Page 6
Start-Up And Adjustments
1- Replace heat section access panels and mullion.
2- Close heat section access panel.
A-To place unit in operation:
1- Turn main manual shut-off valve on.
WARNING
Danger of explosion. Can cause injury
or death. Do not attempt to light
manually. Unit has a direct spark
ignition system.
2- Wait five minutes, then open manual knob on gas
valve and replace compressor access panel.
3- Restore electrical supply to unit and set fan switch to
“Auto” or “On.” Move system selection switch to
“Heat” and adjust thermostat setting above room
temperature.
4- The combustion air blower will start and burners will
light within 40 seconds.
5- If burners do not light first time (gas line not fully
purged), ignition system will attempt to light two more
times before locking out gas valve operation.
6- If lockout occurs, repeat steps 1, 2 and 3 above.
B-To shut down unit operation:
1- Set thermostat selection switch to “Off” position,
remove heat control access panel and turn manual
knob on gas valve to “Off” position.
2- Replace heat control access panel.
C-Heating Adjustment
Check gas line pressure with unit firing at maximum rate.
A minimum of 10.8” w.c., and a maximum of 13.5” w.c.
should be maintained. Manifold pressure is preset as
shown on the appropriate conversion label provided in
this kit.
No adjustment should be necessary. On multiple unit
installations, each unit should be checked in sequence
beginning with the one closest to the supply gas main and
progressing to the one furthest from the main.
Identifying Unit As LP Converted
1- Locate 580207-04, -05, and -06 conversion plate
labels provided in kit. Select the appropriate label and
discard the other two labels.
Note - 21A02 kits have one conversion plate; there are no
further labels to discard.
2- Make a check mark in the appropriate box on the
conversion plate corresponding to unit model number
shown on nameplate. Affix appropriate conversion
plate near unit nameplate.
3- Complete installer information on converter sticker
and affix to vestibule panel. Affix acrylic sheet over
converter sticker.
