Basic Hydraulic Layout
■ Configuration 1: 1 heating circuit
Key:
AE
- DHW electrical backup
CAR
- Non-return valve
C
- HP
circulation pump
CCM
- Mixed circuit circulation pump
D
- Shut-off
Db
- Flowmeter
GS
- Safety valve (mandatory)
MT
-
Thermostatic mixing valve
PC
- Underfloor heating system
Pg
- Bleeder valve
R
- Radiators
SA
- Room sensor (optional)
Sae
- DHW electrical backup safety thermostat
SaeC
- Safety thermostat (heating backup
option)
SDp
- HP
flow sensor
SE
- Outside sensor
SR
- Return sensor
Ssa
- DHW sensor
SSe
- Safety valve
VD
- Distribution valve
VE
- Expansion vessel
SSe
SR
VE
C
VD
SDp
Pg
Pg
SaeC
Db
SE
Ssa
Sae AE
GS
MT
CAR
CAR
D
R
OU
PC
SA
SA
R
dyn*
OU
SA*
BT *
- 70 -
alfea Excellia HP Duo A.I. / Installation / 1945 - EN