Operation Manual

Mounting and installation10
DANGER! Danger to life through
electric shock!
Contacts that are
open are live.
f Ensure that the cable
is deenergized.
Opening the housing
1
Open the housing (see fold-out page, Fig. 2).
Plugging in the expansion module (optional)
The expansion module HCS80 expands the
number of possible temperature zones of the
underfloor heating controller from 5 to 8.
1
Insert the expansion module with the
adapter connector into the provided slot
(see fold-out page, Fig. 4 (11)).
Setting the thermal actuator type
1
Check which thermal actuator type is used.
2
Set the switch in accordance with the following
table (see fold-out page, Fig.4, (10)):
Switch
position
Thermal
actuator type
Property
Normally
closed
Opens the heating circuit
when voltage is applied
to the zone output. The
thermal actuator only
requires power during
heating operation
Normally open
Opens the heating circuit
when no voltage is applied
to the zone output.
Only one type of thermal
actuator can be con-
nected per underoor
heating controller.
If normally open and
normally closed ther-
mal actuators are to
be operated, you re-
quire two underoor
heating controllers.
!
The thermal actuators
are protected by a
ceramic fuse, see
Section "Navigation
and function overview"
on Page 27.
!
Settings at the underfloor heating controller