PAW FC3.10 - Page 10

3 Mounting and installation [specialist]
10 99E13331xx-mub-en - V07 2021/03
Inputs FriwaMini:
Terminal
Individual operation mode / Cascade operation mode
S1, Ʇ Flow temperature, primary (T-VL)
S2, Ʇ Optional: Storage tank temperature (T-SP), ext. circulation temperature,
ext. stratification temperature
S3, Ʇ Optional: Storage tank temperature (T-SP), ext. circulation temperature,
ext. stratification temperature
S4, Ʇ Cold water temperature, secondary (T-CW)
VFS/US1 Domestic hot water temperature (T-DHW) and flow rate, secondary
Inputs FriwaMidi/Maxi/Mega:
Terminal
Individual operation mode / Cascade operation mode
S1, Ʇ
Flow temperature, primary (T-VL)
S2, Ʇ
Domestic hot water temperature, secondary (T-DHW)
S3, Ʇ
Optional: Storage tank temperature (T-SP), ext. circulation temperature,
ext. stratification temperature
S4, Ʇ
Cold water temperature, secondary (T-CW)
VFS/US1
Flow rate, secondary
VFS/US2
(for Friwa Mega): flow rate, secondary
Outputs:
Terminal
Individual operation
Cascade operation mode
R1
Optional: alarm relay, error relay,
reheating, stratification
Cascade valve
R2
Optional: stratification, alarm
relay, error relay, reheating
Stratification
(Connection at server 1)
R3
Primary- / secondary pump
Primary- / secondary pump
PWM 1
Primary pump
Primary pump
PWM 2
Secondary pump (circulation)
Secondary pump
(circulation at the client)