11
2903334
c) Repeat step (a), making adjustments to the gas valve, until flame is established.
d) Once flame has been established, set your manifold pressure to the desired value from TABLE 1.
4) Check combustion gases using proper combustion analysis equipment to ensure safe levels of CO
2
and CO dur-
ing appliance heat up.
The gas valve should be used to make any necessary adjustments to ensure safe combustion.
At this point do not adjust the air or head settings unless absolutely necessary.
5) Allow burner to run until normal operating temperatures and conditions have been achieved.
6) a) Clock the gas meter to determine actual burner output.
b) Set the manifold pressure, by adjusting the gas valve, to achieve desired output.
c) Check combustion gases once again to ensure safe operation.
Make sure the burner cover is in place and air gate locking screws are secure for all combustion analysis.
Adjust air gate if necessary (refer to page 11). A qualified technician must do this test.
The maximum recommended CO
2
level for natural gas is 10%; the maximum recommended level for propane
gas is 12%. The recommended flue gas temperature is from 350°F to 550°F.
7) After completing the adjustments, remove the manometer and tighten the screw inside the manifold test point. Re-
place the regulator cap on the gas valve.
8) Complete the adjustment data tag, described on page 15.
Explain the burners essential functions (starting and stopping) to the owner.
Do not forget to give the dealer or service company's name and address.
Please see page 15 for information on burner maintenance procedures.
NOTE: Do not assume the heating system is operating at optimum performance.
THERE IS NO SUBSTITUTE FOR PROPER COMBUSTION TESTING!
OPERATING FAULTS
The integrated control system is self-checking.
The cycle from start up to flame establishment, takes approximately 70 seconds.
The burner will go into lockout under the following circumstances:
a) Burner fails to ignite;
b) The ionization probe is grounded;
c) Opening of the air pressure switch or the normally open contacts of the air pressure switch not making.
Should overheating of the appliance occur, shut off the manual gas valve to the burner.
Do NOT shut off the switch to the circulating pump or blower fan.
SHUT DOWN PROCEDURE
Switch off electrical power to the unit. Close the manual supply gas valve.
START UP PROCEDURE
See page 7.
NOTE:
If an external electrical source is utilized, the conversion burner, when installed, must be electrically grounded in
accordance with local codes.
In the absence of local codes, refer to the National Electrical Code, ANSI/NFPA 70-1990.
In Canada follow the Canadian Electrical Code Part 1 CSA C22.1.
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