Fig D Diverter Valve Fully Pumped System
Page 9
Commissioning the Unit
Flush the whole system with all valves open.
Fill the system, vent the radiators and check for water leaks.
Turn the gas service tap to the ON position, check for gas soundness (BS 6891: 1988). Purge the
air from the gas supply pipe at the gas service tap.
Turn the boiler thermostat to the OFF position.
Turn on the mains electrical supply and ensure that all external controls e.g. room thermostat,
timer, etc., are calling for heat.
Remove the burner pressure test point screw and connect a pressure gauge.
Hold in the grey ON/OFF button on the gas control valve (
). Press the piezo unit button (
)
and release. Repeat until pilot lights. Hold in the grey ON/OFF button for a further 20 seconds and
then release. The pilot light should then stay alight. (IF THE PILOT FAILS TO REMAIN ALIGHT
TURN THE GREY ON/OFF BUTTON CLOCKWISE, WAIT 3 MINUTES AND START AGAIN
Summary of Contents for BOSTON 40 OF
Page 9: ...fig 1 Pump in Casing Page 5 fig 2 Outer Case ...
Page 15: ...Page 8 Fig A One Zone Valve Fully Pumped System ...
Page 16: ...Fig B Sundial Gravity System ...
Page 17: ...Fig C 2 Zones Valve Fully Pumped System ...
Page 20: ...fig 7 Burner Controls fig 8 Boiler Thermostat Page 10 ...
Page 23: ...Fig 9 Insulation Combustion Box Door Fig 10 Baffle Securing Screws ...
Page 24: ...fig 11 Door Burner 60 50 40 fig 12 Door Burner 80 70 ...
Page 29: ...fig 16 Insulation Page 14 Short Parts List ...
Page 30: ......
