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Fabricar: Thermo Products Tamaño del archivo: 1.02 mb Nombre del archivo: Idioma del manual:

: Shut off the power to the furnace before removing blower compartment door to avoid injury from moving parts. A. ANNUAL INSPECTION The homeowner must have this furnace professionally inspected at the beginning of each heating season by a qualified heating contractor to ensure proper operation. 11 All installations and services must be performed by qualified service personnel. NOTICE: This furnace has been shipped from the factory with a permanently lubricated circulating air blower motor. Any maintenance to this blower motor is to be performed only by a qualified heating contractor. B. FILTER MAINTENANCE PROCEDURE 1. The return air filter provided with this unit is a re-useable type filter. This filter should be inspected monthly. When dirty, the filter must be cleaned or replaced, if necessary, to assure proper furnace operation. Follow the cleaning, removal and replacement procedure below. NOTICE: If the furnace is installed in a home or structure being remodeled, dust levels may be much higher than normal The filter must be inspected daily and cleaned as needed until dusty conditions have been eliminated. Any replacement motors not obtained through Thermo Products should be lubricated according to the motor name plate. : This furnace is not to be used for temporary heating of buildings or structures under construction. UPFLOW FURNACE (CHX1/CHB1/MHA1) The filter rack or drop chute will be located between the return air plenum and the return air opening of the furnace (See Figure 3). Slide dirty filter out of the filter rack. Clean the filter by vacuuming, rinsing with tap water, hosing or dipping in an ordinary detergent solution. Replace the completely dry filter in the rack. The mesh side of the filter must be installed towards the furnace after cleaning. COUNTERFLOW FURNACE (CDX1/CDB1/MDA1) TURN OFF POWER TO FURNACE. The filter rack will be located on top of the furnace inside the return air duct using either a V-rack or a drop chute similar to one shown for the CHX1 in Figure 3. To change filter with a front load type drop chute, follow the instructions for an upflow furnace. To change filters using the V-rack, remove the furnace front door and remove the filters through the blower opening (or in the event access slots are provided in the plenum, pull the filters directly out through these slots). Clean filters by vacuuming, tap water rinsing, hosing or dipping in an ordinary detergent solution. After cleaning, replace completely dry filter, mesh side down on the filter rack on the top of the furnace. Replace front door. Turn on power to furnace. 12 All installations and services must be performed by qualified service personnel. Figure 4. FILTER REPLACEMENT See Table 1 for minimum heating filter areas required for the different types of filters available should the filter used require replacement. If the unit is equipped with cooling, contact your installer or a qualified service person to determine the minimum filter area required for the...

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