- 10 -
The receiver unit controls the boiler or air conditioner through a potential-
free relay whose connection points are:
NO
and
COM
. Connect the two
connection points of the heating or cooling equipment to be controlled to
terminals
NO
and
COM
, i.e. to the normally open terminals of the relay.
These connection points become closed following the heating/cooling
command of any thermostat.
If you would like to operate an old boiler or any other device that has no
connection points for thermostats, then the connection points
NO
and
COM
of the thermostat should be connected to the mains cable of the
device, similarly as a switch would be connected.
ATTENTION!
Always consider the loadability of the receiver unit and
follow the manufacturer’s instructions of the heating or cooling equip
-
ment. The device must be installed and connected by a qualified pro
-
fessional!
The voltage appearing at terminals
NO
and
COM
depends only on
the system being controlled, therefore the dimensions of the wire are
determined by the type of the device to be controlled. The length of the
wire is of no significance, the receiver unit may be installed either near the
boiler or far away from it, but do not install it under the housing of the boiler.
If the distance between the transmitter and receiver units is too large due to
local circumstances and it makes the wireless (radio-frequency) connection
unreliable, install the receiver unit nearer to the place of thermostat.
Beside controlling the boiler, the receiver unit can also open/close the
valves of maximum 4 heating zones. Following the heating/cooling
command of one of the thermostat, 230 V AC, 50 Hz voltage appears on
the connection points of the zone valves associated with the thermostat.
The zone valves should be connected to the connection points
L1 N1; L2
N2; L3 N3
and
L4 N4
of the receiver.
- 10 -
230 V AC
50-60 Hz
230 V AC
50-60 Hz
N
L
Heating unit (boiler)
Zone valves
Rear panel of the receiver unit
(phase)
Summary of Contents for Q5RF
Page 2: ......
