Download ReFreeX user manual for H422V9

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ree
RF
H422V9
User manual
doc H422V9
Contents
Contents
2
1 Parameter list
3
2 Parameter remarks
8
3 Alarm list
8
4 Slave alarm list
9
5 Button list
9
6 Led list
9
7 Soft command list
9
8 How to ...
10
9 Shortcut list
10
10 Led and push button location
10
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
page 2\10
doc H422V9
1
Parameter list
Rem. Parameter
S__
St_
_t0
_tb
_td
_tH
_tL
_i0
_ib
_id
_iH
_iL
SA_
SAH
SA0
SAd
SAP
SAh
SAF
SAo
Fd_
1
Fd0
Fdd
Fdg
2
FdE
FdF
3
FdP
Fd1
Fd2
4
Fd3
FdY
FF_
FFh
FFd
5
FFo
FP_
6
FPt
7
FPF
FPr
FPH
FPI
Ft_
8
Ftt
FtF
FtP
M__
MU_
MLH
MLL
MLd
MLU
MHH
MHL
9
MUO
10
MUU
MUM
MUL
MUd
MUb
H__
HP_
HPP
HPF
HPd
U__
UP_
11
UPP
UPH
Description
Minimum
Functions about storage
Functions about storage temperature
storage room temperature
-55.0
dead band
0.0
differential
0.0
maximum set point of temperature from slave keyboard
-55.0
minimum set point of temperature from slave keyboard
-55.0
storage room humidity
0.0
dead band
0.0
differential
0.0
maximum set point of humidity from slave keyboard
0.0
minimum set point of humidity from slave keyboard
0.0
Functions about air renew during storage
enable air renew during storage
oFF
immediate delay before first air renew
0
on-time duration in the air renew cycle
0
period of air renew cycle
0
enable forced air renew by keyboard short cut
oFF
forced air renew duration
0
start / stop forced air renew
oFF
Functions about defrost duration and timing
immediate delay before next defrost
0
on-time duration of the defrost
0
dripping time after defrost
0
maximum evaporator fan activation delay after the defrost
0
minimum evaporator fan activation delay after the defrost
0
overall period of the defrost
0
evaporator fan pulse duration (0.001 s units - select 0 for no pulse during defrost)
0
evaporator fan pulse period
0
defrost delay at power on
0
temperature display timeout after end of defrost - resets IA1=OS4=OS5
0
Functions about forced defrost
enable forced defrost by keyboard short cut
oFF
forced defrost duration
0
start immediate forced defrost
oFF
Functions about defrost preference
defrost type: 0=none / 1=pause / 2=air / 3=electric / 4=hot gas / 5=heat pump
0
/ 6=heat pump by hp
forced defrost type: 0=none / 1=pause / 2=air / 3=electric / 4=hot gas / 5=heat
0
pump / 6=heat pump by hp
save defrost status into the real time clock
oFF
activate defrost output during defrost
oFF
activate defrost output during forced defrost
oFF
Functions about defrost temperature
defrost stop temperature
-55.0
forced defrost stop temperature
-55.0
evaporator fan activation temperature after the defrost
-55.0
Functions about compressor
Functions about pressure switches
low pressure safety restart ( similar to Danfoss KP15 lp set point )
0.0
low pressure safety stop ( similar to Danfoss KP15 lp set point - differential )
0.0
delay of low pressure safety stop
0
low pressure stop during pump down (intentional stop)
0.0
high pressure safety stop ( similar to Danfoss KP15 hp set point )
0.0
