (-C), Stop (--), Defrost (J-)
Normal Display (OO), Restart Timer Displays (-1) During Count Down
Displays Branch Being Tested (A b C d)
Indicates Faulty Branch Connection After Circuit Test
PMVA
Displays Degree Of PMV Opening As A Hexadecimal Code :
(OO) = Closed , (FO) = Fully Open
PMVB
PMVC
PMVD
ThA
ThB
ThC
ThD
ThX
Displays Sensor Readings As A Hexadecimal Code :
40=0ºC ; 68=10ºC ; 90=20ºC ; b8=30ºC
The Hexadecimal codes can be interpreted using the following chart
Display
OO
1O
2O
3O
4O
5O
6O
7O
8O
9O
AO
bO
CO
dO
EO
FO
PMVAngle
Closed
16
32
48
64
80
96
112
128
144
160
176
192
208
224
240
Th-AbCdX
ºC
-8
-4
0
4
8
12
16
20
24
28
32
Display
OO
O1
O2
O3
O4
O5
O6
O7
O8
O9
OA
Ob
OC
Od
OE
OF
Level Of Demand
Hz
Display
0
0
0
3.9
6.9
10
13
16.2
19.3
22.4
25.5
28.6
31.7
34.8
37.9
41
1O
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1
1F
The above chart shows a sample of readings, other intermediate readings may be registered.
AUGUST 1997
Page 15
Hz
44.1
47.2
50.3
53.4
56.5
59.6
62.7
65.8
68.9
72
75.1
78.2
81.3
84.4
87.5
90
TOSHIBA
6. Fault Code and Display Information
Outdoor Unit Display Switch Information
The operating status of the outdoor unit and fault diagnosis can be made using both the display
selector switch (on the interface pcb) and the eight red light emitting diodes on the interface printed
circuit board.
a. Display switch set to position “0” shows communication around the system
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
Lit = Receiving serial signal from multi controller 1
Lit = Sending serial signal to multi controller 1
Lit = Receiving serial signal from multi controller 2
Lit = Sending serial signal to multi controller 2
Lit = Receiving serial signal from inverter printed circuit board
Lit = Sending serial signal to inverter printed circuit board
n/a
n/a
b. Display switch set to position “1” shows status of both compressors
Inverter Speed
S0
0 Hz
S3
30 Hz
S4
36 Hz
S5
42 Hz
S6
46 Hz
S7
53 Hz
S8
61 Hz
S9
69 Hz
SA
76 Hz
SB
84 Hz
SC
92 Hz
SD
103 Hz
SE
111 Hz
SF
122 Hz
LED 1
X
X
X
X
X
X
O
O
O
O
O
O
O
O
O = Lit
LED 2
X
X
O
O
O
O
X
X
X
X
O
O
O
O
LED 3
X
O
X
X
O
O
X
X
O
O
X
X
O
O
LED4
X
O
X
O
X
O
X
O
X
O
X
O
X
O
LED 5
LED 6
DOL compressor
On On = Run
Off Off = Stop
X = Off
c. Display switch set to position “2” shows the status of the system
AUGUST 1997
Page 16
LED 7
LED 8
Speed Limiting
Due To Protection
Circuits i.e.
High TD or Low TS
TOSHIBA
6. Fault Code and Display Information
Outdoor Unit Display Switch Information cont.
d. Display switch set to position “3” identifies a fault condition in the outdoor unit.
Details are in the fault code chart on page 13
e. Display switch set to positions “4, 5, 6 & 7” identifies the indoor unit capacity code for each
branch.
Pos. 4
Pos. 5
Pos. 6
Pos. 7
LED 1
LED 2
LED 3
LED4
Capacity code of unit on M/C 1 branch A
Capacity code of unit on M/C 1 branch C
Capacity code of unit on M/C 2 branch A
Capacity code of unit on M/C 2 branch C
O = Lit
X = Off
X
X
O
X
X
X
O
O
X
O
X
X
X
O
X
O
X
O
O
X
X
O
O
O
O
X
X
X
O
X
O
X
LED 5
LED 6
LED 7
LED 8
Capacity code of unit on M/C 1 branch B
Capacity code of unit on M/C 1 branch D
Capacity code of unit on M/C 2 branch B
Capacity code of unit on M/C 2 branch D
Indoor Model Number
Code No
103
2
132/133
3
453/160/161/162/163
4
200/202/203
5
713/260/261/262/263
6
1,003/360/361/362/363
1,253/460/461/462/463
8
10
f. Display switch set to position “8” identifies a fault condition in the multi controller.
Details are in the fault code chart on page 13
g. Display switch set to position “9” shows the status of the commissioning circuit test.
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
M/C 1
M/C 2
Branch A
Branch B
Branch C
Branch D
Branch A
Branch B
Branch C
Branch D
AUGUST 1997
Page 17
When an LED is lit it indicates that there is
a wiring or piping fault between the multi
controller and the relevant indoor unit.
TOSHIBA
7. Circuit Test Procedure
These systems have a feature which enables them to check that the wiring and piping connections are
aligned with each other. This is carried out by allowing refigerant flow to one indoor unit at a time
and monitoring that indoor unit’s coil sensor for a corresponding drop in temperature. Each indoor
unit is tested in turn and where two multi controllers are installed each multi controller is tested in
turn.
This test would normally be used at the commissioning stage.
Procedure for initialising the circuit test.
1.
2.
3.
4.
5.
6.
7.
8.
Turn the power off, and disconnect any T2s (optional) fitted.
Put the outdoor display switch to 9 and multi controller(s) display switch to 6.
Turn the power back on.
Set all the remote controllers to cool mode and 29ºC.
Press the on/off button to start the indoor units (fans will run).
Go to outdoor unit press switch J2 (above 8 x LEDs) for 3 sec .
The system is now self-testing (all 8 LEDs will be flashing rapidly).
The system will stop at the end of the test, indicated by the on/off lights flashing.
In the event of cross wiring/piping the system will indicate which units are faulty, see pages 15 & 17
AUGUST 1997
Page 18
TOSHIBA
8. Calculating The Additional Gas Charge
Main Pipes
0.19 kg/m
Branch Pipes
RAV-103 ; 0.030 kg/m
RAV-133 ; 0.030 kg/m
RAV-162 ; 0.030 kg/m
RAV-202 ; 0.030 kg/m
Sub Pipes
0.125 kg/m
RAV-262 ; 0.045 kg/m
RAV-362 ; 0.045 kg/m
RAV-462 ; 0.045 kg/m
Single Multi Controller
Main pipe run (minus 3m.)
Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
Two Multi Controllers
Main pipe run (minus 2m.)
Total sub pipe (minus 2m.)
M/C1 Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
M/C2 Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
x
0.190 kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
Total Additional Gas Charge
=
=
=
=
=
= _________________kg
x
0.190 kg/m
x
0.125 kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
Total Additional Gas Charge
=
=
=
=
=
=
=
=
=
=
= _________________kg
AUGUST 1997
Page 19
TOSHIBA
SERVICE MANUAL
AIR CONDITIONER
HEAT PUMP MULTI SPLIT (2-PIPE)
Outdoor Units
MAR - M81HTM8 - E
MAR - M101HTM8 - E
Multi Controllers
RBM - Y1032E - E
RBM - Y1042E - E
AUGUST 1997
Page 1
TOSHIBA
Contents
1. Specifications
Outdoor Unit
Multi Controller
2. Basic Permutations / Capabilities
3. Dimensional Views
Outdoor Unit
Multi Controller
4. Wiring Diagrams
Outdoor Unit
Multi Controller
5. Refrigeration Circuit
Outdoor Unit
Multi Controller
6. Display Information and Fault Codes
7. Circuit Test Procedure
8. Calculation for Additional Gas Charge
Note : The two pipe Super Multi systems are heat pump units and can
provide heating or cooling, where both modes are required simultaneously
heating mode takes priority.
AUGUST 1997
Page 2
TOSHIBA
1. Specifications
OUTDOOR UNITS
Model
Cooling Capacity
Heating Capacity
Power Supply
Power Consumption
Running Current
Start Current
Dimensions
Weight
Noise Level SPL
Min Temp. (ambient)
Gas Pipe (main)
(sub)
Liquid Pipe (main)
(sub)
Max.. Length Actual
Max.. Length Equiv.
Height Difference
Refrigerant Type
Std Refrigerant Weight
Compressor Type
Compressor Output
Fan Type
Fan Motor Consumption
Air Flow Rate
Colour
Multi Controllers
MAR-M81HTM8-E
MAR-M101HTM8-E
20.0 (22.4)
25.0 (28.0)
20.0 (25.0)
25.0 (31.5)
3ph,380/415v,50Hz
8.0 / 7.7
10.1 / 10.1
12.3 / 11.7
15.7 / 15.0
60
1,490
1,290
824
308
315
66
-5 / -10
1 1/8
3/4
5/8
1/2
100
120
50
20
R 22
15.6
18.6
Hermetically Sealed Twin Scroll
5.6
7.5
2 x Propeller Fan (two speed)
2 x 150
10,000
kW
kW
(C/H) kW
(C/H) Amps
Amps
Height (mm)
Width (mm)
Depth (mm)
kg
dB(A)
Cooling / Heating ºC
Inch
Inch
Inch
Inch
m
m
Outdoor Above (m)
Outdoor Below (m)
Kg
kW
W
m³/hr
Silky Grey (Munsell 6Y7.0/0.3)
3 - Way
4 - Way
RBM-Y1032E-E
RBM-Y1042E-E
Note: The capacity value in brackets is the maximum operating capacity
Cooling and Heating capacities are based on JIS B8615
Cooling capacity:
Room Temperature
27ºC DB
19.5ºC WB
Ambient Temperature
35ºC DB
Heating capacity:
Room Temperature
21ºC DB
Ambient Temperature
7ºC DB
6ºC WB
Usable outdoor temperature ranges
Cooling mode
-5ºC to +43ºC DB
Heating mode
-10ºC to +21ºC DB
Specifications are subject to change without prior notice.
AUGUST 1997
Page 3
TOSHIBA
1. Specifications
MULTI CONTROLLERS
Model
Number of Branches
Gas Pipe (Inlet)
Liquid Pipe (Inlet)
Branch Pipes (Gas)
Branch Pipes (Liquid)
Dimensions
Weight
Max.. Branch Length
Max.. Difference between
Branches
Max.. Vertical Separation
Where two M/C are used
Max.. Sub Pipe Length (each)
Max.. Difference between
Sub Pipes
Inch
Inch
Inch
Inch
Height (mm)
Width (mm)
Depth (mm)
kg
m
m
RBM-Y1032E-E
3
1 1/8
5/8
3/4 x 3
3/8 x 3
260
590
450
20
30
10
RBM-Y1042E-E
4
1 1/8
5/8
3/4 x 4
3/8 x 4
260
590
520
23
30
10
m
15
15
m
m
15
10
15
10
Specifications are subject to change without prior notice.
Pipe Size Conversion Chart
mm
inch
6.4
1/4
9.5
3/8
12.7
1/2
15.9
5/8
AUGUST 1997
Page 4
19
3/4
22.4
7/8
25.4
1
28.6
1.1/8
TOSHIBA
2. Basic Permutations of Indoor to Outdoor Units
The indoor units are given a code number according to their capacity rank - see below
Model Number
RAV103
RAV132/133
RAV453/160/1/2/3
RAV202/3
RAV713/260/1/2/3
RAV1003/360/1/2/3
RAV1253/460/1/2/3
Code Number
2
3
4
5
6
8
10
Multiple indoor units may be connected to one outdoor unit, providing the total indoor code does not
exceed the outdoor unit code number. The outdoor unit codes are listed below
Model
MAR-M81HTM8-E
MAR-M101HTM8-E
Max.. No. Indoor Units
8
8
Min Code
3
3
Max. Code
21
27
When connecting up to four single indoor units only one multi controller is required, if more single
indoor units are needed then two multi controllers must be used. When connecting a twin indoor
arrangement to one multi controller branch the capacity code will be the sum of both indoor unit
codes.
