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F) MULTILEAD DIAGRAM C.A.I.
NOTE: L-N POLARIZATION IS COMPULSORY
CM1 ON-OFF TIMER SELECTION JUMPER
CM2 MTN-LPG SELECTION JUMPER
E.A./R. IGNITION/DETECTION ELECTRODE
FA1 GROUDING FASTON
FL DHW FLOW METER
FUSE1 2 A F FUSE
IC21 CONTROL BOARD
LD1 LED RED
LD2 LED GREEN
LD3 LED YELLOW
MOD MODULATOR
OPE OPERATOR
P1SAN. DHW TEMPERATURE SELECTION POTENTIOMETER
P2SELET. CH-DHW-RESET /OFF SELECTOR
P3RISC CH TEMPERATURE SELECTION POTENTIOMETER
P PUMP
PA WATER PRESSURE SWITCH
RL1 IGNITION ENABLING RELAY
RL4 PUMP RELAY
S.R. (NTC) PRIMARY TEMPERATURE SENSOR
S.S. (NTC) DHW TEMPERATURE SENSOR
T.A. ROOM THERMOSTAT
T.L. LIMIT THERMOSTAT
TR2 TRANSFORMER