BRAHMA SR3 - Diagrams and Failure Modes; Connection Diagrams and Operating Cycles; Failure and Signal Response

ELECTRIC SCHEME BV3
LIVE
NEUTRAL
FLAME
DETECTION
CIRCUIT
ELECTRIC SCHEME SYMBOLS
BF: postpurge and lockout thermal BRF: flame detection relay
BRM: operation relay ER: detection probe
EV: gas valve M: burner casing
MB: burner motor PA: air pressure switch
PG: gas pressure switch SB: lockout signal
TA: ambient thermostat TC: boiler thermostat
TP: thermal programmer TR: ignition transformer
BRAHMA S.p.A.
Via del Pontiere, 31
37045 Legnago (VR)
Tel. +39 0442 635211 - Telefax +39 0442 25683 03/03/26 Subject to amendments without notice
http://www.brahma.it
E
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mail : brahma@brahma.it
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