24-V Wiring; Accessories - Payne PG9MAB Series A Installation Manual

WARNING: FIRE HAZARD
Failure to follow this warning could result in serious injury, death, or property damage.
Do not connect aluminum wire between disconnect switch and furnace. Use only copper wire. (See Fig. 32.)
Use a separate, fused branch electrical circuit containing a properly sized fuse or circuit breaker for this furnace. See Table 6 for wire size and
fuse specifications. A disconnecting means must be located within sight from and readily accessible to furnace.
NOTE: Proper polarity must be maintained for 115-v wiring. If polarity is incorrect, control center LED status indicator light will flash rapidly
and furnace will NOT operate.
WARNING: ELECTRICAL SHOCK AND FIRE HAZARD
Failure to follow this warning could result in serious injury, death, or property damage.
The cabinet MUST have an uninterrupted or unbroken ground according to NEC ANSI/NFPA 70-2002 and Canadian Electrical Code
CSA C22.1 or local codes to minimize personal injury if an electrical fault should occur. This may consist of electrical wire or conduit
approved for electrical ground when installed in accordance with existing electrical codes. Do not use gas piping as an electrical
ground.
J-BOX RELOCATION
1. Remove 2 screws holding auxiliary J-box. (See Fig. 33.)
2. Rotate J-box 180° and attach box to right side, using holes provided.
WARNING: ELECTRICAL SHOCK AND FIRE HAZARD
Failure to follow this warning could result in serious injury, death, or property damage.
If manual disconnect switch is to be mounted on furnace, select a location where a drill or fastener will not contact electrical or gas
components.
B. 24-v Wiring
Make field 24-v thermostat connections at 24-v terminal block on furnace control center. For proper cooling operation, Y wire from thermostat
MUST be connected to Y terminal on control center, as shown in Fig. 31. The 24-v terminal block is marked for easy connection of field wiring.
(See Fig. 34.) The 24-v circuit contains a 3-amp, automotive-type fuse located on furnace control center. (See Fig. 35.) Any electrical shorts of
24-v wiring during installation, service, or maintenance may cause fuse to blow. If fuse replacement is required, use only a fuse of identical size
(3 amp) and type. The control will flash code 24 when fuse needs replacement.
NOTE: Use AWG No. 18 color-coded copper thermostat wire for lengths up to 100 ft. For wire lengths over 100 ft, use AWG No. 16 wire.
C. Accessories
1. Electronic Air Cleaner (EAC)
Two quick-connect terminals marked EAC-1 and EAC-2 are provided for EAC connection. (See Fig. 35.) These terminals are energized
with 115v (1.0-amp maximum) during blower motor operation.
CAUTION: UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit component damage.
DO NOT connect furnace control HUM terminal to HUM (humidifier) terminal on Thermidistat™, Zone Controller or similar device. See
Thermidistat™, Zone Controller, thermostat, or controller manufacturer's instructions for proper connection.
ALTERNATE
FIELD
LOCATION
Fig. 33—Relocating J-Box
—31—
FACTORY
INSTALLED
LOCATION
A00212