high pressure safety restart ( similar to Danfoss KP15 hp set point - differential )
0.0
minimum oil differential pressure
0.0
enable pump down
oFF
maximum pump down duration
0
low pressure forcing mc restart (repump down)
0.0
minimum delay for mc restarts (repump down)
0
do pump down before going to stand-by
oFF
Heating
Heating preference
heating method: 0=none / 1=electric / 2=hot gas / 3=heat pump / 4=intern heat
0
pump / 5=ihp2
heating source: 0=dedicated heating / 1=defrost / 2=light
0
heating delay
0
Dehumidification
Dehumidification preference
dehumidification type: 0=none / 1=force refr / 2=force heat / 3=alternate /
0
4=outer
enable humidification
oFF
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
Maximum
Default Unit
2.0
0.0
0.2
45.0
-55.0
85.0
0.0
5.0
100.0
0.0
◦C
_on
oFF
194 4:20:15
0
194 4:20:15
30:00
194 4:20:15 12:00:00
_on
_on
194 4:20:15
30:00
_on
oFF
/
dd
dd
dd
/
dd
/
194
194
194
194
194
194
dd
dd
dd
dd
dd
dd
/
dd
dd
dd
145.0
50.0
50.0
145.0
145.0
100.0
50.0
50.0
100.0
100.0
4:20:15
4:20:15
4:20:15
4:20:15
4:20:15
4:20:15
255
194 4:20:15
194 4:20:15
194 4:20:15
_on
194 4:20:15
_on
0
30:00
2:00
15:00
5:00
4:00:00
0
1:00
4:00:00
20:00
K
K
◦C
◦C
%
%
%
%
%
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
_on /
30:00 dd hh:mm:ss
oFF /
255
2 /
255
2 /
_on
_on
_on
oFF /
_on /
_on /
146.0
146.0
146.0
6.0
25.0
-20.0
◦C
99.0
99.0
194 4:20:15
99.0
99.0
99.0
30.0
_on
194 4:20:15
99.0
194 4:20:15
_on
0.4
0.2
10
0.3
28.0
24.0
2.0
_on
1:00
1.0
15:00
oFF
(gauge) bar
(gauge) bar
dd hh:mm:ss
(gauge) bar
(gauge) bar
(gauge) bar
(gauge) bar
/
dd hh:mm:ss
(gauge) bar
dd hh:mm:ss
/
255
2
194 4:20:15
◦C
◦C
0 /
0 /
3:00 dd hh:mm:ss
255
0 /
_on
oFF /
page 3\10
doc H422V9
Rem. Parameter
n__
nc_
ncH
12
ncr
13
ncU
ncd
n1H
14
n1L
nE_
nEH
nEM
nE0
nEE
nEt
nEd
c__
cP_
cPH
cPF
cPd
cI_
cIH
15
cIo
cId
v__
vP_
16
vPH
vPP
17
vPd
vPC
vPS
vP0
vt_
18
vtt
19
vtH
vtI
20
vtL
vtF
vtP
vtU
vtv
vd_
21
vd1
22
vd2
23
vdd
vF_
24
vFP
vFd
vFH
vFt
vb_
vbP
vbd
25
vbH
vbt
b__
b1_
b1C
b1A
b2_
b2C
b2A
b3_
b3C
b3A
b4_
b4C
b4A
b5_
b5C
b5A
b6_
b6C
b6A
Description
Minimum
Functions about fans
Functions about condenser fans
enable condenser fans when compressor is off and discharge pressure is over maximum
oFF
enable condenser fans speed regulation
oFF
fan minimum speed
0
minimum HP-LP-difference to keep on fans
0.0
fan 1 start pressure ( similar to Danfoss KP5 set point ) - active just when ncr is oFF
0.0
fan 1 stop pressure ( similar to Danfoss KP5 set point - differential )
0.0
Functions about evaporator fans
force evaporator fans when refrigeration is off
oFF
force evaporator fans when humidification is on
oFF
enable evaporator fans when refrigeration is required but does not work
oFF
delay before establishing that refrigeration does not work
0
high defrost probe temperature forcing evaporator fan stop during cooling
-55.0
differential
0.0
Functions about door and light
Door switch and evaporator fan
stop evaporator fans when door is open
oFF
pause defrost timer when air defrost is suspended by evaporator fan stop
oFF
delay of fan automatic switch on
0
Functions about light
switch on the light when the door is open and off when closed
