antioxidant are available on the market. However, the constituents
of these are widely varied, and some are anticipated to corrode
the piping materials, or adversely affect HFC
refrigerant,lubricating oil, etc. Exercise care when using an
oxidation preventive.
10.4.7. Servicing Tips
The drier must also be replaced whenever replacing the refrigerant cycle parts. Replacing the
refrigerant cycle parts first before replacing the drier. The drier is supplied in a vacuum pack.
Perform brazing immediately after opening the vacuumpack, and then start the vacuum within
two hours. In addition, the drier also needs to be replaced when the refrigerant has leaked
completely. (Applicable for drier models only)
11. Installation Instructions
Required tools for Installation Works
1. Philips screw
driver
5. Spanner 9. Gas leak
detector
13.
Multimeter
2. Level gauge 6. Pipe cutter
10.
Measuring tape
14.
Torque wrench
18 N m (1.8 kgf m)
55 N m (5.5 kgf m)
65 N m (6.5 kgf m)
3. Electric drill, hole
core drill (ø70 mm)
7. Reamer
11.
Thermometer
15.
Vacuum pump
4. Hexagonal wrench
(4 mm)
8. Knife
12.
Megameter
16.
Gauge manifold
11.1. Safety Precautions
- Read the following “SAFETY PRECAUTIONS” carefully before
installation.
- Electrical work must be installed by a licensed electrician. Be sure
to use the correct rating of the power plug and main circuit for the
model to be installed.
- The caution items stated here must be followed because these
important contents are related to safety. The meaning of each
indication used is as below. Incorrect installation due to ignoring
of the instruction will cause harmor damage, and the seriousness
is classified by the following indications.
This indication shows the possibility of causing death or serious injury.
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