Operation Instructions 一、Using Method
Temperature and Pressure Relief Valves is suitable for bearing the pressing type solar water heater, gas heater, electric heater , water heater of fuel, water heater of heat pump, sensitive function heater, etc. various kinds of heaters( such as the boiler) and hot water containers .
二、Technical Parameter
·Standard setting: 75,87,100,125,150psi(0.5、0.6、0.7、0.86、1.0MPa)
·Temperature relief: 210℉(99℃)
·Dimensions/Weights
MODEL
Size
in
Import x Export
in
A
in
B
in
D
in
T
in
Weight
Oz（g）
Temp. Steam
Rating BTU/hr
WYA-15
1/2
R1/2xRp1/2
12/3
31/4
11/8
4
8.4(237)
15,000
WYA-20
3/4
R3/4x Rp3/4
12/3
31/4
11/8
4
9.1(258)
100,000
三、Installation
·Temperature and Pressure Relief Valves should be installed on the water heater top or side.The Temperature sensing element must be inmmeresd in the water within the top 6″of the tank.
·The eliminating pipeline should be installed under the relief valve.Its terminal station distance in floor drain should be greater than 6″to make it easily remove and observe water.
四、Safeguard And Maintenance:After installing,water heater users must lift the relief valve handle once at least every year,so as to ensure that unblocked things in the waterway of the relief valve.Before operating handles,please check the elimination pipeline which joining the relief valve,guaranteed that the hot water from the relief valve discharge the proper place,otherwise it may cause the bodily injury.If the handle is lifted,without water flowing out,it proves that the relief valve is invalid.Then it should turn off the water heater immediately and ask pipeline personnel check and repaire.
五、Designed and checked under “ANSI Z21.22”
一、Using Method
