Download ReFreeX user manual for H425V3

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RF
H425V3
User manual
doc H425V3
Contents
Contents
2
1 Parameter list
3
2 Parameter remarks
7
3 Alarm list
7
4 Slave alarm list
7
5 Button list
8
6 Led list
8
7 Soft command list
8
8 How to ...
8
9 Shortcut list
8
10 Led and push button location
9
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
page 2\9
doc H425V3
1
Parameter list
Rem. Parameter
M__
MU_
ML0
MLb
MLd
1
1
2
3
4
5
6
7
8
9
Md0
Md1
MH0
MLH
MLL
MHH
MHL
MU1
MU2
MU3
Mut
MM1
MM2
MM3
MMH
MMd
n__
nc_
ncH
ncr
ncU
ncd
n1H
n1L
n2H
n2L
n3H
n3L
n4H
n4L
b__
b1_
b1C
b1A
b2_
b2C
b2A
b3_
b3C
b3A
b4_
b4C
b4A
b5_
b5C
b5A
b6_
b6C
b6A
b7_
b7C
b7A
b8_
b8C
b8A
L__
LI_
L1H
L1d
L2H
L2d
L3H
L3d
L4H
L4d
Description
Minimum Maximum Default
Functions about compressor
Functions about pressure switches
suction low pressure regulation (similar to Danfoss RT1AL set point minus half of neutral
0.0
99.0
2.8
zone)
suction pressure regulation dead band (ML0 +/- MLb are the upper/lower limits)
0.0
99.0
0.5
suction pressure regulation differential (loading at ML0+MLb+MLd / unl at ML0-MLb0.0
99.0
0.2
MLd)
minimum HP-LP-difference to unload last compressor still running
0.0
99.0
2.0
minimum HP-LP-difference to leave all the compressors off
0.0
99.0
0.5
discharge (HP) pressure limit forcing the timed compressor unload
0.0
99.0
24.0
low pressure safety restart ( similar to Danfoss KP15 lp set point )
0.0
99.0
1.2
low pressure safety stop ( similar to Danfoss KP15 lp set point - differential )
0.0
99.0
0.2
high pressure safety stop ( similar to Danfoss KP15 hp set point )
0.0
99.0
28.0
high pressure safety restart ( similar to Danfoss KP15 hp set point - differential )
0.0
99.0
24.0
minimum oil differential pressure of compressor nr. 1
0.0
99.0
1.0
minimum oil differential pressure of compressor nr. 2
0.0
99.0
1.0
minimum oil differential pressure of compressor nr. 3
0.0
99.0
1.0
minimum oil receiver temperature before opening the oil solenoid
-55.0
145.0
25.0
usage of mc nr. 1 output: 0=off / 1=on / 2=auto / 3=slave no / 4=slave nc / 5=kriwan
0
5
2
usage of mc nr. 2 output: 0=off / 1=on / 2=auto / 3=slave no / 4=slave nc / 5=kriwan
0
5
2
usage of mc nr. 3 output: 0=off / 1=on / 2=auto / 3=slave no / 4=slave nc / 5=kriwan
0
5
2
enable external load override on INP-4
oFF
_on
oFF
external load override delay
0 194 4:20:15 1:00:00
Functions about fans
Functions about condenser fans
enable condenser fans when compressor is off and discharge pressure is over maximum
oFF
_on
_on
enable condenser fans speed regulation
oFF
_on
_on
fan minimum speed
0
255
40
minimum HP-LP-difference to keep on fans
0.0
99.0
2.0
fan 1 start pressure ( similar to Danfoss KP5 set point ) - active just when ncr is oFF
0.0
99.0
6.0
fan 1 stop pressure ( similar to Danfoss KP5 set point - differential )
0.0
99.0
2.0
fan 2 start pressure
0.0
99.0
7.0
fan 2 stop pressure
0.0
99.0
5.0
fan 3 start pressure
0.0
99.0
8.0
fan 3 stop pressure
0.0
99.0
6.0
fan 4 start pressure
0.0
99.0
9.0
fan 4 stop pressure
0.0
99.0
7.0
Functions about probe calibration
