Appendix A - Board Layout & Wiring Schematic - Bryant 355MAV Troubleshooting Manual
Series h & i variable speed, two-stage electronic condensing gas furnace
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Also See for 355MAV:
- Installation, start-up, and operating instructions manual (60 pages) ,
- Troubleshooting manual (48 pages) ,
- Service and maintenance procedures manual (16 pages)
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BOARD LAYOUT AND WIRING SCHEMATICS
MODEL PLUG
CONNECTOR
SW1 SETUP
SWITCHES AND
BLOWER OFF-
DELAY
AIR CONDITIONING
(A/C) AIRFLOW
SETUP SWITCHES
24-V THERMOSTAT
TERMINALS
STATUS AND COMM
LED LIGHTS
3-AMP FUSE
TRANSFORMER 24-VAC
CONNECTIONS
115-VAC (L2) NEUTRAL
CONNECTIONS
PL1 – LOW VOLTAGE MAIN
HARNESS CONNECTOR
APPENDIX A
COMMUNICATION
CONTINUOUS FAN
CONNECTOR
(CF) AIRFLOW
SETUP SWITCHES
SOFTWARE
VERSION
Fig. 1 – Variable Speed Furnace Control
OUTDOOR
AIR TEMP
CONNECTOR
EAC-1 TERMINAL
VOLTAGE CONNECTIONS
(115-VAC 1.0 AMP MAX.)
- 32 -
SW4 SETUP
SWITCHES
PL2 – HOT SURFACE
IGNITER & INDUCER
115-VAC (L1) LINE
MOTOR CONNECTOR
HUMIDIFIER
TERMINAL (24-VAC
0.5 AMP MAX.
ACRDJ – AIR
CONDITIONING
RELAY DISABLE
JUMPER
FLASH
UPGRADE
CONNECTOR
(FACTORY
ONLY)
PL3 – ECM BLOWER
HARNESS
CONNECTOR
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