12
8
Pre-commissioning
Ensure that the system has been adequately flushed.
Purge gas supply of air and test for soundness.
Carry out final electrical tests to ensure the correct polarity
and earthing continuity.
DHW
Open the hot flow tap (32 fig. 22).
Check for water soundness
Central Heating
Open flow and return valves on the boiler.(30 and 33
Fig. 22)
Open the automatic air vent (6 Fig. 17)
Fill system and vent radiators.
Set system pressure and remove filling loop.
Check for leaks.
Manually check pump is free to turn.
Switch on electrical supply.
Turn selector switch (15 fig. 17) to heating and hot water
position
Allow pump to run for several minutes.
Isolate electrical supply.
Drain boiler and check water filter (
F Fig. 11) for
installation debris.
Replace filter and recharge system.
Lighting the Boiler
Connect gas pressure gauge to test point (43 Fig. 17).
Turn on the gas supply and boiler gas tap (31 Fig. 22).
Ensure electrical supply is on.
Ensure all external controls are calling for heat.
Turn selector switch ( 15 fig. 17) to heating and hot water
position
Turn the boiler thermostat to maximum (16 fig 17).
The boiler will light.
Allow the boiler to heat system.
Check the inlet gas pressure (working pressure) while the
boiler is operating. (Refer to technical data)
Check the operation of the boiler controls and safety
devices. (see separate servicing leaflet for details)
Re-flush the system to remove any dissolved oils and
fluxes.
Recharge system pressure and introduce any water
treatment as required.
Post Commissioning
Ensure system pressure has been set correctly.
Set the by pass.
Set boiler thermostat and controls.
Set programmer to householder’s requirements.
Set external controls.
Ensure the Logbook is fully completed with your contact
details and required readings and details of the
installation.
Handing Over to the Householder
Demonstrate the lighting and operation of the boiler.
Demonstrate how to maintain the system pressure.
Explain the benefits of annual maintenance by a
competent person.
Explain how to register guarantee.
Ensure the Householder countersigns the Logbook to
confirm that these demonstrations have been carried out
and understood.
Fig. 17
6
15
43
16
Commissioning and Testing
Summary of Contents for Britony System II Plus 100 Nat
Page 15: ...15 Notes...
