4 Overall hydraulic layout
• Configuration 1: 1 heating circuit
SE
Ssa
Sae AE
R
R
PC
OU
SA1
SA2
SR
VE
C
VD
GS
MT
CAR
SDp
Pg
SaeC
SSe
D
Legend:
AE
- Back-up DHW
AV
S
- Extension card, 2 circuits
CAR
- Non-return valve
C
- HP
Circulation pump
CCM
- Mixed-circuit heat pump
D
- Shut-of
f
GS
- Safety unit
K2c
- 2nd circuit kit
MT
-
Thermostatic mixer valve
PC
- Floor heating system
Pg
- Bleeder valve
R
- Radiators
SA1
- Room thermostat circuit 1 (option)
SA2
- Room thermostat circuit 2 (option)
Sae
-
Temperature safety of domestic electrical
back-up
SaeC
-
Temperature safety (option Heating
back-up option)
SDp
- HP
Initial sensor
SDpM
- Mixed circuit output sensor
SE
- Outdoor sensor
SP
- Heated floor thermal safety fuse
SR
- Return sensor
Ssa
- DHW sensor
SSe
- Safety valve
VD
- Distribution valve
VE
- Expansion vessel
VM
- Mixer valve
OR
Installation and operating manual "1572 - EN"
Heat pump air/water split 2 services alféa excellia duo
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