5-WIRE HEAT/COOL (JUMPER REMOVED)
A
B
HEATING
RELAY OR
VALVE COIL
COOLING
CONTACTOR
1
COIL
L1
(HOT)
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
C
D
W
Y
G
Rc
R
FAN
RELAY
1
L2
L1
(HOT)
M1711C
3-WIRE COOL-ONLY (JUMPER INTACT)
COOLING
CONTACTOR
COIL
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
26
A
C
B
D
W
Y
G
Rc
R
FAN
RELAY
JUMPER
L1
(HOT)
L2
M848A
69-1385