Commissioning - Danfoss DHP-A Installation Manual

Installation Guide
10.5.9 Exit test operation
1. Set the parameter for MANUAL TEST to 0.
10.6

Commissioning

10.6.1 Select operating mode
1. Set the heat pump to the desired operating mode in the menu INFORMATION -> OPERAT.
2. If necessary, set certain parameters in the control system, such as ROOM and CURVE.
10.6.2 Adaptation to the heating system
If a fixed speed circulation pump is used, the heat pump settings must be adjusted to the applicable heating system, for instance an
underfloor heating or radiator system. The delta temperature (the difference between the supply line and return line) should be 7–10°C.
If this is not reached, the flow of the circulation pump may need adjusting depending on the applicable heating system.
The delta temperature should be 3–5°C for the brine system.
10.6.3 Noise check
During transportation and installation there is a certain risk that the heat pump can be damaged, components may move or get bent
and this can cause noise. Because of this it is important to check the heat pump when it has been installed and is ready to be commis-
sioned to ensure that everything is in order. Test operate the heat pump in both heating and hot water modes to ensure that there is no
abnormal noise. While doing this, also check that there is no abnormal noise in other parts of the house.
DHP-A; noise is coming from the outdoor unit when the fan is in operation, check during manual operation that there is no disturbance
in your own home as well as none caused to any neighbours
10.6.4 After start up
Remember that it takes time for the heat pump to heat a cold house. It is best to let the heat pump work at its
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own pace and NOT raise or alter any values in the control system to try to heat it up more rapidly.
If there is a high pressure or low pressure alarm in conjunction with commissioning it usually means that
Caution
there is air in the heating resp brine system.
10.6.5 Trimming the heating system
To obtain a heating system balance and obtain an even and comfortable indoor temperature, the heating system must be adjusted
according to the example below.
Adjust the heating system during the winter to obtain the greatest possible output.
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Danfoss Heating Solutions
Domestic heat pumps
VMGFQ102
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