*****INTERNAL*****30 R_D proof- 26.10.2022 / 09:15:46- VaillantGroup\DOC-agt\Brand\VIH_QW_190_6\ENG\OI-II_GB_0020291525
0020291525_04 Installation and maintenance instructions
53
Setting level
Values
Unit
Increment, select, ex-
planation
Factory setting
Setting
Min.
Max.
Software version
Current value of the
control PCB (HMU
indoor unit xxxx, HMU
outdoor unit xxxx) and
the display (AI xxxx)
xxxx.xx.xx
Installer level
→
Resets
→
Statistics
→
Reset statistics?
Yes, No
No
Maintenance messages
→
Reset
maintenance message
Yes, No
No
High-pressure switch
→
Reset
fault?
Yes, No
No
Factory settings
→
Restore fact-
ory settings
Yes, No
No
Screed drying
2)
Off, 1
–
29
Off
Installer level
→
Start inst. assistant
→
Language
Languages available for
selection
02 English
Syst. control avail.?
Yes
No
Yes, No
Im. heater power supp.
230 V
400 V
Im. heater outp. range
External
6
kW
1
–
6: 1 kW
–
6 kW
6
Cooling technology
No cool-
ing
Active
cooling
Compr. current limit
13
25
A
1
5
–
7 kW: 13
–
16 A
12 kW: 20
–
25 A
MO relay
None, fault signal, ext.
immersion heater, DHW
3WV
None
Intermediate heat exchanger
Yes
No
Yes, No
Check program: Purge building
circuit
Yes
No
Yes, No
No
Contact details Telephone num-
ber
Phone number
0
–
9
Empty
End the installation assistant?
Yes, back
1)
See the overview of fault codes: Fault lists are only available, and can only be deleted, if faults have occurred.
2)
This parameter does not appear if a system control is connected.
3)
This parameter is only available in the products for Spain
G
Status codes
Code
Meaning
Status external current anode
Anode not connected, Anode OK, Anode Fault
S.34 Heating mode: Frost pro-
tection
If the measured outdoor temperature falls below XX °C, the temperature of the heating circuit's flow
and return is monitored. If the temperature difference exceeds the set value, the pump and com-
pressor are started without a heat demand.
S.100 Standby
There is no heat demand or cooling demand. Standby 0: Outdoor unit. Standby 1: Indoor unit
S.101 Heating: Compressor
shutdown
The heat demand is met, the demand is ended by the system control and the heat deficit is offset.
The compressor is switched off.
S.102 Heating: Compressor
blocked
The compressor is blocked for heating mode because the heat pump is outside of its application lim-
its.
S.103 Heating: Prerun
The start conditions for the compressor in heating mode are checked. Start the other actuators for
heating mode.
S.104 Heating: Compressor
active
The compressor works in order to meet the heat demand.
S.107 Heating: Overrun
The heat demand is met, the compressor is switched off. The pump and fan overrun.
