Allied Air A80DS2V, Installation Instructions Manual

Page: 47 / 63

506892-01 Page 47 of 64 Issue 1251
11. To clean burners, run a vacuum cleaner with a soft brush
attachment over the face of burners. Visually inspect
inside the burners and crossovers for any blockage
caused by foreign matter. Remove any blockage. Figure
31 shows burner detail.
12. To clean the combustion air inducer visually inspect and
using a wire brush clean where necessary. Use
compressed air to clean off debris and any rust.
13. Reinstall heat exchanger in vestibule. (Replace the five
screws in the cabinet from step 9 if removed).
14. Reinstall collector box, combustion air assembly, internal
flue pipe and flue chase. Seal with high temperature
RTV. Reinstall all screws to the collector box and
combustion air inducer. Failure to replace all screws
may cause leaks. Inspect gaskets for any damage and
replace if necessary.
15. Reinstall burner box, manifold assembly and burner box
cover.
16. Reconnect all wires.
17. Reconnect top cap and vent pipe to combustion air
inducer outlet.
18. Reconnect gas supply piping.
19. Turn on power and gas supply to unit.
20. Set thermostat and check for proper operation.
21. Check all piping connections, factory and field, for gas
leaks. Use a leak detecting solution or other preferred
means.
NOx Inserts
Figure 32
Some soaps used for leak detection are corrosive to
certain metals. Carefully rinse piping thoroughly after
leak test has been completed. Do not use matches,
candles, flame or other sources of ignition to check for
gas leaks.
CAUTION
22. If a leak is detected, shut gas and electricity off and
repair leak.
23. Repeat steps 21 and 23 until no leaks are detected.
24. Replace access panel.
Figure 33
Remove five screws if necessary
(either side of cabinet)