Example :
Model No.
RAV133TUH
RAV133TUH
RAV202KH(W)
RAV202KH(W)
Arrangement
Single
Twin
Single
Twin
Indoor Capacity Code Total Capacity Code
3
3
3
6
5
5
5
10
Total
24
The total capacity codes for the example above are within the maximum permitted for a 10hp
(MAR-F101HTM8-E) outdoor unit therefore the use of a twin arrangement is acceptable.
NOTE : The maximum duty from the system cannot exceed the maximum capacity of the outdoor
unit, it is possible to use indoor uits with a total capacity of 135% of the outdoor unit capacity.
AUGUST 1997
Page 5
TOSHIBA
CONSTRUCTION VIEWS
MAR-M81HTM8E-E
MAR-M101FHTM8E-E
98 mm
1182 mm
1290 mm
1100 mm
650 mm
790 mm
824 mm
90 mm
750 mm
610 mm
375 mm
65 mm
135 mm
120 mm
L
G
130 mm
160 mm
AUGUST 1997
Page 6
TOSHIBA
DIMENSIONAL DRAWINGS
RBM-Y1032E-E
300 mm
Oval holefor
hanging bolt
Slit for hanging bolt
15 mm
15 mm
560 mm
590 mm
90 mm
170 mm
170 mm
490 mm
85 mm
55 mm
Electric Parts Box
90 mm
90 mm
90 mm
90 mm
90 mm
500 mm
or more
50 mm
100 mm
or more
80 mm
250 mm
500 mm
or more
Refrigerant piping joint (Flare)
Liquid Side Ø 9.5
125 mm
450 mm
100 mm
Wiring Entrance
500 mm
or more
Note. Make an inspection opening at
the specified place. It is indispensable
for servicing.
Refrigerant piping joint (Flare)
Liquid Side Ø 15.9
Refrigerant piping joint (Flare)
Discharge Gas Side Ø 19
50 mm
80 mm
205 mm
Wiring Entrance Ø 36
Refrigerant piping joint (Brazed)
Suction Gas Side Ø 28.6
450 x 450
Inspection opening
Refrigerant piping joint (Flare)
Gas Side Ø 19
60 mm
AUGUST 1997
Page 7
TOSHIBA
DIMENSIONAL DRAWINGS
RBM-Y1042E-E
370 mm
Oval holefor
hanging bolt
Slit for hanging bolt
15 mm
560 mm
590 mm
90 mm
170 mm
85 mm
55 mm
90 mm
90 mm
90 mm
90 mm
90 mm
90 mm
Electric Parts Box
170 mm
490 mm
90 mm
500 mm
or more
50 mm
100 mm
or more
80 mm
250 mm
500 mm
or more
Refrigerant piping joint (Flare)
Liquid Side Ø 9.5
Wiring Entrance
125 mm
190 mm
520 mm
500 mm
or more
Note. Make an inspection opening at
the specified place. It is indispensable
for servicing.
Refrigerant piping joint (Flare)
Liquid Side Ø 15.9
Refrigerant piping joint (Flare)
Discharge Gas Side Ø 19
50 mm
80 mm
205 mm
Wiring Entrance Ø 36
Refrigerant piping joint (Brazed)
Suction Gas Side Ø 28.6
450 x 450
Inspection opening
Refrigerant piping joint (Flare)
Gas Side Ø 19
60 mm
AUGUST 1997
Page 8
TOSHIBA
4. Schematic Wiring Diagrams
Outdoor Unit
Reactor
Giant
Transistor
Electric Starter
Rectifier
Smoothing Circuit
2200λ F/400v x 2
47kΩ/20W x 2
(~)
+
12
(~)
Contactor
52C2
W
V
U +
Diode
Clipper
1ℜ
Noise
Filter
Diode
Clipper
Contactor
52C1
-
-
(~)
CD2
U V W
1234
CD2
3ℜ
Noise Filter
CM1
Capacitor
1λ F x 3
Fuses
20A x 3
Inverter
Compressor
123 123 123 1234567
CN24 CN23 CN22
CN25
1234567 1234
CN4
CN8
P01
CD1
P02
3
CN2 2
1
Gate Drive PCB
MCC - 1252
CN21
Reversing
Valve
ThE
1
2
3
20SF
123456789
3
2 CN121
1
Thermal Fuse
TRS
1
2
3
Crankcase
Heater
Inverter HP
Sw
63H1 Klixon
Inverter
49C1
1
DOL Klixon
49C2
2
123456789
1
2
3 CN6
4
5
6
7
2
123
CN5
CN9
CN1
Tr2
INVERTER CONTROL
PCB
MCC - 1251
CN2
1
DOL HP Sw
63H2
1
2
3
4
1
2 PJ5
3
Tr1
CM2
D.O.L.
Compressor
ThD1 ThD2 ThS
Pressure
Sensor
Display LED x 8
W
1ℜ
Noise
Filter
V
U
Contactor
52C3
P2
PJ6
Display
Switch
P1
PJ10
123
123
PJ1
WHI
PJ2
BLK
PJ3
BLU
INTERFACE CONTROL
PCB
MCC - 1211
PJ11
12345
Return
Lock
123
PJ12
1 2 3 4 5 6 7 8 9
12345
PJ16
PJ15
PJ7
123
12345
1 2
54321
PJ8
1 2 3 4
1 2 3 4
1 2
1 2 3 4 5 6
FM2
FM1
6
Fuses
2 x 7A
5
4
3
2
Surge
Absorber
1
Fuse 20A
RC2
1ℜ
Noise
Filter
1
2
7
8
9
10
11
RC1
12
1 2 3 4 5 6 7 8 9
CAPACITORS
2200λ F x 2
SV1
Surge
Absorber
L1
L2
L3
N
POWER SUPPLY
50Hz 3ℜ 380/415 v
1
2
M/C (1)
3
1
2
3
M/C (2)
SV2
SV3
Solenoid Valves
= 240 v ac Live (not permanent)
= Neutral (not permanent)
= Communication Signal
= Earth
= L1 phase 415ac
= L2 phase 415ac
= L3 phase 415ac
= dc high voltage live
= dc high voltage neutral
= 3Ø for Inv Compressor
= dc low voltage
= ac low voltage
= ac low voltage
AUGUST 1997
Page 9
Fan Motors
PMV1
Pulsed
Modulating
Valve
Low Pressure
Switch 63L
Note :The colours used in this diagram are not
representative of those on the actual producct,
they are intended to indicate the status of each
wire.
TOSHIBA
4. Schematic Wiring Diagrams
Multi Controllers
PMVA
PMVB
PMVC
ThA
PMVD
ThB
ThC
ThD
ThX
Transformer
5
4 3
2
1
5
4 3
2
1
PJ 7
PJ 6
5
4 3
2
1
5
PJ 8
4 3
2
1
3
PJ 9
2
1
3
PJ 1
Float
Switch
2
PJ 2
1
3
2
PJ 3
1
3
2
PJ 4
1
3
2
1
1
2
Sump
Heater
3
PJ 16
PJ 5
2
PJ 14
LD 1
LD 2
_
|_|
|_|
_
|_|
|_|
2
PJ 10
1
Capacity Code
Swiches
Display
Switch
1
2
PJ 13
1
5
4
PJ 12
Multi Controller P.C.
Board
MCC - 1210
TP 2
TP 1
Branch Branch Branch Branch
A
B
C
D
3
2
1
Microswitch
COM
NO NC
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
INDOOR
UNIT A
INDOOR
UNIT B
The colours used in this
diagram are not
representative of those on
the product, they are
intended to indicate the
status of each wire.
= 240v ac Live Wiring
= Neutral Wiring
= Serial Wiring
= Earth Wiring
= ac low voltage
= ac low voltage
INDOOR
UNIT C
1
1
2
2
3
3
1
1
2
2
OUTDOOR
UNIT
INDOOR
UNIT D
RBM - Y1032E - E does not have
PMVD, ThD, indoor unit D connections
or the capacity code switch for branch D.
AUGUST 1997
Page 10
3
3
TOSHIBA
5. Schematic Refrigeration Diagram
Outdoor Unit
INVERTER
H.P. SWITCH
ThE
COMPRESSOR
EXPANSION
VALVE
SERVICE
VALVE
PRESSURE
SENSOR
LOW
PRESSURE
SWITCH
ThD1
INVERTER
COMPRESSOR
DRIER
ThS
LIQUID
TANK
CHECK VALVE
HEAT
EXCHANGER
D.O.L.
COMPRESSOR
SV1
HIGH
PRESSURE
RELEASE
ThD2
4-WAY
VALVE
D.O.L.
H.P.SWITCH
SERVICE
VALVE
SV2
FOR GAS
BALANCE
STRAINER
SV4
FOR
COMP 2
START UP
PMV1
COOLING
BYPASS
ACCUMULATOR
Specification of Outdoor Unit Components
Model Number
Compressor
Fan Motor
H.P. Switch Inv.
H.P. Switch DOL
L.P. Switch
ThD1 & ThD2 Sensor
ThS & ThE
Four Way Valve
Crankcase Heater (240vac)
Type Number
Motor Type
Power Supply
Output
(kW)
Coil Resistance (Ω)
Type Number
Motor Type
Power Supply
Consumption
(W)
Current
(A)
No. Poles
Thermal Cut-out
P.S.I.G.
P.S.I.G.
P.S.I.G.
(kΩ)
(kΩ)
(W)
MAR-M81HTM8-E
MAR-M101HTM8-E
HV991CW-Y12
HV1201CW-Y12
Three Phase Induction
415/380 , 3-phase , 50Hz + Neutral
5.6
7.5
Inv.1.49 / DOL 2.51
STF-200-150C
Single Phase Induction
220 / 240 , single phase , 50Hz + Neutral
150
1.12 - 1.44
6
Trip 115ºC ✁ 5ºC
Break on Rise : Trip 425 , Reset 340
Make on Rise : Trip 425 , Reset 340
Break on Drop : Trip 3.5 , Reset 20
50 @ 25ºC , 17.9 @ 50ºC , 3.35 @ 100ºC
32.8 @ 0ºC , 10 @ 25ºC , 3.6 @ 50ºC
Energised for Heating
74
AUGUST 1997
Page 11
TOSHIBA
5. Schematic Refrigeration Diagram
Multi Controller
INDOOR UNIT
EXPANSION VALVE
BRANCH A
PMV(A)
STRAINER
CHECK VALVE
EXPANSION VALVE
PMV(B)
STRAINER
STRAINER
LIQUID PIPE
BRANCH B
CHECK VALVE
EXPANSION VALVE
PMV(C)
STRAINER
BRANCH C
CHECK VALVE
EXPANSION VALVE
PMV(D)
STRAINER
BRANCH D
STRAINER
CHECK VALVE
ThX
ThA
ThB
GAS PIPE
ThC
ThD
The schematic shows the layout for a four way multi controller (RBM-Y1042E-E), the three way
multi controller (RBM-Y1302E-E) is very similar however all components relating to branch D have
been removed.
