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11MUA-PRC001-EN
Gas
Piping
Component Identification
GP-09 Pilot Gas Pressure Regulator
GP-11 Main Gas Shutoff Valve
GP-13 Pilot Gas Shutoff Valve
GP-17 Auxiliary Gas Shutoff Valve
GP-18 Auxiliary Gas Shutoff Valve
GP-27 Orificed Needle Valve
VG-01 Pilot Gas Valve
VG-02 Main Gas Valve
VG-03 Auxiliary Gas Valve
VG-04 N/O Vent Valve
VG-07 Maxitrol Modulating Valve
PS-04 Low Gas Pressure Switch
PS-07 High Gas Pressure Switch
Notes:
1
Vents to outside furnished by factory
on outdoor units.
2
Under 825 MBh will require an additional
gas pressure regulator if inlet
pressure exceeds 1 psig.
3
4400 MBh and above will require a
minimum inlet pressure of 1 psig. For
inlet pressure under 1 psig, contact
factory.
4
For inlet pressure under 10” WC, contact
factory.
5
Contact factory for manifold required for
CGA.
*Items PS-04, PS-07, VG-04 and GP-18 are not required to
meet IRI requirements if the unit is ETL approved. Refer to
page 40.