1-800-533-7533
Quest
DRY
150 Installation, Operation and Maintenance Instructions
5
www.thermastor.com
quest
Asset Protection and IAQ Solutions
quest
FOR HVAC INSTALLER ONLY
Place the Quest
DRY
150 on supports that raise the base of the unit above the top of the flanges on the drain
pan beneath it. Raising the Quest
DRY
150 will help the unit drain with gravity flow. Do not place the Quest
DRY
150 directly on structural building members without vibration absorbers or unwanted noise may result.
The Quest
DRY
150 may be suspended with steel hanger straps (plumbers tape) or a suitable alternative from
structural members, unit must be supported from underneath. Don't hang from sides or ends. Remember
to place a drain pan under the unit if it is suspended above a finished area or above an area where water
leakage could cause damage.
The Quest
DRY
150 should be located near the existing air handling system to minimize the required duct
work for connecting the Quest
DRY
150 to the existing air handling system. The controls for the Quest
DRY
150 are remote from the unit and must be located in the space that is to be conditioned. The controls are
low voltage (24 volt) and should be connected to the Quest
DRY
150 with low voltage thermostat cable.
If fresh air ventilation is desired, thought should be given to the location for the fresh air ducting. A 6" round
insulated duct will have to be installed on the Quest
DRY
150 and run to the outside of the structure to
bring in fresh air. Use an 8" insulated round duct for lengths of more than 50 feet or if more than 100 CFM is
needed. Consult local codes for necessary distances from exhaust ports when installing fresh air return.
3.2 Electrical Requirements
WARNING: DO NOT ALLOW THE YELLOW LEAD FROM THE QUEST
DRY
150 TO CONTACT THE RED
LEAD OR WHITE LEAD FROM THE Quest
DRY
150 OR DAMAGE TO THE TRANSFORMER WILL RESULT.
The Quest
DRY
150 plugs into a common grounded outlet. It draws around 6.9 Amps under normal
operating conditions. If used in a wet area (pool, spa room, or basement prone to flooding), a ground fault
interrupter protected circuit is required.
Install the remote control panel in a central area of the structure where it will sense the relative humidity
of the structure accurately. Do not install the control panel where it may not accurately sense the relative
humidity such as near HVAC supply registers, near exterior doors, or near a pool or spa. The installer must
supply the wiring between the Quest
DRY
150 and the control panel. Be sure to safely route the control
wiring to prevent damage during installation. Be careful not to cross the wires when connecting the Quest
DRY
150 and the remote control panel or damage to the transformer may result.
The remote controls of the Quest
DRY
150 are powered by a low voltage circuit (24 Vac) and must
NEVER contact or be connected to a high voltage circuit. The control wires leaving the Quest
DRY
150
and the remote control panels are numbered and color-coded to prevent confusion. Some of the control
wires leaving the Quest
DRY
150 may not be used with certain control panels and should be left safely
disconnected with wire nuts taped onto the stripped ends. Be sure to consult the electrical schematic in this
manual or inside the access panel of the Quest
DRY
150 before making the control connections.
3.3 Condensate Water Removal
Condensate drains by gravity via the drain port. Use 3/4"
male NPT PVC pipe. Route drain pipe to drain. Install a trap
if possible. Take care when installing drain pipe to drain
port. Use an adjustable wrench to secure the drain port. An
optional condensate pump kit may be installed if a lift is
required to dispose of the condensate. The condensate pump
kit can be ordered directly from the factory. See the optional
parts list for information on the kit.
1.00"
External drain trap on unit
is recommended
FOR HVAC INSTALLER ONLY
