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Gas Supply:
NOTE: PIPING MUST CONFORM TO STANDARDS OF THE NATIONAL BOARD OF FIRE UNDER-
WRITERS, CAN/CGA B149 AND ALL APPLICABLE GOVERNING CODES. INSTALL MANUAL MAIN
SHUT-OFF VALVE UPSTREAM OF APPLIANCE GAS TRAIN, OUTSIDE OF THE CONFINES OF THE
APPLIANCE IN ACCORDANCE WITH CURRENT INSTALLATON CODES.
1. Pipe sizing for the direct line from a N.G. meter or L.P. tank is based on a minimum 7” W.C. pressure at the meter for
natural gas; minimum 12” W.C. for L.P. gas. Pipe sizes are suggested by the following table.
INPUT IN 1000’S
MAXIMUM DISTANCE
NATURAL
L.P.
BTU/HR.
FROM METER
GAS
GAS
up to 50
50 feet
½”
½”
50 to 125
40 feet
¾”
½”
100 feet
1”
¾”
126 to 180
60 feet
1”
¾”
100 feet
1 ¼”
1”
181 to 250
30 feet
1”
¾”
120 feet
1 ¼” 1”
200 feet
1 ½”
1 ¼”
251 to 300
75 feet
1 ¼”
1”
200 feet
1 ½”
1 ¼”
301 to 400
50 feet
1 ¼” 1”
125 feet
1 ½”
1 ¼”
2. For larger installations or longer piping runs, consult gas company.
3. If more than ½ PSIG (14 in. W.C.) pressure is available, a high pressure regulator would be required. Pipe sizing may
be reduced. On heating systems with more than one duct furnace, a high gas pressure regulator is required for each
heater section
4. Refer to items (3) and (4) of INSTALLATION PRECAUTIONS.
5. Pipe joint compound should be resistant to the action of L.P gas.
6. Install a DIRT TRAP (tee, nipple, and cap) at connection to each furnace.
7. For ease of servicing, an additional union and manual gas valve should be installed adjacent to the furnace exterior.
An approved, readily accessible manual gas valve should be joined to a ground joint type union immediately upstream
and connected to the appliance manifold piping.
8. A 1/8 N.P.T. plugged tapping, accessible for test gage connection, must be installed immediately upstream of the gas
supply connection to the appliance.
9. The furnace must NOT be operated without a leak limiting orifice installed in the unit pressure regulator vent, if
applicable.
10. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of ½ PSIG.
11. The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during
any pressure testing of the gas supply piping system at test pressures equal to or less than ½ PSIG.
NOTE: CHECK ALL GAS CONNECTIONS FOR LEAKS. A SOAP SOLUTION SHOULD BE USED FOR THIS
PURPOSE. NEVER USE A TORCH OR FLAME OF ANY KIND.
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Electrical:
NOTE: UNIT MUST BE ELECTRICALLY GROUNDED AND ALL WIRING MUST BE DONE IN ACCORDANCE
WITH THE NATIONAL ELECTRICAL CODE (ANSI/NFPA #70 - “Latest Revisions”), CSA 22.1 CANADIAN
ELECTRICAL CODE AND ALL APPLICABLE GOVERNING CODES.
1. A complete wiring diagram is included with this appliance.
2. All external wiring must be run within approved weatherproof outdoor applications conduit.
3. Check specification plate on furnace for voltage and ampere requirements.
4. The power supply lines must be 14 ga. wire or larger depending on the ampere requirement of the unit.
5. If any of the original wiring or cable as supplied with the appliance is to be replaced, it must be replaced with 16 ga.
AWM 6 strand 2/64 PVC 105 CUL and CSA approved wiring.
6. Refer to items 11, 12, and 13 of INSTALLATION PRECAUTIONS.
7. A non-adjustable limit control switch is attached to the heat exchanger side and is located on the control end of the
furnace behind access panel.
8. The furnace thermostat must be installed according to the wiring diagram and a suitable site located to protect it from
tampering and damage. Do NOT expose thermostats to jarring or physical shocks either before or after installation.
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