Klimaire GM80S Series - Manual (Page 10)

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I&O manual
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I&O manual
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Fig. 5 - Removing Bottom Closure Panel
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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:
This furnace can be installed for upflow, downflow and horizonal
positions (see Fig 12-18).
NOTE: For downflow applications, this furnace is approved for use
on combustible flooring when anyone of the following 3 accessories
are used:
NOTE: It is recommended that the supply-air duct flanges be
completely folded over or removed from furnace when installing the
furnace on a factory-supplied cased coil or coil box.
To remove the supply-air duct flange, use wide duct pliers or hand
seamers to bend flange Be careful of sharp edges.
Bottom Return Air Inlet
Do not use side return openings in downflow configuration.
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. See 6.1 and Fig. 5 for bottom closure
removal.
Special Base
Cased Coil Assembly
Coil Box
Bottom 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.
Tilt or raise furnace and remove the screw holding bottom
filler panel. (See Fig. 5.)
Remove bottom closure panel.
1.
2.
Determine application being installed from Table 2.
Construct hole in floor per Table 2 and Fig. 6.
Construct plenum to dimensions specified in Table 2 and Fig. 6.
If down flow subbase is used, install as shown in Fig. 7. If Coil
Assembly or Coil Box is used, install as shown in Fig. 8. 1.
2.
3.
4.
Fig. 6 - Floor and Plenum Opening Dimensions
CAUTION
Improper use or installation of this furnace may cause prema-
ture furnace component failure.
This gas furnace may be used for heating buildings under
construction provided that:
- The furnace is permanently installed with all electrical wiring,
piping, venting and ducting installed according to these installa-
tion instructions. A return air duct is provided, sealed to the
furnace casing, and terminated outside the space containing
the furnace. This prevents a negative pressure condition as
created by the circulating air blower, causing a flame rollout
and/or drawing combustion products into the structure.
- The furnace is controlled by a thermostat. It may not be "hot
wired" to provide heat continuously to the structure without
thermostatic control.
-Clean outside air is provided for combustion. This is to
minimize the corrosive effects of adhesives, sealers and other
construction materials. It also prevents the entrainment of
drywall dust into combustion air, which can cause fouling and
plugging of furnace components.
- The temperature of the return air to the furnace is maintained
between 60°F (16°C) and 85°F (29°C), with no evening setback
or shutdown. The use of the furnace while the structure is under
construction is deemed to be intermittent operation per our
installation instructions.
- The air temperature rise is within the rated rise range on the
furnace rating plate, and the gas input rate has been set to the
nameplate value.
- The filters used to clean the circulating air during the construc-
tion process must be either changed or thoroughly cleaned
prior to occupancy.
- The furnace, ductwork and filters are cleaned as necessary to
remove drywall dust and construction debris from all HVAC
system components after construction is completed.
- Verify proper furnace operating conditions including ignition,
gas input rate, air temperature rise, and venting according to
these installation instructions.
PERSONAL INJURY AND/OR PROPERTY DAMAGE
HAZARD
BOTTOM CLOSURE PANEL
BOTTOM FILLER
PANEL
SCREW
A
PLENUM
OPENING
FLOOR
OPENING
C
B D
Side Return Air Inlet