GSW 72090 manual Gas Supply

The 60 gallon heater is equipped with a Heat Reflector Shield (see Figure 2). This Shield reflects heat from the High-input heaters to prevent damage to combustible floors. The Shield is held in place by three (3) tabs that rest on the inside of the legs of the water heater. Ensure the Shield is positioned horizontally (parallel to the bottom of the heater) and in the designated position of 38mm (1.5 in.) below the flame-arrester.

DRAIN

VALVE

BOTTOM

PAN

LEG

FLAME

HEAT SHIELD ARRESTER

Figure 2 Heat Shield Installation (60 gallon only)

ventilation systems, clothes dryers, fireplaces, etc., can affect the proper operation of the water heater. Special attention must be given to conditions these devices may create. Flow reversal of flue gases may cause an increase of carbon monoxide inside of the dwelling, as shown in Figure 7.

If the water heater is located in an area that is subject to an excessive amount of lint, dirt or oil, it may be necessary to clean the flame arrester periodically (see “Maintenance” section).

Important: It is always recommended that a suitable drain pan be installed under the water heater to protect the area from water damage resulting from normal condensation, a leaking tank or piping connections. Refer to Figure 1. Under no circumstances is the manufacturer to be held responsi- ble for any water damage in connection with this water heater.

Gas Supply

Install the gas piping as shown in Figure 4. Use only new

WARNING

pipe and fittings with clean-cut threads. Sealing compounds

used on the pipe threads shall be approved for use with nat-

Do not install directly on carpet. Instead, place the

ural and propane gas.

water heater on a metal or wood panel extending a

Use gas piping of adequate sizing to ensure gas input. Gas

minimum of 75mm (3 in.) from all sides. In alcoves or

piping material must be approved for use with natural gas

closets, cover the carpet completely. Ensure

this

and propane fuels. All piping must comply with all local

panel is capable of

supporting the weight of

this

codes or, in the absence of such codes, with the latest edi-

heater when filled with water.

tion of “Natural Gas and Propane Installation Code”

FAILURE TO PROPERLY INSTALL THIS HEATER MAY

CAN/CSA-B149.1 in Canada, “National Fuel Gas Code”

RESULT IN A FIRE HAZARD.

ANSI Z223.1 (NFPA 54) in the U.S.A. The final connection

The water heater shall be located in an area not subject to

to the water heater is made using 1/2” NPT.

Before connecting to the gas service, check that a properly

freezing temperatures. Water heaters located in uncondi-

sized gas meter and regulator are available to service the

tioned spaces (e.g., attics, basements, etc.) may require

water heater. If other appliances are using the same meter

insulation of the water and drain piping to protect against

and regulator, ensure that the capacity of the meter and reg-

freezing. Proper ventilation needs to be provided for water

ulator matches that of the combined input of all appliances

heaters installed in unconditioned spaces (e.g., attics, base-

connected to it.

ments, etc.) in order to avoid an event where air tempera-

DO NOT tamper with the gas control/thermostat, igniter,

ture exceeds 42°C (108°F). The drain and controls must be

thermocouple, or temperature and pressure relief valve.

easily accessible for operation and service. Maintain proper

Tampering voids all warranties. Only a qualified service

clearances as specified on the data plate.

technician should service these components.

Ensure that the water heater is level. This heater may be

installed in a closet or alcove and is certified for operation

on a combustible floor.

Do not locate the water heater near an air-moving device.

The operation of air-moving devices such as exhaust fans,

MANUAL

GAS CONTROL/THERMOSTAT

GAS

SHUT-OFF

VENT

BACK 25mm (1 in.)

TOP TO CEILING

200mm (8 in.)

SIDES AND

SIDES

BACK 25mm

25mm

(1 in.)

(1 in.)

AIR INTAKE

GROUND-

JOINT UNION

FRONT 600mm

(24

in.) MIN.

FOR SERVICE

Figure 4 Recommended Gas Piping

Figure 3 Minimum Clearance Locations

7

–

–