Probe nr. 1
oil receiver temperature
-99.0
99.0
0.0
enable probe
oFF
_on
_on
Probe nr. 2
discharge temperature
-99.0
99.0
0.0
enable probe
oFF
_on
_on
Probe nr. 3
suction temperature
-99.0
99.0
0.0
enable probe
oFF
_on
_on
Probe nr. 4
mc1 oil pressure
-99.0
99.0
0.0
enable probe
oFF
_on
_on
Probe nr. 5
mc2 oil pressure
-99.0
99.0
0.0
enable probe
oFF
_on
_on
Probe nr. 6
mc3 oil pressure
-99.0
99.0
0.0
enable probe
oFF
_on
_on
Probe nr. 7
high pressure (HP)
-99.0
99.0
0.0
enable probe
oFF
_on
_on
Probe nr. 8
low pressure (LP)
-99.0
99.0
0.0
enable probe
oFF
_on
_on
Functions about alarm and stand-by
Other alarm inputs
enable mc1 alarm
oFF
_on
_on
mc1 alarm delay
0 194 4:20:15 30:00
enable mc2 alarm
oFF
_on
_on
mc2 alarm delay
0 194 4:20:15 30:00
enable mc3 alarm
oFF
_on
_on
mc3 alarm delay
0 194 4:20:15 30:00
enable external override alarm
oFF
_on
_on
override alarm delay
0 194 4:20:15 1:00:00
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
Unit
(gauge) bar
bar
bar
bar
bar
(gauge) bar
(gauge) bar
(gauge) bar
(gauge) bar
(gauge) bar
bar
bar
bar
◦C
/
/
/
/
dd hh:mm:ss
/
/
/
(gauge)
(gauge)
(gauge)
(gauge)
(gauge)
(gauge)
(gauge)
(gauge)
(gauge)
bar
bar
bar
bar
bar
bar
bar
bar
bar
K
/
K
/
K
/
bar
/
bar
/
bar
/
bar
/
bar
/
/
dd
/
dd
/
dd
/
dd
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
page 3\9
doc H425V3
Rem. Parameter
L5H
L5d
Lo_
10
Loo
d__
dF_
dF4
dF5
dF6
dS4
dS5
dS6
F__
FP_
FPP
FPM
FPd
FM_
FM0
FMb
FMd
FF_
FF4
FF5
FF6
FS4
FS5
FS6
H__
HP_
HPP
HPM
HPd
HPE
H1_
H1H
H1L
H2H
H2L
H3H
H3L
H4H
H4L
HA_
A1H
A1L
A2H
A2L
A3H
A3L
A4H
A4L
HS_
HS0
P__
Pd_
PdM
PdS
Pb_
PbH
Pbd
Pbb
PbO
Pb1
Pb2
PPM
P2H
P2M
P2d
P3H
P3M
P3d
PO_
11
PO3
Description
Minimum Maximum Default Unit
enable digital input 5 alarm (compressor phase monitor / thermal overload relay)
oFF
_on
_on /
digital input 5 alarm delay
0 194 4:20:15
1 dd hh:mm:ss
On / stand-by status
actual status: stand-by or on
oFF
_on
oFF /
Functions about delays
Delay from previous stop
mc1 start delay
0 194 4:20:15
5:00 dd hh:mm:ss
mc2 start delay
0 194 4:20:15 10:00 dd hh:mm:ss
mc3 start delay
0 194 4:20:15 15:00 dd hh:mm:ss
mc1 stop delay
0 194 4:20:15
45 dd hh:mm:ss
mc2 stop delay
0 194 4:20:15
30 dd hh:mm:ss
mc3 stop delay
0 194 4:20:15
15 dd hh:mm:ss
Functions about cooling capacity boost
Functions about boost preference
boost mode: 0=off / 1=on / 2=auto
0
255
2 /
boost mode when not enough info is received: 0=off / 1=on
0
255
1 /
delay before establishing that not enough info is received
0 194 4:20:15
5:00 dd hh:mm:ss
Functions about pressure switches in boost mode
suction low pressure regulation
0.0
99.0
1.8 (gauge) bar
suction pressure regulation dead band
0.0
99.0
0.5 bar
suction pressure regulation differential
0.0
99.0
0.2 bar
Delays in boost mode
mc1 start delay
0 194 4:20:15
1:00 dd hh:mm:ss
mc2 start delay
0 194 4:20:15
5:00 dd hh:mm:ss
mc3 start delay
0 194 4:20:15 10:00 dd hh:mm:ss
mc1 stop delay
0 194 4:20:15
5:00 dd hh:mm:ss
mc2 stop delay
0 194 4:20:15
1:00 dd hh:mm:ss
mc3 stop delay
0 194 4:20:15
30 dd hh:mm:ss
Functions about hot gas mode
