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F96CTN and G96CTN (Series A): Installation, Start-up, Operating, Service and Maintenance Instructions
during supply pipe pressure test. After all connections have been made,
purge lines and check for leakage at furnace prior to operating furnace.
The gas supply pressure shall be within the maximum and minimum
inlet supply pressures marked on the rating plate with the furnace
burners ON and OFF.
Gas entry can be from left or right side, or top panel. See
Fig.
30.
Gas Pipe Grommet
For direct vent (2-pipe) applications, the knockout for the gas pipe must
be sealed to prevent air leakage. Remove the knockout, install the
grommet in the knockout, then insert the gas pipe. The grommet is
included in the loose parts bag. See
ELECTRICAL CONNECTIONS
WARNING
!
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings could result in dangerous operation,
serious injury, death or property damage.
Improper servicing could result in dangerous operation, serious injury,
death or property damage.
-
Before servicing, disconnect all electrical power to furnace.
-
When servicing controls, label all wires prior to disconnection.
Reconnect wires correctly.
-
Verify proper operation after servicing.
-
Always reinstall access doors after completing service and
maintenance.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Blower door switch opens 115-v power to control. No component
operation can occur. Do not bypass or close switch with blower door
removed.
See
Fig. 36
for field wiring diagram showing typical field 115-v wiring.
Check all factory and field electrical connections for tightness.
Field-supplied wiring shall conform with the limitations of 63_F (33_C)
rise.
VOLTS-
FURNACE SIZE
HERTZ-
PHASE
0601714
115-60-1
0801714
115-60-1
0802120
115-60-1
1002122
115-60-1
1202422
115-60-1
*. Permissible limits of the voltage range at which the unit operates satisfactorily.
†. Unit ampacity = 125 percent of largest operating component's full load amps plus 100 percent of all other potential operating components' (EAC, humidifier, etc.) full load
amps.
‡. Length shown is as measured one way along wire path between furnace and service panel for maximum 2 percent voltage drop.
**. Time-delay type is recommended.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig. 29
Fig.
29.
Table 10 – Electrical Data
OPERATING VOLTAGE
*
RANGE
Maximum*
Minimum*
127
104
127
104
127
104
127
104
127
104
ELECTRICAL SHOCK AND FIRE HAZARD
Failure to follow this warning could result in personal injury, death, or
property damage.
and
The cabinet MUST have an uninterrupted or unbroken ground
according to NEC NFPA 70 or local codes to minimize personal injury
if an electrical fault should occur. In Canada, refer to Canadian
Electrical Code CSA C22.1. This may consist of electrical wire,
conduit approved for electrical ground or a listed, grounded power cord
(where permitted by local code) when installed in accordance with
existing electrical codes. Refer to the power cord manufacturer's
ratings for proper wire gauge. Do not use gas piping as an electrical
ground.
FURNACE MAY NOT OPERATE HAZARD
Failure to follow this caution may result in intermittent furnace
operation.
Furnace control must be grounded for proper operation or else control
will lock out. Control must remain grounded through green/yellow wire
routed to gas valve and manifold bracket screw.
115-V WIRING
Furnace must have a 115-v power supply properly connected and
grounded.
NOTE: Proper polarity must be maintained for 115-v wiring. If polarity
is incorrect, control LED status indicator light will flash rapidly (Status
Code 10) and furnace will NOT operate.
Verify that the voltage, frequency, and phase correspond to that specified
on unit rating plate. Also, check to be sure that service provided by
utility is sufficient to handle load imposed by this equipment. Refer to
rating plate or
Table 10
U.S.A. Installations: Make all electrical connections in accordance with
the current edition of the National Electrical Code (NEC) NFPA 70 and
any local codes or ordinances that might apply.
Canada Installations: Make all electrical connections in accordance
with the current edition of the Canadian Electrical Code CSA C22.1 and
any local codes or ordinances that might apply.
MAXIMUM
UNIT
UNIT
†
AMPACITY
AMPS
9.3
12.6
9.3
12.6
13.6
17.9
13.7
18
13.7
18
23
WARNING
!
CAUTION
!
for equipment electrical specifications.
MAXIMUM
MINIMUM
WIRE
WIRE SIZE
LENGTH
AWG
‡
FT (M)
14
29 (9)
14
29 (9)
12
32 (9.7)
12
31 (9.7)
12
31 (9.7)
MAXIMUM FUSE
OR CKT BKR
**
AMPS
15
15
20
20
20
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