DC Inverter Duct Type Unit
6
3.3 Connection Pipe Requirement
CAUTION!
The maximum length of the connection pipe is listed in the Table below. Do not place the units
between which the distance exceeds the maximum length of the connection pipe.
Table 3.3
Item
Model
Size of Fitting
Pipe(Inch)
Max.
Pipe
Length
(m)
Max. Height
Difference between
Indoor Unit and
Outdoor Unit (m)
Drainage
pipe(Outer
Diameter × wall
thickness)(mm)
Liquid
Gas
VFU-18A309I
VFU-18A309O
1/4
1/2
20
15
Φ30X1.5
VFU-24A309I
VFU- 24A309O
3/8
5/8
30
15
Φ20X1.2
VFU-36A309I
VFU- 36A309O
3/8
5/8
30
15
Φ20X1.2
VFU-48A309I
VFU-48A309O
3/8
5/8
50
30
Φ20X1.2
VFU-60A309I
VFU- 60A309O
3/8
3/4
50
30
Φ20X1.2
Notes:
①
. The connection pipe should be insulated with proper water-proof insulating material.
②
. The pipe wall thickness shall be 0.5-1.0 mm and the pipe wall shall be able to withstand
the pressure of 6.0MPa. The longer the connecting pipe, the lower the cooling and
heating effect performs.
3.4 Electrical Requirement
Electric Wire Size and Fuse Capacity.
Table 3.4
Indoor Units
Power Supply
Fuse Capacity
Breaker
Capacity
Min. Power Supply
Cord
V/Ph/Hz
A
A
mm
2
18K~60K
220-240V~ 60Hz
5
6
1.0
Table 3.5
Model
Power
Supply
Capability of Air
Switch(A)
Minimum Sectional Area
Of Earth Wire (mm
2
)
VFU-18A309O
220-240V
～
60Hz
16
1.5
VFU-24A309O
20
2.5
VFU-36A309O
25
2.5
VFU-48A309O
40
6.0
VFU-60A309O
40
6.0
