
Ed. 11/2006
User, Installation and Service Manual for F1 Gas Unit Heaters
20
OPERATING WIRING DIAGRAM
Figure 18
LEGEND:
M9
fuse 5x20 6.3 A F
NP
pressure switch
M2
fan thermostat
CS
combustion blower capacitor (only for F1 21,31,41)
CV
fan capacitor (2 pcs. for F1 61/81)
S
combustion blower motor
V
fan motor ((2 pcs. for F1 61/81)
TR
ignition transformer
Z1
summer/winter switch
RP7
ignition electrode
Z9
room thermostat
RP8
flame sensor
M1
temperature limit thermostat
Q1
gas valve
M4
flame control unit
L
El. Supply – phase
L1
lockout warning lamp
N
El. Supply – neutral
P1 reset
button
GND
ground
BSRB
Blower Speed regulation Board
BSRB