Bryant 352MAV - Manual (Page 11)

Fig. 15—Wiring Diagram A01018
LEGEND
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 -1 = BLWM -2 = IDM
CPU MICROPROCESSOR AND CIRCUITRY
EAC-1 ELECTRONIC AIR CLEANER CONNECTION (115 VAC, 1 AMP MAX.)
EAC-2 ELECTRONIC AIR CLEANER CONNECTION (COMMON)
FRS 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 OPERATO RS, 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 VALV E RELAY, DPST (N.O.)
- 1 = VALVE - 2 = HUMIDIFIER
PL1 12-CIRCUIT CONNECTOR
PL2 9-CIRCUIT CONNECTOR
PL3 4-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 MASTER OR
SLAVE STATUS (MANUAL CHANGE OVER)
TRAN TRANSFORMER-115VAC/24VAC
TWIN/TEST 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)
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. This wire must be connected to furnace sheet metal for
control to prove flame.
7. Factory connected when LGPS not used.
RED
LS FRS
RE
D
RE
D
OR
N
LGPS
LPS
(W
HE
N U
S
E
D
)
SWITCH
1 2
HEAT
SET-UP
SWITCH
NORM
HI HT
LO HT
*
ON OF
F
OFF ON
BLOWER-
OFF DELAY
(SEC.) SWITCH
3 4
90 SEC
135 SEC *
180 SEC
225 SEC
ON OFF OF
F
ON
2-STAGE
FURNACE
CONTROL
FA
CT
OR
Y
S
E
TTI
N
G
S
1
2
34
ON OF
F
3
2
1
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
10
PL1
32
1
9
87
FS
E
HPS HI
M
IDM
HSI
ILK
JB
L1
PL6
1 2
1 2 3
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-1
TRAN
GV
C
GRN/YEL
FUSED DISCONNECT
SWITCH (WHEN REQ'D)
NOTE #1
BLK
WHT
GRN
L2
GND
FU2
CONNECTION DIAGRAM
L1
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
3 1
HSI
2 9
PL2
PR2 115VAC PR1
TRAN
24VAC
IDR
L2
ILK
BLWM
BHI / LOR
BHT / CLR
CAP-1
BRN BRN
PL6
IHI / LOR
SEC1
FU1
NOTE #5
1
2
3
HPSR
1
5
6
2
N/A
N/A
HI-COOL
PL3
4
7
SEC2
8
LS FRS
N/A 12
2
3
MGVR-2
9
6
NOTE #7
(WHEN USED)
TWIN
TEST
SLAVE
MASTER
W/W1
R
HUM
TWINNING
JUMPER
TJ
W2
Y/Y2
G
MGVR-1
HPS
5
4
1
10
7
8
FSE
11
HI
M
C
NOTE#6
PL1
COMPONENT TEST
CPU
LGPS
C OM
RED LO RED
MED LO BLU
COM WHT
BLK HI
YEL MED HI
MED
COM
HI MED
MED LO
LO
NOTE #14
ORN
SPARE MED HI
SPARE
BLU
NOTE #14
RED
RED
ORN
BL
U G
R
N
/YEL
GR
Y
BR
N
WHT
WH
T
BL
K
YEL
YEL
WH
T
GR
Y
WH
T
OR
N
WHT
BLK
WHT
BL
K
BLK
BL
K
GRN / YEL
BLU
WH
T
BRN
BRN
GRY
4
G
R
N
/YEL
NOTE #6
PL3
LO
4
COM
HI
LPS
GV
8. Symbols are an electrical representation only.
9. BLOWER-ON DELAY: Gas heating 60 seconds,
Cooling/Heat Pump 2 seconds.
10. BLOWER-OFF DELAY: Gas heating 90, 135, 180, or
225 seconds, cooling or heat pump 90 seconds.
11. IGNITION-LOCKOUT will occur after four
consecutive unsuccessful trials-for-ignition.
Control will automatically reset after three hours.
12. Control must be grounded at pin 10 of 12-pin connector.
13. NA - Not Applicable (Not used)
14. Orange lead not available on all models.
CAP-2
BRN BRN
GRN
C
AP-
2
RE
D
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 High-Speed, HSI, inducer motor Low-Speed, blower motor Low-Gas-Heat Speed, blower motor High-Gas-Heat Speed, and blower motor High-Cool Speed for 7-15 seconds each
(the inducer motor will be ON the entire length of the test). Neither the gas valve nor the humidifier will be turned ON.
RE
D
WH
T
OL
YEL
ID
M
OL
NOTE #7
326050-101 REV. B
OR
N
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