INVENTOR V7CI-24WiFiR/U7RS-24, Installation Manual

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 Page 22 
Indoor
Indoor
Indoor
Outdoor
Outdoor
Outdoor
Precautions
- For ensuring throttled efficiency, please
mount the throttle as horizontally as possible.
- Wrap the supplied anti-shock rubber at
external of the throttle for denoise.
1 Anti-shock rubber
2 Throttle
NOTE:
Use both a spanner and a torque
wrench when connecting or disconnecting
pipes to/from the unit.
Fig. 6.9
NOTE 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”)
Fig. 6.10
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.
7. Thread this pipeline through the wall and
connect it to the outdoor unit.
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.
CAUTION
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).
Installation Of The Throttle. (Some Models)
1 Throttle
2 Liquid pipe
3 Gas pipe
CAUTION
•
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.
 Page 23 
Wiring
7
Safety Precautions
WARNING
• Be sure to disconnect the power supply
before working on the unit.
• All electrical wiring must be done
according to local and national regulations.
• Electrical wiring must be done by a
qualified technician. Improper connections
may cause electrical malfunction, injury
and fire.
• An independent circuit and single outlet
must be used for this unit.
DO NOT
plug
another appliance or charger into the same
outlet. If the electrical circuit capacity is not
enough or there is a defect in the electrical
work, it can lead to shock, fire, unit and
property damage.
• Connect the power cable to the terminals
and fasten it with a clamp. An insecure
connection may cause fire.
• Make sure that all wiring is done correctly
and the control board cover is properly
installed. Failure to do so can cause
overheating at the connection points, fire,
and electrical shock.
• Ensure that main supply connection is
made through a switch that disconnects
all poles, with contact gap of a least 3mm
(0.118”).
•
DO NOT modify the length of the power
cord or use an extension cord.
CAUTION
• Connect the outdoor wires before
connecting the indoor wires.
• Make sure you ground the unit. The
grounding wire should be away from gas
pipes, water pipes, lightning rods,
telephone or other grounding wires.
Improper grounding may cause electrical
shock.
•
DO NOT
connect the unit with the power
source until all wiring and piping is
completed.
• Make sure that you do not cross your
electrical wiring with your signal wiring, as
this can cause distortion and interference.
Follow these instructions to prevent distortion
when the compressor starts:
• No other equipment should be connected
to the same power circuit.
• The unit’s power information can be found
on the rating sticker on the product.
• The unit must be connected to the main
outlet. Normally, the power supply must
have a low output impedance of 32 ohms.
NOTE: The fuse is made of ceramic.
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioner s circuit board(PCB) is
designed with a fuse to provide overcurrent
protection. The specifications of the fuse are
printed on the circuit board, such as:
Indoor unit: T3.15A/250VAC, T5A/250VAC.
(applicable for unit adopts R32 refrigerant)
Outdoor unit: T20A/250VAC.
,