172-65605M-14 (SQ2/SQ4/SQ6) 10 Dec 2019
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Maintenance and Inspection
There are two types of inspection to be carried out for maintenance of the unit,
daily inspections and periodic inspections.
・
Daily inspection:
Check visually and by sounds from the unit to judge for
abnormal conditions.
・
Periodic inspection: Skilled maintenance personnel should carry out disassembly
of the necessary components for inspection.
1. Daily inspection
For trouble-free use of the unit, please check and record the following items on
a daily basis.
If inspecting the back of the unit, make sure to wear appropriate safety gear
(helmet, safety shoes, gloves etc.) and be careful of hot piping.
(1) Water/steam leakage
Check for any traces of leakage from valves, flanges or pipe fittings during
operation.
(2) Pressure gauge (No. 19 and 20)
If the facility manager has indicated the acceptable pressure
range on the pressure gauge, check that the pressure is
within the range.
When disassembling or removing the unit and its components, wait
until the internal pressure equals atmospheric pressure and the
surface of the components have cooled to room temperature.
Disassembling or removing components when hot or under pressure
may lead to discharge of fluids, causing burns, other injuries or
damage.
CAUTION
When conducting an inspection during operation of the unit, it should
be carried out visually wearing protective glasses, being careful not
to touch the piping, etc. Failure to do so may result in burns, as the
piping and cover of the unit become hot during operation.
CAUTION
Take measures to prevent people from coming into direct contact
with the condensate outlet of the unit. Failure to do so may result in
burns or other injury from the discharge of fluids.
CAUTION
Be sure to use only the recommended components when repairing
the unit, and NEVER attempt to modify the unit in any way. Failure to
observe these precautions may result in damage to the unit or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
Make sure the power supply switch 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.
CAUTION
Make sure that wiring work requiring a special license is carried out
by qualified personnel. If carried out by unqualified personnel,
overheating or short circuits leading to injury, fires, damage or other
accidents may occur.
CAUTION
