A.O. Smith GPHE-50 Technical Documents

A.O. Smith Water Heater Technical Documents - GPHE-50.
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Revised October 2012

                                                                                                                  CANRG45100

VERTEXTM 90% THERMAL EFFICIENCY

CONTINUOUS HOT WATER 

VERSATILE POWER VENT DESIGN

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 more hot water

than a standard 75-gallon atmospheric gas water heater. In fact, the fully

condensing Vertex design is so advanced, it can deliver “continuous hot water

for shower after shower”...a constant 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

    Spiral heat exchanger keeps hot combustion gases in the tank longer to    

 

lengthen the heat transfer cycle 

    Positioned in the center of the tank for more even heat distribution 

    Operates at 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 runs terminating through an outside wall.  

 

Installations require ULC s636 approved PVC or CPVC pipe for venting.

 

 

- 2” pipe, vents up to 45 equivalent feet

 

 

- 3” 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-VENTTM** 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 CoatTM 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 maximum protection against corrosion

CSA CERTIFIED AND ASME RATED T&P RELIEF VALVE
MAXIMUM HYDROSTATIC WORKING PRESSURE: 150 PSI

Residential Gas Water Heaters 

GPHE-50

SERIES 100

* 3.07 GPM continuous flow, based on 65°F inlet water temperature, 110°F outlet temperature. 
**Intelli-VentTM is a registered trademark of Emerson Electric Company

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