Danfoss DHP-AQ, Руководство по установке

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11.4.8 Checking the four-way valve
1.
Start the circulation pump.
2. Start the compressor.
3. Start the fan.
4. Check the temperature on the supply line (INFORMATION -> OP. DATA) after a few minutes.
5. Switch the four way valve (FOUR-WAY VALVE = 1).
6. Check that the temperature of the supply line falls.
7. Reset the four-way valve, fan, compressor and circulation pump
11.4.9 Checking sensors
Check the defrost sensor temperature so that it corresponds to the actual outdoor temperature.
11.4.10 Exit test operation
Set the value for MANUAL TEST to 0.
11.4.11 Reinstall the lower front hatch.
After completed checks and tests the lower front hatch must be reinstalled on the heat pump.
11.5 Start-up and commissioning
11.5.1 Adaptation to the heating system
If the circulation pump is used with a fixed pump speed the heat pump settings must be adjusted to the applica-
ble 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.
11.5.2 Select operating mode
Set the heat pump to the desired operating mode in the menu INFORMATION -> OPERAT. If necessary, set certain
parameters in the control system, such as ROOM and CURVE.
11.5.3 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 commissioned 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, check that there
is no abnormal noise in other parts of the house because unwanted noise can occur in rooms other than the one
where the heat pump is located.
Noise is produced from the heat pump 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.
11.5.4 After start up
Note! 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 own pace and NOT raise or alter any values in the control system to try to heat it up more
rapidly.
Caution! If there is an alarm in conjunction with installation it usually means that there is air in the system.
Caution! In the event of longer periods of downtime and risk of ice build-up in the system, the heat pump
must be drained of water.
Installation instructions VMGFD102 – 69