A.O. Smith ProMax GPDX-50 User manual

POWER DIRECT-VENT DESIGN
ProMax Power Direct Vent residential gas models are equipped with FVIR
technology to meet Phase III of the ANSI Z210.1 - 4.1 CSA standards for the
resistance to flammable vapor ignition and resistance to lint, dust and oil
accumulation tests.
The two-pipe closed-combustion system draws all make-up air from
outside the home, eliminating problems caused by insufficient indoor
ventilation.
The system permits combined horizontal and vertical venting and air intake
runs up to 45 feet (including one 90º elbow) using 3” Schedule 40 PVC,
CPVC or ABS pipe for installation versatility.
INTELLI-VENTTM GAS CONTROL
Models are equipped with silicon nitride hot surface ignitor and advanced
electronics for precise control of water temperature and simplified system
diagnostics.
FACTORY INSTALLED HEAT TRAP NIPPLES
Standard on all models.
QUIET, MODULAR BLOWER
Equipped with 110/120 volt electrical system (rating 3 amps or less), 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-linked polymer.
COREGARD™ ANODE ROD - An A. O. Smith Exclusive
Aluminum anode with stainless steel core protects tank against corrosion longer than
ordinary mild steel anodes.
GREEN CHOICE®GAS BURNER
Patented “Eco-Friendly” design reduces NOx emissions by up to 33%, complies with
NOx requirements of less than 40 ng/j.
DURABLE TAMPER-RESISTANT BRASS DRAIN VALVE
A. O. SMITH BLUE DIAMOND®GLASS COATING
Provides superior corrosion resistance compared to industry-standard glass lining.
CSA CERTIFIED AND ASME RATED T&P RELIEF VALVE
CODE COMPLIANCE: UBC, SBCC, CABO, HUD, BOCA NATIONAL CODES,
ASHRAE/IESNA 90.1 CURRENT EDITION AND 2004 NAECA STANDARDS
DESIGN-CERTIFIED BY CSA INTERNATIONAL
According to ANSI Z21.10.1 - CSA 4.1 governing standards governing storage-type waterheater.
6-YEAR LIMITED TANK AND PARTS WARRANTY
For complete information, consult written warranty or A. O. Smith Water Products Company.
Residential Gas Water Heaters
POWER DIRECT-VENT
Page 1 of 2
AOSRG45900
CLOSED COMBUSTION
®
®
September 2010R

F
D
3" VENT
11.5" MIN.
FROM TOP OF
HEATER TO
CENTER LINE
OF FLUE
1/2" GAS
CONNECTION
BA
E
C
4"
GPDX-50 is supplied with 5’ of 3” ABS vent pipe and must be used for the first 5’ of the exhaust outlet vent system.
GPD-75 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" on all models.
†Propane inputs/recoveries: GPD-40: 36,000BTU/37GPH
GPD-50: 38,000BTU/39GPH
GPDX-50: 60,000BTU/59GPH
GPD-75: 65,000BTU/67GPH
*R Value shown is “performance rated.”
MODEL
NUMBER
FIRST
HOUR
RATING
GALLONS
ENERGY
FACTOR
GAL.
CAP.
BTU
INPUT
PER HOUR
NATURAL†
RECOVERY
90ºF RISE
GALLONS
PER HOUR
R
VALUE* A B C D E F BLOWER
OUTLET
APPROX.
SHIPPING
WEIGHT
(LBS)
GPD-40 70 .60 40 40,000 41 16 57 48-1/2 21 15 842 3224
GPD-50 87 .59 50 40,000 41 16 66 57-1/2 21 15 851 3232
GPDX-50 105 .58 50 65,000 64 16 69-1/2 61 21 15 854-1/2 3232
GPD-75 130 .58 75 70,000 72 16 71-1/2 61-1/2 26-1/4 15-1/2 854-3/4 3300
DIMENSIONS IN INCHES
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.
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 9002749005
OPTIONAL (DELUXE) SQUARE HORIZONTAL
VENT TERMINATION KIT
Part Number 9003328005
Maximum hydrostatic working pressure: 150 psi
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.
Residential Gas Water Heaters
POWER DIRECT-VENT
CLOSED COMBUSTION
2010R Page 2 of 2
AOSRG45900
®
September