5
Install this furnace only in a location and position as specified in
LOCATION and INSTALLATION sections of these instructions.
Combustion products must be discharged outdoors. Connect this
furnace to an approved vent system only, as specified in the
Combustion Air and Vent piping sections of these instructions.
Never test for gas leaks with an open flame. Use a commercially
available soap solution made specifically for detection of leaks to
check all connections as specified in the GAS PIPING section of
these instructions.
Always install the furnace to operate within the furnace’s
intended rise range with a duct system which has an external
static pressure within the allowable range as specified in the SET
TEMPERATURE RISE section of these instructions.
When a furnace is installed so that supply ducts carry air
circulated by the furnace to areas outside the space containing the
furnace, the return air shall also be handled by ducts sealed to the
furnace casing and terminating outside the space containing the
furnace.
A gas--fired furnace for installation in a residential garage must be
installed as specified in the Hazardous Locations section of these
instructions and Fig. 5.
The furnace may be used for construction heat provided that the
furnace installation and operation complies with the first
CAUTION in the LOCATION section of these instructions.
This gas furnace may be used for construction heat provided that:
S
The furnace is permanently installed with all electrical
wiring, piping, air filters, venting and ducting installed
according to these installation instructions. A return air
duct is provided, sealed to the furnace casing, and ter-
minated 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.
S
The furnace is controlled by a thermostat. It may not be
“hot wired” to provide heat continuously to the struc-
ture without thermostatic control.
S
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 en-
trainment of drywall dust into combustion air, which
can cause fouling and plugging of furnace components.
S
The temperature of the return air to the furnace is main-
tained between 55
_
F (13
_
C) and 80
_
F (27
_
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 instruc-
tions.
S
The air temperature rise is within the rated rise range on
the furnace rating plate, and the firing rate has been set
to the nameplate value.
S
The filters used to clean the circulating air during the
construction process must be either changed or thor-
oughly cleaned prior to occupancy.
S
The furnace, ductwork and filters are cleaned as neces-
sary to remove drywall dust and construction debris
from all HVAC system components after construction
is completed.
S
After construction is complete, verify furnace operating
conditions including ignition, input rate, temperature
rise and venting, according to the manufacturer’s in-
structions.
If this furnace is installed with a direct--vent (combustion air and
flue) system, a factory accessory termination kit must be installed.
In a direct--vent system, all air for combustion is taken directly
from the outside atmosphere and all flue products are discharged
to the outside atmosphere. See furnace and factory accessory
termination kit instructions for proper installation.
These furnaces are shipped with the following materials to assist
in proper furnace installation. These materials are shipped in the
main blower compartment.
Installer Packet Includes:
Installation, Start---up, and Operating Instructions
Service and Maintenance Instructions
User’s Information Manual
Warranty Certificate
Loose Parts Bag includes:
Quantity
Collector Box or Condensate trap extension tube
1
Inducer housing drain tube
1
1/2---in CPVC street elbow
2
Drain tube coupling
1
Drain tube coupling grommet
1
Gas line grommet
1
Vent pipe grommet
1
Combustion---air pipe grommet
1
Gas line entry hole filler plug
1
Power entry hole filler plug
2
Condensate trap hole filler plug
3
Vent and combustion---air intake hole filler plug
2
Combustion---air pipe perforated disk assembly
1
355C
A
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