Baxi Bermuda 45/4 M Installation And Servicing Instructions page 24

COMMISSIONING THE APPLIANCE - Page 24
ELECTRONIC CONTROLS MODELS
On Electronic Controls models the pilot is intermittent and
lights when the boiler thermostat is calling for heat.
To operate the pilot turn the thermostat to HIGH. The burner
will also light shortly after the pilot has been established.
Electronic Control Models are fitted with a series of
diagnostic indicator lights that indicate the status of the
boiler. Three of these are visible through the top of the
control box cover and two through the front of the control
box. Their sequence of operation is as follows:-
a) No power-no lights.
b) Permanent live supplied-orange light illuminates.
c) Permanent live & switched live supplied-second
orange light illuminates.
d) Boiler thermostat turned on-third orange light
illuminates and spark generator operates.
e) Pilot established-green light illuminates and power
supplied to main burner solenoid.
f) Boiler fault-orange light illuminates and boiler goes
to lockout.
The pilot flame should be without a yellow tip and be
approximately 20mm long. No adjustment is possible.
NOTE: On appliances without permanent live (i.e. radiant
firefront installations) where terminals L and SL have been
connected using the link wire, the first two orange lights will
illuminate simultaneously when the switched live is supplied.
Operate the burner and allow the system to reach normal
operating temperature. Make further checks for leaks and
check the burner setting pressure, adjusting if necessary.
This is done by removing the governor cover screw and
adjusting the governor in either direction as required:-
clockwise to increase, anticlockwise to decrease.
Remove the pressure gauge and tighten the pressure test
point sealing screw.
The boiler and system should be run and then flushed and
treated in accordance with B57593: 1992 and the flushing
agent/inhibitor manufacturers instructions. When all the air
has been removed from the water circuit, the pump and
radiators should be balanced to achieve the design
temperature drop across the system.
Carefully read and complete all sections of the "Benchmark"
Installation, Commissioning and Service Record Log Book
that are relevant to the appliance and installation. The details
of the Log Book will be required in the event of any warranty
work. The Log Book must be handed to the user for safe
keeping and each subsequent regular service visit recorded.