WIRING DIAGRAM
Keys
BRM Motor relay coil
CT
Thermal relay contact
Fuse
F
FA
Anti-interference filter
FR
Photoresistor
Main switch
IG
Ima ON/OFF switch
LR
Lock-out warning light
ATTENTION: Do not invert PHASE and NEUTRAL wirings
In the event of operation with Tmf modulation thermostat, it is necessary to remove the bridge between terminals
4 and 5 of MR terminal board.
In the event of operation with mains voltage 230/240 V three-phase without neutral, a bridge will have to be
made between terminals L3 and N of MR terminal board, and a triangle connection made in the MB motor.
MB
Burner motor
MMS LANDIS SQN ... servo control
terminal board
MPE LOA 44-LMO 44 control box
terminal board
Auxiliary terminal board
MR
Reset push-button
PS
RM
Motor relay contacts
Thermal relay
RT
TC
Boiler thermostat
Tmf
2nd
stage
thermostat (option)
TR
Ignition transformer
TS
Safety thermostat
VE1 1st stage solenoid valve
VE2 2nd stage solenoid valve
VS
Safety solenoid valve
25
modulation