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If a flexible connector is required or allowed by authority
having jurisdiction, black iron pipe shall be installed at
gas valve and extended a minimum of 2² ² ² ² outside furnace
casing.
4.
Use black iron or steel pipe and fittings or other pipe ap-
proved by local code.
NOTE: The use of copper tubing for gas piping is NOT approved by
the state of Massachusetts.
5.
Use ground joint unions and install a drip leg no less than 3²
long to trap dirt and moisture before it can enter gas valve.
6.
Use two pipe wrenches when making connections to pre-
vent gas valve from turning.
7.
Install a manual shut--off valve external to furnace casing
and tighten all joints securely.
Additional LP Connection Requirements
1.
Have a licensed LP gas dealer make all connections at stor-
age tank and check all connections from tank to furnace.
6. Electrical Wiring
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Electrical shock hazard.
Failure to do so can result in death, personal injury
and/or property damage.
Turn OFF electrical power at fuse box or service
panel before making any electrical connections
and ensure a proper ground connection is made
before connecting line voltage.
Power Supply Wiring
The furnace MUST be electrically wired and grounded in accor-
dance with local codes, or in the absence of local codes with the
latest edition of The National Electric Code, ANSI NFPA 70 and/or
The Canadian Electric Code CSA C22.1.
The power supply to the furnace connections must be between 104
VAC and 127 VAC during furnace operation for acceptable perfor-
mance.
Field wiring connections must be made inside the furnace connec-
tion box. A suitable strain relief should be used at the point the
wires exit the furnace casing.
Copper conductors must be used. Line voltage wires should be
sized for the input amps stated on the rating plate. Furnace should
be connected to its own separate circuit.
Thermostat
Thermostat location has an important effect on the operation of the
unit. Follow instructions included with thermostat for correct
mounting and wiring.
Low voltage connections to furnace must be made on terminal
board to fan control.
Set thermostat heat anticipator in accordance with the Technical
Support Manual.
440 01 1020 02
2.
If copper tubing is used, it MUST comply with limitation set in
National Fuel Gas Code or CGA codes.
3.
Two--stage regulation of LP gas is recommended.
Final Check
1. The furnace and the gas valve must be disconnected from the
gas supply piping system during any pressure testing of that
system at test pressures in excess of
manual shut--off valve before testing at such pressures.
2. When installation is complete, test all pipe connections for
leaks with the gas pressure less than
valve.
3.
Apply a commercial soap solution to all joints to test for
leaks. Correct any leaks indicated by bubbles.
4.
Correct even the smallest leak at once.
5.
Check for leaks at gas valve and orifice connections to the
burner manifold along with the pilot tube connections to the
valve and pilot assembly while the furnace is operating.
Optional Equipment
All wiring from furnace to optional equipment MUST conform to lo-
cal codes or, in the absence of local codes with the latest edition of
The National Electric Code, ANSI NFPA 70 and/or The Canadian
Electric Code CSA C22.1. Install wiring in accordance with
manufacturer's instructions. The wiring MUST have a minimum
temperature rating of 105° C.
Humidifier/Electronic Air Cleaner
The furnace is wired for humidifier and/or electronic air cleaner
connection.
CAUTION
Do NOT exceed 115V/0.8 amp. maximum current load for both
the EAC terminal and the HUM terminal combined.
NOTE: The humidifier will be powered when the furnace is fired
and the circulating air blower comes on. The electronic air cleaner
will be powered anytime the air circulating blower is energized.
However, the electronic air cleaner is NOT energized during con-
tinuous fan operation controlled by the electronic fan control.
Fan Control
The fan control is preset at the factory with a fixed blower ON delay
of 30 seconds in the heating mode. The blower OFF timing is pre-
set at 140 seconds. If desired, the fan OFF delay can be reset to
obtain the longest delay times while still maintaining comfort levels.
See "Furnace Wiring Diagram" .
Fan Delay DIP Switch Settings
COOL ON DELAY: 5 SEC.
COOL OFF DELAY: 90 SEC.
HEAT ON DELAY: 30 SEC.
1
/
² PSIG. Close the
2
1
/
² PSIG to the gas
2
25--23--47
29
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