Guide To Main Configurations - Beretta METEO GREEN HE R.S.I. Installer And User Manual

GUIDE TO MAIN CONFIGURATIONS

SOLUTION A
System
Direct
TRADITIONAL SYSTEM – RADIATORS HIGH TEMP.
With Parameter nr.20=1, and then with Par. nr. 21 and Par.22 we define the maximum and minimum limit of the Heating Set Point (SP).
When the Rec07 makes an heating call, the system can work in 2 different ways:
- The Rec07 defines the value of the water flow temperature thanks to the thermoregulation ( ambient temperature probe installed). The value of the water
flow temperature is between the "MAX T-HS"- Maximum Flow Temperature (80°C default) and – "MIN T-HS" Minimum Flow Temperature (30°C default).
The thermoregulation curves start from the "MIN T-HS" (Minimum Flow Temperature) value. For each degree of temperature (delta difference to the set
point) the flow temperature is increased of 2 x "ROOM – INFL" value.
Example for high temperature: Parameter "MIN T-HS" (Minimum Flow Temperature) = 50 and parameter "ROOM – INFL" = 5. If we have an ambient
temperature of 18°C vs 20°C as ambient temperature set point, we have accordingly a flow temperature of 50 + 2 x (20-18) x 5 ("ROOM INFL") = 70°C.
Example for low temperature: Parameter "MIN T-HS" (Minimum Flow Temperature) = 20 and parameter "ROOM INFL" = 2. If we have an ambient
temperature of 18°C vs 20°C as ambient temperature set point, we have accordingly a flow temperature of 20 + 2 x (20-18) x 2 ("ROOM – INFL") = 28°C.
- The Rec07 defines the flow temperature at a fixed point if it is configured with parameter "ROOM – INFL" = 0 and parameter "MIN T-HS" (Minimum Flow
Temperature) = parameter SP (Set Point) of the desired heating value. The parameter "MIN T-HS" (Minimum Flow Temperature) can be set from 20÷80°C.
Temperature
High or Low
External Probe
Not installed
UNDERFLOOR HEATING SYSTEM
METEO GREEN HE R.S.I.
Heating Call
Rec07
47