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AHU-KIT
3.4 Wiring Requirements
Power Cord Size and Air Switch Capacity:
Model
GMV-N12U/C-T(U)
GMV-N24U/C-T(U)
GMV-N48U/C-T(U)
GMV-N96U/C-T(U)
GMV-N192U/C-T(U)
Use copper wire only as unit's power cord. Operating temperature should be within its rated value.
① Above selection requirements: Power cord size is based on BV single-core wire (2~4pc) at 40°C(104°F)
ambient temperature when laying across plastic pipe. Air switch is D type and used at 40°C(104°F). If actual
installation condition varies, please lower the capacity appropriately according to the specifications of power
cord and air switch provided by manufacturer.
② Install cut-off device near the unit. The minimum distance between each stage of cut-off device should be 3
mm(1/8 inch) (The same for both indoor unit and outdoor unit).
3.5 Piping Requirements
3.5.1 Selection of Piping Requirements
(1) Ensure the inside of the pipes is clean and no foreign materials.
(2) Pipe specifications:
Pipe Diameter mm(inch)
Φ6.35(1/4)
Φ9.52(3/8)
Φ12.70(1/2)
Φ15.9(5/8)
Φ19.05(3/4)
Φ22.2(7/8)
Φ28.6(1-1/8)
Φ34.90(1-3/8)
Φ41.30(1-5/8)
Power Supply
Capacity(A)
208/230V ~60Hz
NOTICE
R410A System
Wall Thickness mm(inch)
≥0.8(1/32)
≥0.8(1/32)
≥0.8(1/32)
≥1.0(3/76)
≥1.0(3/76)
≥1.2(1/21)
≥1.2(1/21)
≥1.3(2/39)
≥1.5(1/17)
Fuse
Minimum Circuit
Capacity(A)
15
10
15
10
15
10
15
10
15
10
Temper grade of piping material
14
Maximum Overcurrent
Protection(A)
15
15
15
15
15
O
O
O
O
1/2H
1/2H
1/2H
1/2H
1/2H
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