A.O. Smith ProMax SL User Manual

Residential Gas Water Heaters

POWER DIRECT-VENT

PROMAX ®SL POWER DIRECT-VENT FEATURES

POWER DIRECT-VENT DESIGN

ProMax SL Power Direct Vent residential gas models are equipped with FVIR technology to meet Phase III of the ANSI Z21.10.1 standards for the resistance to ﬂammable vapor ignition and resistance to lint, dust and oil accumulation tests.

The Closed-combustion two-pipe system draws combustion air from outside and vents outside the home. The system uses PVC, CPVC or ABS pipe and vents up to 45 feet with 3" pipe, including one elbow.

SIDE-MOUNTED RECIRCULATING TAPS

For installation with combination space heating/potable water heating applications (such as the ProMax XL Heat Exchanger) or any system requiring a recirculating hot water loop.

INTELLI-VENT®GAS CONTROL

Equipped with silicon nitride hot surface igniter and advanced electronics for precise control of water temperature and simpliﬁed system diagnostics.

HEA T TRAP NIPPLES

Standard on all models.

QUIET MODULAR BLOWER

With 110/120 Volt electrical system (rating 3 amps or less), with 6-foot cord, standard

3-prong male connector.

A. O. SMITH DYNACLEAN™DIFFUSER DIP TUBE

Reduces lime and sediment buildup, maximizes hot water output. Made from long-lasting PEX cross-link polymer.

GREEN CHOICE™GAS BURNER

Patented “Eco-Friendly” design reduces NOx emissions by up to 33%, complies with Southern California and Texas requirements.

MAGNESIUM ANODE RODS

Provides long-lasting protection against tank corrosion.

DURABLE T AMPER-RESISTANT BRASS DRAIN V ALVE A. O. SMITH PERMAGLAS

Protects steel tank from rust.

FACTOR Y-INSTALLED TEMPERATURE & PRESSURE (T&P) RELIEF VALVE CODE COMPLIANCE: U.B.C., S.B.C.C., C.A.B.O., H.U.D., B.O.C.A. NA TIONAL CODES, ASHRAE/IES 90.1-1999 AND 2004 NAECA

DESIGN-CERTIFIED BY CSA INTERNATIONAL

According to ANS Z21.10.1 standards governing storage-type water heater.

6-YEAR LIMITED T ANK AND PARTS W ARRANTY

For complete information, consult written warranty or A. O. Smith Water Products Company.

GLASS COA TING

* Intelli-Vent®is a registered trademark of the Emerson Electric Company

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Revised August 2007R

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L.1

RESIDENTIAL

POWER DIRECT-VENT

Gas Water Heaters

FIRST

ENERGY

FACTOR

.60

.58

GALLON

CAPACITY

MODEL

NUMBER

GPD-40L 73 .59 40 40,000 † 30,000 † 41 16 57 48-1/2 21 15 8 42 17 42 224

GPDX-50L 80 .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 123 .53 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.

HOUR

RATING PER HOUR PER HOUR GALLONS

GALLONS NATURAL NATURAL PER HOUR (LBS.)

105

130

50-Gallon: 60,000 BTU input, 43,800 BTU output. 75-Gallon: 65,000 BTU input, 49,400 BTU output.

BTU BTU RECOVERY

INPUT OUTPUT 90ºF RISE

VALUE

DIMENSIONS IN INCHES APPROX.

SHIPPING

ABCDE FGH

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.

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.

11.5" MIN.

FROM TOP OF

HEATER TO

CENTER LINE

OF FLUE

3" VENT

WEIGHT

IMPORTANT : SEE INST ALLATION MANUAL FOR COMBUSTION AIR AND VENTING SYSTEM REQUIREMENTS FOR POWER DIRECT-VENT WATER HEA TERS

1/2" GAS

OPTIONAL (DELUXE) ROUND HORIZONT AL

CONNECTION

VENT TERMINA TION KIT

Part Number 9002749

OPTIONAL (DELUXE) SQUARE HORIZONT AL VENT TERMINA TION KIT

Part Number 9003328

Maximum hydrostatic working pressure: 150 psi

For Technical Information and Automated Fax Service, call 800-527-1953.

500 Tennessee Waltz Parkway, Ashland City, TN 37015

A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

www.hotwater.com

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