Checking Abnormal Noise - Danfoss DHP-H Varius Pro+ Manual

Commissioning
Sensors
Hot tap water (TWC)
VVC (TWC)
Water heater temp (TWC)
Hot gas charging
Incoming cold water
Distribution circuit 1 sup-
ply line
Distribution circuit 1 re-
turn line
Discharge pipe
Fluid line
Condensation pressure
Condensation
Supercooling
Suction gas
Evaporation pressure
Evaporation
Superheating
Opening degree of expan-
sion valve
Envelope (working area)
7.6

Checking abnormal noise

The characteristics of the piping system and construction can, under unfavourable circumstances, cause noise and vibration to be ampli-
fied at certain speeds.
Test-run the heat pump in both hot water and heating operating modes, and check that there is no abnormal noise.
Test-run the heat pump across the entire speed range of the compressor and check that there is no abnormal noise. While this test is in
progress, check that there is no abnormal noise in other parts of the building.
Any problems should be remedied in the first instance by checking the pipe installation and install flexible hoses and sound damping
pipe clamps in the vicinity of the pump. If any problems remain, problematic compressor speeds can be blocked/adjusted in the control
system.
Circulation pump settings (max/min) speeds can be adjusted in the control system.
30
DHP-H Varius Pro+/DHP-L Varius Pro+
Explanation
Only if expansion module (EM) is installed. Separate manual.
Shows the temperature of the outgoing hot water from the final water heater.
Only if expansion module (EM) is installed. Separate manual.
Shows the temperature of the recirculating hot water.
Only if expansion module (EM) is installed. Separate manual.
Shows the temperature in the final water heater.
Shows the temperature from hot gas charging.
Shows the temperature of incoming cold water for the mixing valve.
Distribution circuit 1 on BM card
Shows the supply temperature of distribution circuit 1.
Distribution circuit 1 on BM card
Shows the return temperature of distribution circuit 1.
Shows the temperature of the delivery line.
Shows the temperature of the fluid line.
Shows the condensation pressure of the refrigerant circuit (bar).
Shows the condensation temperature of the refrigerant circuit.
Shows the supercooling of the refrigerant circuit (K).
Shows the temperature of the suction gas line.
Shows the evaporation pressure of the refrigerant circuit (bar).
Shows the evaporation temperature of the refrigerant circuit.
Shows the superheating of the refrigerant circuit (K).
Shows the opening degree of the expansion valve 0-100%.
Shows where the compressor is located in the working area.
VIJSG202 Danfoss Heating Solutions