38
Solution 3: System with a direct multi-zone circuit and a mixed multi-zone circuit
S1
PT1000
= Ts1
S1 AUX = Sm1
R1
= PC1
R2
= VMIX1 AP
R3
= VMIX1 CH
R4
= PC2
SE
= SE
TA1
= TZ1
TA2
= TZ2
SE
ACS
SP
PC2
PC1
Ts1
VMIX1
Sm1
R
M U
SE
R1
S1 AUX
S1PT1000
R4
TA1
TA2
TZ1
TZ2
R2
R3
M
System delivery
U
Domestic hot water output
R
Boiler return
DHW
Domestic hot water
SE
External temperature sensor
PC1
Circuit pump 1
PC2
Direct circuit pump 2
VMIX1
Mixer valve circuit 1
Sm1
Circuit 1 delivery sensor
Ts1
Circuit 1 safety thermostat
TZ1-2
Zone thermostat
SP
Hydraulic separator
Solution 5: System with a mixed multi-zone circuit and a remote hot water tank for preheating domestic hot water
S1
PT1000
= Ts1
S1 AUX = Sm1
R1
= PC1
R2
= VMIX1 AP
R3
= VMIX1 AC
SE
= SE
S2 AUX = SPS
TA1
= TZ1
SE
ACS
SP
PC1
Ts1
VMIX1
Sm1
SE
S1 AUX
S1PT1000
R
M U E
SPS
S2 AUX
OV
TA1
TZ1
R2
R3
R1
M
System delivery
U
Domestic hot water output
E
Domestic hot water inlet
R
Boiler return
DHW
Domestic hot water
SE
External temperature sensor
OV
Thermostatic diverter mixer
PC1
Circuit pump 1
VMIX1
Mixer valve circuit 1
Sm1
Circuit 1 delivery sensor
Ts1
Circuit 1 safety thermostat
TZ1
Zone thermostat
Vz
Zone valve
SPS
Domestic hot water preheating sensor
SP
Hydraulic separator