Specification of Multi Controller Components
Model Number
ThA,B,C,D,X Sensor
Float Switch
Sump Heater (240vac)
Thermal Fuse
Heater Fuse
Transformer
(kΩ)
(W)
(ºC)
(Amps)
Primary / Secondary (v ac)
AUGUST 1997
Page 12
RBM-Y1032E-E
RBM-Y1042E-E
32.8 @ 0ºC , 10 @ 25ºC , 3.6 @ 50ºC
Break on Rise
50
65
Trips at 119
1
240 / 12
TOSHIBA
6. Fault Code and Display Information
Fault Codes
Before reading the fault codes do not turn the power off as doing so will wipe the diagnostic
memory. Caution must be taken when removing the access covers as high voltages are present.
Fault diagnosis is available at three locations within the air conditioning system :1. Remote Controller - press the check button
2. Multi Controller - rotate the display switch to position 1
3. Outdoor Unit - see following text
Remote Controller
Press Check
O4
O4
O4
Ob
OC
No Communication
Inverter to Interface
No Communication
Multi Con to Outdoor
No Communication
Indoor to Multi Con
I.D. Water Level
TA Sensor
Multi Controller
Switch Position 1
è
O4
è
O4
88
No Communication
Inverter to Interface
No Communication Multi
Con to Outdoor
Outdoor Unit
è
No Communication Inverter to Interface
80
81
82
83
No Communication
Initially M/C to OD
Th(A) Sensor Fault
Th(B) Sensor Fault
Th(C) Sensor Fault
Th(D) Sensor Fault
ç
ç
ç
ç
LED1
LED2
LED3
LED4
Th(A) Sensor Fault
Th(B) Sensor Fault
Th(C) Sensor Fault
Th(D) Sensor Fault
LED5
Th(X) Sensor Fault
LED6
LED7
LED8
M/C Water Level
M/C Settings too High
M/C1 Sensor Fault
M/C2 Sensor Fault
Display Switch set to “8” (if lit....)
Od
O8
O9
99
TC Sensor
Reverse Change Temp
Frost or no Change ºC
No Communication
Indoor to Rem Con.
84
Th(X) Sensor Fault
ç
15
Refer to Multi Con
Preheat/Defrost Flash
ì
è
Ob
89
M/C Water Level
ID Codes too High
ID Codes set to Zero
ç
ç
1C
Refer to O/D
è
1C
Refer to O/D
è
14
1d
1F
18
Refer to O/D
Refer to O/D
Refer to O/D
Refer to O/D
è
è
è
è
14
1d
1F
18
Refer to O/D
Refer to O/D
Refer to O/D
Refer to O/D
è
è
è
è
21
Refer to O/D
è
21
Refer To O/D
è
î
- = LED Flashing
see Table 1
m = LED On
AUGUST 1997
Page 13
Display Switch set to “3” (if lit....)
LED1
ThD1 Sensor Fault
LED2
ThD2 Sensor Fault
LED3
ThS Sensor Fault
LED4
High Pressure - detected by pressure
sensor
LED5
Pressure Sensor Fault
LED6
Discharge Pipe >130ºC
LED7
Suction Pipe >40ºC
LED8
Low Pressure <3.5psig
SW01 Set to Off/Off
-mmm Low Inverter Voltage
m-mm High Inverter Current dc
mm-m High Inverter Current ac
ThE Sensor Fault
mmm-
Inv HP Trip, Comp Klixon
Phase Rotation, DOL HP Trip, O/Load,
Comp Klixon
TOSHIBA
6. Fault Code and Display Information
Display switch information
Multicontroller
Switch position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Information
System Communication
Fault Codes
Level of Demand
Oil Retrieval, Superheat, Defrost
Operating Mode
Restart Timer
Circuit Test (commissioning only)
PMV(A) Position
PMV(B) Position
PMV(C) Position
PMV(D) Position
ThA Sensor Data (Hex Code)
ThB Sensor Data (Hex Code)
ThC Sensor Data (Hex Code)
ThD Sensor Data (Hex Code)
ThX Sensor Data (Hex Code)
Outdoor Unit
Switch position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Information
System Communication
Status of Compressors
System Status (Mode, Defrost, PMV)
Fault Diagnostics (Outdoor Unit)
M/C1 Branches A & B Indoor Capacity Codes
M/C1 Branches C & D Indoor Capacity Codes
M/C2 Branches A & B Indoor Capacity Codes
M/C2 Branches C & D Indoor Capacity Codes
Fault Diagnostics (Multi Controller)
Circuit Test (commissioning only)
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
AUGUST 1997
Page 14
TOSHIBA
6. Fault Code and Display Information
Multi Controller Display Switch Information
Switch Indicates
Pos.
LD 1
_
|_|
|_|
0
Serial
1
Fault
Codes
Demand
2
3
_
|_|
|_|
|
From B
Branch
To B
Branch
Timer
cct test
_
|_|
|_
_|
_
|_|
|_|
_
|_|
|_|
_
|_
_|
|_|
To A
Branch
From A
Branch
From
Outdoor
_
|_|
|_|
_
|_|
|
|_|
_
|_|
|_|
|
From D
Branch
To D
Branch
_
|_|
|_
_|
_
|_|
|_|
_
|_|
|_|
_
|_
_|
|_|
To C
Branch
From C
Branch
To
Outdoor
For Details of Fault Codes see Page 13
Level of Cooling/Heating Demand (00-1F)
Oil Ret
brch B
Defrost
4
5
6
7
8
9
10
11
12
13
14
15
_
|_|
|
|_|
LD 2
Superheat
brchB
Superheat Oil Ret
brchA
brchA
Oil Ret
brch D
Superheat
brchD
Superheat Oil Ret
brchC
brchC
Displays “dF” during defrost operation
Operating Mode :Heating (H-), Cooling (-C), Stop (--), Defrost (J-)
Normal Display (OO), Restart Timer Displays (-1) During Count Down
Displays Branch Being Tested (A b C d)
Indicates Faulty Branch Connection After Circuit Test
PMVA
Displays Degree Of PMV Opening As A Hexadecimal Code :
(OO) = Closed , (FO) = Fully Open
PMVB
PMVC
PMVD
ThA
ThB
ThC
ThD
ThX
Displays Sensor Readings As A Hexadecimal Code :
40=0ºC ; 68=10ºC ; 90=20ºC ; b8=30ºC
The Hexadecimal codes can be interpreted using the following chart
Display
OO
1O
2O
3O
4O
5O
6O
7O
8O
9O
AO
bO
CO
dO
EO
FO
PMVAngle
Closed
16
32
48
64
80
96
112
128
144
160
176
192
208
224
240
Th-AbCdX
ºC
-8
-4
0
4
8
12
16
20
24
28
32
Display
OO
O1
O2
O3
O4
O5
O6
O7
O8
O9
OA
Ob
OC
Od
OE
OF
Level Of Demand
Hz
Display
0
0
0
3.9
6.9
10
13
16.2
19.3
22.4
25.5
28.6
31.7
34.8
37.9
41
1O
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1
1F
The above chart shows a sample of readings, other intermediate readings may be registered.
AUGUST 1997
Page 15
Hz
44.1
47.2
50.3
53.4
56.5
59.6
62.7
65.8
68.9
72
75.1
78.2
81.3
84.4
87.5
90
TOSHIBA
6. Fault Code and Display Information
Outdoor Unit Display Switch Information
The operating status of the outdoor unit and fault diagnosis can be made using both the display
selector switch (on the interface pcb) and the eight red light emitting diodes on the interface printed
circuit board.
a. Display switch set to position “0” shows communication around the system
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
Lit = Receiving serial signal from multi controller 1
Lit = Sending serial signal to multi controller 1
Lit = Receiving serial signal from multi controller 2
Lit = Sending serial signal to multi controller 2
Lit = Receiving serial signal from inverter printed circuit board
Lit = Sending serial signal to inverter printed circuit board
n/a
n/a
b. Display switch set to position “1” shows status of both compressors
Inverter Speed
S0
0 Hz
S3
30 Hz
S4
36 Hz
S5
42 Hz
S6
46 Hz
S7
53 Hz
S8
61 Hz
S9
69 Hz
SA
76 Hz
SB
84 Hz
SC
92 Hz
SD
103 Hz
SE
111 Hz
SF
122 Hz
LED 1
X
X
X
X
X
X
O
O
O
O
O
O
O
O
O = Lit
LED 2
X
X
O
O
O
O
X
X
X
X
O
O
O
O
LED 3
X
O
X
X
O
O
X
X
O
O
X
X
O
O
LED4
X
O
X
O
X
O
X
O
X
O
X
O
X
O
LED 5
LED 6
DOL compressor
On On = Run
Off Off = Stop
X = Off
c. Display switch set to position “2” shows the status of the system
AUGUST 1997
Page 16
LED 7
LED 8
Speed Limiting
Due To Protection
Circuits i.e.
High TD or Low TS
TOSHIBA
6. Fault Code and Display Information
Outdoor Unit Display Switch Information cont.
d. Display switch set to position “3” identifies a fault condition in the outdoor unit.
Details are in the fault code chart on page 13
e. Display switch set to positions “4, 5, 6 & 7” identifies the indoor unit capacity code for each
branch.
Pos. 4
Pos. 5
Pos. 6
Pos. 7
LED 1
LED 2
LED 3
LED4
Capacity code of unit on M/C 1 branch A
Capacity code of unit on M/C 1 branch C
Capacity code of unit on M/C 2 branch A
Capacity code of unit on M/C 2 branch C
O = Lit
X = Off
X
X
O
X
X
X
O
O
X
O
X
X
X
O
X
O
X
O
O
X
X
O
O
O
O
X
X
X
O
X
O
X
LED 5
LED 6
LED 7
LED 8
Capacity code of unit on M/C 1 branch B
Capacity code of unit on M/C 1 branch D
Capacity code of unit on M/C 2 branch B
Capacity code of unit on M/C 2 branch D
Indoor Model Number
Code No
103
2
132/133
3
453/160/161/162/163
4
200/202/203
5
713/260/261/262/263
6
1,003/360/361/362/363
1,253/460/461/462/463
8
10
f. Display switch set to position “8” identifies a fault condition in the multi controller.
Details are in the fault code chart on page 13
g. Display switch set to position “9” shows the status of the commissioning circuit test.
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
M/C 1
M/C 2
Branch A
Branch B
Branch C
Branch D
Branch A
Branch B
Branch C
Branch D
AUGUST 1997
Page 17
When an LED is lit it indicates that there is
a wiring or piping fault between the multi
controller and the relevant indoor unit.
TOSHIBA
7. Circuit Test Procedure
These systems have a feature which enables them to check that the wiring and piping connections are
aligned with each other. This is carried out by allowing refigerant flow to one indoor unit at a time
and monitoring that indoor unit’s coil sensor for a corresponding drop in temperature. Each indoor
unit is tested in turn and where two multi controllers are installed each multi controller is tested in
turn.
This test would normally be used at the commissioning stage.
Procedure for initialising the circuit test.
1.
2.
3.
4.
5.
6.
7.
8.
Turn the power off, and disconnect any T2s (optional) fitted.
Put the outdoor display switch to 9 and multi controller(s) display switch to 6.
Turn the power back on.
Set all the remote controllers to cool mode and 29ºC.
Press the on/off button to start the indoor units (fans will run).
Go to outdoor unit press switch J2 (above 8 x LEDs) for 3 sec .
The system is now self-testing (all 8 LEDs will be flashing rapidly).
The system will stop at the end of the test, indicated by the on/off lights flashing.
In the event of cross wiring/piping the system will indicate which units are faulty, see pages 15 & 17
AUGUST 1997
Page 18
TOSHIBA
8. Calculating The Additional Gas Charge
Main Pipes
0.19 kg/m
Branch Pipes
RAV-103 ; 0.030 kg/m
RAV-133 ; 0.030 kg/m
RAV-162 ; 0.030 kg/m
RAV-202 ; 0.030 kg/m
Sub Pipes
0.125 kg/m
RAV-262 ; 0.045 kg/m
RAV-362 ; 0.045 kg/m
RAV-462 ; 0.045 kg/m
Single Multi Controller
Main pipe run (minus 3m.)
Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
Two Multi Controllers
Main pipe run (minus 2m.)
Total sub pipe (minus 2m.)
M/C1 Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
M/C2 Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
x
0.190 kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
Total Additional Gas Charge
=
=
=
=
=
= _________________kg
x
0.190 kg/m
x
0.125 kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
Total Additional Gas Charge
=
=
=
=
=
=
=
=
=
=
= _________________kg
AUGUST 1997
Page 19
TOSHIBA
SERVICE MANUAL
AIR CONDITIONER
HEAT PUMP MULTI SPLIT (2-PIPE)
Outdoor Units
MAR - M81HTM8 - E
MAR - M101HTM8 - E
Multi Controllers
RBM - Y1032E - E
RBM - Y1042E - E
AUGUST 1997
Page 1
TOSHIBA
Contents
1. Specifications
Outdoor Unit
Multi Controller
2. Basic Permutations / Capabilities
3. Dimensional Views
Outdoor Unit
Multi Controller
4. Wiring Diagrams
Outdoor Unit
Multi Controller
5. Refrigeration Circuit
Outdoor Unit
Multi Controller
6. Display Information and Fault Codes
7. Circuit Test Procedure
8. Calculation for Additional Gas Charge
Note : The two pipe Super Multi systems are heat pump units and can
provide heating or cooling, where both modes are required simultaneously
heating mode takes priority.
AUGUST 1997
Page 2
TOSHIBA
1. Specifications
OUTDOOR UNITS
Model
Cooling Capacity
Heating Capacity
Power Supply
Power Consumption
Running Current
Start Current
Dimensions
Weight
Noise Level SPL
Min Temp. (ambient)
Gas Pipe (main)
(sub)
Liquid Pipe (main)
(sub)
Max.. Length Actual
Max.. Length Equiv.
Height Difference
Refrigerant Type
Std Refrigerant Weight
Compressor Type
Compressor Output
Fan Type
Fan Motor Consumption
Air Flow Rate
Colour
Multi Controllers
MAR-M81HTM8-E
MAR-M101HTM8-E
20.0 (22.4)
25.0 (28.0)
20.0 (25.0)
25.0 (31.5)
3ph,380/415v,50Hz
8.0 / 7.7
10.1 / 10.1
12.3 / 11.7
15.7 / 15.0
60
1,490
1,290
824
308
315
66
-5 / -10
1 1/8
3/4
5/8
1/2
100
120
50
20
R 22
15.6
18.6
Hermetically Sealed Twin Scroll
5.6
7.5
2 x Propeller Fan (two speed)
2 x 150
10,000
kW
kW
(C/H) kW
(C/H) Amps
Amps
Height (mm)
Width (mm)
Depth (mm)
kg
dB(A)
Cooling / Heating ºC
Inch
Inch
Inch
Inch
m
m
Outdoor Above (m)
Outdoor Below (m)
Kg
kW
W
m³/hr
Silky Grey (Munsell 6Y7.0/0.3)
3 - Way
4 - Way
RBM-Y1032E-E
RBM-Y1042E-E
Note: The capacity value in brackets is the maximum operating capacity
Cooling and Heating capacities are based on JIS B8615
Cooling capacity:
Room Temperature
27ºC DB
19.5ºC WB
Ambient Temperature
35ºC DB
Heating capacity:
Room Temperature
21ºC DB
Ambient Temperature
7ºC DB
6ºC WB
Usable outdoor temperature ranges
Cooling mode
-5ºC to +43ºC DB
Heating mode
-10ºC to +21ºC DB
Specifications are subject to change without prior notice.
AUGUST 1997
Page 3
TOSHIBA
1. Specifications
MULTI CONTROLLERS
Model
Number of Branches
Gas Pipe (Inlet)
Liquid Pipe (Inlet)
Branch Pipes (Gas)
Branch Pipes (Liquid)
Dimensions
Weight
Max.. Branch Length
Max.. Difference between
Branches
Max.. Vertical Separation
Where two M/C are used
Max.. Sub Pipe Length (each)
Max.. Difference between
Sub Pipes
Inch
Inch
Inch
Inch
Height (mm)
Width (mm)
Depth (mm)
kg
m
m
RBM-Y1032E-E
3
1 1/8
5/8
3/4 x 3
3/8 x 3
260
590
450
20
30
10
RBM-Y1042E-E
4
1 1/8
5/8
3/4 x 4
3/8 x 4
260
590
520
23
30
10
m
15
15
m
m
15
10
15
10
Specifications are subject to change without prior notice.
Pipe Size Conversion Chart
mm
inch
6.4
1/4
9.5
3/8
12.7
1/2
15.9
5/8
AUGUST 1997
Page 4
19
3/4
22.4
7/8
25.4
1
28.6
1.1/8
TOSHIBA
2. Basic Permutations of Indoor to Outdoor Units
The indoor units are given a code number according to their capacity rank - see below
Model Number
RAV103
RAV132/133
RAV453/160/1/2/3
RAV202/3
RAV713/260/1/2/3
RAV1003/360/1/2/3
RAV1253/460/1/2/3
Code Number
2
3
4
5
6
8
10
Multiple indoor units may be connected to one outdoor unit, providing the total indoor code does not
exceed the outdoor unit code number. The outdoor unit codes are listed below
Model
MAR-M81HTM8-E
MAR-M101HTM8-E
Max.. No. Indoor Units
8
8
Min Code
3
3
Max. Code
21
27
When connecting up to four single indoor units only one multi controller is required, if more single
indoor units are needed then two multi controllers must be used. When connecting a twin indoor
arrangement to one multi controller branch the capacity code will be the sum of both indoor unit
codes.
Example :
Model No.
RAV133TUH
RAV133TUH
RAV202KH(W)
RAV202KH(W)
Arrangement
Single
Twin
Single
Twin
Indoor Capacity Code Total Capacity Code
3
3
3
6
5
5
5
10
Total
24
The total capacity codes for the example above are within the maximum permitted for a 10hp
(MAR-F101HTM8-E) outdoor unit therefore the use of a twin arrangement is acceptable.
NOTE : The maximum duty from the system cannot exceed the maximum capacity of the outdoor
unit, it is possible to use indoor uits with a total capacity of 135% of the outdoor unit capacity.
AUGUST 1997
Page 5
TOSHIBA
CONSTRUCTION VIEWS
MAR-M81HTM8E-E
MAR-M101FHTM8E-E
98 mm
1182 mm
1290 mm
1100 mm
650 mm
790 mm
824 mm
90 mm
750 mm
610 mm
375 mm
65 mm
135 mm
120 mm
L
G
130 mm
160 mm
AUGUST 1997
Page 6
TOSHIBA
DIMENSIONAL DRAWINGS
RBM-Y1032E-E
300 mm
Oval holefor
hanging bolt
Slit for hanging bolt
15 mm
15 mm
560 mm
590 mm
90 mm
170 mm
170 mm
490 mm
85 mm
55 mm
Electric Parts Box
90 mm
90 mm
90 mm
90 mm
90 mm
500 mm
or more
50 mm
100 mm
or more
80 mm
250 mm
500 mm
or more
Refrigerant piping joint (Flare)
Liquid Side Ø 9.5
125 mm
450 mm
100 mm
Wiring Entrance
500 mm
or more
Note. Make an inspection opening at
the specified place. It is indispensable
for servicing.
Refrigerant piping joint (Flare)
Liquid Side Ø 15.9
Refrigerant piping joint (Flare)
Discharge Gas Side Ø 19
50 mm
80 mm
205 mm
Wiring Entrance Ø 36
Refrigerant piping joint (Brazed)
Suction Gas Side Ø 28.6
450 x 450
Inspection opening
Refrigerant piping joint (Flare)
Gas Side Ø 19
60 mm
AUGUST 1997
Page 7
TOSHIBA
DIMENSIONAL DRAWINGS
RBM-Y1042E-E
370 mm
Oval holefor
hanging bolt
Slit for hanging bolt
15 mm
560 mm
590 mm
90 mm
170 mm
85 mm
55 mm
90 mm
90 mm
90 mm
90 mm
90 mm
90 mm
Electric Parts Box
170 mm
490 mm
90 mm
500 mm
or more
50 mm
100 mm
or more
80 mm
250 mm
500 mm
or more
Refrigerant piping joint (Flare)
Liquid Side Ø 9.5
Wiring Entrance
125 mm
190 mm
520 mm
500 mm
or more
Note. Make an inspection opening at
the specified place. It is indispensable
for servicing.
Refrigerant piping joint (Flare)
Liquid Side Ø 15.9
Refrigerant piping joint (Flare)
Discharge Gas Side Ø 19
50 mm
80 mm
205 mm
Wiring Entrance Ø 36
Refrigerant piping joint (Brazed)
Suction Gas Side Ø 28.6
450 x 450
Inspection opening
Refrigerant piping joint (Flare)
Gas Side Ø 19
60 mm
AUGUST 1997
Page 8
TOSHIBA
4. Schematic Wiring Diagrams
Outdoor Unit
Reactor
Giant
Transistor
Electric Starter
Rectifier
Smoothing Circuit
2200λ F/400v x 2
47kΩ/20W x 2
(~)
+
12
(~)
Contactor
52C2
W
V
U +
Diode
Clipper
1ℜ
Noise
Filter
Diode
Clipper
Contactor
52C1
-
-
(~)
CD2
U V W
1234
CD2
3ℜ
Noise Filter
CM1
Capacitor
1λ F x 3
Fuses
20A x 3
Inverter
Compressor
123 123 123 1234567
CN24 CN23 CN22
CN25
1234567 1234
CN4
CN8
P01
CD1
P02
3
CN2 2
1
Gate Drive PCB
MCC - 1252
CN21
Reversing
Valve
ThE
1
2
3
20SF
123456789
3
2 CN121
1
Thermal Fuse
TRS
1
2
3
Crankcase
Heater
Inverter HP
Sw
63H1 Klixon
Inverter
49C1
1
DOL Klixon
49C2
2
123456789
1
2
3 CN6
4
5
6
7
2
123
CN5
CN9
CN1
Tr2
INVERTER CONTROL
PCB
MCC - 1251
CN2
1
DOL HP Sw
63H2
1
2
3
4
1
2 PJ5
3
Tr1
CM2
D.O.L.
Compressor
ThD1 ThD2 ThS
Pressure
Sensor
Display LED x 8
W
1ℜ
Noise
Filter
V
U
Contactor
52C3
P2
PJ6
Display
Switch
P1
PJ10
123
123
PJ1
WHI
PJ2
BLK
PJ3
BLU
INTERFACE CONTROL
PCB
MCC - 1211
PJ11
12345
Return
Lock
123
PJ12
1 2 3 4 5 6 7 8 9
12345
PJ16
PJ15
PJ7
123
12345
1 2
54321
PJ8
1 2 3 4
1 2 3 4
1 2
1 2 3 4 5 6
FM2
FM1
6
Fuses
2 x 7A
5
4
3
2
Surge
Absorber
1
Fuse 20A
RC2
1ℜ
Noise
Filter
1
2
7
8
9
10
11
RC1
12
1 2 3 4 5 6 7 8 9
CAPACITORS
2200λ F x 2
SV1
Surge
Absorber
L1
L2
L3
N
POWER SUPPLY
50Hz 3ℜ 380/415 v
1
2
M/C (1)
3
1
2
3
M/C (2)
SV2
SV3
Solenoid Valves
= 240 v ac Live (not permanent)
= Neutral (not permanent)
= Communication Signal
= Earth
= L1 phase 415ac
= L2 phase 415ac
= L3 phase 415ac
= dc high voltage live
= dc high voltage neutral
= 3Ø for Inv Compressor
= dc low voltage
= ac low voltage
= ac low voltage
AUGUST 1997
Page 9
Fan Motors
PMV1
Pulsed
Modulating
Valve
Low Pressure
Switch 63L
Note :The colours used in this diagram are not
representative of those on the actual producct,
they are intended to indicate the status of each
wire.
