Before Getting Installed - Mitsubishi Electric Fresh Master GUF-50RDH4 Installation Instructions Manual

It is strictly prohibited to use pipes with thin wall not listed in
- Store the piping to be used during installation indoors and
(Store elbows and other joints in a plastic bag.)
of the oil and compressor trouble may result.
- The refrigerator oil will degrade if it is mixed with a large
amount of mineral oil.
- Do not use a refrigerant other than R410A.
erant may cause the refrigerator oil to deteriorate.
and cause the refrigerator oil to deteriorate.
- For the following tools, use only the tools special to the
refrigerant R410A.
erant R410A.
Tool name (For R410A)
Gauge manifold Flare tool
Charging hose
Gas leak detector Vacuum pump adaptor
Balance for refrigerant charging
- Be especially careful when managing the tools.
may deteriorate.
- Do not use a charging cylinder.
- Using a charging cylinder may cause the refrigerant to deterio-
rate.
1.4. Before conducting supply pipe
and drain pipe work
[Supply pipe work is not required for GUF-50, 100RD4]
Caution:
hardness less than 100 mg/ . If the supply water does not
- The supply pressure must be within the range of 2 10
49 10 pa.
4
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range may cause damage to the solenoid valve and result in water
leaks.
- Drain pipe gradient must be more than 1/100.
- Drain water will not be properly discharged.
tion heater and thermal insulation.
- Install the drain piping according to this installation Manual
to ensure proper drainage. Wrap thermal insulation around
- Improper drain piping may cause water leakage and damage to
furniture and other possessions.

1.5. Before getting installed

Caution:
- Do not install the unit where combustible gas may leak.
may result.
- Do not use the Fresh Master where food, pets, plants, preci-
sion instruments, or artwork are kept.
performance of the Fresh Master or damage its parts.
- When installing the unit in a hospital, communication station,
-
-
ment by creating noise that disturbs medical treatment or image
broadcasting.
- Do not install the unit on a structure that may cause leakage.
-
electrical work
Caution:
- Ground the unit.
in electric shock.
- Install the power cable so that tension is not applied to the cable.
- Tension may cause the cable to break and generate heat and
-
- Install an leak circuit isolator, as required.
result.
and rating.
-
- A fuse or circuit isolator of a larger capacity or a steel or copper
- Do not wash the Fresh Master.
- Washing them may cause an electric shock.
- Be careful that the installation base is not damaged by long
use.
pa to
4
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- Only one person should not carry the product if it weighs more
than 20 kg.
- Fresh Master use PP bands for packaging. Do not use any PP
bands for a means of transportation. It is dangerous.
-
positions on the unit base. Also support the outdoor unit at four
points so that it cannot slip sideways.
- Safely dispose of the packing materials.
- Tear apart and throw away plastic packaging bags so that chil-
dren can not play with them. If children play with a plastic bag
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