KEY TO LAYOUT
CMV
Fan motor contactor
CO
Commutator
FR
Photocell
st
h 1
1
stage hourcounter
nd
h 2
2
stage hourcounter
rd
h 3
3
stage hourcounter
st
L1
1
stage lamp
nd
L2
2
stage lamp
rd
L3
3
stage lamp
L4
Lock - out motor lamp
5906
INTERNAL WIRING DIAGRAM
(carried out by the factory)
5
MB
Wiring terminal board
MV
Fan motor
RT
Thermal relay
TA
Ignition transformer
TB
Burner ground (earth) connection
VS
Safety
solenoid valve
st
V1
1
stage solenoid valve
nd
V2
2
stage solenoid valve
rd
V3
3
stage solenoid valve
2567