3
Requirements for Use
Requirements for hot/cold water supply
Floor
Make sure that the floor is level.
Make sure that the installation area is flat and free of irregularities.
Use floor panels with high water resistance.
Raising pipes
In the case where the floor is finished with tiles etc., screwing bolts into the floor
surface when installing the shampoo unit may cause a crack on the floor surface.
Change the material of the floor of the installation area to plywood, mortar, etc.,
referring to the product layout drawing and the pattern paper.
* The floor panel must have the strength as shown below.
Waterproofing
• In case of the installation on the second floor or higher, waterproof the floor
appropriately.
• Drinking water (Non-drinkable well water, or water including sand or rust are not
approved for use.)
• If the water hardness is 80 ppm or more, treat the water with a water softener in
order to prevent scale clogging of the equipment.
• Set the pressure within the range from 0.08 MPa to 0.6 MPa (0.8 to 6 kgf/cm
2
).
• When the pressure exceeds 0.2 MPa (2 kgf/cm
2
), select the floor unit "with
pressure reducing valve" type.
• The cold water supply pressure must be equal to or higher than the hot water
supply pressure.
• The difference between the cold water supply pressure and the hot water
supply pressure must be 0.2 MPa (2 kgf/cm
2
) or less.
• The temperature of hot water supply must be at least 10˚C higher than that of
hot water from the shower.
Water for use
Pressure of hot/
cold water supply
Temperature of
hot water supply
Cold/Hot water
supply
Drain
Wooden floor
Mortar floor
strength of plywood of 30 mm thickness or more
strength of mortar of 50 mm thickness or more
Rc1/2" Floor raising pipe
Raising height: Hot water supply 80 mm, Cold water supply 110 mm
VU40 Floor raising pipe Raising height: 90 mm
Special floor
(stone etc.)
a base with the strength equivalent to the above must be installed at the
installation position.
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