oFF
switch off the light automatically if it has been switched on from outside
oFF
delay of light automatic switch off
0
Functions about electronic expansion valve
Functions about electronic expansion valve preference
enable electronic expansion valve
oFF
refrigerant gas type: 0=R134A / 1=R404A / 2=R507A / 3=R22 / 4=R407C
0
network originating address of the pressure broadcast
0
the room is served by a central refrigerating unit
oFF
synchronize the liquid solenoid start with the central unit
oFF
delay before establishing that not enough info is received from the central unit
0
Functions about electronic expansion valve temperature
wanted overheating (similar to Danfoss thermostatic overheating spring regulation)
0.0
maximum overheating
0.0
maximum low pressure (LP) to activate vtH parameter (maximum overheating)
0.0
minimum overheating
0.0
minimum overheating during hot gas defrost or heating
0.0
wanted overheating increase when evaporator fans are off during cooling
0.0
maximum pressure allowed in the suction line (similar to Danfoss MOP)
0.0
minimum high pressure (HP) to activate vtU parameter (MOP)
0.0
Functions about electronic expansion valve timing
on-off duty cycle duration
0
on duty cycle duration at refrigeration start (set to 0 for previous stop value)
0
on duty cycle adaptation speed (low value for slow adaptation and small swinging)
0
Functions about turbo mode (forcing-on the expansion valve)
turbo mode: 0=off / 1=on / 2=auto
0
turbo mode delay
0
suction pipe overheating for turbo mode activation
0.0
difference between room and set point required for turbo mode
0.0
Functions about cooling capacity boost (raising a flag for the central unit)
boost mode: 0=off / 1=on / 2=auto
0
boost mode delay
0
room descent ramp, per hour, under which boost mode is activated
0.0
difference between room and set point required for boost mode
0.0
Functions about probe calibration
Probe nr. 1
room temperature
-99.0
enable probe
oFF
Probe nr. 2
defrost temperature
-99.0
enable probe
oFF
Probe nr. 3
suction temperature
-99.0
enable probe
oFF
Probe nr. 4
engine room temperature
-99.0
enable probe
oFF
Probe nr. 5
humidity
-99.0
enable probe
oFF
Probe nr. 6
high pressure (HP)
-99.0
enable probe
oFF
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
Maximum
Default Unit
_on
_on
255
99.0
99.0
99.0
_on
_on
40
2.0
10.0
6.0
/
/
/
(gauge) bar
(gauge) bar
(gauge) bar
_on
_on
_on
194 4:20:15
146.0
99.0
oFF
oFF
oFF
30:00
25.0
5.0
/
/
/
dd hh:mm:ss
◦C
K
_on
_on
194 4:20:15
_on /
_on /
30:00 dd hh:mm:ss
_on
_on
194 4:20:15
_on /
_on /
30 dd hh:mm:ss
_on
255
255
_on
_on
194 4:20:15
_on
0
0
oFF
oFF
5:00
/
/
/
/
/
dd hh:mm:ss
99.0
99.0
99.0
99.0
99.0
99.0
30.0
99.0
8.0
99.0
0.1
6.0
12.0
16.0
10.0
24.0
K
K
(gauge) bar
K
K
K
(gauge) bar
(gauge) bar
194 4:20:15
194 4:20:15
255
8 dd hh:mm:ss
5 dd hh:mm:ss
8 /
255
194 4:20:15
99.0
99.0
2
30:00
12.0
1.0
/
dd hh:mm:ss
K
K
255
194 4:20:15
99.0
99.0
2
1:00:00
0.5
2.0
/
dd hh:mm:ss
K
K
99.0
_on
0.0 K
_on /
99.0
_on
0.0 K
_on /
99.0
_on
0.0 K
_on /
99.0
_on
0.0 K
_on /
99.0
_on
0.0 %
oFF /
99.0
_on