Functions about hot gas preference
hot gas mode: 0=off / 1=on / 2=all / 3=auto
0
255
3 /
hot gas mode when not enough info is received: 0=off / 1=on / 2=all
0
255
1 /
delay to enter hot gas mode = on
0 194 4:20:15
5:00 dd hh:mm:ss
delay to enter hot gas mode = all
0 194 4:20:15
1:00 dd hh:mm:ss
Functions about condenser fans when hot gas mode = on
fan 1 start pressure
0.0
99.0
12.0 (gauge) bar
fan 1 stop pressure
0.0
99.0
6.0 (gauge) bar
fan 2 start pressure
0.0
99.0
13.0 (gauge) bar
fan 2 stop pressure
0.0
99.0
11.0 (gauge) bar
fan 3 start pressure
0.0
99.0
14.0 (gauge) bar
fan 3 stop pressure
0.0
99.0
12.0 (gauge) bar
fan 4 start pressure
0.0
99.0
15.0 (gauge) bar
fan 4 stop pressure
0.0
99.0
13.0 (gauge) bar
Functions about condenser fans when hot gas mode = all
fan 1 start pressure
0.0
99.0
26.0 (gauge) bar
fan 1 stop pressure
0.0
99.0
20.0 (gauge) bar
fan 2 start pressure
0.0
99.0
25.0 (gauge) bar
fan 2 stop pressure
0.0
99.0
23.0 (gauge) bar
fan 3 start pressure
0.0
99.0
26.0 (gauge) bar
fan 3 stop pressure
0.0
99.0
24.0 (gauge) bar
fan 4 start pressure
0.0
99.0
27.0 (gauge) bar
fan 4 stop pressure
0.0
99.0
25.0 (gauge) bar
Delays in hot gas mode
minimum stop delay for the last mc still running
0 194 4:20:15
2:00 dd hh:mm:ss
Functions about master preferences
Functions about network address
master address for global network communication
0
254
1 /
number of slaves connected to this master
1
2
2 /
Suction pressure broadcast
enable suction pressure periodic broadcast over the PC net
oFF
_on
_on /
delay between pressure broadcast messages
0 194 4:20:15
30 dd hh:mm:ss
delay between latest received message and broadcasting start
0 194 4:20:15
2:00 dd hh:mm:ss
specify originating address in the pressure message
oFF
_on
_on /
broadcast a packet with low pressure and without additional info
oFF
_on
oFF /
broadcast a packet with low pressure and additional info
oFF
_on
_on /
become network master after Pbb delay
oFF
_on
oFF /
poll periodically second central unit for pressure broadcast
oFF
_on
oFF /
master address of second central unit
0
254
2 /
delay between pressure broadcast messages of second central unit
0 194 4:20:15
30 dd hh:mm:ss
poll periodically third central unit for pressure broadcast
oFF
_on
oFF /
master address of third central unit
0
254
3 /
delay between pressure broadcast messages of third central unit
0 194 4:20:15
30 dd hh:mm:ss
Output assignment
assign out-3 relay to: 0=condenser fan / 1=oil receiver solenoid / 2=alarm / 3=oil
0
3
0 /
heater / 4=subcooler / 5=off
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
page 4\9
doc H425V3
Rem. Parameter
I__
IA_
IA1
IA2
IA3
IA4
IA5
IA6
IA7
IA8
Id_
Id1
Id2
Id3
Id4
Id5
OA_
OA1
OA2
Od_
12
Od1
Od2
Od3
Od4
Od5
Od6
Od7
Od8
Od9
Od0
OS_
OL0
OLb
OLd
O1H
O1L
O2H
O2L
O3H
O3L
O4H
O4L
LLA
OM0
OM1
OM2
OML
OMM
OMH
OMi
1
OMF
OSF
OSH
OHd
OHE
OFM
OFd
ObH
Obb
OF4
OF5
OF6
OF0
OC0
OC1
OCH
OCt
OCF
E__
EY_
EYY
EYr
E0_
E0d
Description
Functions about input-output and machine state (read only)
Analog inputs
oil receiver temperature
discharge temperature
suction temperature
oil pressure of mc1
