172-65627M-09 (SQ10) 18 Oct 2021
53
Piping Work
For applications such as handwashing in which hot water directly touches
hands, when using the one-pass method, make sure to install a
thermostatic mixing value on the outlet.
Failure to observe this precaution may result in burns, as water at a temperature
higher than than the set temperature may flow due to load fluctuations.
To use the unit safely and properly, read this instruction manual carefully
to carry out the specified work. Installation, moving and incidental work of
the unit requires professional qualifications and skills. The work should
be carried out by a qualified personnel. Once installation is complete,
make sure that the work is carried out based on the instruction manual.
Work carried out improperly may lead to accidents or unit malfunction.
Do not use well water or water from a hot spring.
Depending on the water quality, foreign matter may adhere to, or corrosion may
occur in, the unit piping, resulting in water leaks. In this case, there will be a
charge for repair work even during the warranty period.
Do not use excessive force when connecting threaded pipes to the unit.
Over-tighening may cause breakage leading to the unit damage, fluid discharge
during operation, injury, burns, etc.
Make sure that work (such as transportation, installation, welding or
wiring) requiring a special license is carried out by qualified personnel.
Improper work may lead to falls, heat generation, injuries due to electrical
leakage, fire or damage.
After completing work on the piping system, perform a final inspection to
make sure all piping connections are tightened, all gaskets are installed,
and that all installations are stable and secure.
Improper piping work may lead to fluid discharge, resulting in injury, burns,
damage, etc.
The unit consist of steam-using equipment and piping. Proper insulation
should be installed to avoid burns or heat loss. Steam piping is hot, and
even water piping may reach temperatures up to 95
C. Insulate piping, as
touching piping directly may result in burns.
Do not climb on the component of the unit. The unit is not designed to be
climed on by people.
Failure to observe this precaution may may lead to injury, failure or abnormal
operation due to deformation of the unit.
The unit should be operated in accordance with the proper operating
steps, within the specifications of the unit, such as the maximum
operating pressure (PMO) and maximum operating temperature (TMO).
Refrain from sudden operation of any valves.
Failure to observe these precautions is dangerous and may result in damage to
the unit, malfunctions or failure of the unit, or lead to serious accidents.
Once the product has been installed and connected to the system piping,
supply steam to heat the product piping. Only after the surface
temperature of the product piping has returned to room temperature,
retighten all the piping connections.
Piping connections may loosen due to vibration during transportation or
installation, or steam heat. This can lead to fluid discharge, which may cause
burns or other injury.
WARNING
CAUTION