0.0 bar
_on /
page 4\10
doc H422V9
Rem. Parameter
b7_
b7C
b7A
b8_
b8C
b8A
b9_
b9C
b9A
L__
Lt_
LtE
26
LtL
27
LtH
Ltd
LF_
LFE
LFL
LFH
LFd
Li_
LiE
LiL
LiH
Lid
Lj_
LjE
LjL
LjH
Ljd
Ld_
LdE
Ldo
Ldd
LE_
LEE
LES
LEo
LEd
LEF
LM_
LME
LMt
LMd
Ln_
LnE
LnS
Lnt
Lnd
LnF
LO_
LOH
LOd
LOt
LI_
L1H
L1d
L2H
L2d
L3H
L3d
L5H
L5d
Lo_
28
Loo
d__
dP_
29
dP4
dF_
dF4
P__
Pd_
PdM
PdS
Description
Probe nr. 7
low pressure (LP)
enable probe
Probe nr. 8
discharge temperature
enable probe
Probe nr. 9
oil pressure - eventually connected to AN-5
enable probe
Functions about alarm and stand-by
Temperature alarm
alarm enable
low temperature alarm set point
high temperature alarm set point
alarm delay
Full stop temperature alarm
alarm enable
low temperature alarm set point
high temperature alarm set point
alarm delay
Humidity alarm
alarm enable
low humidity alarm set point
high humidity alarm set point
alarm delay
Full stop humidity alarm
alarm enable
low humidity alarm set point
high humidity alarm set point
alarm delay
Low discharge overheating alarm
alarm enable
refrigerant overheating at the compressor outlet
alarm delay
Stop for low discharge overheating alarm
alarm enable
alarm show
refrigerant overheating at the compressor outlet
alarm delay
alarm reset delay
High discharge temperature alarm
alarm enable
high temperature alarm set point
alarm delay
Stop for high discharge temperature alarm
alarm enable
alarm show
high temperature alarm set point
alarm delay
alarm reset delay
Door alarm
enable door alarm
door alarm delay
temperature alarm minimum delay after door opening
Other alarm inputs
enable digital input 1 alarm (compressor safety devices)
digital input 1 alarm delay
enable digital input 2 alarm (evaporator safety)
digital input 2 alarm delay
enable digital input 3 alarm (heating safety thermostat)
digital input 3 alarm delay
enable digital input 5 alarm (compressor phase monitor / thermal overload relay)
digital input 5 alarm delay
On / stand-by status
actual status: stand-by or on
Functions about delays
Delay at power on
delay at power on for relay nr. 4 - compressor
Delay from previous stop
delay from stop to activation of relay nr. 4 - compressor
Functions about master preferences
Functions about network address
master address for global network communication
number of slaves connected to this master
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
Minimum
Maximum
Default Unit
-99.0
oFF
99.0
_on
0.0 bar
_on /
-99.0
oFF
99.0
_on
0.0 K
_on /
-99.0
oFF
99.0
_on
0.0 bar
oFF /
oFF
-55.0
-55.0
0
_on
145.0
145.0
194 4:20:15
_on /
-2.0 ◦ C
14.0 ◦ C
30:00 dd hh:mm:ss
oFF
-55.0
-55.0
0
_on
145.0
145.0
194 4:20:15
_on /
-5.0 ◦ C
20.0 ◦ C
30:00 dd hh:mm:ss
oFF
0.0
0.0
0
_on
100.0
100.0
194 4:20:15
oFF
0.0
100.0
30:00
/
%
%
dd hh:mm:ss
oFF
0.0
0.0
0
_on
100.0
100.0
194 4:20:15
oFF
0.0
100.0
30:00
/
%
%
dd hh:mm:ss
oFF
-99.0
0
_on
99.0
194 4:20:15
oFF
oFF
-99.0
0
0
_on
_on
99.0
194 4:20:15
194 4:20:15
_on
oFF
12.0
10:00
5:00
oFF
-55.0
0
_on
146.0
194 4:20:15
oFF /
105.0 ◦ C
1:00 dd hh:mm:ss
oFF
oFF
-55.0
0
0
_on
_on
146.0
194 4:20:15
194 4:20:15
_on
oFF
110.0
1:00
5:00
oFF
0
0
_on