oil pressure of mc2
oil pressure of mc3
high pressure (HP)
low pressure (LP)
Digital input
mc1 hardware safety
mc2 hardware safety
mc3 hardware safety
external override
phase software safety
Analog output
condenser
humidity - 4...20 mA
Digital output
condenser fan 2
condenser fan 3
condenser fan 4
compressor 1
compressor 2
compressor 3
oil receiver solenoid - eventually connected to OUT-3
alarm - eventually connected to OUT-3
mc1 oil heater - eventually connected to OUT-3
digital output 3
Machine status
actual set point
actual dead band
actual differential
fan 1 start pressure
fan 1 stop pressure
fan 2 start pressure
fan 2 stop pressure
fan 3 start pressure
fan 3 stop pressure
fan 4 start pressure
fan 4 stop pressure
actual alarm - read only (0 means no alarm)
suction low pressure regulation: 0=unload/1=neutral/2=load
number of running compressors
number of available compressors
low pressure is insufficient to load the first compressor
low pressure is insufficient and is going to unload the compressors
high pressure is excessive to load further compressors
high pressure is excessive and is going to unload the compressors
compressor forcing for extreme winter conditions
boost mode
hot gas mode
timer to enter hot gas mode = on (in countdown-mode)
timer to enter hot gas mode = all (in countdown-mode)
not enough info is received
timer for not enough info (in countdown-mode)
autonomous pressure broadcast over the PC net
autonomous broadcast timer (in countdown-mode)
mc1 timer (in countdown-mode)
mc2 timer (in countdown-mode)
mc3 timer (in countdown-mode)
timer of first scheduled compressor (in countdown-mode)
number of active rooms connected to this central unit, and not lost
number of rooms requiring liquid refrigerant
number of rooms requiring hot gas
number of rooms in turbo mode
number of rooms in boost mode
Functions about slave preferences
Functions about display
input to show on display: 1=IA1 / 2=IA2 ...
enable display rotation: 0=off / 1=all / 2=selected
Functions about display rotation, when EYr=1
duration of label display during rotation
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
Minimum
Maximum Default Unit
-55.0
-55.0
-55.0
0.0
0.0
0.0
0.0
0.0
145.0
145.0
145.0
30.0
30.0
30.0
30.0
30.0
-55.0
-55.0
-55.0
0.0
0.0
0.0
0.0
0.0
oFF
oFF
oFF
oFF
oFF
_on
_on
_on
_on
_on
oFF
oFF
oFF
oFF
oFF
0
0
255
255
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
_on
_on
_on
_on
_on
_on
_on
_on
_on
_on
0.0
-999.0
-999.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0
0
0
0
oFF
oFF
oFF
oFF
oFF
0
0
0
0
oFF
0
oFF
0
0
0
0
0
0
0
0
0
0
194
194
194
194
194
194
194
194
◦C
◦C
◦C
(gauge)
(gauge)
(gauge)
(gauge)
(gauge)
bar
bar
bar
bar
bar
/
/
/
/
/
0 /
0 /
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
/
/
/
/
/
/
/
/
/
/
999.0
0.0 (gauge) bar
999.0 -999.0 bar
999.0 -999.0 bar
999.0
0.0 (gauge) bar
999.0
0.0 (gauge) bar
999.0
0.0 (gauge) bar
999.0
0.0 (gauge) bar
999.0
0.0 (gauge) bar
999.0
0.0 (gauge) bar
999.0
0.0 (gauge) bar
999.0
0.0 (gauge) bar
255
0 /
255
0 /
255
0 /
255
0 /
_on
oFF /
_on
oFF /
_on
oFF /
_on
