17
COMBINATION BOILER
PROGRAMMER, ROOM THERMOSTAT & TRV’S - 2 PORT VALVE CONTROL (<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