9
TEMPERATURE &
PRESSURE RELIEF VALVE
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testing laboratory that maintains periodic inspection of production of listed equipment or materials, as meeting the
requirements for Relief Valves and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, Z2I.22 is furnished
with this water heater.
Do not thread, cap, or plug the end of this discharge line. Do not connect discharge line directly to drain. (Figure 4)
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The function of the temperature and pressure relief valve is to discharge water in large quantities should circumstances
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may cause property damage.
THE DISCHARGE LINE
(I) Must not be smaller than the pipe size of the relief valve.
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(3) Must be of material capable of withstanding 210°F
without distortion.
(4) Must be installed so as to allow complete drainage of
both the temperature and pressure relief valve and
discharge line.
(5) Must terminate at an adequate drain.
(6) Must not have any valve between the relief valve and the
heater.
Manually operate the temperature and pressure relief valve at least once a year
(Figure I I)
.To prevent water damage, discharge line must teminate
at an adequate drain.
(Figure 4).
Standing clear of the outlet
(discharge water may be hot),
lift and release the handle on the temperature and pressure relief valve to make the valve
operate freely. If the heater is installed in a closed system, the temperature and pressure relief valve may drip at times. If the temperature and
pressure relief valve discharges a full stream of water, have the system checked. See “Pressure Build-Up in Water System”.
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system
(see “Pressure Build-Up in Water System”)
. Contact the water supplier or local plumbing inspector on how to correct this situation. Do not
plug the temperature and pressure relief valve.
T&P Relief VValve and Pipe Insulation. (Only Models with insulation material included in the package).
1. Locate the T&P Relief Valve on the Water Heater.
2.Locate the slit running the length of the insulation.
3.Spread this slit open and slip it over the T&P Relief Valve (See Figure 11). Apply gentle pressure to the insulation to ensure it is fully seated on
the T&P Relief Valve. Once sealed secure the insulation with a section of tape. IMPORTANT: The insulation or tape should not block or cover the
T&P Relief Valve drain opening. Also the insulation or tape should not block or cover the T&P Relief Valve drain opening. Also the insulation or
tape should not block or hinder access to the T&P Relief Valve manual relief lever.
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5.Select one of the sections of pipe insulation and locate the slit that runs the length of the insulation.
6.Spread the slit open at the base of the insulation and slip it over the cold water (inlet) pipe. Apply gentle pressure along the length of the
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seated, secure the insulation with a section of tape.
7. Repeat steps 5 through 6 for the hot water (outlet) pipe.
SPACE HEATING / POTABLE WATER SYSTEM
Some water heater models are equipped with inlet/outlet tapping for use with space heating applications. If this water heater is to
be used to supply both space heating and domestic potable
(drinking)
water, the instructions listed below must be followed.
• Be sure to follow the manual(s) shipped with the air handler system.
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¾S[SJ[EXIVXLVSYKLXLIEMVLERHPIVGMVGYMXHYVMRKXLISJJG]GPI
• Weeping
(blow off)
of the temperature and pressure relief valve (T & P) or higher than normal water temperatures are the
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• The domestic hot water line from the water heater should be vertical past any tempering valve or supply line to the air
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T&P RELIEF VALVE INSULATION
T&P Relief Valve Insulation
T&P Relief Valve
T&P Relief Valve
Drain Line
Manual Relief Lever
WARNING: Do not attempt to operate this water heater with
cold water inlet valve closed.
FIGURE 11
Содержание VAPORSHIELD Residential 30
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