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19
HEAT ONLY BOILER
PROGRAMMABLE ROOM THERMOSTATS & TRV’S (150m
2
+)
DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED
PLUMBER INLINE WITH CURRENT PART L GUIDELINES.
BOILER
2 PORT
3 PORT
ABV
WHEEL
HEAD
VALVE
LOCK
SHIELD
VALVE
THERMASTIC
RAD VALVE
ROOM
STAT
PROG
ROOM
STAT
MULTI
CHAN
PROG
TWO
CHAN
PROG
ONE
CHAN
PROG
CYL
STAT
JUNCT.
BOX
WIRING