GSW 73992 warranty Electrical Connections, Piping Installation

Page 7

Important: Heat must not be applied to the water fittings

heater, close the shut-off valve in the cold water inlet

on the heater as they may contain nonmetallic parts. If sol-

line.

der connections are used, solder the pipe to the adaptor

Please note the following:

before attaching the adaptor to the hot and cold water fit-

DO NOT install this water heater with iron piping. The sys-

tings.

tem should be installed only with piping that is suitable for

Important: Always use a good grade of joint compound

potable (drinkable) water such as copper, CPVC, or poly-

that is compatible with potable water and be certain that all

butylene. DO NOT use PVC water piping.

fittings are drawn up tight.

DO NOT use any pumps, valves, or fittings that are not

1.Install the water piping and fittings as shown in Figure 4. compatible with potable water.

Connect the cold water supply (1 1/2 in. NPT) to the fit- DO NOT use valves that may cause excessive restriction to

 

ting marked “Cold Water Inlet”. Connect the hot water

 

water flow. Use full flow ball or gate valves only.

 

supply (1 1/2 in. NPT) to the fitting marked “Hot Water

 

DO NOT use 50/50 tin-lead solder (or any lead based sol-

 

Outlet”.

 

der) in potable water lines. Use 95/5 tin-antimony or other

2.

The installation of unions in both the hot and cold water

 

equivalent material.

 

supply lines is recommended for ease of removing the

 

DO NOT tamper with the temperature and pressure relief

 

water heater for service or replacement.

 

valve. Tampering voids all warranties. Only qualified service

3. The manufacturer of this water heater recommends

 

technicians should service these components.

 

installing a tempering valve in the domestic hot water

 

DO NOT use with piping that has been treated with chro-

 

line as shown in Figure 4. These valves reduce the point-

 

mates, boiler seal, or other chemicals.

 

of-use temperature of the water by mixing cold and hot

 

DO NOT add any chemicals to the system piping that will

 

water and are readily available for use. Contact a

 

contaminate the potable water supply.

 

licensed plumber or the local plumbing supplier.

 

DO NOT apply electrical power before the tank is filled with

4.

If installing the water heater in a closed water system,

 

water and you have confirmed that there are no leaks in the

 

install an expansion tank in the cold water line as speci-

 

piping and connections.

 

fied under “Closed System/Thermal Expansion”.

 

 

 

 

 

 

 

 

 

 

 

 

 

5. Install a shut-off valve in the cold water inlet line. It

 

 

 

 

WARNING

 

 

 

 

 

 

 

should be located close to the water heater and be eas-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO REDUCE RISK OF ELECTRIC SHOCK OR POSSI-

 

ily accessible. Show the user the location of this valve

 

 

 

BLE ELECTROCUTION THE WATER HEATER MUST

 

and how use it to shut off the water to the heater.

 

 

 

BE ELECTRICALLY GROUNDED. The electrical supply

6. A temperature and pressure relief valve is installed in the

 

 

to the water heater should be a separately grounded

 

opening marked ”Temperature and Pressure (T&P)

 

 

 

branch circuit having overcurrent protection and a discon-

 

Relief Valve” on the water heater. Add a discharge line to

 

 

 

nect switch. Refer to the rating plate attached to the

 

the opening of the T&P relief valve. Follow the instruc-

 

 

 

heater to determine the correct ratings for voltage and

 

tions under “Temperature and Pressure (T&P) Relief

 

 

 

amperage. To ensure proper operation, the supply voltage

 

Valve”.

 

 

 

should be within +5% and -10% of the rated voltage of the

7. After piping has been properly connected to the water

 

 

heater. The water heater should be grounded in accor-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

dance with national and local codes.

 

 

 

 

 

 

 

 

Tempering valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WARNING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WATER HEATER EQUIPPED FOR LIMITED VOLTAGE

 

 

 

 

 

 

 

RANGE. This water heater is designed to operate within a

 

 

 

 

 

 

 

specific voltage range. Check rating plate mounted on the

 

 

 

 

 

 

 

heater for the correct voltage. DO NOT connect this water

 

Water meter or

 

 

 

heater to any voltage supply other than that indicated on

 

anti-siphoning

 

 

 

the rating plate. Failure to use the correct voltage may

 

device

 

 

 

 

 

 

 

 

result in unsafe operation and personal injury or property

 

 

 

 

 

 

 

 

 

 

 

 

 

 

damage. If you have any questions or doubts consult your

 

 

 

 

 

 

 

electric company.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrical Connections

 

 

 

 

 

 

 

CAUTION! TO PREVENT DAMAGE TO THE TANK AND

 

 

 

 

 

 

 

HEATING ELEMENT(S), THE TANK MUST BE FILLED

 

 

 

 

 

 

 

WITH WATER BEFORE TURNING "ON" POWER. SEE

 

 

 

 

 

 

 

"FILLING THE WATER HEATER".

 

 

 

 

 

 

 

The information in Table 3 may be used as a guide to deter-

 

 

 

 

 

 

 

mine the wire size of the branch circuit. It is recommended

 

 

 

 

 

 

 

the branch circuit wiring be 125% of the amperage rating of

FIGURE 4: Piping Installation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7 -

 

 

 

 

 

-

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Commercial Electric Water Heater Important Consumer Notice Installation Code RequirementsII Component Identification Recovery Rates III Recovery RatesState of California Temperature and Pressure T&P Relief ValveLocation Requirements Closed System/Thermal Expansion Piping InstallationElectrical Connections Piping InstallationTo Three Phase Installation Check ListPhase Conversion USA only To Single PhaseWater Heater Sounds Temperature ControlElectrical Wiring RequirementsLoad Currents Control Circuit Canada Element, 1 Phase Power Circuit Canada RED Input Terminal Block Element Control Circuit USA only INPUTL1 Terminal Block Phase Black Fuse Holder With Fuses 3A Fuse Primary Secondary Transformer PT75MLI USA only Filling the Water Heater High Temperature Limiting DeviceStartup Hot Water Odour Cathodic ProtectionLime Scale Anode MaintenanceTroubleshooting Checklist Discoloured WaterWater leakage is suspected or apparent Water heater is noisyViii Leakage Checkpoints Installation Procedure IX Floor Sealing Installation InstructionsGeneral ~ Certificate of Warranty ~

73992 specifications

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