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Quest H5
3.3 Air Ducting
3.3A Inlet Ducting
Occasionally the area to be filtered is difficult to access and/or the unit cannot be located in the area. In such cases, the
air can be ducted to the unit's inlet.
A round 16" diameter flexible duct can be attached to the unit inlet. It connects by placing the wire in the duct over the
duct collar lip at one location and working over it over the lip gradually. It may be removed after use for easier transport
and storage. Flexible 16" duct is available from Therma-Stor LLC. (4028357)
3.3B Oulet Ducting
A detachable trapazoid shaped exhaust ring is supplied that will allow 10" round lay-flat plastic duct to be attached to the
Quest H5 HEPA System outlet. Lay-flat plastic ducting is available from Therma-Stor LLC. (4024935)
To attach ducting to the collar, remove the ring from the unit by pressing release tab at the top of the grill. Put the plastic
duct end through the inside of the ring. Roll the duct end outward so that it over-laps the outside of the ring. Clip the
ring back onto the exhaust grill.
3.3C Negative Air Ducting
The Quest H5 HEPA System can be used to filter and exhaust air from a space. When exhausting to outside the space,
the space will be under a slight negative pressure. This will help prevent airborne particles from leaving the space, because
the negative pressure will draw air in through openings in the space's exterior surfaces.
CAUTION: Exhausting too much air from a space with open combustion devices (e.g. furnace, fireplace or water
heater) can cause those devices to backdraft. This can contaminate the space with potentially fatal gases.
In such cases, the Quest H5 HEPA System must be used in one of the following three ways:
A. As a filtering unit only. Exhausting no air from the space and thus causing no negative pressure or backdrafting.
B. Exhausting a very limited amount of air which does not cause backdrafting. In case B, the open combustion devices
must be thoroughly checked to guarantee that they do not backdraft while the Quest H5 HEPA System is running.
C. Direct the outlet duct from the H5 HEPA System to the room with the open combustion device(s). This will
positively pressurize the room with HEPA filtered air, thus preventing backdrafting. As in case B, those combustion
devices must be checked after the H5 HEPA System is running to guarantee that they are not backdrafting.
3.4 Power/Speed Control
The power/speed switch is located on the control panel. When turned on to any speed, it powers the impeller fan.
Occasionally the impeller fan may not start on low speed. If this occurs, rotate the speed control to high speed until the
impeller fan starts, then adjust it to a lower speed.
CAUTION: Do not remove HEPA filter with the unit on. Removing the top and filters while running will expose the
dangerous rotating impeller fan. Disconnect the appliance before changing filters.
3.5 Resettable Circuit Breaker
The 12 AMP thermal response resettable circuit breaker protects the unit and devices connected to its duplex GFCI
outlet.
The circuit breaker is designed to sense the total current draw through the circuit. The circuit breaker "trips" when more
than 12 amps of electrical current are drawn through the device's power cord. Should an over-current condition occur,
the H5 on-board circuit breaker prevents nuisance visits to a remote power junction box.
1-877-420-1330
Installation, Operation and Maintenance Instructions
4
www.QuestClimate.com
info@QuestClimate.com
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