194 4:20:15
194 4:20:15
_on /
30:00 dd hh:mm:ss
15:00 dd hh:mm:ss
oFF
0
oFF
0
oFF
0
oFF
0
_on
194 4:20:15
_on
194 4:20:15
_on
194 4:20:15
_on
194 4:20:15
_on
30:00
_on
30:00
_on
30:00
_on
1
oFF
_on
0
194 4:20:15
15:00 dd hh:mm:ss
0
194 4:20:15
5:00 dd hh:mm:ss
0
1
254
2
oFF /
16.0 K
5:00 dd hh:mm:ss
/
/
K
dd hh:mm:ss
dd hh:mm:ss
/
/
◦C
dd hh:mm:ss
dd hh:mm:ss
/
dd
/
dd
/
dd
/
dd
hh:mm:ss
hh:mm:ss
hh:mm:ss
hh:mm:ss
oFF /
1 /
2 /
page 5\10
doc H422V9
Rem. Parameter Description
Minimum
Maximum
PO_
Output assignment
PO2 assign out-2 relay to: 0=alarm / 1=heating / 2=humidifier / 3=air renew / 4=de0
255
frost duty / 5=humidity to FAN output / 6=outer dehumidifier / 7=OUT-1 /
8=OUT-3 / 9=OUT-4 / 10=OUT-5 / 11=OUT-6 / 12=FAN / 13=alarm NO
/ 14=fan off dehum
I__
Functions about input-output and machine state (read only)
IA_
Analog inputs
IA1
room temperature
-55.0
145.0
IA2
defrost temperature
-55.0
145.0
IA3
suction temperature
-55.0
145.0
IA4
engine room temperature
-55.0
145.0
IA5
humidity
0.0
100.0
IA6
high pressure (HP)
0.0
30.0
IA7
low pressure (LP)
0.0
30.0
IA8
discharge temperature
-55.0
145.0
IA9
oil pressure - eventually connected to AN-5
0.0
30.0
Id_
Digital input
Id1
compressor hardware safety
oFF
_on
Id2
evaporator hardware safety
oFF
_on
Id3
defrost hardware safety
oFF
_on
Id4
door closed
oFF
_on
Id5
phase software safety
oFF
_on
OA_
Analog output
OA1 condenser
0
255
OA2 humidity - 4...20 mA
0
255
Od_
Digital output
30
Od1 solenoid
oFF
_on
Od2 heating
oFF
_on
Od3 light
oFF
_on
Od4 compressor
oFF
_on
Od5 evaporator
oFF
_on
Od6 defrost
oFF
_on
Od7 alarm - eventually connected to OUT-2
oFF
_on
Od8 steam producer - eventually connected OUT-2
oFF
_on
Od9 air renew - eventually connected to OUT-2
oFF
_on
Od0 digital output 2
oFF
_on
OS_
Machine status
OS0 actual set point
-55.0
145.0
OS1 low pressure (LP)
0.0
999.0
OS2 refrigerant saturation temperature corresponding to the low pressure
-55.0
145.0
OS3 refrigerant overheating at the compressor inlet
-999.0
999.0
OS4 temperature before defrost - reads IA1 at range reentering after defrost
-55.0
145.0
OS5 set point temperature during defrost - reads IA1 at range reentering after defrost
-55.0
145.0
25
OS6 room descent ramp, per hour
-999.0
999.0
OS7 refrigerant saturation temperature corresponding to the high pressure
-55.0
145.0
OS8 refrigerant overheating at the compressor outlet
-999.0
999.0
OSS defrost status: 1=normal / 2=defr / 3=drip / 4=fan delay / 5=forced / 6=wait
0
255
LLA actual alarm - read only (0 means no alarm)
0
255
OSF defrost timer (in countdown-mode)
0
194 4:20:15
OSY timer of the temperature display timeout, after the end of defrost (see FdY)
0
194 4:20:15
Ov0 timer for not enough info (in countdown-mode)
0
194 4:20:15
OCH compressor hour counter
0 1193046:28:15
OSb special defrost display in progress - affects OS4 and OS5 (see FdY)
oFF
_on
ObY instrument not in stand-by (instrument on)
oFF
_on
OSt the instrument reached the set temperature
oFF
_on
OSn evaporator fan stopped by door opening or manual control
oFF
_on
Ont evaporator fan stopped by defrost temperature
oFF
_on
