Bryant 333B-AV-036060-AA-JA, Troubleshooting Manual

Page: 45 / 46

Fig.
12—Schematic
Diagram
for
Twinned
2-Stage
PSC
Furnaces
A94168
4 2
1 2 6 5
N/A N/A
MAKE THERMOSTAT CONNECTIONS TO ONLY THE LEFT HAND FURNACE
MAKE NO THERMOSTAT CONNECTIONS
TO RIGHT HAND FURNACE
ILK-1 ILK JB LED LGPS LPS LS MGVR PL1 PL2 PL3 PL4 PL6 PL7 PL8 PL9 SW1 SW2 SW3 & 4
*
HEAT SET-UP SWITCH
OFF
OFF
ON
ON
OFF
OFF
ON
ON
90 SEC
SWITCH
SWITCH
2
4
1
3
135 SEC 180 SEC 225 SEC BLOWER- OFF DELAY (SEC.)
NORM HI HT LO HT
TKR
BLK RED
RED
ORN
YEL WHT
ORN
RED YEL WHT
WHT RED
BLK
BLK
WHT
BLU
ORN
ORN
BLK
KEEP TWINNING JUMPER IN "MASTER" POSITION ON MASTER FURNACE.
MOVE TWINNING JUMPER TO "SLAVE" POSITION ON SLAVE FURNACE.
PASSES THROUGH HOLES IN CASINGS
FURNACE SCHEMATIC DIAGRAM
ALS-S
ILK-1
PL9
ORN
BLU
BLU
ALS-M
1 3
SLAVE AUX. BLOWER DOOR INTLK. SW., SPST-(N.O.) BLOWER DOOR INTERLOCK SWITCH, SPST-(N.O.) JUNCTION BOX LIGHT-EMITTING DIODE FOR STATUS CODES LOW GAS-PRESSURE SWITCH, SPST-(N.O.) LOW-HEAT PRESSURE SWITCH, SPST-(N.O.) LIMIT SWITCH, OVERTEMPERATURE-AUTO RESET, MAIN GAS VALVE RELAY, DPST-(N.O.) -1 = VALVE -2 = HUMIDIFIER 12-CIRCUIT CONNECTOR 9-CIRCUIT CONNECTOR 3-CIRCUIT IDM CONNECTOR 1-CIRCUIT FPS CONNECTOR 2-CIRCUIT HSI CONNECTOR 2-CIRCUIT LINE/NEUTRAL CONNECTOR IN JB 2-CIRCUIT TWINNING CONNECTOR 1-CIRCUIT TWINNING CONNECTOR HIGH-HEAT-ONLY SWITCH, SPST-(MANUAL) LOW-HEAT-ONLY SWITCH, SPST-(MANUAL) BLOWER-OFF DELAY SETTING SWITCHES, SPST-(MANUAL)
SPST-(N.O.)
MASTER AUX. LIMIT SWITCH, OVERTEMP.- MANUAL RESET, SPST-(N.C.) SLAVE AUX. LIMIT SWITCH, OVERTEMP.- MANUAL RESET, SPST-(N.C.) BLOWER MOTOR SPEED CHANGE RELAY, SPDT BLOWER MOTOR SPEED CHANGE RELAY, SPDT BLOWER MOTOR, 4-SPEED, PERMANENT-SPLIT-CAPACITOR BLOWER MOTOR RELAY, SPST-(N.O.) CAPACITOR MICROPROCESSOR AND CIRCUITRY DRAFT SAFEGUARD SWITCH ELECTRONIC AIR CLEANER CONNECTION (115 VAC 1 AMP MAX.) ELECTRONIC AIR CLEANER CONNECTION (COMMON) FLAME ROLLOUT SWITCH OVERTEMP.-MANUAL RESET, SPST-(N.C.) FLAME ROLLOUT SWITCH OVERTEMP.-MANUAL RESET, SPST-(N.C.) FLAME-PROVING SENSOR ELECTRODE FUSE, 3 AMP, AUTOMOTIVE BLADE TYPE, FACTORY INSTALLED FUSE, FIELD INSTALLED GAS VALVE-REDUNDANT LOW-HEAT OPERATORS, 2-STAGE HIGH-HEAT PRESSURE SWITCH, SPST-(N.O.) HIGH-HEAT PRESSURE SWITCH RELAY, SPST-(N.C.) HOT-SURFACE IGNITER (115 VAC) HOT-SURFACE IGNITOR RELAY, SPST-(N.O.) 24VAC HUMIDIFIER CONNECTION (.5 AMP. MAX.) INDUCED DRAFT MOTOR, 2-SPEED, SHADED-POLE INDUCER MOTOR RELAY, SPST-(N.O.) INDUCER MOTOR SPEED CHANGE RELAY, SPDT
ALS-M ALS-S BHI/LOR BHT/CLR BLWM BLWR CAP CPU DSS EAC-1 EAC-2 FRS1 FRS2 FSE FU1 FU2 GV HPS HPSR HSI HSIR HUM IDM IDR IHI/LOR
TWINNING JUMPER, SPDT FOR MASTER OR SLAVE STATUS-(MANUAL CHANGE-OVER) TWINNING KIT RELAY, SPST-(N.O.) TRANSFORMER-115VAC/24VAC 1-CIRCUIT TWINNING BUSS CONNECTOR, ALSO COMPONENT TEST JUNCTION TERMINAL CONTROL TERMINAL FACTORY POWER WIRING (115VAC) FACTORY CONTROL WIRING (24VAC) FIELD POWER WIRING (115VAC) FIELD CONTROL WIRING (24VAC) FIELD ACCESSORY WIRING (24 VAC) CONDUCTOR ON CONTROL FIELD WIRING SCREW TERMINAL FIELD GROUND EQUIPMENT GROUND FIELD SPLICE PLUG RECEPTACLE
TJ TKR TRAN TWIN/TEST
LEGEND
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 "C
OM
" 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.
