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5.1 Warning and Caution for use
Warning
1. Do not use the product over working pressure range or over maximum working temperature.
*Failure to follow this notice damages the product or leads to air exhaust defect.
2. On test operation of water heater, conduct inspection for connection part of float vent, and check that
there is no leakage.
3. If there is a possibility of freezing or the product is not used for an extended period,completely
discharge fluid from the product and pipes, and close the stop valve.
* Failure to follow this notice may cause malfunction of the product due to rusting inside the product
and the pipes or damaged by freezing.
4. A small amount of water may blow out with air at air discharge for initial operation.
* This is not a failure of the product.
5. If the piping is under negative pressure, it draw in outside air.
6. When on operation foreign substance such as dust adheres to valve and valve leakage occurs, clean
the valve (see 6.3 Troubleshooting).
6.1 Warning and Caution for maintenance and inspection
Warning
1. Conduct daily inspection and regular inspection to maintain function and performance of the product.
* If defect is found, ask professionals.
2.
Disassembly and inspection shall be performed by an experienced professional or valve
manufacturer.
3. When the product is not used for an extended period, conduct operational check before operation.
* If defect is found, ask professionals.
Do not touch the product with bare hands in case of high-temperature fluid.
* Failure to follow this notice may result in burns.
Completely discharge internal pressure of the product, piping and equipment. Cool
down the product prior to disassembling or maintenance in case of high-temperature
fluid.
*Failure to follow this notice may result in scalds or bodily injury due to residual
pressure.
5. Operation
Caution
6. Maintenance
Caution
6
■EPDT-273b■
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