Carrier 59SP2A - Page 38

38
TWINNING AND/OR
COMPONENT TEST
TERMINAL
PL1 − LOW VOLTAGE MAIN
HARNESS CONNECTOR
TRANSFORMER 24VAC
CONNECTIONS
EAC TERMINAL
(115 VAC 1.0 AMP MAX.)
SEC-2
115−VAC (L2)
NEUTRAL
CONNECTIONS
24−V THERMOSTAT
TERMINALS
HUMIDIFIER TERMINAL
(24−VAC 0.5 AMP MAX)
3−AMP FUSE
LED
OPERATION &
DIAGNOSTIC
LIGHT
SEC-1
BLOWER SPEED
SELECTION TERMINALS
BL−1
PR-1
COM
HEAT
COOL
FAN
SPARE2
SPARE1
Y1
DHUM
BLOWER OFF-DELAY
120 180
90 150
24V MTR TAPS
115 VAC (L1)
INPUT
L1
IND
PL-2 HOT SURFACE
IGNITOR (HSI) &
INDUCER MOTOR
(IND) CONNECTOR
HUM
EAC-1
HSI
PL-2
PL1
EAC-2
Com 24V
L2
A11391
Fig. 38 -- Example of Single Stage Furnace Control
59SP2A