LK Floor Heating | Assembly Instructions | LK Room Temperature Control ICS-RF8
7
EN.33.C.891008
Pump relay (illus. 9)
Circulation pumps (i.e. the pump in a shunt pack) can be controlled through the unit’s pump relay. The relay
is located under the lid of "high voltage side" of the receiver unit.
NOTE: that the relay contact is "potential free" (volt free), which means that the pump relay must be powered
from an external source and NOT from the receiver unit. The pump will start approximately 6 minutes after
any one channel calls for heat; when the relay is activated, its LED lights. The pump is run once every 24 hrs.
to prevent the pump from seizing during long downtime (e.g. during the summer). NOTE: wiring/connection
to the relay may only be performed by a qualified electrician.
See diagram below.
See also
BUS
section.
WARNING! RISK OF ELECTRIC SHOCK!
Disconnect all incoming power to the device before the high
voltage lid is opened.
Circuit diagram for connecting the pump
Relay for heat source (illus. 10)
Boilers/heat sources can be controlled via the heat source relay. The relay is located under the lid of "high
voltage side" of the receiver unit.
