4
QUEST 746
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
QUESTCLIMATE.COM
(877) 420-1330
4. INSTALLATION
4.1 LOCATION
The Quest 746 Dehumidifier can be installed in a variety of locations to meet the owner’s needs as listed
below. In all cases keep the following cautions in mind:
»
It is designed to be installed INDOORS IN A SPACE THAT IS PROTECTED FROM RAIN AND
FLOODING.
»
Install the unit with space to access side panel for maintenance and service. DO NOT INSTALL UNIT
WITH ACCESS PANEL INACCESSIBLE.
»
Avoid discharging the air directly at people, or over the water in pool areas.
»
Be certain there is NO chance the unit could fall into water.
»
DO NOT use the Quest 746 Dehumidifier as a bench or table.
»
DO NOT place the Quest 746 Dehumidifier directly on structural members. Provide vibration
isolation in order to minimize operational vibration and/or noise.
»
A drain pan MUST be placed under the unit if installed above an area where water leakage could
cause damage.
»
Do not obstruct the air intake and exhaust. Maintain a 1 ft clearance around the air intake and
exhaust.
»
Permanently removing the fixed feet (4038225 and 4038226) from the base pan will invalidate the
ETL/UL certification. Please contact Quest for more information.
4.2 ELECTRICAL REQUIREMENTS
High Voltage Connections
The Quest 746 Dehumidifier must be wired directly to the electrical service. The current draw under
normal operating conditions is listed in section 3.
Information required for proper electrical service installation and overcurrent protection may be found
on the Dehumidifier nameplate. The unit power switch is a disconnect switch. Route power and ground
wires through the electrical knockout hole. Electrical input power wiring must comply with all national,
state, and local electrical codes. Make electrical connections according to the wiring diagram provided in
this manual and inside the access panel of the Dehumidifier. A ground fault interrupter protected circuit
is recommended.
Low Voltage Connections
Install the external control in a central area of the structure where it will sense the relative humidity
accurately. Avoid installing the sensor near HVAC supply registers, near exterior doors, or near pool or
spa. The installer must supply the wiring between the Dehumidifier and the control panel. Be sure to
safely route the control wiring to prevent damage during installaion. Be careful not to cross the wires
when connecting the Dehumidifier and the Control.
The controls of the Dehumidifier are powered by a low voltage circuit (24VAC) and must NEVER contact
or be connected to a high voltage circuit. The control terminals are labeled to prevent confusion. For
more information on controls, see section 5.
WARNING!
Electrical Shock Hazard: Electrical power must be present for
some tests. These tests should performed by a qualified service person.
