Vaillant VWZ AI User Manual

Appendix
0020291573_00 Heat pump control interface module Installation instructions 25
Setting level Values Unit Increment, select, ex-
planation
Factory setting Setting
Min. Max.
T.0.56 Compressor inlet temper-
ature
-40 135 ℃ 0.1
T.0.57 EEV outlet temperature -40 90 ℃
T.0.59 Capacitor outlet temperat-
ure
-40 90 ℃ 0.1
T.0.63 High pressure 0 31.9 bar (abs) 0.1
T.0.64 Low pressure 0 8 bar (abs) 0.1
T.0.67 High-pressure switch Closed Open Closed, Open
T.0.85 Evaporation temperature -40 90 ℃ 0.1
T.0.86 Condensation temperature -40 70 ℃ 0.1
T.0.87 Overheating target value -40 90 K 0.1
T.0.88 Overheating actual value -40 90 K 0.1
to 20 K are normal op-
erating parameters
T.0.89 Subcooling target value -40 90 K 0.1
T.0.90 Subcooling actual value -40 90 K 0.1
T.0.93 Compressor speed 0 120 Rotation/s 1
T.0.123 Temperature switch:
Compressor outlet
Open Closed Open, closed
T.1.02 DHW prioritising diverter
valve
Heating Domestic
hot water
Heating, domestic hot
water
Heating
T.1.44 Cylinder temperature -40 90 ℃ 0.1
T.1.46 Lockout contact S20 Closed Open Closed, Open Closed
T.1.69 Outdoor temperature -40 90 ℃ 0.1
T.1.70 System temperature -40 90 ℃ 0.1
T.1.71 DCF status Current value No DCF signal
Validate DCF signal
Valid DCF signal
T.1.72 Lockout contact S21 Closed Open Closed, Open Open
T.1.119 MO1 output Off On Off, On Off
T.1.125 MPI input Current value
T.1.126 MO2 output Off On Off, On Off
Installer level → Configuration →
Language Current language Languages available for
selection
02 English
Contact details → Telephone
number
Phone number 0–9
Heat curve
2)
0.4 4.0 0.1
Summer sw.-off temp.
2)
10 90 ℃ 1
Heating biv. point
2)
-30 +20 ℃ 1
DHW bivalence point
2)
-20 +20 ℃ 1
Heating alt. point
2)
-20 +40 ℃ Off
1
Max. flow temperature
2)
15 90 ℃ 1
Min. flow temperature
2)
15 90 ℃ 1
Heating mode activ.
2)
On
Off
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

Vaillant VWZ AI Specifications

General

Brand	Vaillant
Model	VWZ AI
Category	Control Unit
Language	English