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ELECTRICAL CONNECTIONS
Make wiring connections to the unit as indicated on en-
closed wiring diagram. As with all gas appliances using
electrical power, this Furnace shall be connected into a
permanently live electric circuit.
that Furnace be provided with a separate "circuit pro-
tection device" electric circuit. The Furnace must be
electrically grounded in accordance with local codes or
in the absence of local codes with the National Electri-
cal Code, ANSI/ NFPA 70 or CSA C22.1 Electrical Code,
if an external electrical source is utilized. The inte-
grated Furnace control is polarity sensitive. The
hot leg of the 120V power supply must be connected to
the black power lead as indicated on the wiring dia-
gram. Provision for hooking up a humidifier is provided
on the integrated control.
Refer to the SERVICE FACTS literature and unit wiring
diagram attached to furnace.
GAS PIPING
▲
WARNING
!
DO NOT USE SEMI-RIGID METALLIC GAS CONNEC-
TORS (FLEXIBLE GAS LINES) WITHIN THE FURNACE
CABINET.
FAILURE TO FOLLOW THIS WARNING COULD RESULT
IN PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH.
The following warning complies with State of California law, Proposition 65.
▲
WARNING
!
Hazardous Gases!
Exposure to fuel substances or by-products of incomplete
fuel combustion is believed by the state of California to
cause cancer, birth defects, or other reproductive harm.
▲
WARNING
!
EXPLOSION HAZARD!
PROPANE GAS IS HEAVIER THAN AIR AND MAY
COLLECT IN ANY LOW AREAS OR CONFINED
SPACES. IF THE GAS FURNACE IS INSTALLED IN A
BASEMENT, AN EXCAVATED AREA OR A CONFINED
SPACE, IT IS STRONGLY RECOMMENDED TO CON-
TACT A GAS SUPPLIER TO INSTALL A GAS DETECT-
ING WARNING DEVICE IN CASE OF A GAS LEAK.
NOTE: The manufacturer of your furnace does NOT test
any detectors and makes no representations regarding
any brand or type of detector.
▲
WARNING
!
EXPLOSION
ODORANT FADE MAY MAKE THE GAS UNDETECT-
ABLE EXCEPT WITH A WARNING DEVICE. IF THE
GAS FURNACE IS INSTALLED IN A BASEMENT, AN
EXCAVATED AREA OR A CONFINED SPACE, IT IS
STRONGLY RECOMMENDED TO CONTACT A GAS
SUPPLIER TO INSTALL A GAS DETECTING WARN-
ING DEVICE IN CASE OF A GAS LEAK.
18-CD25D1-2
NOTE: The manufacturer of your furnace does not test
any detectors and makes no representations regarding
any brand or type of detector.
It is recommended
PIPE
SIZE
1-1/4
This table is based on pressure drop of 0.3 inch W.C. and 0.6 SP.GR. gas
Use a backup wrench on the Gas Valve when installing
gas piping to prevent damage to the Gas Valve and
Manifold Assembly.
The installation of piping shall be in accordance with
piping codes and the regulations of the local gas com-
pany. Pipe joint compound must be resistant to the
chemical reaction with liquefied petroleum gases.
Refer to piping Table 6, for delivery sizes. Connect gas
supply to the unit, using a ground joint union and a
manual shut-off Valve as shown in Figure 31. National
codes require a condensation drip leg to be installed
ahead of the controls as shown in Figures 31 & 32.
The Furnace and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.5 kPa).
The Furnace must be isolated from the gas supply pip-
ing by closing its individual manual shut-off Valve dur-
ing any pressure testing of the gas supply piping system
at test pressures equal to or less than 1/2 psig (3.5 kPa).
NOTE: Maximum pressure to the Gas Valve for natural
HAZARD!
gas is 13.8" W.C. Minimum pressure is 5.0" W.C. Maxi-
mum pressure to the Gas Valve for propane is 13.8"
W.C. Minimum pressure is 11.0" W.C.
All gas fittings must be checked for leaks using a soapy
solution before lighting the Furnace. DO NOT CHECK
WITH AN OPEN FLAME!
Installer's Guide
TABLE 6
NATURAL GAS ONLY
TABLE OF CUBIC FEET PER HOUR OF GAS
FOR VARIOUS PIPE SIZES AND LENGTHS
LENGTH OF PIPE
10
20
30
1/2
132
92
73
3/4
278
190
152
1
520
350
285
1050
730
590
TABLE 7
ORIFICE SIZES
INPUT
NUMBER
RATING
OF
BTUH
BURNERS
60,000
3
80,000
4
100,000
5
120,000
6
▲
CAUTION
!
40
50
60
70
63
56
50
46
130
115
105
96
245
215
195
180
520
440
400
370
MAIN BURNER ORIFICE
DRILL SIZE
NAT. GAS
LP GAS
45
56
45
56
45
56
45
56
31
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