INSTALLATION
Commissioning
16
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!
Material losses
Strain relief fittings that are too tight may lead to a short
circuit.
f
f
Never tighten them completely.
Connection
nc H L
N L1
X2
X4
X3
T
D
00000
58
26
5
1
2
3
1
X3 Compressor (inverter)
L1, N,
2
X4 Control voltage
Power supply: L, N
3
X2 Low voltage (BUS cable)
nc (not assigned)
High H
Low L
12. Commissioning
A WPM heat pump manager is required to operate the appliance.
All necessary adjustments prior to and during operation are made
on this device.
Only qualified contractors may make the settings in the heat pump
manager commissioning report, commission the appliance and
instruct the owner in its use.
Carry out commissioning in accordance with these installation
instructions and the operating and installation instructions of the
heat pump manager. Our service department can assist with com-
missioning, which is a chargeable service.
Where this appliance is intended for commercial use, the rules of
the relevant Operational Safety Ordinance must be observed at
commissioning. For further details, check with your local author-
ising body (e.g. TÜV).
12.1 Checks before commissioning
Before commissioning, check the following points (note the com-
missioning checklist):
12.1.1 Heating system
- Have you filled the heating system to the correct pressure
and closed the automatic air vent valve?
12.1.2 Temperature sensor
- Have you correctly positioned and connected the outside
temperature sensor and return temperature sensor (in con-
nection with a buffer cylinder)?
12.1.3 Power supply
- Have you correctly connected the power supply?
12.2 Operation with an external second heat source
The appliance is factory set for compressor operation with an elec-
tric emergency/booster heater. If the appliance is operated in dual
mode with an external second heat source, set the DIP switch to
"Compressor mode with external second heat source" (see chapter
"Troubleshooting / Checking the IWS DIP switch settings").
12.3 Initial start-up
12.3.1 Heating curve adjustment
The efficiency of a heat pump decreases as the flow temperature
rises. Adjust the heating curve carefully. Heating curves that are
set too high result in the zone and thermostatic valves closing,
which may prevent the minimum flow rate required in the heating
circuit from being achieved.
f
f
Observe the WPM operating and installation instructions.
