Assembly After Maintenance - Mitsubishi Electric LGH-50RVS-E Operating Instructions Manual

2) Lossnay cores
1. Use a vacuum cleaner to suck up the dust and dirt on the
exposed surfaces of the Lossnay cores.
2. Put the Lossnay core in a suitable vessel (e. g. a small tub or the
shower tray) and rinse the Lossnay core with clear water from all
sides.
3. Carefully clean the air inlets and housing thoroughly with a broad
soft brush.
4. Rinse the Lossnay core from all sides thoroughly with clear water.
5. Lift the Lossnay core from the vessel and remove the remaining
water inside the Lossnay core by rotating the Lossnay core
repeatedly.
6. Dry the Lossnay core with a dry cloth and put it back into the
ventilation unit. Operate the unit at least one day for drying inside
the core.
Vacuum cleaner (with
brush attachment)
CAUTION
• Do not use the hard nozzle of the vacuum cleaner. It may
damage the exposed surfaces of the Lossnay cores.
• Do not wash with detergent or disinfect with solution. It may
damage the Lossnay cores.
3) Drain pan
1. Refer to 4.1 Removing the parts, and remove the air filters and
Lossnay cores.
2. Remove dirt on the drain pan, and water and dust adhered
around the drain discharge holes with a soft cloth.
Drain pan
CAUTION
• To prevent the materials from deteriorating, do not use paint
thinner, benzene, toluene and other solvents, detergents, or
nylon scrubbing brushes for cleaning.
• When oil or the like is adhering, wash it off with lots of water.
If the drain pan is particularly dirty, wash it with warm water
(40˚C or less).
• When wiping the drain pan for cleaning, do not apply load to
the parts other than the core rail part. If a load is applied to
the drain pan, it can be damaged, resulting in water leakage.
• After cleaning, do not leave anything including cleaning
clothes or tools on the drain pan.
Core rail part
Check for dirt and dust that likely
causes the drain discharge hole
clogging on both the air supply and
exhaust sides, and then wipe and
clean the drain pan.
4) Backflow stopper
1. Refer to 4.1 Removing the parts, and remove the air filters and
Lossnay cores.
2. After cleaning the drain pan, remove dirt accumulated in the
backflow stoppers with a soft cloth or the like. Besides that,
remove dust if it clogged the backflow stoppers.
Drain pan
3. To remove clogging of the backflow stoppers, insert a cotton
swab or the like into the drain discharge holes. From the side
of the drain catch basin, check that the cotton swab is passing
through the backflow stoppers.
Drain catch basin
Backflow stoppers
From the side of the drain catch basin, check
that the cotton swab is able to pass through both
backflow stoppers. Make sure that a passage is
obtained through the backflow stoppers.
CAUTION
• To prevent the materials from deteriorating, do not use paint
thinner, benzene, toluene and other solvents, detergents, or
nylon scrubbing brushes for cleaning.
• Pay attention not to damage the backflow stoppers and drain
catch basin with the cotton swab. Besides that, if the cotton
swab is short, it can be dropped into the drain discharge
holes, and it can not be taken out from there.
• After cleaning, pour approximately 500 ml of water into both
the drain discharge holes to check that water can be drained
properly. When pouring water, pay attention not to splash
water inside the product, and be sure to wipe off all puddles
after the work.
• After cleaning, do not leave anything including cleaning
clothes or tools on the drain pan.
• If the drain discharge holes are still clogged after the
cleaning, the backflow stoppers must be replaced. If the
product is continuously used, it may cause defective water
drainage, resulting in water leakage. Be sure to contact the
dealer from whom you purchased the product.

4.3 Assembly after maintenance

Bearing in mind the above points, assemble the parts following the
sequence for their removal in reverse.
Eng-6
Drain discharge holes (Backflow stopper positions)
Wipe off dirt and dust on both the air supply and
exhaust sides.
Cotton swab