Toshiba RAV-GM1101ATJP-E, Руководство по установке

Страница: 10 / 648

– 9 –
Bender Bending pipes
Conventional tools (R410A)
Refrigerant recovery equipment Refrigerant recovery
Conventional tools (R32 or R410A)
Torque wrench Tightening flare nuts
Conventional tools (R410A)
Pipe cutter Cutting pipes
Conventional tools (R410A)
Refrigerant cylinder Charging refrigerant
Prepared newly (Use for R32 only)
Welding machine and nitrogen
cylinder
Welding pipes
Conventional tools (R410A)
Electronic refrigerant charging
scale
Charging refrigerant
Conventional tools (R32 or R410A)
■
Refrigerant Piping
R32 refrigerant
CAUTION
•
Incomplete fl aring may cause refrigerant gas leakage.
•
Do not re-use fl ares. Use new fl ares to prevent refrigerant gas leakage.
• Use fl are nuts that are included with the unit. Using different fl are nuts may cause refrigerant gas leakage.
Use the following item for the refrigerant piping.
Material : Seamless phosphorous deoxidized copper pipe.
ø6.35, ø9.52, ø12.7 Wall thickness 0.8 mm or more
ø15.88 Wall thickness 1.0 mm or more
REQUIREMENT
When the refrigerant pipe is long, provide support brackets at intervals of 2.5 to 3 m to clamp the refrigerant pipe.
Otherwise, abnormal sound may be generated.
4
Installation conditions
Before installation
Be sure to prepare to the following items before
installation.
Length of refrigerant pipe
* Caution during addition of refrigerant.
Charge the refrigerant accurately. Overcharging
may cause serious trouble with the compressor.
‡ Do not connect a refrigerant pipe that is shorter than
5 m .
This may cause a malfunction of the compressor or
other devices.
Airtight test
1. Before starting an airtight test, further tighten the
spindle valves on the gas and liquid sides.
2. Pressurize the pipe with nitrogen gas charged from
the service port to the design pressure (4.15 MPa) to
conduct an airtight test.
3. After the airtight test is completed, evacuate the
nitrogen gas.
Air purge
‡ To purge air, use a vacuum pump.
‡ Do not use refrigerant charged in the outdoor unit to
purge air. (The air purge refrigerant is not contained
in the outdoor unit.)
Electrical wiring
‡ Be sure to fix the power wires and system
interconnection wires with clamps so that they do not
come into contact with the cabinet, etc.
Earthing
WARNING
Make sure that proper earthing is provided.
Improper earthing may cause an electric shock. For
details on how to check earthing, contact the dealer who
installed the air conditioner or a professional installation
company.
‡ Proper earthing can prevent charging of electricity on
the outdoor unit surface due to the presence of a
high frequency in the frequency converter (inverter)
of the outdoor unit, as well as prevent electric shock.
If the outdoor unit is not properly earthed, you may
be exposed to an electric shock.
‡ Be sure to connect the earth wire. (grounding
work)
Incomplete grounding can cause an electric shock.
Do not connect ground wires to gas pipes, water
pipes, lightning rods or ground wires for telephone
wires.
Test run
Turn on the leakage breaker at least 12 hours before
starting a test run to protect the compressor during
startup.
CAUTION
Incorrect installation work may result in a malfunction or
complaints from customers.
Item Model
GM1101
GM1401
5 to 50 m
Addition of refrigerant
at the local site in
unnecessary for
refrigerant pipe lengths
up to 30 m. If the
reftigerant pipe length
exceeds 30 m. Add
refrigerant in the amount
given in “Charging
additional refrigerant”.
Length of refrigerant
pipe connected to
indoor / outdoor unit
17-EN 18-EN