TOSHIBA
4. Schematic Wiring Diagrams
Multi Controllers
PMVA
PMVB
PMVC
ThA
PMVD
ThB
ThC
ThD
ThX
Transformer
5
4 3
2
1
5
4 3
2
1
PJ 7
PJ 6
5
4 3
2
1
5
PJ 8
4 3
2
1
3
PJ 9
2
1
3
PJ 1
Float
Switch
2
PJ 2
1
3
2
PJ 3
1
3
2
PJ 4
1
3
2
1
1
2
Sump
Heater
3
PJ 16
PJ 5
2
PJ 14
LD 1
LD 2
_
|_|
|_|
_
|_|
|_|
2
PJ 10
1
Capacity Code
Swiches
Display
Switch
1
2
PJ 13
1
5
4
PJ 12
Multi Controller P.C.
Board
MCC - 1210
TP 2
TP 1
Branch Branch Branch Branch
A
B
C
D
3
2
1
Microswitch
COM
NO NC
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
INDOOR
UNIT A
INDOOR
UNIT B
The colours used in this
diagram are not
representative of those on
the product, they are
intended to indicate the
status of each wire.
= 240v ac Live Wiring
= Neutral Wiring
= Serial Wiring
= Earth Wiring
= ac low voltage
= ac low voltage
INDOOR
UNIT C
1
1
2
2
3
3
1
1
2
2
OUTDOOR
UNIT
INDOOR
UNIT D
RBM - Y1032E - E does not have
PMVD, ThD, indoor unit D connections
or the capacity code switch for branch D.
AUGUST 1997
Page 10
3
3
TOSHIBA
5. Schematic Refrigeration Diagram
Outdoor Unit
INVERTER
H.P. SWITCH
ThE
COMPRESSOR
EXPANSION
VALVE
SERVICE
VALVE
PRESSURE
SENSOR
LOW
PRESSURE
SWITCH
ThD1
INVERTER
COMPRESSOR
DRIER
ThS
LIQUID
TANK
CHECK VALVE
HEAT
EXCHANGER
D.O.L.
COMPRESSOR
SV1
HIGH
PRESSURE
RELEASE
ThD2
4-WAY
VALVE
D.O.L.
H.P.SWITCH
SERVICE
VALVE
SV2
FOR GAS
BALANCE
STRAINER
SV4
FOR
COMP 2
START UP
PMV1
COOLING
BYPASS
ACCUMULATOR
Specification of Outdoor Unit Components
Model Number
Compressor
Fan Motor
H.P. Switch Inv.
H.P. Switch DOL
L.P. Switch
ThD1 & ThD2 Sensor
ThS & ThE
Four Way Valve
Crankcase Heater (240vac)
Type Number
Motor Type
Power Supply
Output
(kW)
Coil Resistance (Ω)
Type Number
Motor Type
Power Supply
Consumption
(W)
Current
(A)
No. Poles
Thermal Cut-out
P.S.I.G.
P.S.I.G.
P.S.I.G.
(kΩ)
(kΩ)
(W)
MAR-M81HTM8-E
MAR-M101HTM8-E
HV991CW-Y12
HV1201CW-Y12
Three Phase Induction
415/380 , 3-phase , 50Hz + Neutral
5.6
7.5
Inv.1.49 / DOL 2.51
STF-200-150C
Single Phase Induction
220 / 240 , single phase , 50Hz + Neutral
150
1.12 - 1.44
6
Trip 115ºC ✁ 5ºC
Break on Rise : Trip 425 , Reset 340
Make on Rise : Trip 425 , Reset 340
Break on Drop : Trip 3.5 , Reset 20
50 @ 25ºC , 17.9 @ 50ºC , 3.35 @ 100ºC
32.8 @ 0ºC , 10 @ 25ºC , 3.6 @ 50ºC
Energised for Heating
74
AUGUST 1997
Page 11
TOSHIBA
5. Schematic Refrigeration Diagram
Multi Controller
INDOOR UNIT
EXPANSION VALVE
BRANCH A
PMV(A)
STRAINER
CHECK VALVE
EXPANSION VALVE
PMV(B)
STRAINER
STRAINER
LIQUID PIPE
BRANCH B
CHECK VALVE
EXPANSION VALVE
PMV(C)
STRAINER
BRANCH C
CHECK VALVE
EXPANSION VALVE
PMV(D)
STRAINER
BRANCH D
STRAINER
CHECK VALVE
ThX
ThA
ThB
GAS PIPE
ThC
ThD
The schematic shows the layout for a four way multi controller (RBM-Y1042E-E), the three way
multi controller (RBM-Y1302E-E) is very similar however all components relating to branch D have
been removed.
Specification of Multi Controller Components
Model Number
ThA,B,C,D,X Sensor
Float Switch
Sump Heater (240vac)
Thermal Fuse
Heater Fuse
Transformer
(kΩ)
(W)
(ºC)
(Amps)
Primary / Secondary (v ac)
AUGUST 1997
Page 12
RBM-Y1032E-E
RBM-Y1042E-E
32.8 @ 0ºC , 10 @ 25ºC , 3.6 @ 50ºC
Break on Rise
50
65
Trips at 119
1
240 / 12
TOSHIBA
6. Fault Code and Display Information
Fault Codes
Before reading the fault codes do not turn the power off as doing so will wipe the diagnostic
memory. Caution must be taken when removing the access covers as high voltages are present.
Fault diagnosis is available at three locations within the air conditioning system :1. Remote Controller - press the check button
2. Multi Controller - rotate the display switch to position 1
3. Outdoor Unit - see following text
Remote Controller
Press Check
O4
O4
O4
Ob
OC
No Communication
Inverter to Interface
No Communication
Multi Con to Outdoor
No Communication
Indoor to Multi Con
I.D. Water Level
TA Sensor
Multi Controller
Switch Position 1
è
O4
è
O4
88
No Communication
Inverter to Interface
No Communication Multi
Con to Outdoor
Outdoor Unit
è
No Communication Inverter to Interface
80
81
82
83
No Communication
Initially M/C to OD
Th(A) Sensor Fault
Th(B) Sensor Fault
Th(C) Sensor Fault
Th(D) Sensor Fault
ç
ç
ç
ç
LED1
LED2
LED3
LED4
Th(A) Sensor Fault
Th(B) Sensor Fault
Th(C) Sensor Fault
Th(D) Sensor Fault
LED5
Th(X) Sensor Fault
LED6
LED7
LED8
M/C Water Level
M/C Settings too High
M/C1 Sensor Fault
M/C2 Sensor Fault
Display Switch set to “8” (if lit....)
Od
O8
O9
99
TC Sensor
Reverse Change Temp
Frost or no Change ºC
No Communication
Indoor to Rem Con.
84
Th(X) Sensor Fault
ç
15
Refer to Multi Con
Preheat/Defrost Flash
ì
è
Ob
89
M/C Water Level
ID Codes too High
ID Codes set to Zero
ç
ç
1C
Refer to O/D
è
1C
Refer to O/D
è
14
1d
1F
18
Refer to O/D
Refer to O/D
Refer to O/D
Refer to O/D
è
è
è
è
14
1d
1F
18
Refer to O/D
Refer to O/D
Refer to O/D
Refer to O/D
è
è
è
è
21
Refer to O/D
è
21
Refer To O/D
è
î
- = LED Flashing
see Table 1
m = LED On
AUGUST 1997
Page 13
Display Switch set to “3” (if lit....)
LED1
ThD1 Sensor Fault
LED2
ThD2 Sensor Fault
LED3
ThS Sensor Fault
LED4
High Pressure - detected by pressure
sensor
LED5
Pressure Sensor Fault
LED6
Discharge Pipe >130ºC
LED7
Suction Pipe >40ºC
LED8
Low Pressure <3.5psig
SW01 Set to Off/Off
-mmm Low Inverter Voltage
m-mm High Inverter Current dc
mm-m High Inverter Current ac
ThE Sensor Fault
mmm-
Inv HP Trip, Comp Klixon
Phase Rotation, DOL HP Trip, O/Load,
Comp Klixon
TOSHIBA
6. Fault Code and Display Information
Display switch information
Multicontroller
Switch position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Information
System Communication
Fault Codes
Level of Demand
Oil Retrieval, Superheat, Defrost
Operating Mode
Restart Timer
Circuit Test (commissioning only)
PMV(A) Position
PMV(B) Position
PMV(C) Position
PMV(D) Position
ThA Sensor Data (Hex Code)
ThB Sensor Data (Hex Code)
ThC Sensor Data (Hex Code)
ThD Sensor Data (Hex Code)
ThX Sensor Data (Hex Code)
Outdoor Unit
Switch position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Information
System Communication
Status of Compressors
System Status (Mode, Defrost, PMV)
Fault Diagnostics (Outdoor Unit)
M/C1 Branches A & B Indoor Capacity Codes
M/C1 Branches C & D Indoor Capacity Codes
M/C2 Branches A & B Indoor Capacity Codes
M/C2 Branches C & D Indoor Capacity Codes
Fault Diagnostics (Multi Controller)
Circuit Test (commissioning only)
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
AUGUST 1997
Page 14
TOSHIBA
6. Fault Code and Display Information
Multi Controller Display Switch Information
Switch Indicates
Pos.
LD 1
_
|_|
|_|
0
Serial
1
Fault
Codes
Demand
2
3
_
|_|
|_|
|
From B
Branch
To B
Branch
Timer
cct test
_
|_|
|_
_|
_
|_|
|_|
_
|_|
|_|
_
|_
_|
|_|
To A
Branch
From A
Branch
From
Outdoor
_
|_|
|_|
_
|_|
|
|_|
_
|_|
|_|
|
From D
Branch
To D
Branch
_
|_|
|_
_|
_
|_|
|_|
_
|_|
|_|
_
|_
_|
|_|
To C
Branch
From C
Branch
To
Outdoor
For Details of Fault Codes see Page 13
Level of Cooling/Heating Demand (00-1F)
Oil Ret
brch B
Defrost
4
5
6
7
8
9
10
11
12
13
14
15
_
|_|
|
|_|
LD 2
Superheat
brchB
Superheat Oil Ret
brchA
brchA
Oil Ret
brch D
Superheat
brchD
Superheat Oil Ret
brchC
brchC
Displays “dF” during defrost operation
Operating Mode :Heating (H-), Cooling (-C), Stop (--), Defrost (J-)
Normal Display (OO), Restart Timer Displays (-1) During Count Down
Displays Branch Being Tested (A b C d)
Indicates Faulty Branch Connection After Circuit Test
PMVA
Displays Degree Of PMV Opening As A Hexadecimal Code :
(OO) = Closed , (FO) = Fully Open
PMVB
PMVC
PMVD
ThA
ThB
ThC
ThD
ThX
Displays Sensor Readings As A Hexadecimal Code :
40=0ºC ; 68=10ºC ; 90=20ºC ; b8=30ºC
The Hexadecimal codes can be interpreted using the following chart
Display
OO
1O
2O
3O
4O
5O
6O
7O
8O
9O
AO
bO
CO
dO
EO
FO
PMVAngle
Closed
16
32
48
64
80
96
112
128
144
160
176
192
208
224
240
Th-AbCdX
ºC
-8
-4
0
4
8
12
16
20
24
28
32
Display
OO
O1
O2
O3
O4
O5
O6
O7
O8
O9
OA
Ob
OC
Od
OE
OF
Level Of Demand
Hz
Display
0
0
0
3.9
6.9
10
13
16.2
19.3
22.4
25.5
28.6
31.7
34.8
37.9
41
1O
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1
1F
The above chart shows a sample of readings, other intermediate readings may be registered.
