172-65702M-04 (SQ-C01) 10 Dec 2020
5
CAUTION
When all the piping work is completed based on the system
flow diagram, inspect once again that all the piping
connections and internal G threaded connectors are properly
tightened, gaskets have been installed and that no parts or
connections are loose.
Failure to do so may result in burns or other injury from discharge
of fluids.
Take measures to prevent people from coming into direct
contact with outlets of the unit.
Failure to do so may result in burns or other injury from the
discharge of fluids.
Do not use excessive force when connecting threaded pipes
to the unit.
Over-tightening may cause breakage leading to fluid discharge,
which may cause burns or other injury.
Use only under conditions in which no freeze-up will occur.
Freezing may damage the unit, leading to fluid discharge, which
may different cause burns or other injury.
In case of an abnormality, install a safety fence or restrict
access to the room with a sign stating "Authorized personnel
only." etc. to prevent personnel unauthorized for the unit
(including those who have not received the relevant safety
education) touching the components. When doing so, stop
the supply of steam, electrical power, water and air.
Failure to prevent the access of unauthorized personnel may
result in burns, electric shock, injury, or falls.
Precautions for Operation
CAUTION
Hot water may flow out when water is initially supplied after
restarting operation. In addition, pay extra attention when
changing the set temperature or when the flow rate of hot
water changes significantly and check the temperature before
use.
To prevent burns, do not touch hot water for at least five seconds
after restarting operation. Residual hot water in the piping may flow
out when supplying hot water.
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.
Do not rapidly reduce the valve opening on the hot water
outlet.
Failure to observe this precaution is dangerous, as there is a
possibility that water at a temperature higher than the set
temperature may temporarily flow.
Do not change the temperature settings without informing the
water user when washing hands, using a shower or cleaning.
Failure to do so may result in burns to the water user.
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