Quest CDG 74
Installation, Operation and Maintenance Instructions
1-877-420-1330
6
www.QuestHydro.com
2.8 Pump Purge Button
During normal operation the pump automatically cycles when the reservoir is full. Press the PURGE button to remove
condensate manually from the reservoir. There are several ways to manually remove water from the reservoir:
1.
Press the PURGE button once and the pump will run for 20 seconds
2.
Press and hold the PURGE button and the pump will run for up to 30 seconds
3.
Press the PURGE button while the dehumidifier is powered off and the pump will run for 30 seconds.
Always manually purge the water reservoir before transport or storage. Turn off the power and allow the plugged in dehu-
midifier to rest 15 minutes before the final purge.
2.9 Hour Meter
The digital hour meter displays the amount of time the dehumidifier has been turned on to the tenth of an hour. The hour
meter continuously cycles between total machine hours and job hours every 3 seconds. Hours are stored in memory even
when the unit is unplugged. The previous totals will be displayed next time the unit is powered on.
2.10 HOURS Button
Pressing the HOURS button displays the hour meter when the unit is turned off but plugged into power. To reset job
hours, press and hold the HOURS button for 5 seconds when the unit is operating.
2.11 DEFROST Light
The DEFROST light turns on when the unit is in defrost cycle and indicates when the compressor is off.
3 Maintenance
3.1 Air Filter
The Quest CDG 74 is equipped with a pleated media air filter that must be checked regularly. The standard filter is a
MERV-8 high efficiency filter. Operating the unit with a dirty filter will reduce the dehumidifier’s capacity and efficiency
and may cause the compressor to cycle off and on unnecessarily. Quest recommends changing the filter with each grow
cycle.
IMPORTANT: DO NOT operate the unit without the filter or with a less effective filter as the coils inside the unit
could become clogged and require disassembly to clean.
3.2 Storage
There are three issues to consider when the Quest CDG 74 is stored between uses. The first two issues occur when water
trapped in the unit and condensate pump, and the third occurs when the unit is stored with a dirty filter. If standing water
is left in the unit, the condensate pump can be damaged when temperatures fall below freezing and/or biological growth
can occur. Biological growth can also be caused from storing the CDG 74 with a dirty filter.
The effect of the trapped water can be greatly reduced if precautions are taken to remove as much water as possible
before storage. In addition, biological growth can be prevented if the filter is replaced before storage.
To reduce the chance of damaging the condensate pump from water freezing:
1.
Use the pump PURGE button to reduce the water level in
the reservoir.
2.
Walk out the condensate to drain it completely.
