En 17 – TFC Group Towerchron QM1 User Manual

Page 17

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EN

17

Gravity Hot Water / Pumped Heating System - Two Port Valve in D�H�W� with Room and
Cylinder Stats

Note: Only valves with “change over“ end switches are suitable�

TOWERCHRON QM2

EARTH

NEUTRAL

LINE

CYLINDER STAT

VALVE

ROOMSTAT

PUMP

BOILER

EARTH

NEUTRAL

COMMON

DEMAND

EARTH

COMMON

DEMAND

GREEN/YELLOW

BLUE

BROWN

GREY

WHITE

ORANGE

EARTH

NEUTRAL

LINE

SWITCHED LIVE

REFER TO BOILER

MANUFACTURER

N L 1 2 3 4

N

N

N

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