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Quest DEH 3000R
Installation, Operation and Maintenance Instructions
9
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c. Press and hold the “VENT” button until “CLOSED” flashes on the display.
d. Release the “VENT” button, then press it again to switch vent mode to “OPEN”.
e. Confirm that the Quest fan is ON. Ventilation damper is OPEN. QUEST compressor must be OFF.
f. Press and hold the “VENT” button until the “OPEN” flashes on the display.
g. Release the “VENT” button, then press it again to switch vent mode to “CLOSED”.
Troubleshooting:
If any functions are not working properly, check the wiring and connections. A voltmeter may be used across
terminals to verify voltage. If there is concern about the dehumidifier not operating properly, the leads exiting the
QUEST dehumidifier may be connected according to the following chart:
Wire connections
Operation
Yellow & Blue
Fan & Compressor
Yellow & Green
Fan Only
WARNING!
DO NOT MAKE ANY OTHER CONNECTIONS OR TRANSFORMER DAMAGE
MAY RESULT.
7. Verify any additional optional control operations such as fan interlock or A/C lockout.
8. Proceed to the Operation section.
FOR INSTALLER & OWNER:
3. Operation
On the display screen, a solid “O” in front of any of the 3 functions (SETPOINT, VENT, FAN) indicates the function
is operating. A flashing “O” indicates it is in a wait mode and not available at the moment. No “O” indicates the
function is currently OFF.
Solid “O” before
Indicates
SETPOINT
Dehumidifier on
VENT
Fresh air ventilation cycle in progress
FAN
Fan on
Wait mode is a factory-programmed time period meant to prevent short cycles. This extends the life of the
dehumidifier. When a flashing “O” is encountered, the unit is in wait mode and IT COULD BE UP TO 10
MINUTES BEFORE OPERATION RESUMES.
3.1 Display
• Whenever there is power to the control, it will display the time, the day, % relative humidity, and temperature.
• When the control is actually switched ON, the %RH setpoint, fan status, run mode (program or hold), and fresh
air ventilation status is displayed.
• When a key is pressed the display will light for approximately ½ a minute.
• The Time and Day is displayed at the top of the screen.