NOTES:
322032-401 REV. C
SLAVE OR RH FURNACE
MASTER OR LH FURNACE
GV
GV
P
P
HI
HI
M
M
C
C
HPS
HPS
NOTE#7
NOTE#7
N/A
N/A
N/A
N/A
N/A
N/A
NOTE #6
NOTE #6
LPS
LPS
LGPS
LGPS
(WHEN USED)
(WHEN USED)
DSS
DSS
SW2
SW2
SW4
SW4
SW3
SW3
4
4
11
11
1
1
W/W1
W/W1
MASTER
MASTER
TWINNING JUMPER TJ
TWINNING JUMPER TJ
SLAVE
SLAVE
TEST
TEST
TWIN
TWIN
W2
W2
SW1
SW1
6
6
PL1
PL1
(WHEN USED)
(WHEN USED)
FRS1
FRS1
LS
LS
3
3
9
9
HUM
HUM
R
R
CPU
CPU
FSE
FSE
PL4
PL4
Y/Y2
Y/Y2
G
G
C
OM
C
OM
5
5
10
10
7
7
8
8
MGVR-2
MGVR-2
MGVR-1
MGVR-1
1 2 6 5
IHI/LOR
IHI/LOR
HPSR
HPSR
N/A N/A
FRS2
FRS2
FU1
FU1
NOTE#5
2
2
12
12
HSIR
HSIR
IDR
IDR
PL2
PL2
PL6
PL6
PL3
PL3
HSI
HSI
IDM
IDM
1
1
2
2
2
2
1
1
3
3
3
3
9
9
7
7
4
4
8
8
PR1
PR1
PR2
PR2
SEC1
SEC1
SEC2
SEC2
TRAN
TRAN
24VAC
24VAC
115VAC
115VAC
BHI/LOR
BHI/LOR
BLWM
BLWM
BRN
BRN
BRN
BRN
(LO)
(LO)
COM
COM
HI
HI
LO
LO
(MED LO)
(MED LO)
(MED HI)
(MED HI)
(HI)
(HI)
(COM)
(COM)
CAP
CAP
L2
L2
COMMON
COMMON
HEAT
HEAT
HEAT
HEAT
HI-GAS-
HI-GAS-
LO-GAS-
LO-GAS-
PARK
PARK
HI-COOL
HI-COOL
BHT/CLR
BHT/CLR
BLWR
BLWR
NOTE#4
NOTE#4
NOTE#5
EAC-1
EAC-1
EAC-2
EAC-2
L1
L1
PL7
PL7
IL
K
EQUIPMENT GROUND
EQUIPMENT GROUND
NOTE#1
NOTE#1
TO 115VAC FIELD DISCONNECT SWITCH
TO 115VAC FIELD DISCONNECT SWITCH
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. THIS WIRE MUST BE CONNECTED TO FURNACE SHEET METAL FOR CONTROL TO PROVE FLAME. 7. FACTORY CONNECTED WHEN LGPS NOT USED. 8. SYMBOLS ARE AN ELECTRICAL REPRESENTATION ONLY. 9. BLOWER-ON DELAY: GAS HEATING 45 SECONDS, COOLING OR HEAT PUMP 2 SECONDS. BLOWER-OFF DELAY: GAS HEATING 90, 135, 180, OR 225 SECONDS, COOLING OR HEAT PUMP 90 SECONDS. IGNITION-LOCKOUT WILL OCCUR AFTER FOUR CONSECUTIVE UNSUCCESSFUL TRIALS-FOR-IGNITION. CONTROL WILL AUTOMATICALLY RESET AFTER THREE HOURS. CONTROL MUST BE GROUNDED AT PIN 10 OF 12-PIN CONNECTOR. NOT USED WITH SINGLE-STAGE THERMOSTAT ADAPTIVE MODE (3 WIRES AND TKR).
NOTE#7
NOTE#7
* * *
PL8
1
22 1
10. 11. 12. 13.
IL
K
BLU
—45—