MORTEX
PRODUCTS
INC
FORT
WORTH,
TX
76106
Page
5
checked every month and replaced as needed. Figures 2 and 3
indicate the location of the air filters if you have a louvered
return air door.
Figure 2: Return Air Louvered Door Air Filter Location
Figure 3: Return Air Louvered Door 20” x 20” x 1” Air
Filters
Return Air Grille Air Filters
Follow these easy steps to replace the filters located in the
return air grille:
1.
Follow the procedure “
To Turn Off the Appliance”
in
the Start Up and Shutdown Instructions section of these
instructions.
2.
Pull on the top of the return air louvered door (upper
door) until the door strike is removed from the door latch.
3.
Let the top of the door fall towards you then lift up
slightly pulling towards you and set the door on the floor.
4.
Turn the door upside down and pull the bottom frame out
of the door to gain access to the air filters.
5.
Remove the air filters. These filters are disposable filters.
DO NOT attempt to clean the filters and reuse them.
6.
Remove the new pleated air filters from the plastic wrap
they come in.
7.
Slide the air filters in place in the door so both air filters
are installed as shown in Figure 3.
8.
Replace the bottom door frame.
9.
Lift the door up to the cooling cabinet and align the two
tabs on the bottom of the door with the two slots on the
center shelf. Refer to Figure 6.
10.
Push the upper door forward and tighten with the thumb
screw until the door is secured to the cabinet. Refer to
Figure 6.
11.
Follow the instructions to “
Turn On / Start the
Appliance”
in the Start Up and Shutdown section of
these instructions.
Coil Cabinet Top Air Filters
Follow these easy steps to replace the filters located in the top
of the coil compartment:
1.
Follow the procedure “
To Turn Off the Appliance”
in
the Start Up and Shutdown Instructions section of these
instructions.
2.
Remove the thumb screw by turning it counter clockwise.
3.
Let the top of the door fall towards you then lift up
slightly pulling towards you, then set the door on the
floor.
4.
Remove the air filter at the top of the coil cabinet. The
20” x 24” x 1” filter is a disposable filter. DO NOT
attempt to clean the filter and reuse it. Refer to Figure 4
for filter location.
5.
Remove the new 20” x 24” x 1” pleated air filter from the
plastic wrap they come in.
6.
Slide the air filter into the filter rack at the top of the coil
cabinet as shown in Figure 4.
7.
Lift the door up to the cooling cabinet and align the two
tabs on the bottom of the door with the two slots on the
furnace top cover. Refer to Figure 6.
8.
Push the upper door forward until aligned with the cabinet
top flange. Insert the thumb screw onto the hole and
secure by turning it clockwise. Refer to Figure 6.
9.
Follow the “
Turn On / Start the Appliance”
in the Start
Up and Shutdown Instructions section of these
instructions.