Danfoss DHP-H Installation And Service Instructions Manual page 55

Cause
Flexible hoses missing
Clicking
Installing / suspending
pipes
Noise in the heating system
Cause
Vibrating cables or pro-
tective sleeves to the
pressure switches.
Troubleshooting
Flexible hoses must be installed according to the instructions.
Establish when clicking occurs.
Troubleshooting
Establish where the vibration noise is coming from.
Install flexible hoses according
to the instructions.
Locate the clicking noises. Try
lubricating lead-ins in walls,
ceilings and floors with silicone
spray.
A surge tank can be installed.
Check if the mountings are too
rigid, right type, right sizes or
too closely installed.
Prevent the insulation sleeve
vibrating by using insulation
tape for example.
VMBMA102
Remedy
Remedy