Quest H5
Installation, Operation and Maintenance Instructions
6
1-877-420-1330
www.QuestClimate.com
info@QuestClimate.com
Airflow on high speed with all filters clean and no ducting is slightly over 500 CFM. The unit can be run with very dirty
filters and virtually no flow without harming the unit. The operator’s decision to change filters should be based on filter
cost vs. the unit’s filtering effectiveness. If airflow is 250 CFM vs. 500 CFM, the unit will filter particles from a space at
half the rate. The operator must judge if that is acceptable.
If the operator determines the filters should be changed due to low airflow, it is most economical to change them in the
following order:
Change the pre-filter (top) first. This is the least expensive filter. Recheck the airflow. If the airflow is acceptable, no
other filters need to be changed.
If the airflow is still too low, the HEPA filter must be changed. To remove the HEPA filter, follow these steps:
1. Loosen the eight screws one revolution
2. Rotate all eight clips out of the way.
3. Remove old filter.
4. Installing the new filter is the reverse of these instructions
4.2B Optional Activated Carbon/Potassium Permanganate Filters
Optional gas phase filters are available from Therma-Stor. They use a blend of activated carbon and potassium
permanganate. This blend removes the vast majority of gaseous contaminants encountered in most filtering applications.
The activated carbon removes the heavier volatile organics while the potassium permanganate removes lower molecular
weight contaminants. This is well suited to the smoke odors present after fire damage.
The life of the media blend depends upon both the hours used and the contamination level. Another advantage of the
blended media versus activated carbon only is that part of the blend changes color as it loads up with contaminants. It
starts out black, then turns pink, then brown, and finally white. It is best changed when it passes the brown stage and
begins to turn white. It has lost most of its effectiveness at that point.
The filter is the same size as the pleated fabric filter. Install it in place of the pleated fabric filter.
5. Service
CAUTION: Servicing the Quest H5 HEPA System with its high voltage circuitry presents a health
hazard that could result in death, serious bodily injury, and/or property damage. Disconnect the
appliance from the power supply before servicing. Only qualified service people should service this
unit.
5.1 Warranty
A warranty certificate has been enclosed with this unit. Read it before any repair is initiated. If a warranty repair is
required, call the factory first at 1-800-533-7533 for warranty claim authorization and technical assistance.
Optional Parts
4024936
Duct, Lay Flat, 14” x 250’
