Indicator Lights - McQuay MCK020A Technical Manual

Indica

Indicator Lights

Indica tor Lights tor Lights tor Lights
Indica Indica tor Lights
Wireless Remote Control (Universal Board)
Cooling : LED Indicator Light Display
POWER TIMER
POWER TIMER
○
○
○
Continuously
Once every 3 second
Twice every 3 sec
3 Times every 3 sec
4 Times every 3 sec
Wired Remote Control (Universal Board)
Cooling / Heatpump Model
Error Code at 7 segment Display
E1 Blinking
E2 Blinking
E3 Blinking
E4 Blinking
E5 Blinking
E6 Blinking
Heat LED Blinking
Water Pump
The water pump will on if compressor is on during cooling cycle. The pump will remain on for at least 5 minutes after
the compressor is off.
During mode change from cooling to non-cooling mode, the pump will on for minimum 5 minutes. During defrost cycle,
the pump will on and will on for another 5 minutes once the defrost cycle is terminated.
Water level Switch
This normally close switch is to detect faults in water pump system. It will confirm for 30 seconds for switch open and
60 seconds for switch close.
Once switch is confirmed open, it will force compressor to cut off. If the switch is closed within 5 minutes, the
compressor is allowed to cut in. If the switch does not close for more than 5 minutes, the system will warn user
regarding the fault, the compressor is not allowed to cut in. If the switch is confirmed opened twice within 30 minutes,
the system assumes there are faults.
SLEEP
SLEEP HEAT
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○ / ●
Heatpump : LED Indicator Light Display
POWER TIMER
Operation/ Faulty Indication
Timer on
Sleep mode on
Heat mode
Frost prevention mode
Compressor overload
Pump fault
Gas leak
Room/ indoor/ outdoor coil sensor contact
Loose/ short
Operation/ Faulty Indication
Room sensor contact loose/ short
Indoor coil sensor contact loose/ short
Outdoor coil sensor contact loose/ short
Compressor overload
Gas leak
Pump faulty
Outdoor defrost (for Heatpump only)
127
HEAT