8
Internal wiring diagram (QM1)
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= ~
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OFF
ON
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2
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4
• Carry out wiring installation using appropriate diagram as shown�
• When the TOWERCHRON QM1 timeswitch is to be used with a combination boiler, always refer to the
boiler manufacturers instructions concerning electrical wiring before using the information contained
in this leaflet� In some cases the boilers manufacturers instructions will contain information regarding
removal of certain link wires and will always indicate the fuse rating for the mains electrical supply�
• Plug in unit and secure to the base by tightening fixing screw�
