Honeywell ST7997 - Manual (Page 3)

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3
ST7997 OIL BURNER MOUNTED ELECTRIC FAN TIMER
Fig. 3. ST7997 Oil Burner Mounted Electronic Fan Timer standard wiring connections.
N
HUM
N
EAC
N
1K2
1K1
2K2
2K1
COOL HEAT
MED HI MED LO LO
HI
BLACK WHITE
N
CONTINUOUS
FURNACE
LIMIT
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
T T
RC
W
R
C
C
G
Y
G
Y
G
Y
L1
GND
SCREW TERMINAL
1/4 IN. QUICK CONNECT
CIRCULATOR
BLOWER LIMIT
(LINE
VOLTAGE)
ORANGE
R7997
INTEGRATED
OIL PRIMARY
WITHOUT
BLOWER DELAY
BURNER
MOTOR
UNUSED
WIRES
J-BOX
M12924
OEFT
ST7997
K1 K2