AUGUST 1997
Page 15
Hz
44.1
47.2
50.3
53.4
56.5
59.6
62.7
65.8
68.9
72
75.1
78.2
81.3
84.4
87.5
90
TOSHIBA
6. Fault Code and Display Information
Outdoor Unit Display Switch Information
The operating status of the outdoor unit and fault diagnosis can be made using both the display
selector switch (on the interface pcb) and the eight red light emitting diodes on the interface printed
circuit board.
a. Display switch set to position “0” shows communication around the system
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
Lit = Receiving serial signal from multi controller 1
Lit = Sending serial signal to multi controller 1
Lit = Receiving serial signal from multi controller 2
Lit = Sending serial signal to multi controller 2
Lit = Receiving serial signal from inverter printed circuit board
Lit = Sending serial signal to inverter printed circuit board
n/a
n/a
b. Display switch set to position “1” shows status of both compressors
Inverter Speed
S0
0 Hz
S3
30 Hz
S4
36 Hz
S5
42 Hz
S6
46 Hz
S7
53 Hz
S8
61 Hz
S9
69 Hz
SA
76 Hz
SB
84 Hz
SC
92 Hz
SD
103 Hz
SE
111 Hz
SF
122 Hz
LED 1
X
X
X
X
X
X
O
O
O
O
O
O
O
O
O = Lit
LED 2
X
X
O
O
O
O
X
X
X
X
O
O
O
O
LED 3
X
O
X
X
O
O
X
X
O
O
X
X
O
O
LED4
X
O
X
O
X
O
X
O
X
O
X
O
X
O
LED 5
LED 6
DOL compressor
On On = Run
Off Off = Stop
X = Off
c. Display switch set to position “2” shows the status of the system
AUGUST 1997
Page 16
LED 7
LED 8
Speed Limiting
Due To Protection
Circuits i.e.
High TD or Low TS
TOSHIBA
6. Fault Code and Display Information
Outdoor Unit Display Switch Information cont.
d. Display switch set to position “3” identifies a fault condition in the outdoor unit.
Details are in the fault code chart on page 13
e. Display switch set to positions “4, 5, 6 & 7” identifies the indoor unit capacity code for each
branch.
Pos. 4
Pos. 5
Pos. 6
Pos. 7
LED 1
LED 2
LED 3
LED4
Capacity code of unit on M/C 1 branch A
Capacity code of unit on M/C 1 branch C
Capacity code of unit on M/C 2 branch A
Capacity code of unit on M/C 2 branch C
O = Lit
X = Off
X
X
O
X
X
X
O
O
X
O
X
X
X
O
X
O
X
O
O
X
X
O
O
O
O
X
X
X
O
X
O
X
LED 5
LED 6
LED 7
LED 8
Capacity code of unit on M/C 1 branch B
Capacity code of unit on M/C 1 branch D
Capacity code of unit on M/C 2 branch B
Capacity code of unit on M/C 2 branch D
Indoor Model Number
Code No
103
2
132/133
3
453/160/161/162/163
4
200/202/203
5
713/260/261/262/263
6
1,003/360/361/362/363
1,253/460/461/462/463
8
10
f. Display switch set to position “8” identifies a fault condition in the multi controller.
Details are in the fault code chart on page 13
g. Display switch set to position “9” shows the status of the commissioning circuit test.
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
M/C 1
M/C 2
Branch A
Branch B
Branch C
Branch D
Branch A
Branch B
Branch C
Branch D
AUGUST 1997
Page 17
When an LED is lit it indicates that there is
a wiring or piping fault between the multi
controller and the relevant indoor unit.
TOSHIBA
7. Circuit Test Procedure
These systems have a feature which enables them to check that the wiring and piping connections are
aligned with each other. This is carried out by allowing refigerant flow to one indoor unit at a time
and monitoring that indoor unit’s coil sensor for a corresponding drop in temperature. Each indoor
unit is tested in turn and where two multi controllers are installed each multi controller is tested in
turn.
This test would normally be used at the commissioning stage.
Procedure for initialising the circuit test.
1.
2.
3.
4.
5.
6.
7.
8.
Turn the power off, and disconnect any T2s (optional) fitted.
Put the outdoor display switch to 9 and multi controller(s) display switch to 6.
Turn the power back on.
Set all the remote controllers to cool mode and 29ºC.
Press the on/off button to start the indoor units (fans will run).
Go to outdoor unit press switch J2 (above 8 x LEDs) for 3 sec .
The system is now self-testing (all 8 LEDs will be flashing rapidly).
The system will stop at the end of the test, indicated by the on/off lights flashing.
In the event of cross wiring/piping the system will indicate which units are faulty, see pages 15 & 17
AUGUST 1997
Page 18
TOSHIBA
8. Calculating The Additional Gas Charge
Main Pipes
0.19 kg/m
Branch Pipes
RAV-103 ; 0.030 kg/m
RAV-133 ; 0.030 kg/m
RAV-162 ; 0.030 kg/m
RAV-202 ; 0.030 kg/m
Sub Pipes
0.125 kg/m
RAV-262 ; 0.045 kg/m
RAV-362 ; 0.045 kg/m
RAV-462 ; 0.045 kg/m
Single Multi Controller
Main pipe run (minus 3m.)
Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
Two Multi Controllers
Main pipe run (minus 2m.)
Total sub pipe (minus 2m.)
M/C1 Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
M/C2 Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
x
0.190 kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
Total Additional Gas Charge
=
=
=
=
=
= _________________kg
x
0.190 kg/m
x
0.125 kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
Total Additional Gas Charge
=
=
=
=
=
=
=
=
=
=
= _________________kg
AUGUST 1997
Page 19
TOSHIBA
SERVICE MANUAL
AIR CONDITIONER
HEAT PUMP MULTI SPLIT (2-PIPE)
Outdoor Units
MAR - M81HTM8 - E
MAR - M101HTM8 - E
Multi Controllers
RBM - Y1032E - E
RBM - Y1042E - E
AUGUST 1997
Page 1
TOSHIBA
Contents
1. Specifications
Outdoor Unit
Multi Controller
2. Basic Permutations / Capabilities
3. Dimensional Views
Outdoor Unit
Multi Controller
4. Wiring Diagrams
Outdoor Unit
Multi Controller
5. Refrigeration Circuit
Outdoor Unit
Multi Controller
6. Display Information and Fault Codes
7. Circuit Test Procedure
8. Calculation for Additional Gas Charge
Note : The two pipe Super Multi systems are heat pump units and can
provide heating or cooling, where both modes are required simultaneously
heating mode takes priority.
AUGUST 1997
Page 2
TOSHIBA
1. Specifications
OUTDOOR UNITS
Model
Cooling Capacity
Heating Capacity
Power Supply
Power Consumption
Running Current
Start Current
Dimensions
Weight
Noise Level SPL
Min Temp. (ambient)
Gas Pipe (main)
(sub)
Liquid Pipe (main)
(sub)
Max.. Length Actual
Max.. Length Equiv.
Height Difference
Refrigerant Type
Std Refrigerant Weight
Compressor Type
Compressor Output
Fan Type
Fan Motor Consumption
Air Flow Rate
Colour
Multi Controllers
MAR-M81HTM8-E
MAR-M101HTM8-E
20.0 (22.4)
25.0 (28.0)
20.0 (25.0)
25.0 (31.5)
3ph,380/415v,50Hz
8.0 / 7.7
10.1 / 10.1
12.3 / 11.7
15.7 / 15.0
60
1,490
1,290
824
308
315
66
-5 / -10
1 1/8
3/4
5/8
1/2
100
120
50
20
R 22
15.6
18.6
Hermetically Sealed Twin Scroll
5.6
7.5
2 x Propeller Fan (two speed)
2 x 150
10,000
kW
kW
(C/H) kW
(C/H) Amps
Amps
Height (mm)
Width (mm)
Depth (mm)
kg
dB(A)
Cooling / Heating ºC
Inch
Inch
Inch
Inch
m
m
Outdoor Above (m)
Outdoor Below (m)
Kg
kW
W
m³/hr
Silky Grey (Munsell 6Y7.0/0.3)
3 - Way
4 - Way
RBM-Y1032E-E
RBM-Y1042E-E
Note: The capacity value in brackets is the maximum operating capacity
Cooling and Heating capacities are based on JIS B8615
Cooling capacity:
Room Temperature
27ºC DB
19.5ºC WB
Ambient Temperature
35ºC DB
Heating capacity:
Room Temperature
21ºC DB
Ambient Temperature
7ºC DB
6ºC WB
Usable outdoor temperature ranges
Cooling mode
-5ºC to +43ºC DB
Heating mode
-10ºC to +21ºC DB
Specifications are subject to change without prior notice.
AUGUST 1997
Page 3
TOSHIBA
1. Specifications
MULTI CONTROLLERS
Model
Number of Branches
Gas Pipe (Inlet)
Liquid Pipe (Inlet)
Branch Pipes (Gas)
Branch Pipes (Liquid)
Dimensions
Weight
Max.. Branch Length
Max.. Difference between
Branches
Max.. Vertical Separation
Where two M/C are used
Max.. Sub Pipe Length (each)
Max.. Difference between
Sub Pipes
Inch
Inch
Inch
Inch
Height (mm)
Width (mm)
Depth (mm)
kg
m
m
RBM-Y1032E-E
3
1 1/8
5/8
3/4 x 3
3/8 x 3
260
590
450
20
30
10
RBM-Y1042E-E
4
1 1/8
5/8
3/4 x 4
3/8 x 4
260
590
520
23
30
10
m
15
15
m
m
15
10
15
10
Specifications are subject to change without prior notice.
Pipe Size Conversion Chart
mm
inch
6.4
1/4
9.5
3/8
12.7
1/2
15.9
5/8
AUGUST 1997
Page 4
19
3/4
22.4
7/8
25.4
1
28.6
1.1/8
TOSHIBA
2. Basic Permutations of Indoor to Outdoor Units
The indoor units are given a code number according to their capacity rank - see below
Model Number
RAV103
RAV132/133
RAV453/160/1/2/3
RAV202/3
RAV713/260/1/2/3
RAV1003/360/1/2/3
RAV1253/460/1/2/3
Code Number
2
3
4
5
6
8
10
Multiple indoor units may be connected to one outdoor unit, providing the total indoor code does not
exceed the outdoor unit code number. The outdoor unit codes are listed below
Model
MAR-M81HTM8-E
MAR-M101HTM8-E
Max.. No. Indoor Units
8
8
Min Code
3
3
Max. Code
21
27
When connecting up to four single indoor units only one multi controller is required, if more single
indoor units are needed then two multi controllers must be used. When connecting a twin indoor
arrangement to one multi controller branch the capacity code will be the sum of both indoor unit
codes.
Example :
Model No.
RAV133TUH
RAV133TUH
RAV202KH(W)
RAV202KH(W)
Arrangement
Single
Twin
Single
Twin
Indoor Capacity Code Total Capacity Code
3
3
3
6
5
5
5
10
Total
24
The total capacity codes for the example above are within the maximum permitted for a 10hp
(MAR-F101HTM8-E) outdoor unit therefore the use of a twin arrangement is acceptable.
