Potterton HE Plus - 11.0 Commissioning; Boiler Commissioning Steps

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11.0 Commissioning
© Baxi Heating UK Ltd 2007
11.1 Commissioning the Boiler
1. Reference should be made to BS 5449 Section 5 when
commissioning the boiler.
IMPORTANT: The heat exchanger air vent on top of the
boiler (Fig. 51) MUST be opened before filling the primary
system.
2. Ensure that the filling loop is connected and open, then
open the heating flow and return valves on the boiler.
3. Open the screw on the automatic air vent on the pump
body (Fig. 52).
4. The system must be flushed in accordance with BS 7593
(see Section 6.2) and the flushing agent manufacturers
instructions.
5. Pressurise the system to 1.5 bar then close and disconnect
the filling loop.
6. Turn the gas supply on and purge the system according to
in GB BS 6891 and in IE I.S. 813 “Domestic Gas Installations”.
7. Test for gas soundness.
8. Hinge the facia panel upwards and refit the case front
panel. Tighten the securing screws.
9. Turning the temperature control knob will set the relevant
temperature. When the knob is turned the display will alter
and show the selected temperature. After a few seconds the
display reverts to show the current boiler temperature
(Fig. 54).
Pump
Automatic Air
Vent
Pressure Gauge
Screw
bar
0
1
2
3
4
Fig. 52
Selector Switch
Central Heating
Temperature Control
Calibration Control
Reset
bar
0
1
2
3
4
Pump
Fig. 54
Fig. 53
Display
Heat Exchanger
Automatic Air Vent
Fig. 51