
69-1204 4
ST7997 OIL BURNER MOUNTED ELECTRIC FAN TIMER
N
HUM
N
N
COOL
HEAT MED LO
LO
HI
BLACK
RED
WHITE
VIOLET
N
OIL
PRIMARY
L1
L1
L2
L2
BURNER/
VALVE
HUMIDIFIER EAC
L2
THERMOSTAT
5-WIRE
COMPRESSOR
CONTACTOR
RC
RC
F1
ISOLATION
HEAT CALL
CONTROL
ELECTRONICS
LIMIT
RC
W
R
C
CG
Y
G
Y
G
Y
L1
GND
SCREW TERMINAL
1/4 IN. QUICK CONNECT
CIRCULATOR
BLOWER
LIMIT
(LINE
VOLTAGE)
ORANGE
R7997
INTEGRATED
OIL PRIMARY
WITH BLOWER
DELAY
OIL
VALVE BURNER
MOTOR
J-BOX
M12922
OEFT
ST7997
K1 K2
EAC
N
1K2
1K1
2K2
2K1
COOL
HEAT
MED HI
CONTINUOUS
FURNACE
LIMIT
TT
UNUSED
WIRES