oFF /
_on
oFF /
255
0 /
255
0 /
4:20:15
0 dd hh:mm:ss
4:20:15
0 dd hh:mm:ss
_on
oFF /
4:20:15
0 dd hh:mm:ss
_on
oFF /
4:20:15
0 dd hh:mm:ss
4:20:15
0 dd hh:mm:ss
4:20:15
0 dd hh:mm:ss
4:20:15
0 dd hh:mm:ss
4:20:15
0 dd hh:mm:ss
255
0 /
255
0 /
255
0 /
255
0 /
255
0 /
0
0
255
2
8 /
0 /
0
255
1 /
page 5\9
doc H425V3
Rem. Parameter
E0E
E1_
E1d
E1t
E1E
E2_
E2d
E2t
E2E
E3_
E3d
E3t
E3E
E4_
E4d
E4t
E4E
E5_
E5d
E5t
E5E
E6_
E6d
E6t
E6E
E7_
E7d
E7t
E7E
E8_
E8d
E8t
E8E
E9_
E9d
E9t
E9E
F0_
F0d
F0t
F0E
F1_
F1d
F1t
F1E
F2_
F2d
F2t
F2E
F3_
F3d
F3t
F3E
F4_
F4d
F4t
F4E
F5_
F5d
F5t
F5E
F6_
F6d
F6t
F6E
F7_
F7d
F7t
F7E
F8_
F8d
F8t
F8E
F9_
Description
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2
Minimum
0
Maximum Default Unit
255
2 /
(repeated for each parameter)
0
000
0
255
yyy
255
1 /
ot= /
0 /
0
000
0
255
yyy
255
1 /
di= /
0 /
0
000
0
255
yyy
255
1 /
SU= /
0 /
0
000
0
255
yyy
255
1 /
o1= /
0 /
0
000
0
255
yyy
255
1 /
o2= /
0 /
0
000
0
255
yyy
255
1 /
o3= /
0 /
0
000
0
255
yyy
255
1 /
HP= /
4 /
0
000
0
255
yyy
255
1 /
LP= /
4 /
0
000
0
255
yyy
255
1 /
L0= /
4 /
0
000
0
255
yyy
255
1 /
Lb= /
0 /
0
000
0
255
yyy
255
1 /
Ld= /
0 /
0
000
0
255
yyy
255
1 /
1H= /
0 /
0
000
0
255
yyy
255
1 /
1L= /
0 /
0
000
0
255
yyy
255
1 /
2H= /
0 /
0
000
0
255
yyy
255
1 /
2L= /
0 /
0
000
0
255
yyy
255
1 /
3H= /
0 /
0
000
0
255
yyy
255
1 /
3L= /
0 /
0
000
0
255
yyy
255
1 /
4H= /
0 /
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
(repeated for each parameter)
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Rem. Parameter
F9d
F9t
F9E
Eb_
EbH
EF_
EFF
2
5
6
7
8
9
10
11
12
Maximum Default Unit
255
1 /
yyy
4L= /
255
0 /
0
1
1 /
0
1
0 /
Remark
To ensure operation in extreme winter conditions, respect to normal ones, compressors may be switched on sooner, and off later.
When MLH<MLL,there is a delay of 10*(MLL-MLH) seconds on lp switch. Eventual pumpdown restart is over MLH+1 bar.
Fixed time 120 s and manual reset.
In H425V3, starting from revision 03, when MU1 and MU3 are 5.0 and b4A and b6A are oFF, use 5NTC controller for compressors without oil
pump; connect HP probe on AN-6 and LP on AN-7.
Caution! Selection by manual override forces compressor to run whatever the high and low pressure; no safety is left except hardware ones. In
slave mode the output is used for partialization. In kriwan mode output is off for reset during stand-by.
Caution! The external override drives the compressors ignoring high and low pressure; no safety is left except hardware ones. It is recommended
to close this contact passing through both contacts of a low pressure and high pressure switch like a kp15. The closed contact is interpreted
as "load" while the open contact is neutral. The delays dF4 through dF6 are respected.
After the delay elapsed, the override forces a load. Automatic reset.
When speed regulation is off the fan is operated on-off.
Caution! Speed regulation can cause fan fault or electronic board fault. Low and average minimum speed can increase the risk.
Passing from stand-by to on and at power on, there is a 5 second delay spent in a virtual stand-by.
