Computherm Q7RF Operating Instructions Manual page 5

vided. Remove the protective carton from the contacts to
ensure perfect contact.
The marks of the connections are pressed into the plas-
tic above the connection points: N, L, 1, 2 and 3.
230 V mains voltage should be supplied to the receiver
unit. This provides the power supply for the device, but
this voltage does not appear on the terminals 1 and 2.
We propose to connect the neutral wire of the network to
point N, while the phase conductor to point L. We recom-
mend using a fork type connection including a switch for
mains connection. Please de-energize the device when
heating is continuously not needed (e.g. summer).
The receiver unit controls the boiler or air conditioner
through a potential-free alternating relay whose con-
nection points are: 1 (NO), 2 (COM) and 3 (NC). Con-
nect the two connection points of the heating or cooling
equipment to be controlled to terminals No. 1 (NO) and
No. 2 (COM), i.e. to the normally open terminals of the
relay as shown in the figure.
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