Residential Gas Water Heaters
CLOSED COMBUSTION
POWER DIRECT-VENT
POWER DIRECT-VENT DESIGN
ProMax 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 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-VENT® GAS CONTROL
Models are equipped with silicon nitride hot surface igniter 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-link polymer.
An A. O. Smith Exclusive
Aluminum anode with stainless steel core protects tank against corrosion longer than
ordinary mild steel anodes.
COREGARD™ ANODE ROD -
GREEN CHOICE™ GAS BURNER
Patented “Eco-Friendly” design reduces NOx emissions by up to 33%, complies with
Southern California and Texas requirements.
DURABLE TAMPER-RESISTANT BRASS DRAIN VALVE
A. O. SMITH PERMAGLAS® GLASS COATING
Protects steel tank from rust.
FACTORY-INSTALLED TEMPERATURE & PRESSURE (T&P) RELIEF VALVE
CODE COMPLIANCE: UBC, SBCC, CABO, HUD, BOCA NATIONAL 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 TANK AND PARTS WARRANTY
For complete information, consult written warranty or A. O. Smith Water Products Company.
Page 1 of 2
Created October 2008
AOSRG45900
Residential Gas Water Heaters
CLOSED COMBUSTION
POWER DIRECT-VENT
FIRST
BTU
RECOVERY
90ºF RISE
APPROX.
SHIPPING
WEIGHT
(LBS)
DIMENSIONS IN INCHES
MODEL
HOUR ENERGY GAL.
INPUT
R
BLOWER
OUTLET
NUMBER RATING FACTOR CAP. PER HOUR GALLONS VALUE*
A
B
C
D
E
F
†
GALLONS
NATURAL PER HOUR
GPD-40
GPD-50
GPDX-50
GPD-75
70
.60
.59
.58
.58
40
50
50
75
40,000
40,000
65,000
70,000
41
41
64
72
16
16
16
16
57
66
48-1/2
57-1/2
61
21
21
21
15
15
15
8
8
8
8
42
3
3
3
3
224
232
232
300
87
51
105
130
69-1/2
54-1/2
54-3/4
71-1/2 61-1/2 26-1/4 15-1/2
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
C
E
GPD-75: 65,000BTU/67GPH
*R Value shown is “performance rated.”
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.
4"
3" VENT
11.5" MIN.
FROMTOP OF
HEATERTO
CENTER LINE
OF FLUE
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
F
B
A
1/2" GAS
CONNECTION
OPTIONAL (DELUXE) SQUARE HORIZONTAL
VENT TERMINATION KIT
Part Number 9003328
D
Maximum hydrostatic working pressure: 150 psi
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.
Page 2 of 2
Created October 2008
AOSRG45900
|