172-65605M-14 (SQ2/SQ4/SQ6) 10 Dec 2019
47
Precautions for Piping Installation
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.
WARNING
CAUTION
