FIELD 24-VOLT WIRING

FIELD 115-, 208/230-, 460-VOLT WIRING FACTORY 24-VOLT WIRING

FACTORY 115-, 208/230-, 460-VOLT WIRING

FIVE

WIRE

THREE-WIRE

HEATING

ONLY

115-VOLT SINGLE PHASE

115-VOLT AUXILIARY

FUSED J-BOX DISCONNECT

SWITCH

(WHEN REQUIRED)

FURNACE

CONTROL

CENTER

NOTE 5

W C R G Y

W/W1

W2 NOTE

 

3

 

R

 

G

 

C

NOTE 1

 

Y/Y2

 

24-VOLT

TWO WIRE

TERMINAL

 

BLOCK

NOTES:

 

THERMOSTAT

TERMINALS FIELD-SUPPLIED FUSED DISCONNECT

208/230- OR 460-VOLT THREE PHASE

GND

GND

 

208/230-

VOLT

SINGLE PHASE

GND

GND

 

CONDENSING

UNIT

1.Connect Y or Y/Y2 terminal as shown for proper cooling operation.

2.Proper polarity must be maintained for 115-volt wiring.

3.Use W2 with 2-stage thermostat when zoning.

4.If any of the original wire, as supplied, must be replaced, use same type or equivalent wire.

5.Some thermostats require a "C" terminal connection as shown.

A96338

Fig. 22ÐHeating and Cooling Application Wiring Diagram

ELECTRIC

DISCONNECT

SWITCH

COPPER

WIRE ONLY

ALUMINUM

WIRE

A93033

CAUTION: Do not connect aluminum wire between disconnect switch and furnace. Use only copper wire.

NOTE: Proper polarity must be maintained for 115-v wiring. If polarity is incorrect, control center fault code indicator light will flash rapidly and furnace will NOT operate.

WARNING: The cabinet MUST have an uninterrupted or unbroken ground according to NEC ANSI/NFPA 70-1996 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. Failure to follow this warning could result in electric shock, fire, or death.

J-BOX RELOCATION

1.Remove 2 screws holding auxiliary J-box. (See Fig. 23.)

2.Rotate J-box 180° and attach box to right side, using holes provided.

Ð18Ð

FACTORY

 

INSTALLED

ALTERNATE

LOCATION

 

FIELD

 

LOCATION

A93051

Fig. 23ÐRelocating J-Box

CAUTION: 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.

II.24-V WIRING

Make field 24-v thermostat connections at 24-v terminal block on control center. Y wire from thermostat MUST be connected to Y terminal on control center, as shown in Fig. 22, for proper cooling operation. The 24-v terminal board is marked for easy connection of field wiring. (See Fig. 24.) The 24-v circuit contains a 3-amp, automotive-type fuse located on control center. (See Fig. 25.) 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).

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Bryant 355M-40-4, 355M-40-5 operating instructions → ÐHeating and Cooling Application Wiring Diagram, II -V Wiring

355M-40-4, 355M-40-5 specifications

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