Technical data

11.0 Commissioning

11.1 Commissioning the Boiler

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 ( ) (Fig. 46).

Automatic Air

Vent

Pressure Gauge

Screw

bar

Fig. 44

Selector Switch

Central Heating

Temperature Control

Fig. 45

bar

30° 40° 50° 60° 70° 80°

Reset

Pump

Fig. 46

Power On

Neon