INVENTOR V5MFI-66, Руководство пользователя и инструкция по установке

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 Page 32 
Step 4: Connect pipes
Connect the copper pipes to the indoor unit first,
then connect it to the outdoor unit. You should
first connect the low-pressure pipe, then the
high-pressure pipe.
1. When connecting the flare nuts, apply a
thin coat of refrigeration oil to the flared
ends of the pipes.
2. Align the center of the two pipes that you
will connect.
Indoor unit tubing Flare nut
Pipe
3. Tighten the flare nut as tightly as possible
by hand.
4. Using a spanner, grip the nut on the unit
tubing.
5. While firmly gripping the nut, use a torque
wrench to tighten the flare nut according
to the torque values in table .
NOTE: Use both a spanner and a torque
wrench when connecting or disconnecting
pipes to/from the unit.
6. After connecting the copper pipes to the
indoor unit, wrap the power cable, signal
cable and the piping together with
binding tape.
NOTE: DO NOT
intertwine signal cable
with other wires. While bundling these items
together, do not intertwine or cross the
signal cable with any other wiring.
Check to make sure there is no refrigerant
leak after completing the installation work.
If there is a refrigerant leak, ventilate the area
immediately and evacuate the system (refer
to the Air Evacuation section of this manual).
8. Insulate all the piping, including the valves
of the outdoor unit.
9. Open the stop valves of the outdoor unit
to start the flow of the refrigerant between
the indoor and outdoor unit.
7. Thread this pipeline through the wall and
connect it to the outdoor unit.
NOTES ON MINIMUM BEND RADIUS
Carefully bend the tubing in the middle
according to the diagram below.
DO NOT
bend the tubing more than 90° or more than
3 times.
Bend the pipe with thumb
min-radius 10cm (3.9”)
•
Ensure to wrap insulation around the piping.
Direct contact with the bare piping may
result in burns or frostbite.
•
Make sure the pipe is properly connected.
Over tightening may damage the bell mouth
and under tightening may lead to leakage.
CAUTION
CAUTION
 Page 33 
13. Make sure that you do not cross your
electrical wiring with your signal wiring.
This may cause distortion and interference.
14. The unit must be connected to the main
outlet. Normally, the power supply must
have a impedance of 32 ohms.
15. No other equipment should be connected
to the same power circuit.
16. Connect the outdoor wires before
connecting the indoor wires.
To avoid getting an electric shock, never
touch the electrical components soon
after the power supply has been turned
off.
After turning off the power, always wait
10 minutes or more before you touch the
electrical components. 11.
12.
Wiring
BEFORE PERFORMING ANY
ELECTRICAL WORK, READ THESE
REGULATIONS
1. All wiring must comply with local and
national electrical codes, regulations and
must be installed by a licensed electrician.
2. All electrical connections must be made
according to the Electrical Connection
Diagram located on the panels of the indoor
and outdoor units.
3. If there is a serious safety issue with the
power supply, stop work immediately.
Explain your reasoning to the client, and
refuse to install the unit until the safety
issue is properly resolved.
4. Power voltage should be within 90-110%
of rated voltage. Insufficient power supply
can cause malfunction, electrical shock, or
fire.
5. If connecting power to fixed wiring, install
a surge protector and main power switch
with a capacity of 1.5 times the maximum
current of the unit.
6. If connecting power to fixed wiring, a
switch or circuit breaker that disconnects
all poles and has a contact separation of
at least 1/8in (3mm) must be incorporated
in the fixed wiring. The qualified technician
must use an approved circuit breaker or
switch.
7. Only connect the unit to an individual
branch circuit outlet. Do not connect
another appliance to that outlet.
8. Make sure to properly ground the air
conditioner.
9. Every wire must be firmly connected.
Loose wiring can cause the terminal to
overheat, resulting in product malfunction
and possible fire. Do not let wires touch or
rest against refrigerant tubing, the
compressor, or any moving parts within
the unit.
10. If the unit has an auxiliary electric heater,
it must be installed at least 1 meter (40in)
away from any combustible materials.
BEFORE PERFORMING ANY
ELECTRICAL OR WIRING WORK,
TURN OFF THE MAIN POWER TO
THE SYSTEM.
WARNING