Checks And Adjustments After Commissioning; Configuring An Installation With 1 Boiler + 1 Low-Loss Header + 1 Direct Circuit + 1 Underfloor Heating Circuit; Domestic Hot Water Tank - Baxi POWER HT+ Series Installation And Service Manual

7 Commissioning
Fig.69 Removing the Venturi unit
B
A
3
R R eference Model
A POWER HT+ 1.50
B POWER HT+ 1.70
POWER HT+ 1.90
POWER HT+ 1.110
7.5

Checks and adjustments after commissioning

Tab.29 Boiler settings
Parameter number
5715
6020
6024
64
3. Remove the Venturi unit.
4. Replace the Venturi unit with the Venturi unit provided in the conver­
sion kit.
3
5. Remount the connection pipe to the gas valve.
Tab.28 Torque
Fastening Venturi end
Clip
Nut, Torque: 40 N·m
6. Open the mains gas valve.
7. Check the tightness of the assembly and ensure that there are no
leaks.
8. Set the gas valve according to the parameters given in the conver­
sion kit manual.
9. Set the fan speed according to the new gas type.
See
CO2 checking and setting values, page 62
10. Set the air/gas ratio.
See
11. Replace the gas setting label with the one delivered with the boiler
and tick the corresponding gas setting.
7.5.1 Configuring an installation with 1 boiler + 1 low-loss header
+ 1 direct circuit + 1 underfloor heating circuit + domestic hot water
tank
See
1. Go to the installer parameters.
See
Modifying the installer parameters, page 68.
2. Set following parameters on the boiler:
Parameter
T T emps / mode CH2
F F unction extension module 1
F F unct input EX21 module 1
Setting the air/gas ratio (maximum thermal flow rate), page 59.
Setting the air/gas ratio (reduced thermal flow rate), page 61.
Connection diagram: 1 boiler + 1 direct circuit + 1 underfloor
heating circuit + 1 domestic hot water tank, page 34.
Electrical connection: 1 boiler + 1 direct circuit + 1 underfloor
heating circuit + domestic hot water tank, page 52.
Setting
On
Temps / mode CH2
Limit thermostat CH
Fastening gas valve end
G1" nut, Torque: 40 N·m
Nut, Torque: 40 N·m
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