LK Floor Heating | Assembly Instructions | LK Room Temperature Control ICS-RF8
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EN.33.C.891008
BUS (Network for the control of common pumps and/or heat sources)
In cases where multiple receiver units signal/control a common pump and/or heat source, the receiver units are
connected together, in parallel, through the input marked BUS. Use 3-core cable x 0.5mm² for the network.
When the units are connected, the remote control and holiday functions for all the devices on the network work
as one. For the network to function properly it is necessary to number/name the input receiver units, and specify
a start and end to the network.
Follow these steps when a network is to be created:
1. BUS - wiring
Connect all receivers BUS connectors using 3-core x 0.5mm² cable. The connection must be according to the
following diagram.
2. BUS – placing of a radio link
When multiple receiving devices are connected in a network only one radio link is used. The other units’ radio
links must be disconnected for the network to function. Place the radio link at the beginning or end of the
network. If necessary, a repeater can be used to improve the signal quality in large systems/long distance.
3. BUS – termination
Termination means that the networks start and end is specified. Place the “termination jumper" found left side
of receiver marked T as follows:
1. The networks first point corresponds to the receiver unit that is located first in the network. This unit
should have its Radio link connected. Remove the “termination jumper” from this receiver unit .
2. The network's second endpoint corresponds to the receiver unit that is last in the network. Ensure that
jumper is in the right location (located next to T).
3. Other devices in the network must have their jumpers removed.