OSH compressor stopped by high pressure
oFF
_on
OSL compressor stopped by low pressure
oFF
_on
OSd compressor stopped by low discharge overheating
oFF
_on
OSE compressor stopped by high discharge temperature
oFF
_on
OSU compressor running for pump down
oFF
_on
MOP MOP limitation intervened recently
oFF
_on
OUP dehumidification in progress
oFF
_on
OPC the room is served by a central refrigerating unit
oFF
_on
Ov1 not enough info is received from the central unit
oFF
_on
On0 refrigeration is required but not working
oFF
_on
Onv liquid refrigerant required from the central unit
oFF
_on
OnH hot gas required from the central unit
oFF
_on
OnF turbo mode
oFF
_on
Onb boost mode
oFF
_on
E__
Functions about slave preferences
Ed_
Functions about network address
EdS slave address for local network communication
1
254
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
Default Unit
0 /
-55.0
-55.0
-55.0
-55.0
0.0
0.0
0.0
-55.0
0.0
oFF
oFF
oFF
oFF
oFF
◦C
◦C
◦C
◦C
%
(gauge) bar
(gauge) bar
◦C
(gauge) bar
/
/
/
/
/
0 /
0 /
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
-55.0
0.0
-55.0
-999.0
-55.0
-55.0
-999.0
-55.0
-999.0
0
0
0
0
0
0
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
oFF
/
/
/
/
/
/
/
/
/
/
◦C
(gauge) bar
◦C
K
◦C
◦C
K
◦C
K
/
/
dd hh:mm:ss
dd hh:mm:ss
dd hh:mm:ss
h...h:mm:ss
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
/
1 /
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doc H422V9
Rem. Parameter
EY_
EYY
EYr
E0_
E0d
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
Description
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
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Functions about display rotation, when EYr=2 (repeated
duration of label display during rotation
label text during rotation
duration of value display during rotation
Minimum
Maximum
Default Unit
0
0
255
2
1 /
0 /
0
0
255
255
1 /
2 /
0
000
0
255
yyy
255
0 /
rM= /
6 /
0
000
0
255
yyy
255
1 /
dE= /
0 /
0
000
0
255
yyy
255
1 /
SU= /
0 /
0
000
0
255
yyy
255
1 /
Er= /
0 /
0
000
0
255
yyy
255
1 /
rH= /
4 /
0
000
0
255
yyy
255
1 /
HP= /
0 /
0
000
0
255
yyy
255
1 /
LP= /
0 /
0
000
0
255
yyy
255
1 /
dI= /
0 /
0
000
0
255
yyy
255
1 /
oI= /
0 /
0
000
0
255
yyy
255
1 /
_t= /
4 /
0
000
0
255
yyy
255
1 /
LP= /
0 /
0
000
0
255
yyy
255
1 /
Lt= /
0 /
0
000
0
255
yyy
255
1 /
oh= /
0 /
0
000
0
255
yyy
255
1 /
bF= /
0 /
0
000
0
255
yyy
255
1 /
SF= /
0 /
0
000
0
255
yyy
255
1 /
MP= /
0 /
0
000
0
255
yyy
255
1 /
Ht= /
0 /
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
for each parameter)
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doc H422V9
Rem. Parameter
F8_
F8d
F8t
F8E
Eb_
EbH
EF_
EFF
EP_
31
EPA
2
Nr.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3
Description
Functions about display rotation, when EYr=2 (repeated for each parameter)
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
Functions about slave password
set a new password
Minimum
Maximum
Default Unit
0
000
0
255
yyy
255
1 /
od= /
0 /
0
1
1 /
0
1
0 /
000
yyy
___ /
Parameter remarks
Remark
Defrost is not performed twice in case safety switches of mc or evaporator are not ok.
