Calorex Pro-Pac 45 - HEAT PUMP MALFUNCTION; USER CHECK LIST

8.0 HEAT PUMP MALFUNCTION
USER CHECK LIST 30/45/70BM
LAMP ACTION
UNIT DOES NOT OPERATE
MAINS RED
OFF
Check mains supply, – external fuses – isolator etc.
FAULT AMBER
OFF
DEFROST WHITE
OFF
WATER FLOW GREEN
OFF
MAINS RED
ON
Water flow inadequate.
FAULT AMBER
OFF
Check water pump to restore water flow rough machine. Check
waterflow rate. Check internal control MCB
DEFROST WHITE
OFF
Check ermostat set point.
WATER FLOW GREEN
OFF
MAINS RED
ON
12 hour timer timing out or standby switch set to 0
FAULT AMBER
OFF
DEFROST WHITE OFF
WATERFLOW GREEN ON
MAINS RED
ON
Check air flows are not restricted.
FAULT AMBER
ON
Check ermal cut out on So Start if fitted.
DEFROST WHITE
OFF Check HP/LP cutout switch and reset (red button below console
ermostat). NOTE LP Switch is Auto reset on Y machines. Check Fan
and compressor overloads (Fan located in electric box)
WATERFLOW GREEN
ON
FAN ON COMPRESSOR OFF
MAINS RED
ON
Unit on defrost (normal) if aer 20 mins e defrost lamp is still on check
at air temperature is not below 10ºC for 'M' models (-15ºC for 'MY'
models).
FAULT AMBER
OFF
DEFROST WHITE ON
Check evaporator is clean
WATERFLOW GREEN
ON
Check 12 hours elapsed since first power up.
UNIT OPERATES INTERMITTENTLY
MAINS RED
ON
Check water flow is not restricted,
FAULT AMBER
ON/OFF
and at electrical supply is adequate.
DEFROST WHITE
OFF
Check at linked in external equipment is not e cause of e fault.
WATERFLOW GREEN
ON/OFF
WARNING: Isolate machine electrically before entering machine or removing
panels.
The user check list should be carried out before initiating a service call.
Do not attempt to interfere wi any internal control settings as ese have
been factory calibrated and sealed.
Only a competent electrician should attempt to rectify electrical supply
problems.
The refrigeration circuit can only be worked on by an auorised/competent
technician in accordance wi EU 517/2014.
Any sign of abnormal operation such as water dripping should be reported
immediately to your installer or to Danerm Group UK.
If in doubt or if advice required, contact Danerm Group UK Service
Department.
Telephone +44 (0)1621 856611
30
SD566252 ISSUE 51
PR0-PAC SYSTEM OWNER INSTALLATION MANUAL