QHC18M 18Kw Heater Controller Din Rail & connections
Distribution Box
P/No. QHDB-1824
Terminals 1 – O/P1
Terminals 2 – O/P2
Terminals 3 – O/P3
Terminals N – N out
Terminals E – Earth
5) When all connections are complete and connected correctly, check once again that the wiring is correct
as per 3) & 4). Then replace the service hatch cover and tighten the fixing screws.
6) Turn ON or reconnect the Main Power to the controller. The red neon lamp on the front panel will
illuminate to indicate that the unit is
LIVE
.
7) There are auxiliary devices such as mains operated PIR motion detectors & timer (lag) switches. These
can be connected to terminals #15 – 17. External push button switches which are voltage clean or free
can be connected to terminals #18 – 20.
8) An optional auxiliary device QHVC-S external 3 zone variable control can be connected to terminals
#21 – 25. Please contact the agent or distributor for auxiliary device instructions.
Important only a qualified electrician should install this device.
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