Sight glass
37
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Inspection
(2) Periodic inspection
(j) When continuously operating the refrigeration
unit with low room temperature
When operating the refrigeration unit continuously for
a long time at 10°C or less, stop the refrigeration unit
once or twice a week to remove the ice in the drain
pan, etc. Completely melt the ice in the drain pan,
and discharge it outside of the van.
(i) When not using the refrigeration unit for a long time
(h) Inspection with sight glass
When not using the refrigeration unit for a long time,
run the unit for approximately 15 minutes every three
to four days.
Carry out periodic inspections of the refrigeration
unit following the Periodic Inspection Check Sheet
given on the following page to ensure that the
refrigeration unit is always used in its best state.
The following types of periodic inspections are
carried out.
1. Inspection at every 500 hours
2. Inspection at every 1000 hours or yearly inspection
3. Inspection at every 2000 hours or yearly inspection
4. Inspection at every 5000 hours or yearly inspection
Run the refrigeration unit, and after ten minutes have
passed, inspect the state of the refrigerant with the
sight glass.
If the check color is yellow, contact your dealer.
Check
color
Once in 3-4 days,
for about 15 minutes
Once or twice
every week
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