Carrier 58SU0A - APPENDIX A - Furnace Control Board Layout

58SU0A (Series 2 & 3): Troubleshooting Guide
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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APPENDIX A - Furnace Control Board Layout
A190409
Fig. 2 – Furnace Control Board Layout
24-V THERMOSTAT
TERMINALS
PL2 – (115-VAC) HOT SURFACE IGNITER &
INDUCER MOTOR CONNECTOR
(L2) NEUTRAL
CONNECTIONS
115-VAC (BL) BLOWER MOTOR LINE
VOLTAGE CONNECTION
EAC-1 TERMINAL
(115-VAC EAC + HUM 1.0 AMP MAX.)
PL1 – LOW VOLTAGE MAIN HARNESS
CONNECTOR plus INDUCER PWM
TRANSFORMER 24-VAC
CONNECTIONS
3-AMP FUSE
STATUS LED LIGHT
HEAT OFF-DELAY
MODEL PLUG
CONNECTOR
HUMIDIFIER TERMINAL
(24-VAC 0.5 AMP MAX.)
BOARD PART NUMBER
LOCATION
COOLING SPEED
TAP
HEATING SPEED
TAP
PR
115-VAC (PR) TRANSFORMER
PRIMARY
J2 DEFEAT
JUMPER
TEST/TWIN
J2
J1
J1 HEAT OFF-DELAY
JUMPER SELECT
L1
HUM 115-VAC TERMINAL
(115-VAC EAC + HUM 1.0 AMP MAX.)
FACTORY RUN TEST PORT
(FACTORY ONLY)
PROGRAMMING FLASH PORTS
(FACTORY ONLY)
BL
115-VAC (L1) LINE VOLTAGE
CONNECTION
FAN SPEED TAP
PL3 - PRESSURE
TRANSDUCER INPUT
PL4
HUM
115VAC
SPARE UNUSED
TAPS