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Liquid pipe
No.
Pipe size
(Φ3/8inch)
Length
(32-3/4feet)
No.
Pipe size
(Φ3/8inch)
Length
1)
Amount of additional refrigerant depending on the pipe size(X)
Total length of each liquid pipe:
Φ9.52：A+B+C+a=10+5+4+3=22m(72-3/16 feet)
Φ6.35：D+b+c+d=5+3+3+2+1=11m(36-1/16 feet)
2)
Amount of additional refrigerant depending on Quantity of IDU(Y)
Quantity of indoor unit: 4 sets
3)
Amount of additional refrigerant depending on certain model of IDU(Z)
IDU includes GMV-ND15PH/B-T(U)、GMV-ND15T/A-T(U)
Therefore, the total charging amount ＝ (22 × 0.054)+(11 × 0.022)+(4-2) × 0.3+0.3+0.3 ＝
2.63kg(79-13/16 oz)
4.6 Electric Wiring
(1)
All electrical installation must be performed by qualified technicians in accordance with local laws, regulations
and this user manual.
(2)
Use air conditioner specialized power supply and make sure that it is consistent with system's rated voltage.
(3)
Do not pull the power cord with force.
(4)
Caliber of the power cord must be large enough. A damaged power cord or connection wire must be replaced by
specialized electrical cords.
(5)
Connect the unit to specialized grounding device and make sure it is securely grounded. It's a must to install air
switch and current circuit breaker that can cut off the power of the entire system. The air switch should include
magnetic trip function and thermal trip function so that system can be protected from short circuit and overload.
(6)
Air conditioner belongs to class I electrical appliance, so it must be securely grounded.
(7)
The yellow-green wire inside the unit is a ground wire. Do not cut it off or secure it with tapping screws, otherwise
it will lead to electric shock.
(8)
Power supply must include secure grounding terminal. Do not connect the ground wire to the following:
①Water pipe; ②Gas pipe; ③Drain pipe; ④Other places that are deemed as not secure by professional
technicians.
4.6.1 Electrical Wiring
For solid core wiring (Fig. 4.6.1.1)
(1)
1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation about
25mm (15/16inch).
2) Using a screwdriver, remove the terminal screw(s) on the terminal board.
3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw.
4) Shape the loop wire properly, place it on the terminal board and tighten securely with
the terminal screw using a screwdriver.
A
Φ9.52mm
10m
a
Φ9.52mm
3m
(9-3/4feet)
B
Φ9.52mm
(Φ3/8inch)
5m
(16-3/8feet)
b
Φ6.35mm
(Φ1/4inch)
3m
(9-3/4feet)
15
Photovoltaic Multi VRF
C
Φ9.52mm
(Φ3/8inch)
4m
(13-1/8feet)
c
Φ6.35mm
(Φ1/4inch)
2m
(6-5/8feet)
D
Φ6.35mm
(Φ1/4inch)
5m
(16-3/8feet)
d
Φ6.35mm
(Φ1/4inch)
1m
(3-1/4feet)
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