Lochinvar 502 - 2072, 402 - 2072 service manual Maintenance continued, B Net Manifold Pressure

Copper-fin II/IIE Boiler, Water Heater and Pool Service Manual

2 Maintenance (continued)

Figure 2-4_Measuring manifold gas pressure
	PRESSURE
	REGULATOR	CHAMBER
	ADJUSTMENT
MANIFOLD		PRESSURE
	(UNDER CAP
PRESSURE
	SCREW)

INLET	TEE
OUTLET

MANOMETER	GAS	TO BARBED
	VALVE	FITTING
	CONTROL
	KNOB

TABLE 2B

Net Manifold Pressure

Regulator Pressure Less

Front Chamber Pressure

MODEL	Nat. Gas	LP
402 - 752	1.8'' w.c.	4.6’’ w.c.
992 - 2072	1.2'' w.c.	4.6’’ w.c.

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