Remeha
Quinta 45/65
46
Fig. 17
Fitting the interface
05W4H7900008
8.4.2 Analog control (0-10 Volt dc)
The heat output modulates between the minimum and the maximum value on the
basis of the voltage supplied by an external analog
(0 -10V) input; terminal connections 1 (gnd) and 2 (+).
- Temperature based (20 to 90°C) set the
x
value of the boiler control operation
parameter (
A
) to
4
.
To set the ratio between voltage and the desired flow temperature,
see Par. 6.6.15
and the graph below.
- Output based - fixed parameters (18 to100%), see graph below.
0 Volt
= boiler off
0.5 - 1.8 Volt
= heat input 18%
1.8 Volt - 10 Volt
= boiler modulates between 18 and 100% on demand
Set the
x
value of the boiler control operation parameter (
A
) to
5
.
NOTE:
When using an external analog (0 -10V), the factory default
03
should be
changed to
00
.
