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SpaceKeeper Console (SKC) – Installation Operation Maintenance Manual
© Copyright 2013 CGC Group Inc. Installation Operation Maintenance Manual is Subject to Change without Notice Last Revised Nov 15, 2019
controls are powered down for at least 20 seconds, and the green power light
goes out. A soft lockout is a compressor shutdown that will be restored once the
condition causing the shutdown returns to normal.)
d.
During compressor operation, refrigerant temperature, system fluid
temperature and discharge air temperature are continuously monitored. If the
refrigerant temperature drops below 35
F, compressor operation will be
disabled. After 10 minutes an auto reset occurs and the compressor will be
enabled as soon as the temperature rises above 60
F. Actual compressor restart
will be delayed a minimum of 5 minutes by the anti-recycle timer. A flash code
of 2 will be initiated on LED 15 upon a low refrigerant temperature shutdown.
e.
If during compressor operation the condenser leaving temperature rises above
140
F, compressor operation will be disabled. After 10 minutes an auto reset
occurs and the compressor will be enabled as soon as the temperature drops
below 120
F. The outgoing system fluid sensor is mounted on the leaving fluid
pipe. Actual compressor restart will be delayed a minimum of 5 minutes by the
anti-recycle timer. A flash code of 3 will be initiated on LED 15 upon a high
outgoing system fluid temperature shutdown.
f.
If the discharge air temperature drops below 40
F, compressor operation will
be disabled. After 10 minutes an auto reset occurs and the compressor will be
enabled as soon as the temperature rises above 55
F. The discharge air
temperature sensor is mounted on the fan housing. Actual compressor restart
will be delayed a minimum of 5 minutes by the anti-recycle timer. A flash code
of 4 will be initiated on LED 15 upon a low discharge air temperature shutdown.
g.
The condensate level sensor is a 100 ohm thermistor that is heated for 15
seconds every 4 minutes. Its temperature is measured at the beginning of the
heat cycle, and again at the end of the heating cycle. If the condensate level
rises above the sensor it will not warm up during the warm up cycle, and the
temperature change will be insignificant. It is this lack of temperature change
that the controller sees as an impending condensate overflow. When high
condensate level is detected, compressor operation is immediately terminated,
and at the same time the fan is stopped for 30 seconds, and then restarted. At
this time a flash code of 7 will be initiated on LED 15. The 4 minute cycle will
continue until the cooling call is no longer in place. If the condensate level drops
below the sensor, compressor operation will be returned to normal. However, if
the condensate level stays above the sensor for more than 15 minutes, the fault
alarm will be triggered. This fault signal will automatically reset once the
condensate level goes below the sensor.
Note: The last flash code will be maintained in memory for 1 week or until the unit controls are
powered down. The flash code will continue until the problem has cleared and the compressor has