The evaporator fans are restarted after FdF delay and before FdE delay, as soon as the defrost temperature reaches FtP.
The period of each cycle includes on-time + off-time, that is the overall duration of the cycle.
Eventually disabled by the parameter FPr.
Following defrost cycles will be aligned to the end of forced one.
Add 100 to FPt parameter to enable the outer defrost drive on INP-4. The defrost is initiated by INP-4 closure; after defrost and until INP-4
is closed, the instrument does not leave the dripping mode, to coordinate with eventual other instruments.
In H422V9, starting from revision 09, when FPt or FPF is 6, Ftt and FtF set the HP dew temperature that stops heat pump defrost.
In case of hot gas defrost, both IA2 and IA3 must reach Ftt.
Fixed time 120 s and manual reset.
When activated, a clever pump down algorithm coordinates the solenoid, the evaporator and the mc. There is no concurrent run of mc and
electric defrost or heating.
Forced refrigeration is disabled when room temperature is under LFL, forced heating is disabled over LFH.
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.
During the first 10 seconds of speed regulation, the n1L is replaced by (n1H+n1L)/2.
No action if the light is switched on from inside the room.
When off, the refrigeration solenoid is steadily on during cooling, without any safety. Use turbo mode for better control.
The address of the central unit who is broadcasting pressure (usually 1). Use 0 for previous application H425V1 with no origin specification.
Caution! Low overheating causes liquid return and compressor damage.
Overheating over the maximum forces valve anticipated opening.
Overheating under the minimum delays valve opening.
Caution! Short duty cycle reduces valve life.
Caution! Low overheating causes liquid return and compressor damage.
Caution! High adaptation speed causes swing in the suction line and damage to the compressor.
In turbo mode, the liquid refrigerant solenoid opens over vtt overheating, and closes at vtL.
Positive values mean temperature descent.
The low temperature differential is fixed, and alarm status stops at 0.2 ◦ C above the set point.
The high temperature differential is fixed, and alarm status stops at 0.2 ◦ C under the set point.
Passing from stand-by to on and at power on, there is a 5 second delay spent in a virtual stand-by.
In case a crankcase heater is installed, a long delay is advised. Press Esc to skip compressor delay.
The minus sign on display ("-") signals that output is going to start after a delay.
The use of this parameter is restricted to ReFreeX authorized personnel; further detail is available on demand. This parameter is not implemented
on every instrument. The value and the action of this parameter are local to each slave. If you are unsure, during action relative to this parameter,
press B1 at any moment. Three underscores, three zero digits, and three empty-characters are considered trivial password values; any other
combination of three alphanumeric characters is a non-trivial password. If a non-trivial password value is set, then entering the menu, the label
PAS is shown. Press B6, then introduce the password, confirm by B6, and press B4. If the introduced value does not match the saved password,
then the label PAS is shown again, and the operation may be retried for a maximum of other two times. In case of unlocking failure, the label
bAd is shown. To exit, press B4 twice or B1 once. To remove the password, set EPA to value 000 . To set or to change the password, if you
know the authorization code, set EPA to a new non-trivial value, and exit the menu. The label rEP is shown. Press B6, then reintroduce the
same password, confirm by B6, and press B4. The label AUt is shown. Press B6, then introduce the authorization code, confirm by B6, and
press B4.
Alarm list
Display
A01
A02
A03
A04
A05
A06
Alarm
low temperature
high temperature
mc alarm
evaporator alarm
defrost alarm
door open
Low temperature limit has been reached.
