MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 5
Figure 2: Return Air Louvered Grille
Figure 3: Return Air Louvered Grille Air Filters
20” x 20” x 1” (508mm x 508mm x 25.4mm)
(2 Required)
Turning Off / Shutting Down the Furnace
1. Set the thermostat to the OFF setting.
2. Move the circuit breakers in the main electrical panel (home
circuit breaker box) to the OFF position.
NOTE: Homeowners or furnace users must not remove the
furnace control box cover. Homeowners and furnace users
should only turn the circuit breakers located on the front of the
furnace control box cover and in the main electrical panel
(home circuit breaker box) to the OFF position.
3. Remove the furnace front access panel.
4. Turn the circuit breakers located on the control box cover to the
OFF position.
5. Replace the furnace front access panel.
All appliances need maintenance at the beginning of each
heating season in order to operate properly. The annual
service must be preformed by qualified service personnel. The
homeowner is expected to perform general cleaning of the
exterior surfaces, clean dust from the louvers in the return air
grille and replacement of the air filters. Air filters must be checked
every month and replaced as needed. Homeowners/users must
be instructed as to how to replace
air filters for good preventive maintenance. Figures 2 and 3 show
the location of the air filters for applications with a coil cabinet
return air grille. Figure 5 shows the location of the air filter
applications with a coil cabinet top filter.
2. Turn off all electrical power to the appliance at the main service
disconnect box.
3. Remove the lower furnace door.
4. Turn off the circuit breakers on the appliance control box.
5. Replace the lower furnace door.
SECTION 5: HOMEOWNER/USER MAINTENANCE
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