172-65605M-14 (SQ2/SQ4/SQ6) 10 Dec 2019
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Precautions for Electrical Wiring
Power should be supplied at the voltage and frequency
applicable for each SQ version. (Standard models: 100 V AC
at 50 Hz or 60 Hz, Oceania models: 240 V AC at 50 Hz).
Use of a power supply outside the above specification range
may cause fires or electric shock.
Make sure the power supply is OFF before carrying out
work on the wiring or inspections involving disassembly.
If such work is carried out with the power on, there is a danger
that unit may malfunction or electric shock may occur, leading to
injury or other accidents.
Make sure that wiring work requiring a special license is
carried out by qualified personnel.
Incorrect wiring work may result in generating heat from the
wiring, with the risk of injuries, burns, fire or damage due to
electrical leaks, etc.
Do not allow any cables or wires to come into contact with
the steam piping.
Steam heat will sever wiring, which may result in injury, burns,
fire, damage, etc. caused by electric shock from the wiring.
Precautions for Commissioning
When starting up the unit, make sure to check the display
for the measured temperature and do not touch the water
until the temperature becomes stable at a temperature
higher than the set temperature may flow.
Failure to observe these precautions is dangerous and may
result in burns.
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.
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.
Operation should be carried out by an experienced person
with such as a steam and water piping technician or an
electrician, ensuring to wear a pair 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.
CAUTION
CAUTION
