5
Usage conditions
Installation of pipes
The following are important points to adhere to during the installation of pipes.
Read through the details carefully and ensure that the pipes are installed correctly.
When installing this product, ensure that installation of pipes adheres to the instructions outlined in "Precautions during
installation of pipes". Installing pipes without reading through the precautions will mean water may not mix properly, and a set
temperature will not be achieved.
This product is designed for indoor installation. Always install this product indoors.
Precautions during installation of pipes
Do not use pipes made of materials that may introduce rust for the water supply pipe.
In general, the same diameter and same pressure is recommended for hot water pipes and water supply pipes.
Always use a reamer to deburr the ends of cut pipes.
Avoid using inverted U-shaped pipes (siphon) as these can cause air to become trapped.
Always connect hot water pipes and water supply pipes after removing all contaminants such as dirt, sand and oil as these can
cause problems.
After connecting the pipes and testing water flow, clean the filter and shower head.
Do not connect the hot water pipes and water supply pipes in reverse.
Connecting pipes in reverse will mean the temperature of water cannot be controlled properly by the water taps, which can
cause problems including burns.
Ensure that the hot water pipes from water boilers are only run over a short distance so as to minimize resistance.
Longer pipes can cause fluctuations in temperature and poor hot water delivery.
Always wrap pipes with lagging material after installation is complete.
Water boiler pipes
In general, the same diameter and same pressure is recommended for main hot water pipes and main water supply pipes.
Equipment comes with hair catchers installed.
Hot water supply and water supply conditions
Water used
Hot water supply,
water supply pressure
Hot water temperature
into the product
Water boiler
Public water supply (do not use non-drinkable well water or water that contains rust or sand.)
If the water hardness is 80 ppm or higher, install a water softener to prevent the buildup of scale
within the basin body. Aeration may be minimal when using shampoo even if drinkable well
water is used, so a water softener should be installed.
Use a pressure set between 0.1 to 0.4 MPa (1 to 4 kgf/cm
2
). If multiple YUME ESPOIR are used,
ensure that the pressure does not drop below 0.1 MPa (1 kgf/cm
2
).
Set the water supply pressure
≧
hot water supply pressure.
Set the difference between the hot water supply pressure and water supply pressure to within
0.2 MPa (2 kgf/cm
2
).
Set the hot water temperature to 60˚C or less.
Set the temperature 10˚C or higher than the shower temperature used.
Do not use steam with the hot water supply.