Connection Diagram: 1 Boiler + 1 Direct Circuit + 1 Underfloor Heating Circuit + 1 Domestic Hot Water Tank - Baxi POWER HT+ 1.50 Installation And Service Manual

5 Before installation
2 2 Heating pump
2a Heating return direct circuit
3 4 bar (0.4 MPa) safety valve
7 Automatic air vent
9 Isolation valve
16 Closed expansion vessel
18 Heating circuit fill point
24 Domestic hot water tank exchanger primary inlet
25 Domestic hot water tank exchanger primary outlet
26 DHW load pump
Fig.30 1 boiler + 1 direct circuit + 1 underfloor heating circuit + 1 domestic hot water tank
7
7
1a
3
1
35
2a
30e
119
1 Boiler flow
1a Heating flow
2 Heating pump
2a Heating return
2c Three-way valve bypass
3 4 bar (0.4 MPa) safety valve
7 Automatic air vent
9 Isolation valve
16 Closed expansion vessel
18 Heating circuit fill point
24 Domestic hot water tank exchanger primary inlet
25 Domestic hot water tank exchanger primary outlet
26 DHW load pump
27 Non-return valve
30 Calibrated and sealed safety unit
30e Drain valve
32 POWER HT +
5.6.2 Connection diagram: 1 boiler + 1 direct circuit + 1 underfloor
heating circuit + 1 domestic hot water tank
38
64
7
27
2
117
9
27
9 27
34
16
27 Non-return valve
30 Calibrated and sealed safety unit
30e Drain valve
31 Independent domestic hot water tank
33 Domestic hot water temperature sensor
34 Modulating boiler pump
35 Low-loss header (accessory)
38 Remote control
64 Direct heating circuit
119 Boiler return
44
65
61
S
T
27
93
2c
9
9
9 18
9
30
31 Independent domestic hot water tank
33 Domestic hot water temperature sensor
34 Modulating boiler pump
35 Low-loss header (optional)
38 Remote control with or without room temperature
sensor
44
61 Thermometer
64 Direct heating circuit (example: radiators)
65 Heating circuit with mixing valve, may be low tem­
perature heating circuit (underfloor heating or radia­
tors)
93 Heating pump for underfloor heating circuit
117 Three-way mixing valve
119 Boiler return
38
33
T
24
26
27
25
7609474 - v03 - 15072015
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MW-3000019-04