Danfoss DHP-A Installation Manual

Also see for DHP-A: User guide Service instructions User manual Installation and service instructions User manual

Danfoss DHP-A Installation Manual Manual pdf 59 page image

10.5.9 Exit test operation1. Set the parameter for MANUAL TEST to 0.10.6 Commissioning10.6.1 Select operating mode1. 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 systemIf a fixed speed circulation pump is used, the heat pump settings must be adjusted to the applicable heating system, for instance anunderfloor 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 checkDuring transportation and installation there is a certain risk that the heat pump can be damaged, components may move or get bentand 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 noabnormal 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 disturbancein your own home as well as none caused to any neighbours10.6.4 After start upN Remember that it takes time for the heat pump to heat a cold house. It is best to let the heat pump work at itsown pace and NOT raise or alter any values in the control system to try to heat it up more rapidly.Caution If there is a high pressure or low pressure alarm in conjunction with commissioning it usually means thatthere is air in the heating resp brine system.10.6.5 Trimming the heating systemTo obtain a heating system balance and obtain an even and comfortable indoor temperature, the heating system must be adjustedaccording to the example below.N Adjust the heating system during the winter to obtain the greatest possible output.Installation Guide Domestic heat pumpsDanfoss Heating Solutions VMGFQ102 59