Fig. 11—unit wiring diagram – Bryant 330JAV User Manual
Page 8
→
Fig. 11—Unit Wiring Diagram
A01365
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-HEAT-ONLY SWITCH, SPST (MANUAL)
*
SW3 & 4
BLOWER-OFF DELAY SETTING SWITCHES,
SPST (MANUAL)
*
TJ
TWINNING JUMPER, SPDT FOR MAIN OR
SECONDARY 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:
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
LS
FRS2
FRS1
(WHEN USED)
ALS1
DSS
OR
N
LGPS
YEL
NOTE #8
LPS
NO
T
E
#
8
(W
H
E
N US
E
D
)
(WHEN USED)
NOTE #6
ALS2
SWITCH
1
2
HEAT
SET-UP
SWITCH
NORM
HI HT
LO HT
*
ON
OF
F
OF
F
ON
BLOWER-
OFF DELAY
(SEC.)
SWITCH
3
4
90 SEC
135 SEC
*
180 SEC
225 SEC
ON
OF
F
OF
F
ON
2-STAGE
FURNACE
CONTROL
FA
C
T
O
R
Y
S
E
TTI
NG
S
1
2
34
ON
OF
F
3
2
1
BL
U
BLOWER-OFF DELAY
BLOWER-OFF DELAY
LOW-HEAT ONLY
HIGH-HEAT ONLY
*
W2
Com
24V
W/W1 Y/Y2
R
G
HUM
LED
S
M
TJ
TWIN
TEST
12
11
1
0
P1
WHT
32
1
9
87
FS
E
HPS
HI
P
M
IDM
HSI
ILK
JB
L1
PL6
1
2
1
2
3
PL3
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
BRN
CAP
TRAN
GV
C
FUSED DISCONNECT
SWITCH (WHEN REQ’D)
NOTE #1
BLK
WHT
GND
L2
FU2
CONNECTION DIAGRAM
L1
BLWR
TO 115VAC FIELD
DISCONNECT SWITCH
NOTE #1
LO-GAS-HEAT
HI-GAS-HEAT
SPARE
NOTE #4
COMMON
HSIR
EAC-1
EAC-2
3
1
HSI
2
9
PL2
PR2
115VAC
PR1
TRAN
24VAC
IDR
L2
ILK
IDM
BLWM
BHI / LOR
BHT / CLR
CAP
BRN
BRN
PL6
IHI / LOR
SEC1
FU1
NOTE #5
1
2
3
HI
COM
HPSR
1
5
6
2
N/A
N/A
HI-COOL
PL3
4
7
SEC2
8
LS
ALS1
DSS
ALS2
FRS1
(WHEN USED)
FRS2
N/A
12
2
3
MGVR-2
9
6
NOTE #8 LPS
(WHEN USED)
TWIN
TEST
S
M
W/W1
R
HUM
TWINNING
JUMPER
TJ
W2
Y/Y2
G
MGVR-1
NOTE #8
HPS
5
4
1
10
7
8 N/A
N/A
FSE
11
HI
M
P
C
NOTE#7
PL1
CPU
LGPS
LO
SW1
GV
OR
N
SW
4
SW
3
SW
2
C
OM
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
LO
RED
MED LO
BLU
COM
WHT
BLK
HI
YEL
MED HI
MED
COM
HI
MED
MED LO
LO
NOTE #15
ORN
SPARE
MED HI
SPARE
BLU
NOTE #15
324459-101 REV. D
WH
T
BL
K
BLU
BRN
GRY
BRN
GR
Y
WHT
WHT
RE
D
WHT
WHT
BLK
RED
BL
K
YEL
YEL
BR
N
GR
Y
BLU
ORN
ORN
ORN
RE
D
RE
D
RE
D
WHT
BLK
BLK
BLK
BLK
WHT
BL
U
RE
D
RED
RED
(NATURAL GAS & PROPANE)
SCHEMATIC DIAGRAM
EQUIPMENT
GROUND
GR
N
/YEL
GR
N
/Y
E
L
GRN/YEL
GRN/YEL
GRN/YEL
—
8
—