Connecting An Outside Temperature Sensor - REMEHA Avanta 24c Installation And Service Manual

2. Installation
fig. 25 Wiring diagram outside temperature sensor
R000154-B
75
60
40
20
-15 0
fig. 26 Heat curve Remeha Avanta Plus
LT.AL.W7H.000.030
24
X9
R000154-B
Factory setting
10 20
LTALW7H000030a
If the DHW water temperature on the OpenTherm
be adjusted, then the Remeha Avanta Plus will supply water
at the temperature determined on the OpenTherm
maximum being set in the boiler.
OpenTherm is an industry standard modulating control avail-
®
able from several control manufacturers.

The Remeha Avanta Plus can therefore be controlled directly
by any other controls with this OpenTherm
2.7.5

Connecting an outside temperature sensor

An outside temperature sensor can be connected to connec-
tors 1 and 2 of the X9 terminal block.
The boiler will regulate the output using the set point of the
internal heat curve.
This can be set as follows:
- Outside temperature minimum set point = -15°C (adjustable
with parameter p29 to between 0 and -30°C)
- Outside temperature maximum set point = 20°C (adjustable
with parameter p28 to between 0 and 40°C)
- F low temperature set point at maximum outside tempera-
ture = 20°C (adjustable with parameter p27 to between
0 and 60°C)
- Flow temperature set point at minimum outside temperature
= 20°C (adjustable with parameter p1 to between 20 and
85°C)

An outside sensor used in conjunction with a simple 230 V
time clock will provide easy to set up and operate - timed
weather compensation heating based on the above graph.
Remeha Avanta Plus
control can
®
with the
®
logo
®
127768-271011