Residential Gas Water Heaters

DIRECT-VENT

 

 

FIRST

 

 

BTU

RECOVERY

 

DIMENSIONS IN INCHES

 

 

APPROX.

 

MODEL

HOUR

ENERGY

GAL.

90ºF RISE

 

 

 

 

 

 

VENT

SHIPPING

 

NUMBER

RATING

FACTOR

CAP.

INPUT

GALLONS

A

B

C

D

E

F

OUTLET*

WEIGHT

 

PER HOUR

 

 

GALLONS

 

 

 

PER HOUR

 

 

 

 

 

 

 

(LBS)

 

GDV-40

73

.62

40

38,000

41

68

54-3/4

22-1/4

16

12-1/4

45-1/4

Co-Axial

167

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GDV-50

87

.60

50

42,000

45

76

63-3/4

22-1/4

16

12-1/4

54

Co-Axial

185

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GDVT-50

88

.59

50

50,000

55

76

64-3/4

22-1/4

16-1/4

12-1/2

55-1/2

Co-Axial

187

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GDV-75

131

.59

75

55,000

60

76

65-3/4

26-1/4

16-1/4

12-1/2

55-1/2

Co-Axial

310

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Recovery capacities based on actual performance tests.

*Dual-channel system has 3˝ vent pipe inside 6˝ air intake pipe, for the 40 & 50 gallon models. The 75 gallon model uses a 4” x 7” co-axial pipe.

All Models Have 2” Foam Cavity. Water connection 3/4” male all models.

75 gallon water connections are 12” on center.

Important! Vent Installation and Termination Requirements

40 & 50 gal.

25-1/4

25-1/4

75gal.

29-1/2

T&P

42°

DRAIN

nMaximum horizontal vent distance is 80” to outside of exterior wall.

nMinimum horizontal vent distance is 17” to outside of exterior wall.

nVent pipes may be trimmed (cut) for short vent installations.

nFor vent installation less than 30” the vent restrictor is required.

Place restrictor over the flue outlet on heater before installing the outlet vent pipe to the heater.

nRecommended installation height for the heater vent pipe should be 68” for 40 gallon models and 76” for the 50-gallon and 75-gallon models (vent height).

nOffset Vent Arrangement

1.When replacing an existing direct vent model, the new vent pipe may drop from the minimum vent height as much as 7 1/4” to exit through the existing vent opening in the exterior wall.

2. Vent may have one horizontal 90 degree turn before exiting through exterior wall (Do not combine both offset vent arrangements in one installation) (See examples in the installation manual)

nHigh Rise Vent Arrangement

3.When vent termination is more than 80” above the base of the heater. The horizontal vent run must be a minimum of 22” from the center of the heater to

the outside exterior wall surface. (See example in the

C

installation manual)

 

nVent termination clearance hole through the exterior

wall should be approximately 7” diameter.

A

B

 

nSnow accumulation and drifting should be considered when locating the termination.

nAn optional wire grill vent cap protector is available through the parts department. Part number 9006627.

nSee the installation manual for complete installation and venting requirements.

D

MIN VENT 17

MAX VENT 80

6” DIA. on 40 & 50 Gal. Models

7” DIA. on6 75DIAGal. . Models

F

E

47°

TOP

75 gal. vent termination cap is not interchangeable with vent cap on 40 & 50 gal. models

EXTERIOR

WALL

FRONT

For Technical Information and Automated Fax Service, call 800-527-1953. A.O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

Revised April 2008

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AOSRG45700

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A.O. Smith AOSRG45700 warranty First BTU
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AOSRG45700 specifications

The A.O. Smith AOSRG45700 is a standout model in the realm of high-efficiency gas water heaters, offering a blend of performance, durability, and advanced technology. Built with a commitment to innovation, this water heater is designed to meet the needs of modern household demands while ensuring energy efficiency, making it a popular choice for homeowners looking to save on utility costs.

One of the key features of the AOSRG45700 is its high first-hour delivery rate, making it ideal for households with significant hot water needs. This feature ensures that users have enough hot water available, even during peak times, providing peace of mind when multiple appliances or fixtures are in use simultaneously.

The A.O. Smith AOSRG45700 employs advanced technology through its EnergySmart features. This innovative technology allows the water heater to optimize energy usage, adjusting the heating elements based on real-time demand. As a result, homeowners can enjoy not only substantial energy savings but also a reduced carbon footprint, making it an environmentally friendly option.

This model is equipped with a long-lasting, blue diamond glass coating, which enhances tank durability by providing superior corrosion resistance. This coating helps extend the life of the water heater, protecting it against the harsh elements that can lead to tank failure over time.

In terms of safety, the AOSRG45700 includes features like a thermostat that helps maintain consistent water temperatures, reducing the risk of scalding. Additionally, it has a built-in Flame Rollout Switch that adds an extra layer of protection by shutting down the unit in case of a malfunction.

Installing the A.O. Smith AOSRG45700 is straightforward, with options that suit various home layouts. The compact design makes it capable of fitting into tight spaces, which is a significant advantage for urban homes where space is limited.

Overall, the A.O. Smith AOSRG45700 is an exceptional gas water heater that combines efficiency, durability, and advanced technology to meet the evolving needs of today's consumers. With its impressive features and commitment to safety, it's a reliable choice for any household seeking consistent hot water supply at reduced energy costs.
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