In H425V3, starting from revision 02, when PO3 is 4, OUT-3 drives the subcooler liquid solenoid; AN-1 input is the subcooler suction
temperature; Mut is the wanted overheating, where 8.0 ◦ C means 8.0 ◦ C; maximum overheating is fixed at 99.0 ◦ C; minimum overheating is
fixed at 6.0 ◦ C; n4H is the refrigerant type, where 0.1 bar means R404A; n4L is the cycle period, where 0.8 bar means 8 s; H4H is the initial
on-time, where 0.5 bar means 5 s; H4L is the adaptation speed, where 0.8 bar means 8. To turn off the subcooler solenoid, set PO3 to 5. The
subcooler is enabled just when all of the available motorcompressors are on.
The minus sign on display ("-") signals that output is going to start after a delay.
Alarm list
Display
A01
A02
A03
A04
A05
A06
A07
A08
A09
A10
A11
A12
A13
A14
4
Minimum
0
000
0
Parameter remarks
Nr.
1
2
3
4
3
Description
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about buzzer
enable buzzer
Functions about slave default
reload slave default parameters from EEPROM, at next restart
Alarm
mc 1 alarm
mc 2 alarm
mc 3 alarm
external override
mc phase
mc 1 oil pressure
mc 2 oil pressure
mc 3 oil pressure
EEPROM invalid
EEPROM read start
EEPROM read end
EEPROM write start
EEPROM write end
EEPROM write max
Pressure switch, thermistors, or any other compressor safety device has disconnected.
Pressure switch, thermistors, or any other compressor safety device has disconnected.
Pressure switch, thermistors, or any other compressor safety device has disconnected.
The external override contact is driving the controller.
Compressor overload/thermal relay disconnected, or missing mains phase - manual reset.
Oil differential pressure remained under minimum value for 120 seconds - manual reset.
Oil differential pressure remained under minimum value for 120 seconds - manual reset.
Oil differential pressure remained under minimum value for 120 seconds - manual reset.
EEPROM invalid.
EEPROM read start failure
EEPROM read end failure
EEPROM write start failure.
EEPROM write end failure.
EEPROM failure - reached the maximum number of writing attempts.
Slave alarm list
Display
A96
A97
A98
A99
Alarm
slave EEPROM
out of range
no link
lost link
Failed write operation onto the slave EEPROM.
The slave address EdS might be out of the master range, the latter going from 1 to PdS.
The slave does not receive any message from the master.
The slave lost the communication with the master.
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5
Push
B1
B2
B3
B4
B5
B6
6
Led
L1
L2
L3
L4
L5
L6
L7
7
Button list
button
esc - silence
up
on / stand-by
left
down
right - menu - set
Led list
compressor 1
compressor 2
compressor 3
condenser fan
condenser fan
condenser fan
condenser fan
1
2
3
4
Function
On during
On during
On during
On during
On during
On during
On during
Function
Skip compressor delay.
How to ...
How to ...
Switch between on and stand-by.
Program the menu.
Show or change pressure set.
9
compressor run - blinking slowly during activation and deactivation delay.
compressor run - blinking slowly during activation and deactivation delay.
compressor run - blinking slowly during activation and deactivation delay.
condenser run.
condenser run.
condenser run.
condenser run.
Soft command list
Soft command
4 skip mc delay
8
Function
Exit without saving from any menu - alarm buzzer silence.
Up navigation in the menu.
Toggle between on and stand-by.
Left navigation in the menu.
Down navigation in the menu.
Right navigation in the menu - display and modify the set point - enter menu.
Function
Keep pressed B3 button, to activate and deactivate stand-by. In stand-by every output is, leds from L1 to L7
blink, timers continue to count.
Keep pressed B6 to enter the menu. Navigate up and down with B2 and B5. Select the submenu by B6.
Change the parameter by B2 and B5, press B6 to confirm, or B4 to go back without saving. The changes
will have effect after the exit from programming pressing B4 repeatedly. Press B1 to exit immediately without
saving any parameter.
Press shortly B6 - the display shows the current set point - change it by B2 and B5, and confirm it by B6. As
alternative, enter the menu program as explained above, modify the parameter ML0, then confirm it.
Shortcut list
Buttons to press
/
Shortcut description - keep pressed 5 seconds
This instrument has no further shortcuts.
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Led and push button location
ReFreeX
L1 L2 L3 L4 L5 L6
B1
B2
B3
B4
B5
B6
L7
Set
doc A112Y1
10
80% refrigerant reduction – full digital control – reduced winter consumption
80% di riduzione del refrigerante – controllo digitale completo – consumi invernali ridotti
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