Справочник Пользователя для State Industries GS6 40 YBRS Series 201

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valve or have any reducing coupling installed in the 

discharge line.

• 

Must not be capped, blocked, plugged or contain any 

valve between the relief valve and the end of the dis-

charge line.

• 

Must terminate a maximum of six inches above a floor 

drain or external to the building.

• 

Must be capable of withstanding 250°F (121°C) without 

distortion.

• 

Must be installed to allow complete drainage of both 

the valve and discharge line.

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 up under the T&P Relief 

Valve. See Figure 15B. 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 hinder access to the 
T&P Relief Valve manual relief lever.

4.  Next locate the hot water (outlet) & cold water (inlet) pipes 

to the water heater.  

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 insulation to ensure it is fully 
seated around the cold water pipe. Also ensure that the 
base of insulation is flush with the water heater. Once 
seated, secure the insulation with a section of tape.

7.  Repeat steps 5 through 6 for the hot water (outlet) pipe.

Some water heater models are equipped with inlet/outlet 

connections 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.

• Temperature-pressure relief 

valve must comply with ANSI 
Z21.22-CSA 4.4 and ASME 
code.

•  Properly sized temperature-

pressure relief valve must be 
installed in opening provided.

•  Can result in overheating 

and excessive tank pressure.

•  Can cause serious injury or 

death.

For protection against excessive pressures and 

temperatures, a temperature and pressure relief valve must 

be installed in the opening marked “T & P RELIEF VALVE” 

(see Figure 15A). This valve must be design certified by 

a nationally recognized testing laboratory that maintains 

periodic inspection of the production of listed equipment or 

materials as meeting the requirements for Relief Valves for 

Hot Water Supply Systems, ANSI Z21.22. The function of 

the temperature and pressure relief valve is to discharge 

water in large quantities in the event of excessive 

temperature or pressure developing in the water heater. 

The valve’s relief pressure must not exceed the working 
pressure of the water heater as stated on the rating plate.
IMPORTANT: Only a new temperature and pressure relief 

valve should be used with your water heater. Do not use an 

old or existing valve as it may be damaged or not adequate 

for the working pressure of the new water heater. Do not 

place any valve between the relief valve and the tank.

The Temperature & Pressure Relief Valve:
• 

Must not be in contact with any electrical part.

• 

Must be connected to an adequate discharge line.

• 

Must not be rated higher than the working pressure 

shown on the rating plate of the water heater.

 

• 

Must not be smaller than the pipe size of the relief