Manual

IGNITION
MODULE
GAS VALVE
IGNITER
FLAME
SENSOR
BLOWER
RELAY
PRESSURE
SWITCH
P.S.
INDICATOR
LIGHT
VALVE
INDICATOR
LIGHT
L2L1
VALVE
L2 (NEUTRAL)
THERMOSTAT
L1
SIC1
PROBE
GROUND
NEUTRAL
F.C. TEST PINS
N.O. RELAY L1 (RELAY)
VALVE ENABLED
L2 (BLOWER) L2 (NEUTRAL) - PWM + PWM
COM.
24VAC
TRANSFORMER
Y
BL
BK
BL
BK
W W
W
G
BK
OW
BK W
BK
BK
BK
BK
BRBK
BK
BK
RBL
G
BK
W
W
Y
R
BK
MODULATING
CIRCUIT
BOARD
BK
R
BR
BK
13
MP Series
2.0 Installation • Internal Wiring
Field Wiring
Before field wiring this appliance - Check existing wiring; replace if necessary.
Note: If any of the original wire supplied with the appliance must be replaced, it must be replaced with
wiring material having a temperature rating of at least 105°C and a voltage rating of 660V.
Figure 2.5 • MP Series Internal Wiring Diagram