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

5 Before installation
Fig.32 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 3-way valve bypass
3 4 bar safety valve (0.4 MPa)
7 Automatic air vent
9 Isolation valve
16 Closed expansion vessel
18 Filling the heating circuit
24 Domestic hot water tank exchanger primary inlet
25 Primary exchanger outlet domestic hot water tank
26 DHW load pump
27 Non-return valve
30 Calibrated and sealed safety unit
30e Drain valve
31 Independent domestic hot water tank
34
5 5 .7.2 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
44
65
61 S
T
27
93
2c
9
9
9 18
30
33 Domestic hot water temperature sensor
34 Modulating boiler pump
35 Disconnecting cylinder (optional)
38 Remote control with or without room temperature
sensor
44 Safety device to safeguard against overheating of
the underfloor heating system, in accordance with
prevailing regulations
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 Underfloor heating circuit heating pump
117 3-way mixing valve
119 Boiler return
38
33
T
24
26
27
25
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MW-3000019-01