*****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.