NOTE : The maximum duty from the system cannot exceed the maximum capacity of the outdoor
unit, it is possible to use indoor uits with a total capacity of 135% of the outdoor unit capacity.
AUGUST 1997
Page 5
TOSHIBA
CONSTRUCTION VIEWS
MAR-M81HTM8E-E
MAR-M101FHTM8E-E
98 mm
1182 mm
1290 mm
1100 mm
650 mm
790 mm
824 mm
90 mm
750 mm
610 mm
375 mm
65 mm
135 mm
120 mm
L
G
130 mm
160 mm
AUGUST 1997
Page 6
TOSHIBA
DIMENSIONAL DRAWINGS
RBM-Y1032E-E
300 mm
Oval holefor
hanging bolt
Slit for hanging bolt
15 mm
15 mm
560 mm
590 mm
90 mm
170 mm
170 mm
490 mm
85 mm
55 mm
Electric Parts Box
90 mm
90 mm
90 mm
90 mm
90 mm
500 mm
or more
50 mm
100 mm
or more
80 mm
250 mm
500 mm
or more
Refrigerant piping joint (Flare)
Liquid Side Ø 9.5
125 mm
450 mm
100 mm
Wiring Entrance
500 mm
or more
Note. Make an inspection opening at
the specified place. It is indispensable
for servicing.
Refrigerant piping joint (Flare)
Liquid Side Ø 15.9
Refrigerant piping joint (Flare)
Discharge Gas Side Ø 19
50 mm
80 mm
205 mm
Wiring Entrance Ø 36
Refrigerant piping joint (Brazed)
Suction Gas Side Ø 28.6
450 x 450
Inspection opening
Refrigerant piping joint (Flare)
Gas Side Ø 19
60 mm
AUGUST 1997
Page 7
TOSHIBA
DIMENSIONAL DRAWINGS
RBM-Y1042E-E
370 mm
Oval holefor
hanging bolt
Slit for hanging bolt
15 mm
560 mm
590 mm
90 mm
170 mm
85 mm
55 mm
90 mm
90 mm
90 mm
90 mm
90 mm
90 mm
Electric Parts Box
170 mm
490 mm
90 mm
500 mm
or more
50 mm
100 mm
or more
80 mm
250 mm
500 mm
or more
Refrigerant piping joint (Flare)
Liquid Side Ø 9.5
Wiring Entrance
125 mm
190 mm
520 mm
500 mm
or more
Note. Make an inspection opening at
the specified place. It is indispensable
for servicing.
Refrigerant piping joint (Flare)
Liquid Side Ø 15.9
Refrigerant piping joint (Flare)
Discharge Gas Side Ø 19
50 mm
80 mm
205 mm
Wiring Entrance Ø 36
Refrigerant piping joint (Brazed)
Suction Gas Side Ø 28.6
450 x 450
Inspection opening
Refrigerant piping joint (Flare)
Gas Side Ø 19
60 mm
AUGUST 1997
Page 8
TOSHIBA
4. Schematic Wiring Diagrams
Outdoor Unit
Reactor
Giant
Transistor
Electric Starter
Rectifier
Smoothing Circuit
2200λ F/400v x 2
47kΩ/20W x 2
(~)
+
12
(~)
Contactor
52C2
W
V
U +
Diode
Clipper
1ℜ
Noise
Filter
Diode
Clipper
Contactor
52C1
-
-
(~)
CD2
U V W
1234
CD2
3ℜ
Noise Filter
CM1
Capacitor
1λ F x 3
Fuses
20A x 3
Inverter
Compressor
123 123 123 1234567
CN24 CN23 CN22
CN25
1234567 1234
CN4
CN8
P01
CD1
P02
3
CN2 2
1
Gate Drive PCB
MCC - 1252
CN21
Reversing
Valve
ThE
1
2
3
20SF
123456789
3
2 CN121
1
Thermal Fuse
TRS
1
2
3
Crankcase
Heater
Inverter HP
Sw
63H1 Klixon
Inverter
49C1
1
DOL Klixon
49C2
2
123456789
1
2
3 CN6
4
5
6
7
2
123
CN5
CN9
CN1
Tr2
INVERTER CONTROL
PCB
MCC - 1251
CN2
1
DOL HP Sw
63H2
1
2
3
4
1
2 PJ5
3
Tr1
CM2
D.O.L.
Compressor
ThD1 ThD2 ThS
Pressure
Sensor
Display LED x 8
W
1ℜ
Noise
Filter
V
U
Contactor
52C3
P2
PJ6
Display
Switch
P1
PJ10
123
123
PJ1
WHI
PJ2
BLK
PJ3
BLU
INTERFACE CONTROL
PCB
MCC - 1211
PJ11
12345
Return
Lock
123
PJ12
1 2 3 4 5 6 7 8 9
12345
PJ16
PJ15
PJ7
123
12345
1 2
54321
PJ8
1 2 3 4
1 2 3 4
1 2
1 2 3 4 5 6
FM2
FM1
6
Fuses
2 x 7A
5
4
3
2
Surge
Absorber
1
Fuse 20A
RC2
1ℜ
Noise
Filter
1
2
7
8
9
10
11
RC1
12
1 2 3 4 5 6 7 8 9
CAPACITORS
2200λ F x 2
SV1
Surge
Absorber
L1
L2
L3
N
POWER SUPPLY
50Hz 3ℜ 380/415 v
1
2
M/C (1)
3
1
2
3
M/C (2)
SV2
SV3
Solenoid Valves
= 240 v ac Live (not permanent)
= Neutral (not permanent)
= Communication Signal
= Earth
= L1 phase 415ac
= L2 phase 415ac
= L3 phase 415ac
= dc high voltage live
= dc high voltage neutral
= 3Ø for Inv Compressor
= dc low voltage
= ac low voltage
= ac low voltage
AUGUST 1997
Page 9
Fan Motors
PMV1
Pulsed
Modulating
Valve
Low Pressure
Switch 63L
Note :The colours used in this diagram are not
representative of those on the actual producct,
they are intended to indicate the status of each
wire.
TOSHIBA
4. Schematic Wiring Diagrams
Multi Controllers
PMVA
PMVB
PMVC
ThA
PMVD
ThB
ThC
ThD
ThX
Transformer
5
4 3
2
1
5
4 3
2
1
PJ 7
PJ 6
5
4 3
2
1
5
PJ 8
4 3
2
1
3
PJ 9
2
1
3
PJ 1
Float
Switch
2
PJ 2
1
3
2
PJ 3
1
3
2
PJ 4
1
3
2
1
1
2
Sump
Heater
3
PJ 16
PJ 5
2
PJ 14
LD 1
LD 2
_
|_|
|_|
_
|_|
|_|
2
PJ 10
1
Capacity Code
Swiches
Display
Switch
1
2
PJ 13
1
5
4
PJ 12
Multi Controller P.C.
Board
MCC - 1210
TP 2
TP 1
Branch Branch Branch Branch
A
B
C
D
3
2
1
Microswitch
COM
NO NC
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
INDOOR
UNIT A
INDOOR
UNIT B
The colours used in this
diagram are not
representative of those on
the product, they are
intended to indicate the
status of each wire.
= 240v ac Live Wiring
= Neutral Wiring
= Serial Wiring
= Earth Wiring
= ac low voltage
= ac low voltage
INDOOR
UNIT C
1
1
2
2
3
3
1
1
2
2
OUTDOOR
UNIT
INDOOR
UNIT D
RBM - Y1032E - E does not have
PMVD, ThD, indoor unit D connections
or the capacity code switch for branch D.
AUGUST 1997
Page 10
3
3
TOSHIBA
5. Schematic Refrigeration Diagram
Outdoor Unit
INVERTER
H.P. SWITCH
ThE
COMPRESSOR
EXPANSION
VALVE
SERVICE
VALVE
PRESSURE
SENSOR
LOW
PRESSURE
SWITCH
ThD1
INVERTER
COMPRESSOR
DRIER
ThS
LIQUID
TANK
CHECK VALVE
HEAT
EXCHANGER
D.O.L.
COMPRESSOR
SV1
HIGH
PRESSURE
RELEASE
ThD2
4-WAY
VALVE
D.O.L.
H.P.SWITCH
SERVICE
VALVE
SV2
FOR GAS
BALANCE
STRAINER
SV4
FOR
COMP 2
START UP
PMV1
COOLING
BYPASS
ACCUMULATOR
Specification of Outdoor Unit Components
Model Number
Compressor
Fan Motor
H.P. Switch Inv.
H.P. Switch DOL
L.P. Switch
ThD1 & ThD2 Sensor
ThS & ThE
Four Way Valve
Crankcase Heater (240vac)
Type Number
Motor Type
Power Supply
Output
(kW)
Coil Resistance (Ω)
Type Number
Motor Type
Power Supply
Consumption
(W)
Current
(A)
No. Poles
Thermal Cut-out
P.S.I.G.
P.S.I.G.
P.S.I.G.
(kΩ)
(kΩ)
(W)
MAR-M81HTM8-E
MAR-M101HTM8-E
HV991CW-Y12
HV1201CW-Y12
Three Phase Induction
415/380 , 3-phase , 50Hz + Neutral
5.6
7.5
Inv.1.49 / DOL 2.51
STF-200-150C
Single Phase Induction
220 / 240 , single phase , 50Hz + Neutral
150
1.12 - 1.44
6
Trip 115ºC ✁ 5ºC
Break on Rise : Trip 425 , Reset 340
Make on Rise : Trip 425 , Reset 340
Break on Drop : Trip 3.5 , Reset 20
50 @ 25ºC , 17.9 @ 50ºC , 3.35 @ 100ºC
32.8 @ 0ºC , 10 @ 25ºC , 3.6 @ 50ºC
Energised for Heating
74
AUGUST 1997
Page 11
TOSHIBA
5. Schematic Refrigeration Diagram
Multi Controller
INDOOR UNIT
EXPANSION VALVE
BRANCH A
PMV(A)
STRAINER
CHECK VALVE
EXPANSION VALVE
PMV(B)
STRAINER
STRAINER
LIQUID PIPE
BRANCH B
CHECK VALVE
EXPANSION VALVE
PMV(C)
STRAINER
BRANCH C
CHECK VALVE
EXPANSION VALVE
PMV(D)
STRAINER
BRANCH D
STRAINER
CHECK VALVE
ThX
ThA
ThB
GAS PIPE
ThC
ThD
The schematic shows the layout for a four way multi controller (RBM-Y1042E-E), the three way
multi controller (RBM-Y1302E-E) is very similar however all components relating to branch D have
been removed.
Specification of Multi Controller Components
Model Number
ThA,B,C,D,X Sensor
Float Switch
Sump Heater (240vac)
Thermal Fuse
Heater Fuse
Transformer
(kΩ)
(W)
(ºC)
(Amps)
Primary / Secondary (v ac)
AUGUST 1997
Page 12
RBM-Y1032E-E
RBM-Y1042E-E
32.8 @ 0ºC , 10 @ 25ºC , 3.6 @ 50ºC
Break on Rise
50
65
Trips at 119
1
240 / 12
TOSHIBA
6. Fault Code and Display Information
Fault Codes
Before reading the fault codes do not turn the power off as doing so will wipe the diagnostic
memory. Caution must be taken when removing the access covers as high voltages are present.
