Tempstar F8MTL, Руководство по установке

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10 441 01 2101 05
Specifications are subject to change without notice.
Combination of Indoor and Outdoor Air
1. Indoor openings shall comply with the Indoor
Combustion Air Method below and,
2. Outdoor openings shall be located as required in the
Outdoor Combustion Air Method mentioned
previously and,
3. Outdoor openings shall be sized as follows:
a. Calculate the Ratio of all Indoor Space volume divided
by required volume for Indoor Combustion Air
Method below.
b. Outdoor opening size reduction Factor is 1 minus the
Ratio in a. above.
c. Minimum size of Outdoor openings shall be the size
required in Outdoor Combustion Air Method above
multiplied by reduction Factor in b. above. The
minimum dimension of air openings shall be not less
than 3 in. (80 mm).
INSTALLATION
UPFLOW INSTALLATION
Bottom Return Air Inlet
These furnaces are shipped with bottom closure panel
installed in bottom return − air opening. Remove and discard
this panel when bottom return air is used. To remove bottom
closure panel, perform the following:
1. Tilt or raise furnace and remove 2 screws holding
bottom filler panel. (See Figure 9)
2. Rotate bottom filler panel downward to release holding
tabs.
3. Remove bottom closure panel.
4. Reinstall bottom filler panel and screws.
Side Return Air Inlet
These furnaces are shipped with bottom closure panel
installed in bottom return − air opening. This panel MUST be in
place when only side return air is used.
NOTE : Side return − air openings can be used in UPFLOW
and most HORIZONTAL configurations. Do not use side
return − air openings in DOWNFLOW configuration.
Figure 9 − Removing Bottom Closure Panel
BOTTOM
FILLER PANEL
BOTTOM
CLOSURE
PANEL
Leveling Legs (If Desired)
In upflow position with side return inlet(s), leveling legs may
be used. (See Figure 10) Install field − supplied, 5/16 x 1 − 1/2
in. (8 x 38 mm) (max) corrosion − resistant machine bolts,
washers and nuts.
NOTE : Bottom closure must be used when leveling legs are
used. It may be necessary to remove and reinstall bottom
closure panel to install leveling legs. To remove bottom
closure panel, see item 1 in Bottom Return Air Inlet section in
Step 1 above.
To install leveling legs:
1. Position furnace on its back. Locate and drill a hole in
each bottom corner of furnace. (See Figure 10)
2. For each leg, install nut on bolt and then install bolt and
nut in hole. (Install flat washer if desired.)
3. Install another nut on other side of furnace base.
(Install flat washer if desired.)
4. Adjust outside nut to provide desired height, and
tighten inside nut to secure arrangement.
5. Reinstall bottom closure panel if removed.
Figure 10 − Leveling Legs
1 3 /
4
″
1 3 /
4
″
1 3/
4
″
1 3/
4
″
5/
16
″
5 /
16
″
5/
16
″
5/
16
″
(44mm)
(8mm)
(44mm)
(8mm)
(8mm)
(8mm)
(44mm)
(44mm)
A89014
DOWNFLOW INSTALLATION
NOTE
: For downflow applications, this furnace is approved
for use on combustible flooring when any one of the following
are used:
Downflow combustible factory − approved floor subbase
Coil model numbers EAM4X, EDM4X, EMA4X, END4X
or ENW4X
Coil casing model number NAEA
1. Determine application being installed from Table 4.
2. Construct hole in floor per Table 4 and Figure 13.
3. Construct plenum to dimensions specified in Table 4
and Figure 13.
4. If downflow subbase is used, install as shown in
Figure 11. If coil model numbers END4X, ENW4X or
coil casing model number NEAE is used, install as
shown in Figure 12.
NOTE : It is recommended that the perforated supply − air duct
flanges be completely folded over or removed from furnace
when installing the furnace on a factory
− supplied cased coil
or coil casing. To remove the supply − air duct flange, use wide
duct pliers or hand seamers to bend flange back and forth
until it breaks off. Be careful of sharp edges. (See Figure 14)