Lennox EL280UHE Series Unit Information page 33

Remove 5 screws if necessary
(either side of cabinet)
FIGURE 25
18 -Reconnect all wires.
19 -Reconnect top cap and vent pipe to combustion air in­
ducer outlet.
20 -Reconnect gas supply piping.
21 -Turn on power and gas supply to unit.
1
22 -Set thermostat and check for proper operation.
2
23 -Check all piping connections, factory and field, for gas
3
leaks. Use a leak detecting solution or other preferred
4
means.
5
Some soaps used for leak detection are corrosive to
certain metals. Carefully rinse piping thoroughly af­
ter leak test has been completed. Do not use
matches, candles, flame or other sources of ignition
to check for gas leaks.
24 -If a leak is detected, shut gas and electricity off and
repair leak.
25 -Repeat steps 24 and 26 until no leaks are detected.
26 -Replace access panel.
Page 33
CAUTION