Wiring Installation Instruction (Qm2) - Grasslin Towerchron QM1 Installation And User Instructions Manual

Wiring installation instruction (QM2)

Gravity Hot Water / Pumped Heating - System with Room Stat to Control Pump
TOWERCHRON QM2
N L 1 2 3 4
EARTH
NEUTRAL
LINE
BOILER
SWITCHED LIVE
REFER TO BOILER
MANUFACTURER
INSTRUCTIONS
The following wiring diagrams are schematic only (for clarity the earth and neutral connections are
omitted)� We suggest when wiring systems a suitable wiring centre is used (the Tower Controls wiring
centre is purpose made and gives full information for wiring this programmer into systems using
compatible equipment)�
16
• With the above system, the following
ROOMSTAT
EARTH
NEUTRAL
N
COMMON
DEMAND
PUMP
• Fully pumped systems
EARTH
N NEUTRAL
LINE
combination can not be selected on the slide
switches:
– Heating TIMED, hot water off
– Heating CONST, hot water off
– Heating CONST, hot water timed
– Remove red pin (see applications
TOWERCHRON QM2)