A.O. Smith SL warranty Gas Water Heaters, Important Venting and Combustion AIR Requirements

RESIDENTIAL

Gas Water Heaters

POWER DIRECT-VENT

FIRST

BTU

BTU

RECOVERY

DIMENSIONS IN INCHES

APPROX.

MODEL

HOUR

ENERGY

GALLON

INPUT

OUTPUT

90ºF RISE

R

SHIPPING

NUMBER

RATING

FACTOR

CAPACITY

PER HOUR

PER HOUR

GALLONS

VALUE

A

B

C

D

E

F

G

H

WEIGHT

GALLONS

NATURAL

NATURAL

PER HOUR

(LBS.)

GPD-40L

7073

..6059

40

40,000 †

30,000 †

41

16

57

48-1/2

21

15

8

42

17

42

224

GPDX-50L

10580

.58.

50

65,000 †

47,500 †

64

16

69-1/2

61

21

15

8

54-1/2

17

54-1/2

232

GPD-75L

130123

..5853

75

70,000 †

53,200 †

72

16

71-1/2

61-1/2

26-1/4

15-1/2

8

54-1/2

17

54-1/2

352

GPDX-50L is supplied with 5’ of 3” ABS vent pipe and must be used for the first 5’ of the exhaust outlet vent system. GPD-75L is supplied with 5’ of 3” CPVC vent pipe and must be used for the first 5’ of the exhaust outlet vent system. Recovery capacity based on actual performance tests.

Water Connections – 3/4" Male on all models.

†Propane Gas – 40-Gallon: 36,000 BTU input, 27,360 BTU output. 50-Gallon: 60,000 BTU input, 43,800 BTU output. 75-Gallon: 65,000 BTU input, 49,400 BTU output.

IMPORTANT: VENTING AND COMBUSTION AIR REQUIREMENTS

Read and follow requirements shown in the Installation Manual for ProMax® Power Direct-Vent Gas water heaters dealing with type, placement and length of vent pipe and vent termination, as well as clearances required to provide adequate combustion and proper ventilation.

C

E

4"

OPTIONAL CIRCULATING LOOP CONNECTION ASSEMBLIES

Sold separately. Kit Number 900152-2 includes two extended PEX lined nipples for side port connections. Kit Number 900260-4 is same as 900152-2, plus two

di-electric unions and 2 brass isolation valves. For use with systems that have a check valve in the air handler or recirculating lines.

IMPORTANT:

SEE INSTALLATION MANUAL FOR COMBUSTION AIR AND VENTING SYSTEM REQUIREMENTS FOR POWER DIRECT-VENT WATER HEATERS

OPTIONAL (DELUXE) ROUND HORIZONTAL

VENT TERMINATION KIT

Part Number 9002749

11.5" MIN.

FROMTOP OF HEATER TO CENTER LINE OF FLUE

1/2" GAS CONNECTION

D

3" VENT

F H B A

G

OPTIONAL (DELUXE) SQUARE HORIZONTAL VENT TERMINATION KIT

Part Number 9003328

Maximum hydrostatic working pressure: 150 psi

500 Tennessee Waltz Parkway, Ashland City, TN 37015

www.hotwater.com

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 August 2007R ©2007 A. O. Smith Corporation Printed in U.S.A. ARGSS00407