A.O. Smith 401, 400 DIMENSIONS/CAPACITIES Data, GAS and Electrical Requirement, Dimensional Data

DIMENSIONS/CAPACITIES DATA

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TABLE 1: GAS AND ELECTRICAL REQUIREMENT

MODEL	Manifold Pressure		Electrical Characteristics
	Type of Gas	Inches W.C.		kPa	Volts/Hz	Amperes
GW/GB-1000
thru 2500	NATURAL	3.5		0.87	120/60	30
GW/GB-1000
thru 2500	PROPANE	10		2.49	120/60	30

All Models - Maximum Supply Pressure: 14.0 In. W.C. (3.49 kPa)

Minimum Supply Pressure Natural Gas: 6.0 In. W.C. (1.22 kPa)

Minimum Supply Pressure Propane Gas: 11.0 In. W.C. (2.74 kPa) Minimum Pressures must be maintained during operating conditions.

Figure 1.

IMPORTANT!

Refer to "Installation Clearances" section of manual (page 7) for recommended service clearances prior to boiler placement.

LEFT SIDE

REAR VIEW

TABLE 2. DIMENSIONAL DATA

		A		B		C		D			E		F
Model	Inches	c m	Inches	c m	Inches		c m	Inches	c m	Inches	c m	Inches	c m
GW/GB-1000	14.1	35.8	12.2	31.0	40.3		102.4	31.6	80.3	26.0	66.0	46.8	118.9
GW/GB-1300	24.8	63.0	12.2	31.0	40.3		102.4	31.6	80.3	39.3	99.8	57.3	145.5
GW/GB-1500	30.2	76.7	12.2	31.0	40.3		102.4	31.6	80.3	44.6	113.3	64.3	163.3
GW/GB-1850	27.7	70.4	11.2	28.4	43.0		109.2	32.3	82.0	44.0	111.8	78.3	198.9
GW/GB-2100	31.0	78.7	11.2	28.4	43.0		109.2	32.3	82.0	49.5	125.7	85.3	216.7
GW/GB-2500	38.1	96.8	10.5	26.7	43.0		109.2	32.3	82.0	56.5	143.5	99.3	252.2

		Input Rating			Exhaust		Air Intake
	BTU/Hr.	KW	BTU/Hr.	KW	Vent Diameter		Diameter		Water Conn.	Gas Inlet
Model	Natural Gas	Natural Gas	Propane Gas	Propane Gas	Inches	c m	Inches	c m	Size
GW/GB-1000	990,000	289.95	990,000	289.95	10	25.4	8	20.3	2 1/2 NPT	2 NPT
GW/GB-1300	1,300,000	380.74	1,300,000	380.74	12	30.5	10	25.4	2 1/2 NPT	2 NPT
GW/GB-1500	1,500,000	439.31	1,500,000	439.31	12	30.5	10	25.4	2 1/2 NPT	2 NPT
GW/GB-1850	1,850,000	541.82	1,850,000	541.82	14	35.6	10	25.4	2 1/2 NPT	2 1/2 NPT
GW/GB-2100	2,100,000	615.04	2,100,000	615.04	14	35.6	12	30.5	2 1/2 NPT	2 1/2 NPT
GW/GB-2500	2,490,000	729.26	2,490,000	729.26	16	40.7	12	30.5	2 1/2 NPT	2 1/2 NPT

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