For this product, AC220V power source is necessary
Electric wiring Caution for electric wiring work, inquire a professional electrical company
must be grounded
ㆍGrounding
ㆍIt should be install grounding work to prevent from an electric shock
and short circuit by leakage an electric current boiler
ㆍConnecting grounding wire with metal piece and bury it in
humid underground. (30cm)
Connection ground with metal water pipe is also fine.
Ground wire diameter should be more than 1.15㎟. Ground
ㆍIf you use power outlet where ground terminal is built-in, terminal
additional grounding is unnecessary.(see figure right)
ㆍIn 110V area, if you want to increase voltage to 220V,
grounding must be done. In this case, allowed transmitter
capacity is 1kW/h more. Gas pipe Telephone
Line
1.The material of gas joint between gas heater and gas piping should use for the approval of good
qualifications. (standard certified )
2.Connect with pipe diameter of 15A(PT1/2 ) to RW-14, RW-18 Model.
Connect with pipe diameter of 20A(PT1/2 ) to RW-24 Models.
3.Finishing the connection, Must be check the gas leaking test.
4.The supply intermediate gas valve Installed the near the product with easy to open and close.
5.Before the connecting the joint, Teflon coating must be wrapped a screw thread.
For gas pipe work, contact a gas pipe work provider.
Warning
Never ground to gas pipe, telephone line or
lightning arrester. Otherwise, there may be
Warning danger of gas explosion or fire by lightning.
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