A.O. Smith Vertex GPHE-50 User manual

GAS-FIRED
Residential Gas Water Heaters
90% THERMAL EFFICIENCY
ENDLESS HOT WATER
VERSATILE POWER-VENT DESIGN
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GPHE-50
Today’s homes demand more hot water than ever before, and the 90% efficient
Vertex power-vent gas water heater offers unprecedented levels of performance to
meet the need. The 50-gallon Vertex delivers hot water output that rivals a 75-gallon
atmospheric gas water heater. In fact, the fully condensing Vertex design is so
advanced, it can deliver “endless hot water for showers”…a continuous flow of over
3 gallons per minute.* Yet Vertex is easy to install, with height, diameter and
installation requirements similar to standard power-vent units.
HELICAL INTERNAL HEAT EXCHANGER
• Completely surrounded by water in tank, provides much greater heat transfer
surface than standard straight flue tube
• Helps produce 90% thermal efficiency, which saves money on operating costs
compared to a standard 78% efficient gas water heater
POWER VENTS USING PVC PIPE
• Combined vertical and horizontal vent runs terminating through an outside wall,
using Schedule 40 PVC pipe
• 2" pipe, vents up to 25 equivalent feet
• 3" pipe, vents up to 65 equivalent feet
• 4" pipe, vents up to 128 equivalent feet
MODULAR BLOWER
• Equipped with 120 volt, 60 Hz electrical system (rating 5 amps or less), 6-foot
cord with standard 3-prong connector
• 2" PVC pipe, elbows and condensate drain supplied to connect heat exchanger
outlet to blower
• PVC Vent Attenuation Assembly (VAA) supplied
SIDE-MOUNTED HOT AND COLD RECIRCULATING TAPS
• Allows Vertex to be installed as part of combination space heating/water heating
applications or any system requiring a recirculating hot water loop, including
radiant floor heating
INTELLI-VENT™GAS CONTROL
• Equipped with nearly indestructible silicon nitride hot surface ignitor —
no standing pilot
• Advanced electronics for more precise control of water temperature and easy
to understand system diagnostics
COMMERCIAL GRADE GLASS LINING
• A. O. Smith PermaGlas®Ultra Coat™process provides superior protection
against corrosion
• Protects all interior tank surfaces including inside and outside of helical
heat exchanger
TWO HEAVY-DUTY ANODE RODS
• Provide even more protection against corrosion
GREEN CHOICE®GAS BURNER
• Patented “eco-friendly” design reduces NOx emissions by up to 33%
and complies with Southern California and Texas requirements
FACTORY-INSTALLED TEMPERATURE AND PRESSURE RELIEF VALVE
MAXIMUM HYDROSTATIC WORKING PRESSURE: 150 PSI
* 3.07 GPM continuous flow, based on 65ºF inlet water temperature, 110º outlet temperature. Page 1 of 2
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www.hotwater.com
(B)
* INSTALL IN ACCORDANCE WITH LOCAL CODES
TOP VIEW
ANODE
(J)
(H)
(K)
HOT COLD
(A)
(C)
(G)
(F)
(D)
(E)
DIAMETER
SIDE INLET
THERMOSTAT
DRAIN
VALVE
T & P VALVE SIDE OUTLET
OUTLET (L) (L)
INLET
FRONT VIEW
GPHE-50
MODEL
NUMBER
BTU
INPUT
PER
HOUR
76,000
GALLON
CAPACITY
50
SHIPPING
WEIGHT
LBS
210
FIRST
HOUR
DELIVERY
GALLONS
127
RECOVERY
90°F RISE
GALLONS
PER HOUR
92
* Natural gas only
DIMENSIONS IN INCHES
70-5/8
AMODEL
GPHE-50 68-1/4
B
52
C
21
D
9-1/8
E
12
F
22
G
8
H
15-3/4
J
27
K
Inlet and outlet connections: 3/4" male
Circulation loop connections: 3/4" female
RESIDENTIAL Gas Water Heaters
A. O. Smith Corporation
500 Tennessee Waltz Parkway, Ashland City, TN 37015
For Technical Information and Automated Fax Service, call 800-527-1953.
A. O. Smith reserves the right to make product changes or improvements without prior notice.
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Printed in U.S.A. AOSR-111781-10M©2006 A. O. Smith Corporation
VERTEX™90% THERMAL EFFICIENCY POWER-VENT
CODES AND STANDARDS
• Design-certified by UL (Underwriters Laboratories) according to ANS Z21.10.3
• Meets or exceeds ASHRAE/IESNA 90.1-1999 and 2004 NAECA
SIX-YEAR LIMITED TANK AND PARTS WARRANTY
• For complete warranty details, consult written warranty shipped with heater or contact A. O. Smith
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