Safety Precautions; Before Starting The Test Run - Mitsubishi Electric PUMY-P48NKMU1-BS Manual De Instalación

1. Safety precautions

1.3. Before electric work
Caution:
connections are loosened, the cables can snap or break and overheating or

1.4. Before starting the test run

Caution:
Starting operation just after turning on the power switch can severely damage
the internal parts. Keep the main power switch turned on during the operation
season.
parts are correctly installed. Rotating, hot, or high voltage parts can cause
injuries.
Caution
to connect the refrigerant pipes. Make sure the insides of the pipes are clean
and do not contain any harmful contaminants such as sulfuric compounds,
- eplace the existing are nuts and are the ared sections again.
- Do not use thin pipes. (Refer to page 6)
packaging.) If dust, debris, or moisture enters the refrigerant lines, oil dete-
rioration or compressor breakdown may result.
oil, oil deterioration may result.
used, the chlorine will cause the oil to deteriorate.
1.6. Precautions for salt damage–resistant model
("-BS" model)
Although this product (only "-BS" model) has been designed to be resistant to salt
damage, observe the following precautions to maintain the performance of the unit.
1. Avoid installing the unit in a location where it will be exposed directly to seawater
or sea breeze.
2. If the cover panel may become covered with salt, be sure to install the unit in a
location where the salt will be washed away by rainwater. (If a sunshade is installed,
it may be dif cult for rainwater to clean the panel.)
3. To ensure that water does not collect in the base of the outdoor unit, make sure
that the base is level, not at angle. Water collecting in the base of the outdoor unit
could cause rust.
pipes, lightning rods, or telephone grounding lines. If the unit is not prop-
erly grounded, electric shock may result.
may result.
refrigerant. If you touch the pipes, burns or frostbite may result.
the main power switch. Otherwise, water leakage or breakdown may result.
nearest dealer for any questions.
Tools (for R410A)
Gauge manifold
Charge hose
Gas leak detector
Torque wrench Electronic refrigerant charging scale
ant lines, refrigeration oil deterioration may result.
4. If the unit is installed in a coastal area, clean the unit with water regularly to remove
any salt build-up.
5. If the unit is damaged during installation or maintenance, be sure to repair it.
6. Be sure to check the condition of the unit regularly.
7. Be sure to install the unit in a location with good drainage.
Flare tool
Size adjustment gauge
Vacuum pump adapter
3
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