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Make Gas Connections - Whirlpool WPG Installation Instructions Manual

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To Change Orifices
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
1. Disconnect power.
2. Remove the burner access panel.
3. Disconnect the 2 wires from the gas control valve.
4. Disconnect the roll-out switch and flame sensor wires from
the burner assembly.
5. Remove the manifold pipe from the burner assembly by
removing the 4 mounting screws.
1
2
1. Orifice locations
2. Manifold
6. Slide the manifold pipe (with gas control valve) forward and
out of the control compartment.
7. Remove the orifices from the manifold with a ⁷⁄₁₆ in. wrench.
8. Install the correct orifices into the manifold.
NOTE: Make sure that the orifices are straight and positioned
at a 90° angle to the manifold.
9. Reinstall the manifold to the manifold bracket with the 4
screws removed earlier.
10. Reconnect the 2 wires on the gas control valve.
11. Reconnect rollout switch and flame sensor wires.
12. Replace the burner access cover.
13. Reconnect power.

Make Gas Connections

IMPORTANT: This furnace requires conversion for use with
propane. To order the correct conversion kit, see "Accessories."
1. Install the field gas supply for either the side gas pipe entry or
the bottom gas pipe entry as shown in "Side Gas Pipe Entry"
and "Bottom Gas Pipe Entry" sections.
2. Provide a sediment trap on the outside of the furnace section.
3. Install a manual gas shutoff valve in the gas line, outside the
unit in accordance with any local codes.
4. Install a test gauge connection with a ¹⁄₈ in. NPT plugged
tapping immediately upstream of the manual gas shutoff
valve as shown.
5. Connect the gas pipe to the furnace controls providing a
ground joint union as close to the controls as possible to
facilitate removal of controls and manifold. Pipe-joint
compounds suitable for use with natural and LP gas must be
used. Do not use Teflon
®
Side Gas Pipe Entry
Side entry is the usual method of routing the gas supply to the
unit. Use the factory provided grommet to seal the opening
around the gas pipe preventing rain and moisture from entering
the unit around the gas pipe and reduce noise.
1
2
3
1. Manual gas shutoff valve
¹⁄₈
2.
in. NPT plugged tapping
3. Sediment trap
®Teflon is a registered trademark of E.I. Dupont de Nemours and
Company.
tape.
6" Min.
4. Ground joint union
5. Grommet
4
5
9

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