Fault diagnosis is available at three locations within the air conditioning system :1. Remote Controller - press the check button
2. Multi Controller - rotate the display switch to position 1
3. Outdoor Unit - see following text
Remote Controller
Press Check
O4
O4
O4
Ob
OC
No Communication
Inverter to Interface
No Communication
Multi Con to Outdoor
No Communication
Indoor to Multi Con
I.D. Water Level
TA Sensor
Multi Controller
Switch Position 1
è
O4
è
O4
88
No Communication
Inverter to Interface
No Communication Multi
Con to Outdoor
Outdoor Unit
è
No Communication Inverter to Interface
80
81
82
83
No Communication
Initially M/C to OD
Th(A) Sensor Fault
Th(B) Sensor Fault
Th(C) Sensor Fault
Th(D) Sensor Fault
ç
ç
ç
ç
LED1
LED2
LED3
LED4
Th(A) Sensor Fault
Th(B) Sensor Fault
Th(C) Sensor Fault
Th(D) Sensor Fault
LED5
Th(X) Sensor Fault
LED6
LED7
LED8
M/C Water Level
M/C Settings too High
M/C1 Sensor Fault
M/C2 Sensor Fault
Display Switch set to “8” (if lit....)
Od
O8
O9
99
TC Sensor
Reverse Change Temp
Frost or no Change ºC
No Communication
Indoor to Rem Con.
84
Th(X) Sensor Fault
ç
15
Refer to Multi Con
Preheat/Defrost Flash
ì
è
Ob
89
M/C Water Level
ID Codes too High
ID Codes set to Zero
ç
ç
1C
Refer to O/D
è
1C
Refer to O/D
è
14
1d
1F
18
Refer to O/D
Refer to O/D
Refer to O/D
Refer to O/D
è
è
è
è
14
1d
1F
18
Refer to O/D
Refer to O/D
Refer to O/D
Refer to O/D
è
è
è
è
21
Refer to O/D
è
21
Refer To O/D
è
î
- = LED Flashing
see Table 1
m = LED On
AUGUST 1997
Page 13
Display Switch set to “3” (if lit....)
LED1
ThD1 Sensor Fault
LED2
ThD2 Sensor Fault
LED3
ThS Sensor Fault
LED4
High Pressure - detected by pressure
sensor
LED5
Pressure Sensor Fault
LED6
Discharge Pipe >130ºC
LED7
Suction Pipe >40ºC
LED8
Low Pressure <3.5psig
SW01 Set to Off/Off
-mmm Low Inverter Voltage
m-mm High Inverter Current dc
mm-m High Inverter Current ac
ThE Sensor Fault
mmm-
Inv HP Trip, Comp Klixon
Phase Rotation, DOL HP Trip, O/Load,
Comp Klixon
TOSHIBA
6. Fault Code and Display Information
Display switch information
Multicontroller
Switch position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Information
System Communication
Fault Codes
Level of Demand
Oil Retrieval, Superheat, Defrost
Operating Mode
Restart Timer
Circuit Test (commissioning only)
PMV(A) Position
PMV(B) Position
PMV(C) Position
PMV(D) Position
ThA Sensor Data (Hex Code)
ThB Sensor Data (Hex Code)
ThC Sensor Data (Hex Code)
ThD Sensor Data (Hex Code)
ThX Sensor Data (Hex Code)
Outdoor Unit
Switch position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Information
System Communication
Status of Compressors
System Status (Mode, Defrost, PMV)
Fault Diagnostics (Outdoor Unit)
M/C1 Branches A & B Indoor Capacity Codes
M/C1 Branches C & D Indoor Capacity Codes
M/C2 Branches A & B Indoor Capacity Codes
M/C2 Branches C & D Indoor Capacity Codes
Fault Diagnostics (Multi Controller)
Circuit Test (commissioning only)
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
AUGUST 1997
Page 14
TOSHIBA
6. Fault Code and Display Information
Multi Controller Display Switch Information
Switch Indicates
Pos.
LD 1
_
|_|
|_|
0
Serial
1
Fault
Codes
Demand
2
3
_
|_|
|_|
|
From B
Branch
To B
Branch
Timer
cct test
_
|_|
|_
_|
_
|_|
|_|
_
|_|
|_|
_
|_
_|
|_|
To A
Branch
From A
Branch
From
Outdoor
_
|_|
|_|
_
|_|
|
|_|
_
|_|
|_|
|
From D
Branch
To D
Branch
_
|_|
|_
_|
_
|_|
|_|
_
|_|
|_|
_
|_
_|
|_|
To C
Branch
From C
Branch
To
Outdoor
For Details of Fault Codes see Page 13
Level of Cooling/Heating Demand (00-1F)
Oil Ret
brch B
Defrost
4
5
6
7
8
9
10
11
12
13
14
15
_
|_|
|
|_|
LD 2
Superheat
brchB
Superheat Oil Ret
brchA
brchA
Oil Ret
brch D
Superheat
brchD
Superheat Oil Ret
brchC
brchC
Displays “dF” during defrost operation
Operating Mode :Heating (H-), Cooling (-C), Stop (--), Defrost (J-)
Normal Display (OO), Restart Timer Displays (-1) During Count Down
Displays Branch Being Tested (A b C d)
Indicates Faulty Branch Connection After Circuit Test
PMVA
Displays Degree Of PMV Opening As A Hexadecimal Code :
(OO) = Closed , (FO) = Fully Open
PMVB
PMVC
PMVD
ThA
ThB
ThC
ThD
ThX
Displays Sensor Readings As A Hexadecimal Code :
40=0ºC ; 68=10ºC ; 90=20ºC ; b8=30ºC
The Hexadecimal codes can be interpreted using the following chart
Display
OO
1O
2O
3O
4O
5O
6O
7O
8O
9O
AO
bO
CO
dO
EO
FO
PMVAngle
Closed
16
32
48
64
80
96
112
128
144
160
176
192
208
224
240
Th-AbCdX
ºC
-8
-4
0
4
8
12
16
20
24
28
32
Display
OO
O1
O2
O3
O4
O5
O6
O7
O8
O9
OA
Ob
OC
Od
OE
OF
Level Of Demand
Hz
Display
0
0
0
3.9
6.9
10
13
16.2
19.3
22.4
25.5
28.6
31.7
34.8
37.9
41
1O
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1
1F
The above chart shows a sample of readings, other intermediate readings may be registered.
AUGUST 1997
Page 15
Hz
44.1
47.2
50.3
53.4
56.5
59.6
62.7
65.8
68.9
72
75.1
78.2
81.3
84.4
87.5
90
TOSHIBA
6. Fault Code and Display Information
Outdoor Unit Display Switch Information
The operating status of the outdoor unit and fault diagnosis can be made using both the display
selector switch (on the interface pcb) and the eight red light emitting diodes on the interface printed
circuit board.
a. Display switch set to position “0” shows communication around the system
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
Lit = Receiving serial signal from multi controller 1
Lit = Sending serial signal to multi controller 1
Lit = Receiving serial signal from multi controller 2
Lit = Sending serial signal to multi controller 2
Lit = Receiving serial signal from inverter printed circuit board
Lit = Sending serial signal to inverter printed circuit board
n/a
n/a
b. Display switch set to position “1” shows status of both compressors
Inverter Speed
S0
0 Hz
S3
30 Hz
S4
36 Hz
S5
42 Hz
S6
46 Hz
S7
53 Hz
S8
61 Hz
S9
69 Hz
SA
76 Hz
SB
84 Hz
SC
92 Hz
SD
103 Hz
SE
111 Hz
SF
122 Hz
LED 1
X
X
X
X
X
X
O
O
O
O
O
O
O
O
O = Lit
LED 2
X
X
O
O
O
O
X
X
X
X
O
O
O
O
LED 3
X
O
X
X
O
O
X
X
O
O
X
X
O
O
LED4
X
O
X
O
X
O
X
O
X
O
X
O
X
O
LED 5
LED 6
DOL compressor
On On = Run
Off Off = Stop
X = Off
c. Display switch set to position “2” shows the status of the system
AUGUST 1997
Page 16
LED 7
LED 8
Speed Limiting
Due To Protection
Circuits i.e.
High TD or Low TS
TOSHIBA
6. Fault Code and Display Information
Outdoor Unit Display Switch Information cont.
d. Display switch set to position “3” identifies a fault condition in the outdoor unit.
Details are in the fault code chart on page 13
e. Display switch set to positions “4, 5, 6 & 7” identifies the indoor unit capacity code for each
branch.
Pos. 4
Pos. 5
Pos. 6
Pos. 7
LED 1
LED 2
LED 3
LED4
Capacity code of unit on M/C 1 branch A
Capacity code of unit on M/C 1 branch C
Capacity code of unit on M/C 2 branch A
Capacity code of unit on M/C 2 branch C
O = Lit
X = Off
X
X
O
X
X
X
O
O
X
O
X
X
X
O
X
O
X
O
O
X
X
O
O
O
O
X
X
X
O
X
O
X
LED 5
LED 6
LED 7
LED 8
Capacity code of unit on M/C 1 branch B
Capacity code of unit on M/C 1 branch D
Capacity code of unit on M/C 2 branch B
Capacity code of unit on M/C 2 branch D
Indoor Model Number
Code No
103
2
132/133
3
453/160/161/162/163
4
200/202/203
5
713/260/261/262/263
6
1,003/360/361/362/363
1,253/460/461/462/463
8
10
f. Display switch set to position “8” identifies a fault condition in the multi controller.
Details are in the fault code chart on page 13
g. Display switch set to position “9” shows the status of the commissioning circuit test.
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
M/C 1
M/C 2
Branch A
Branch B
Branch C
Branch D
Branch A
Branch B
Branch C
Branch D
AUGUST 1997
Page 17
When an LED is lit it indicates that there is
a wiring or piping fault between the multi
controller and the relevant indoor unit.
TOSHIBA
7. Circuit Test Procedure
These systems have a feature which enables them to check that the wiring and piping connections are
aligned with each other. This is carried out by allowing refigerant flow to one indoor unit at a time
and monitoring that indoor unit’s coil sensor for a corresponding drop in temperature. Each indoor
unit is tested in turn and where two multi controllers are installed each multi controller is tested in
turn.
This test would normally be used at the commissioning stage.
Procedure for initialising the circuit test.
1.
2.
3.
4.
5.
6.
7.
8.
Turn the power off, and disconnect any T2s (optional) fitted.
Put the outdoor display switch to 9 and multi controller(s) display switch to 6.
Turn the power back on.
Set all the remote controllers to cool mode and 29ºC.
Press the on/off button to start the indoor units (fans will run).
Go to outdoor unit press switch J2 (above 8 x LEDs) for 3 sec .
The system is now self-testing (all 8 LEDs will be flashing rapidly).
The system will stop at the end of the test, indicated by the on/off lights flashing.
In the event of cross wiring/piping the system will indicate which units are faulty, see pages 15 & 17
AUGUST 1997
Page 18
TOSHIBA
8. Calculating The Additional Gas Charge
Main Pipes
0.19 kg/m
Branch Pipes
RAV-103 ; 0.030 kg/m
RAV-133 ; 0.030 kg/m
RAV-162 ; 0.030 kg/m
RAV-202 ; 0.030 kg/m
Sub Pipes
0.125 kg/m
RAV-262 ; 0.045 kg/m
RAV-362 ; 0.045 kg/m
RAV-462 ; 0.045 kg/m
Single Multi Controller
Main pipe run (minus 3m.)
Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
Two Multi Controllers
Main pipe run (minus 2m.)
Total sub pipe (minus 2m.)
M/C1 Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
M/C2 Branch pipe A (minus 2m.)
Branch pipe B (minus 2m.)
Branch pipe C (minus 2m.)
Branch pipe D (minus 2m.)
x
0.190 kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
Total Additional Gas Charge
=
=
=
=
=
= _________________kg
x
0.190 kg/m
x
0.125 kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
x
see above kg/m
Total Additional Gas Charge
=
=
=
=
=
=
=
=
=
=
= _________________kg
AUGUST 1997
Page 19