172-65627M-09 (SQ10) 18 Oct 2021
6
Precautions for Operation
When initially starting up the unit, make sure to check the
display the measured temperature to prevent burns and do
not touch the water until the temperature becomes stable.
Be careful especially when using the water is used at high
temperature.
Failure to observe these precautions is dangerous, as there is a
possibility that residual water in the pipe line, which is hotter than
the set temperature, may flow.
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 intentionally allow the control panel to become wet.
Operation of the unit while the control panel is wet may result in
electric shock and/or malfunction of the unit.
The tank must be full of water before operating the heat
exchanger. In particular, if water has been discharged from
inside the heat exchanger for freeze prevention etc., make sure
to restart the unit after supplying water to the heat exchanger.
(When the cooling circulation unit (optional) is installed.)
Operating the heat exchanger empty of water for a long period of
time is dangerous, and may result in the pump running dry and
becoming damaged.
.
Do not rapidly reduce the valve opening on the hot water line.
If it is reduced rapidly, do not touch the water for 30 seconds.
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 contacting the
water user when washing hands, using a shower or cleaning.
Failure to do so may result in burns to the water user.
Each component of the unit such as the steam piping,
motorized valve, control valve, etc. may become hot.
Do not
touch components with bare hands.
Failure to observe these precautions may result in burns.
In the event of an earthquake, close the main steam supply
valve and shut down the unit promptly, then turn off the
breaker.
If the tube inside the heat exchanger of this unit is damaged due
to an earthquake, a large amount of steam will enter the hot
water piping, which may result in burns.
Valve and unit operation must be carried out by personnel
who have attended operation training ensuring the use of
heat-resistant gloves, helmet, protective glasses, etc. to
prevent burns.
Failure to do so may result in burns, as the piping and cover of
the unit become hot during operation.
Continued on the next page
CAUTION
