Checking The System Performance - BONAIRE Installation Instructions Manual

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General Information (cont)
6) When combustion fan reaches required pressure level, the pressure
switch closes.
7) A further 20 seconds elapses as purge time.
8) Igniter function commences.
9) Gas valve is energised allowing 4 seconds for the gas to ignite.
10) If flame is detected by a sensor. The gas valve remains energised.
11) Room air fan will commence 20 seconds after the gas valve is
energised.
12) At the end of the heating cycle, the room air fan will have a run down
period of 80-180 seconds.
13) Should the flame not ignite after the 6th attempt, the unit will go to
lockout. Reset unit to restart.
14) To reset the unit, switch the mains power OFF then wait 2 seconds
before switching the power back ON or with the navigator control a
error code is displayed when a lockout has occurred. When the word
"enter" appears in the display press the enter key to reset the unit.

CHECKING THE SYSTEM PERFORMANCE

Having set the gas pressure check the discharge temperature of the air in
the discharge duct to confirm the correct operation of the central heater.
For best performance, the discharge temperature should be 50C – 60C
when measured 300mm from the appliance inside the discharge air duct.
Checking the correct operation of the heater:
1) Using the thermostat, switch the heater OFF. Wait for the room air fan
to cease operation (approximately 80 -180 seconds), then switch ON
again to recheck the starting sequence.
2) Using the thermostat, switch the heater OFF unless the customer
requires that it be left running.
3) Before leaving, make sure that the customer understands how to
operate the heating system.
4 Star (MB4XXX) product will not operate unless the
thermistor has been connected and the sensor installed
correctly in the air discharge duct.
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Part 5442225 issue E