Installation Guide

8
I&O manual
8
I&O manual
6. INSTALLATION
Fig. 5 - Removing Bottom Closure Panel
Fig. 6 - Upflow Application-Setting Equipment
6.1 Upflow Installation
Upflow Installation
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 may be installed in an upflow position or horizontal
on either the left or right side panel. Do not install this furnace on
its back. (see Fig 5-7).
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.
Tilt or raise furnace and remove the screw holding bottom
filler panel. (See Fig. 5.)
Remove bottom closure panel.
1.
2.
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
Side Return Air Inlet
Tilt the unit slightly (minimum 1/2＂(12.7mm) to maximum of 3/4＂(19mm))
from back to front to aid in the draining of the heat exchanger.
1/2”~3/4”
FRONT VIEW SIDE VIEW