Hood, Draft | A.O. Smith HW/HWB 300 THRU 670 specs

	Item	Parts Description					HW 300	HW 399/420	HW 520	HW670
	Item	Parts Description					HW 300	HW 399/420	HW 520	HW670
27		Grommet					96053	96053	96053	96053
28		Hood, Draft:
	..........	Series 100				190479-700 ..		98428-707/98428-704 ....	98428-704	98428-8
	..........	Series 101				190479-700 ..		98428-707/98428-704 ....	98428-704	98428-700
30		Insulation, Blanket					212042-2	212042-3	212042-4	212042-5
31		Insulation, Pyrofelt					212043	212044	212044	212044
32		Insulator					32779-1	32779-1	32779-1	32779-1
33		Jacket					211176	211177	211178	211178
34		Leg					96383-711	96383-701	96383-701	96383-701
35		Nut, Tie Rod	.................................................				85138	85138	85138	85138
36		Nut, Wing					- - - -	1995-1	1995-1	1995-1
37		Orifice, Pilot Burner:
	..........	Natural Gas					6210	6210	6210	6210
	..........	Propane Gas					210913	210913	210913	210913
38		Plug, Pipe 1/8" Pressure Tap					3348	3348	3348	3348
39		Retainer, Door					190429	190429	190429	190429
40		Ring, Support					95359	85405	85405	85405
41		Rod, Tie (3 Required)		................................... - - - -				94453-11	94453-3	94453-3
		Rod, Tie (3 Required)			HW
	..........	Rod, Tie (2 Required)					94453-6	- - - -	- - - -	- - - -
	..........	Rod, Tie (1 Required)					94453-2	- - - -	- - - -	- - - -
42		Screen, Peep Hole					1051	1051	1051	1051
43		Screw, Thumb					97288	97288	97288	97288
44		Shield, Base Radiation			..............................		96015-1	96015	96015	96015
45		Shield, Door					191119	191119	191119	191119
46		Shield, Floor	..................................................				- - - -	96025	96025	96025
47		Shield, Leg					97265	97265	97265	97265
48		Shield, Pilot					170247	170247	170247	170247
49		Skirt Assembly					97260	97261	97262	97262
50		Stud, Floor Shield					- - - -	96384	96384	96384
51		Switch, Safety Flow
	..........	(Required but not supplied with unit)					.. 211480	211480	211480	211480
52		Tape, Asbestos Free (Used with Item 40)					... 95072	95072-1	95072-1	95072-1
53		Terminal, Segment (4 Required)					98205	98205	98205	98205
54		Thermal Balancer			HW98190 .................... 98190				98190	98190
55		Red			HW				69170-10	69170-10
55		Transformer	..............................................				69170-10	69170-10	69170-10	69170-10
56		Tube, Asbestos Free					68831	68831	68831	68831
57		Tube, By-Pass					96162-1	94451-3	97463	97463
58		Tubing, 1/4" x 60" Wire Assorted Fittings
	..........	(User to cut to required length)					1417-60	1417-60	1417-60	1417-60
59		Valve, Gas Control:
	..........	Natural Gas (Series 100)					78450	78450-4/78450	78450	78450
	..........	Propane Gas (Series 101)					78450-1	78450-5/78450-1	78450-1	78450-1
60		Valve, Relief 50 PSI					210451	210451-1	210451-1	210451-1
61		Wire, 200°C Tan with Terminals					6226	6226	6226	6226
62		*Wire, (See illustration for terminals —
	..........	Order as required):
	..........	16 AWG Stranded, 1050C, AWM & TEW
	..........	Black					86578	86578	86578	86578
	..........		................................................. 86579					86579	86579	86579
	..........	White					86580	86580	86580	86580
	..........	18 AWG Stranded, 200°C
	..........	Tan	.................................................				78223	78223	78223	78223
63		Wire, Ground, 250°C					170889-69	170889-69	170889-69	170889-69
64		Standard hardware items to be purchased locally.
65		Glass Yarn (4 Req’d.)					68831-2	68831-3	68831-3	68831-3
66		Glass Yarn (4 Req’d.)					68831-5	68831-4	68831-6	68831-6
67		Valve - Manual Shut Off			................................		3423-5	3423-4	3423-3	3423-3
68		Baffle (5) location inside tubes					211931	- - - -	- - - -	- - - -
69		Baffle-V (2) location outside tubes					192263	- - - -	- - - -	- - - -
70		Baffle-V (7)					- - - -	192263-2	192263-2	- - - -
71		Pilot Valve					200683	200683	200683	200683
72		Standard hardware - purchase locally					- - - -	- - - -	- - - -	- - - -
73		Shield - Radiation					211822	- - - -	- - - -	- - - -
74		Shield Radiation Base			................................ 211824			- - - -	- - - -	- - - -
		Shield Radiation Base			HW
75		Base Leg					211827	- - - -	- - - -	- - - -

*Items not illustrated.

When ordering wire, indicate length required in inches. (Example: 86578-100 equals 100" length).

Part numbers underlined are recommended stock items for emergency replacement. (Consider gas used in your area only).

HW/HWB 300 THRU 670 specifications

A.O. Smith HW/HWB series is designed to provide reliable hot water solutions for residential and commercial needs. The HW/HWB 300 THRU 670 models are engineered to deliver consistent performance while maintaining energy efficiency, catering to a variety of applications.

One of the main features of the HW/HWB series is its high-capacity design. The range includes models robust enough to handle demands for both small and large properties. With storage capacities that can accommodate extensive hot water needs, these water heaters ensure that users never run out of hot water during peak usage times.

The HW series employs advanced heating technologies that contribute to efficient thermal performance. They utilize a highly effective heat exchanger design, which promotes faster heating times and reduces energy waste. This results in lower utility bills and a minimized carbon footprint, aligning with contemporary energy-saving standards.

In addition to heating efficiency, these models are designed with durability in mind. The tanks are constructed from high-quality materials that are resistant to corrosion and scaling, extending the lifespan of the unit. A.O. Smith also incorporates advanced insulation technology, reducing heat loss and enhancing energy savings.

Another significant characteristic is the HW/HWB series’ ease of installation and maintenance. The design includes accessible entry points for connections, allowing for quick installation even in tight spaces. Additionally, the built-in diagnostic features facilitate maintenance, enabling users to detect potential issues before they escalate, ensuring continuous operation.

Safety is paramount, and the HW/HWB series comes equipped with several safety features. These include temperature and pressure relief valves that prevent potential hazards, promoting safe operation over the life of the unit.

Overall, the A.O. Smith HW/HWB 300 THRU 670 series combines capacity, efficiency, and durability with user-friendly features. Its advanced technologies cater to diverse hot water needs while ensuring cost effectiveness and reliability, making it a preferred choice for those seeking dependable hot water solutions. Whether for a residential setting or a commercial environment, these models stand out for their quality and performance.

A.O. Smith HW/HWB 300 THRU 670 manual Hood, Draft

Models: HW/HWB 300 THRU 670

Parts Description

96053

Hood, Draft:

Base Leg

HW/HWB 300 THRU 670 specifications