Bryant GAMA 331JAV User Manual download pdf (Page 11)

→ Fig. 14—Unit Wiring Diagram

A97508

LEGEND

ALS1 AUXILIARY LIMIT SWITCH, OVERTEMP. MANUAL RESET, SPST (N.C.)

ALS2 AUXILIARY LIMIT SWITCH, OVERTEMP. AUTO RESET, SPST (N.C.)

BHI / LOR BLOWER MOTOR SPEED CHANGE RELAY, SPDT

BHT / CLR BLOWER MOTOR SPEED CHANGE RELAY, SPDT

BLWM BLOWER MOTOR, 4 or 5 -SPEED, PERMANENT-SPLIT-CAPACITOR

BLWR BLOWER MOTOR RELAY, SPST (N.O.)

CAP CAPACITOR

CPU MICROPROCESSOR AND CIRCUITRY

DSS DRAFT SAFEGUARD SWITCH (N.C.)

EAC-1 ELECTRONIC AIR CLEANER CONNECTION (115 VAC, 1 AMP MAX.)

EAC-2 ELECTRONIC AIR CLEANER CONNECTION (COMMON)

FRS1 FLAME ROLLOUT SWITCH OVERTEMP. MANUAL RESET, SPST (N.C.)

FRS2 FLAME ROLLOUT SWITCH OVERTEMP. MANUAL RESET, SPST (N.C.)

FSE FLAME-PROVING SENSOR ELECTRODE

FU1 FUSE, 3 AMP, AUTOMOTIVE BLADE TYPE, FACTORY INSTALLED

FU2 FUSE, FIELD INSTALLED

GV GAS VALVE, REDUNDANT LOW-HEAT OPERATORS, 2-STAGE

HPS HIGH-HEAT PRESSURE SWITCH, SPST (N.O.)

HPSR HIGH-HEAT PRESSURE SWITCH RELAY, SPST (N.C.)

HSI HOT-SURFACE IGNITER (115 VAC)

HSIR HOT-SURFACE IGNITOR RELAY, SPST (N.O.)

HUM 24VAC HUMIDIFIER CONNECTION (0.5 AMP. MAX.)

IDM INDUCED DRAFT MOTOR, 2-SPEED, SHADED-POLE

IDR INDUCER MOTOR RELAY, SPST (N.O.)

IHI / LOR INDUCER MOTOR SPEED CHANGE RELAY, SPDT

ILK BLOWER DOOR INTERLOCK SWITCH, SPST (N.O.)

JB JUNCTION BOX

LED LIGHT-EMITTING DIODE FOR STATUS CODES

LGPS LOW GAS-PRESSURE SWITCH, SPST (N.O.)

LPS LOW-HEAT PRESSURE SWITCH, SPST (N.O.)

LS LIMIT SWITCH, OVERTEMPERATURE-AUTO RESET, SPST (N.C.)

MGVR MAIN GAS VALVE RELAY, DPST (N.O.)

1 = VALVE

2 = HUMIDIFIER

PL1 12-CIRCUIT CONNECTOR

PL2 9-CIRCUIT CONNECTOR

PL3 3-CIRCUIT IDM CONNECTOR

PL6 2-CIRCUIT HSI CONNECTOR

SW1 HIGH-HEAT-ONLY SWITCH, SPST (MANUAL)

SW2 LOW-HAT-ONLY SWITCH, SPST (MANUAL)

SW3 & 4 BLOWER-OFF DELAY SETTING SWITCHES,

SPST (MANUAL)

TJ TWINNING JUMPER, SPDT FOR MASTER OR

SLAVE STATUS (MANUAL CHANGE OVER)

TRAN TRANSFORMER-115VAC/24VAC

TWIN/TEST 1-CIRCUIT TWINNING BUSS CONNECTOR,

ALSO STATUS CODE RECALL

JUNCTION

TERMINAL

CONTROL TERMINAL

FACTORY POWER WIRING (115VAC)

FACTORY CONTROL WIRING (24VAC)

FIELD POWER WIRING (115VAC)

FIELD CONTROL WIRING (24VAC)

CONDUCTOR ON CONTROL

FIELD WIRING SCREW TERMINAL

FIELD GROUND

EQUIPMENT GROUND

FIELD SPLICE

PLUG RECEPTACLE

NOTES:

324459-101 REV. A

1. Use only copper wire between the disconnect switch and the unit.

2. If any of the original wire, as supplied, must be replaced, use the

same or equivalent type wire.

