Setting The Functional Parameters; Setting The Central Heating Parameters - Beretta POWER PLUS Installation Instruction

Setting the Functional Parameters

The functions of the central heating high temperature and low temperature circuits and the DHW circuits can be set
based on the system requirements, by setting the functional parameters.
The first three parameters are accessible at a user level, while the remaining parameters require the password to be
entered ("22", see page 23).
To access the user parameters, press the "[" button, after which the following values will be displayed:
- Outlet temperature in the high temperature circuit T1
- Temperature in the DHW circuit T3
- Outlet temperature in the low temperature circuit T6
To change the corresponding set points:
- Press "Set/esc", the corresponding value will be displayed and the two digits on the right will flash.
- Press "+/-" until reaching the desired value. Press "OK" to save the new value. The value displayed will stop flashing
and will be valid after 3 seconds.
For a detailed description of all the parameters and the default values see page 58.

Setting the Central Heating Parameters

The following functions can be set for central heating:
1 Setpoint_T_CH_High
Setpoint in the high temperature circuit (parameter 1)
If the operating mode is set to "fixed set point" (par. 14=CH_type_high=0), this is the objective temperature.
If the operating mode is set to "climate control" (par. 14=1), this is the maximum objective temperature for the mini-
mum outside temperature (T_out_min=par. 37, pre-set to 0°C).
Parameter 18 (T_CH_high_foot, pre-set to 50°C) defines the minimum set point for the maximum outside temperature
(T_out_max, pre-set to 18°C).
Pre-set to 70°C with upper limit set by par. 17 (T_CH_high_limit, pre-set to 80°C).
100
90
80
70
60
50
40
30
20
10
0
25
CLIMATE CONTROL CURVE
HIGH TEMPERATURE CIRCUIT
T_CH_High_foot
T_out_min
T_out_max
20 15 10
Outside temperature (°C)
Max heating
requirement
T_CH_High
5 0 -5 -10 -15 -20
45