High temperature limit has been reached.
Pressure switch, thermistors, or any other compressor safety device has disconnected.
Evaporator thermal relay, or other evaporator safety device has disconnected.
defrost safety thermostat, or any other defrost safety device has disconnected.
Time limit for door opening has been reached.
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doc H422V9
Display
A07
A08
A09
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
4
Push
B1
B2
B3
B4
B5
B6
6
Led
L1
L2
L3
L4
L5
L6
L7
7
Compressor overload/thermal relay disconnected, or missing mains phase - manual reset.
Low temperature limit for full stop has been reached - full system stop - manual reset.
High temperature limit for full stop has been reached - full system stop - manual reset.
Oil differential pressure remained under minimum value for 120 seconds - manual reset.
Low humidity limit has been reached
High humidity limit has been reached.
Low humidity limit for full stop has been reached - full system stop - manual reset.
High humidity limit for full stop has been reached - full system stop - manual reset.
Memory loss of real time clock [RTC] - timer 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.
Refrigerant overheating at compressor outlet went under alarm threshold.
Refrigerant overheating at compressor outlet went under alarm threshold - compressor stop - delayed reset.
Refrigerant temperature at compressor outlet went over alarm threshold.
Refrigerant temperature at compressor outlet went over alarm threshold - compressor stop - delayed reset.
Slave alarm list
Display
A96
A97
A98
A99
5
Alarm
mc phase
low temp stop
high temp stop
oil pressure
low humidity
high humidity
low humid stop
high humid stop
RTC memory loss
EEPROM invalid
EEPROM read start
EEPROM read end
EEPROM write start
EEPROM write end
EEPROM write max
low discharge oh
low disch oh stop
high discharge t
high disch stop
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.
Button list
button
esc - silence - skip
up
on/stand-by - pause
left - light
down - defrost
right - menu - set
Function
Exit without saving from any menu - alarm buzzer silence - skip compressor delay.
Up navigation in the menu.
Toggle between on and stand-by - toggle evaporator fan stop.
Left navigation in the menu - switch the light on and off.
Down navigation in the menu - force immediate defrost or skip the one in progress.
Right navigation in the menu - display and modify the set point - enter menu.
Led list
compressor
evaporator
defrost-hum-deh
air renew
heating
unused
light
Function
On during compressor run - blinking slowly during activation delay and pumpdown.
On during evaporator run - blinking slowly during activation delay and pumpdown.
On during defrost and humidification - blinking slowly during dripping and dehumidification.
On during air renew.
On during heating.
Unused in this application.
On when lighting is on - blinking slowly during deactivation delay.
Soft command list
Soft command
4 skip mc delay
5 skip defrost
6 reset mc counter
Function
Skip compressor delay.
Skip defrost in progress and enter fan pause.
Reset compressor hour counter.
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
page 9\10
doc H422V9
How to ...
How to ...
Switch between on and stand-by.
Stop or restart evaporator fans.
Program the menu.
Show or change temperature set.
Force an air renew.
Force or skip a defrost.
9
Shortcut list
Buttons to press
B5
B2
10
Function
Keep pressed B3 button, to activate and deactivate stand-by. In stand-by every output is disabled except light,
leds from L1 to L6 blink, timers continue to count.
Press shortly the B3 button. When the evaporator fans are stopped, the display blinks.
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 _t0, then confirm it.
Keep pressed B2.
Keep pressed B5.
Shortcut description - keep pressed 5 seconds
Force an immediate defrost, or skip the one in progress.
Force an immediate air renew.
Led and push button location
ReFreeX
L1 L2 L3 L4 L5 L6
B1
B2
B3
B4
B5
B6
L7
Set
doc A112X1
8
80% refrigerant reduction – full digital control – reduced winter consumption
80% di riduzione del refrigerante – controllo digitale completo – consumi invernali ridotti
The LATEX source of this document has been automatically produced by 4_13_22 on 2015-11-27
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