3. Inducer (IDM) and blower (BLWM) motors contain internal auto-reset

thermal overload switches.

4. Blower motor speed selections are for average conditions. See

Installation Instructions for details on optimum speed selection.

5. Replace only with a 3-AMP fuse.

6. Auxiliary limit switches (ALS1 & 2) used on some horizontal and

some downflow models.

7. This wire must be connected to furnace sheet metal for

control to prove flame.

8. Factory connected when LGPS not used.

RED

FRS2

RED

FRS1

(WHEN USED)

ALS1

DSS

ORN

LGPS

YEL

NOTE #8

LPS

NOTE #8

(WHEN USED)

RED

YEL

ORN

(WHEN USED)

NOTE #6

ALS2

ORN

SWITCH

HEAT

SET-UP

SWITCH

NORM

HI HT

LO HT

OFF

BLOWER-

OFF DELAY

(SEC.)

SWITCH

90 SEC

135 SEC

180 SEC

225 SEC

OFF

2-STAGE

FURNACE

CONTROL

FACTORY

SETTINGS

OFF

BLU

BLOWER-OFF DELAY

LOW-HEAT ONLY

HIGH-HEAT ONLY

RED

ORN

W2 Com

24V

W/W1 Y/Y2 R G HUM

LED

TWIN

TEST

11 10

GRN

GRY

BRN

WHT

BLK

GRY

YEL

321

WHT

FSE

BLK

GRY

BRN

HPS

BRN

BLU

GRN

IDM

HSI

GRN

ILK

WHTPL6

RED

BLK

WHT

BLK

WHT

123

PL3

WHT

BLK

RED

PL2

PR1 PR2

L1 L2

COMMON

HI-COOL

HI-GAS

HEAT

EAC-2

EAC-1

LO-GAS

HEAT

SPARE

SEC1

FU1

SEC2

NOTE #4

BLWM

BRN

CAP

WHT

BLK

TRAN

RED

BLU

WHT

BLK

GRN

FUSED DISCONNECT

SWITCH (WHEN REQ’D)

NOTE #1

BLK

WHT

GRN

FU2

CONNECTION DIAGRAM

BLWR

TO 115VAC FIELD DISCONNECT SWITCH

NOTE #1

EQUIPMENT GROUND

LO-GAS-HEAT

HI-GAS-HEAT

SPARE

NOTE #4

COMMON

HSIR

EAC-1

SCHEMATIC DIAGRAM (NATURAL GAS & PROPANE)

EAC-2

HSI

PL2

PR2

115VAC

PR1

TRAN

24VAC

IDR

ILK

IDM

BLWM

BHI / LOR

BHT / CLR

CAP

BRN

PL6

IHI / LOR

SEC1

FU1

NOTE #5

COM

HPSR

N/A

HI-COOL

PL3

SEC2

ALS1

DSS

ALS2

FRS1

(WHEN USED)

FRS2

N/A

MGVR-2

NOTE #8 LPS

(WHEN USED)

TWIN

TEST

SLAVE

MASTER

W/W1

HUM

TWINNING

JUMPER

Y/Y2

MGVR-1

NOTE #8

HPS

N/A

FSE

NOTE#7

PL1

COMPONENT TEST

To initiate the component test sequence with no thermostat inputs and with all inducer Post-Purge and Blower-Off Delay periods completed, short the "TWIN/TEST" terminal to the "

COM" terminal for about two seconds. The control will

turn ON the inducer motor Low-Speed, inducer motor High-Speed, HSI, blower motor Low-Gas-Heat Speed, blower motor High-Gas-Heat Speed, and blower motor High-Cool Speed for 7-15 seconds each. Neither the gas valve nor the humidifier will be

turned ON.

CPU

LGPS

SW1

ORN

SW4

SW3

SW2

9. Symbols are an electrical representation only.

10. BLOWER-ON DELAY: Gas heating 45 seconds,

Cooling/Heat Pump 2 seconds.

11. Cooling/Heat Pump BLOWER-OFF DELAY is 90

seconds.

12. IGNITION-LOCKOUT will occur after four consecutive

unsuccessful trials-for-ignition. Control will automatically

reset after three hours.

13. Control must be grounded at pin 10 of 12-pin connector.

14. NA - Not Applicable

15. Spare terminal and wire not available on some

applications. Insulate connector if not available.

RED

MED LO

BLU

COM WHT

BLK

YELMED HI

MED

COM

MED

MED LO

NOTE #15

ORN

SPARE

MED HI

SPARE

BLU

NOTE #15

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