Fit combined air bleed manifold and 0-300psi (0-20 bar) pressure gauge to the appropriate oil pump
connection, and replace burner.
Switch on the electric supply to the boiler.
When the burner motor starts, on one pipe systems, it may be necessary to temporarily open the air bleed
screw on the test manifold.
Once the burner is firing check and if necessary adjust the oil pressure.
Carry out combustion checks by inserting probes into sampling points provided or at the flue outlet.
Check Smoke No., if clean wait 10 minutes and measure C02.
Adjust the air shutter (
see Fig 8.2a
), if necessary, open to reduce C02, close to increase C02.
If the air shutter is adjusted, re-check the Smoke No.
Check the flue gas temperature.
The figures should agree with data in Boiler Commissioning Data, Section 3.
FINAL CHECKS
Check lockout function, either remove photocell and cover it, or remove solenoid coil, to simulate flame
failure. Reinstate components and press lockout reset button.
Check that the control thermostat is operating when the set temperature is reached. Check the operation of
the limit thermostat if possible.
Reset Limit Thermostat once appliance temperature has dropped sufficiently.
Complete a maintenance report and give the customer a copy, retaining a copy for your records.
Page 34
8:2 AIR SHUTTER ADJUSTMENT
The Burner has a fixed Air Shutter with manual adjustment.
To adjust to C02 at the Air Shutter use a 3mm Allen key
as shown.
To increase the setting turn the air shutter
clockwise and to decrease turn anti-clockwise.
Page 45 of 57
Installation & maintenance manual for Camray 5 Combi External Boilers
14/04/2005
file://D:\PL61500\PL61500.htm
