Connecting A 230 V Time Clock In Combination With A Modulating Room Control; Modulating Control - Room Or Outside Compensation - REMEHA Avanta Range 24c Installation & Service Manual

Terminal
Block X9
1
2
3
4
5
Exist
links
6
7
Modulating - using Open Therm control
eg: Honeywell Chronotherm or Celcia 20
On / Off - using simple volt free switching control
8
fi g. 23 Wiring diagram modulating regulator
LT.AL.W7H.000.028c
X9
2.7.3 Connecting a 230 V time clock in combination
with a modulating room control
With an externally mounted simple 230 V switching time clock
connected to connectors on X2 terminal block and a Celcia 15
connected to connectors 7 and 8 of X9 terminal block (remove
existing link between connectors 7 and 8 before use), the
Remeha Avanta Plus will provide room compensated heating
and time control over CH and DHW (System boiler).

An OpenTherm ® room modulating control (Celcia 15) used in
conjunction with a simple external 230 V time clock will
provide easy to set up and operate - timed room compensa-
tion heating
2.7.4 Modulating control – room or outside
compensation
The Remeha Avanta Plus has an OpenTherm
enables our modulating range of OpenTherm
(e.g. the Remeha Celcia 15 or 20) to be connected without
any further modifications.
• Mount the control in a reference room (usually the living
room).
• Connect the two-wire interface cables to connectors 7 and 8
of the X9 terminal block (remove existing link between con-
nectors 7 and 8 before use).
• When using the Celcia 20 it is possible to add the outside
sensor to provide weather compensation. Connect the out-
side sensor to connectors 1 and 2 of the X9 terminal block.
23
interface. This
®
room controls
®