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TYPICAL INSTALLATIONS FOR INTEGRAL BOILER

Central Heating and Domestic Hot Water,

System Using Three Boiler Tappings.

TYPICAL INSTALLATIONS FOR INTEGRAL BOILER

Central Heating and Domestic Hot Water,

System Using Four Boiler Tappings.

Note: Diagrammatic representation only. Design and calculations for individual systems should always be

carried out by a qualified heating engineer.

FEED AND EXPANSION
TANK
COLD WATER
TANK
DOMESTIC HOT WATER
DRAW OFF
DRAIN COCK
RADIATORS
RADIATORS
CENTRAL HEATING RETURN 22mm PIPE
GRAVITY
RADIATOR
22mm OPEN VENTS
GRAVITY FLOW
28mm PIPE
PIPE STAT
GRAVITY RETURN
28mm PIPE
DRAIN COCK AT
LOWEST POINT CIRCULATING PUMP
INDIRECT HOT
WATER TANK
DOMESTIC HOT WATER
RETURN 28mm PIPE
COMMON RETURN TO
BOILER 28mm PIPE
CENTRAL HEATING
RETURN

INJECTOR TEE

RADIATORS
RADIATORS
DRAIN COCK
DOMESTIC HOT WATER
DRAW OFF
GRAVITY FLOW
28mm PIPE
CIRCULATING PUMP
DRAIN COCK AT
LOWEST POINT
CENTRAL HEATING RETURN 22mm PIPE
PIPE STAT
GRAVITY
RADIATOR
FEED AND EXPANSION
TANK
22mm OPEN VENTS
COLD WATER
TANK
GRAVITY RETURN
28mm PIPE
INDIRECT HOT
WATER TANK