Specifications

3
MAIN
GAS
VALVE
MANIFOLD
MOUNTING
SCREWS
MANIFOLD
MOUNTING
SCREWS
MANIFOLD
PRESSURE
TAP PLUG
C07450
Fig. 3 -- Main Burner Section (48PG03--07 Shown)
FIRE HAZARD
Failure to follow this warning could result in personal injury
and/or death.
Never use a match or other open flame to check for leaks. Use
a soap and water solution.
!
WARNING
EXPLOSION HAZARD
Failure to follow this warning could result in personal injury
and/or death.
If unit is equipped with a 2--stage gas valve, ensure valve has
energized second stage (high fire) before adjusting manifold
pressure.
!
WARNING
7. Verify that manifold pressure is between 3.2 and 3.5--in. wg
while in high fire (W2 energized). Readjust pressure if
necessary.
EXPLOSION HAZARD
Failure to follow this warning could result in personal injury
and/or death.
This unit is designed to operate at 3.5--in.wg (±0.3--in. wg)
manifold pressure.
!
WARNING
8. Shut down unit by turning down thermostat, shutting off
manual gas valve, and shutting down power to unit.
9. Remove pressure gauge or manometer and replace
manifold pressure tap plug.
10. Start up unit. With burners ignited, check pressure tap plug
for gas leaks. Repair if necessary.
11. Close and secure gas section access door.
12. Set thermostat to desired temperature.
13. Remove warning tags from disconnect switch and gas
supply shutoff valve.