SECTION 15: GAS PIPING
37
FIGURE 18: ANSI/FM/XL-Compliant Manifolds (XT-112)
FIGURE 19: ANSI-Compliant Manifold (XT-115 - XT-130)
Alternate
Inlet
Inlet
Drip
Leg
By Others
Burner
Regulator With Dual Safety Shut Off Valve
Modulating Valve
High Gas Pressure Regulator (Optional For ANSI-Compliant Manifolds and supplied for FM and XL-Compliant Manifolds)
Manual Gas Valve (Burner)
Manual Gas
Valve (Main)
Combination Valve
Manual Gas
Valve (Pilot)
Vent to Atmosphere (FM and XL Manifold)
Union
(By Others)
NOTE: Vent valves must be piped to the atmosphere outside the structure and in accordance with
applicable codes.
Alternate
Inlet
Inlet
By Others
Combination Valve
Manual Gas
High Gas Pressure Regulator (Optional)
Burner
Modulating Valve With Pressure Regulator
Manual Gas Valve (Burner)
Valve (Pilot)
Drip
Leg
Off Valve
Safety Shut Off Valve
Safety Shut
Manual Gas
Valve (Main)
Union
(By Others)
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