16(29)
16
25 (46)
35 (78)
60
50
380V 3N~
50Hz
80
70
a
MDV-D252( 8)W/S-830,MDV-D280(10)W/S-830,
MDV-D335(12)W/S-830, MDV-D400(14)W/S-830,
MDV-D450(16)W/S-830
b
MDV-D252W/CS
MDV-D280W/CS
MDV-D335W/CS
MDV-D400W/CS
MDV-D450W/CS
b
a
OUTDOOR UNIT INSTALLATION
In snowy areas, facilities should be installed to
prevent snow. (See the chart below)(defective
facilities may cause malfunction.) Please lift the
bracket higher and install snow shed at the air
inlet and air outlet.
Snow shed for air inlet
Snow shed for air outlet
Snow shed for air inlet
ELECTRIC WIRING
CAUTION
Please select power supply for indoor unit and
outdoor unit separately.
The power supply should have specified branch
circuit with leakage protector and manual switch.
Please put the connective wiring system between
indoor unit and outdoor unit with refrigerant piping
system together.
Please comply with relevant National Electric Standard.
Power wiring should be done by professional electrician.
The power supply, leakage protector and manual of all
the indoor units connecting to the same outdoor unit
should be universal. (Please set all the indoor unit power
supply of one system into the same circuit.)
It is suggested to use 2-core shielded wire as signal
wire between indoor and outdoor units, multi-core wire
is unavailable.
POWER WIRING
Separate Power Supply (without power facility)
(See table below)
<Outdoor unit>
Model
Item
Power
supply
Min. Power wire diameter
mm
Wiring of mental and synthetic resin
2
Manual switch
(A)
Leakage
protector
Grounding
wire
Capacity Fuse
100mA
0.1sec or
less
Size Size
380V 3N~
50Hz
16(29)
25 (46)
35 (78)
16
Note: Select power cord these five models separately
according to relevant standard.
Note: The wiring diameter and the length in the table indicate
the condition that the voltage dropping range is within
2%. If the length exceeds the above figure, please select
the wire diameter according to relevant standard.
380V 3N~
50Hz
Outdoor unit
power supply
Leakage
protector
Manual
switch
Leakage
protector
Manual
switch
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
GND
GND
GND
GND
GND
GND
Branch box
GND
GND
GND
GND
GND
GND
With power facilities
Power facilities
(with leakage protector)
Branch box
Leakage
protector
Manual
switch
Outdoor unit
Outdoor unit
Select the wire diameter
Power wiring refer to the main wire (a) connecting to
branch box and the wiring (b) between branch box and
power facilities. Please select the wire diameter according
to the following requirement.
(1) Diameter of main wire (a)
Depends on the total horsepower of outdoor unit and
following table.
E.g In system:(5Hp
1unit+8Hp
1unit+10Hp
1unit)
Total Hp=23Hp (Table ) size of wire=70mm (within
50m)
(2) Wiring(b) between branch box and power equipment
Depends on the number of combined outdoor unit. If fewer
than 5, the diameter is the same as that of main wire (a);
if more than6, there will be 2 electric control boxes, and the
diameter of wiring depends on the total horsepower of
outdoor connecting
to
and
following table.
units
each electric control box
2
Select wire diameter (
) (table) (unit :mm)
2
Содержание MDV-D Series
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