Commissioning - Benchmark MAIN Installation & Service Instructions Manual

Pump
Fig. 44
Selector Switch
30° 40° 50° 60° 70° 80°
Reset
Power On
Neon
Central Heating
Temperature Control
Fig. 46
34
© Baxi Heating UK Ltd 2007
Screw
Automatic Air
Vent
2
bar
Fig. 45
2
bar

11.0 Commissioning

11.1
1. Reference should be made to BS 5449 when
commissioning the boiler.
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 (Fig. 44).
4. The system must be flushed in accordance with BS 7593
and the flushing agent manufacturers instructions.
5. Pressurise the system to 1.0 bar (Fig. 45) 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. If at any time during commissioning it is required to
terminate a particular cycle, e.g. the pump overrun period,
turn the selector to the Off position and then back to the
On position (
Pressure Gauge
Commissioning the Boiler
) (Fig. 46).