Midea MGBT-D25W/DN1, Руководство пользователя

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R410a tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09
142 Installation
4 Wiring Installation
All wiring installation should be done by qualified person.
4.1 Precautions:
1. The air-conditioner should apply special power
supply, whose voltage should conform to rated
voltage.
2. Wiring construction must be conducted by the
professional technicians according to the labeling on
the circuit diagram.
3. Only use the electric components specified by our
company, and require installation and technical
services from the manufacturer or authorized dealer.
If wiring connection fails to conform to electric
installation norm, failure of the controller, electronic
shock, and so on may be caused.
4. The connected fixed wires must be equipped with
full switching-off devices with at least 3mm contact
separation.
5. Set leakage protective devices according to the
requirements of national technical standard about
electric equipment.
6. After completing all wiring construction, conduct
careful check before connecting the power supply.
7. Please carefully read the labels on the electric
cabinet.
8. The user’s attempt to repair the controller is
prohibited, since improper repair may cause electric
shock, damages to the controller, and so on. If the
user has any requirement of repair, please contact
the maintenance center.
4.2 Power supply specification
Items
Model
Outdoor power supply Wiring
Power supply Manual switch Fuse
MGBT-F25W/DN1
MGBT-F30W/DN1
220V 3N
～
60Hz 70A 50A
25mm
2
(<30m)
MGBT-D25W/DN1
MGBT-D30W/DN1
220V 3N
～
60Hz 70A 50A
25mm
2
(<30m)
MGBT-F60W/DN1 220V 3N
～
60Hz 175A 150A
35mm
2
(<20m)
MGBT-F120W/DN1 220V 3N
～
60Hz 350A 300A
According to the actual
distance of wiring,70mm
2
or lager for each unit
MGBT-F180W/DN1
220V 3N
～
60Hz
450A 350A
According to the actual
distance of wiring,150mm
2
or lager for each unit.
4.3 Requirements of wiring connection
No additional control components are required in the
electric cabinet (such as relay, and so on), and the
power supply and control wires not connected with
the electric cabinet are not allowed to go through the
electric
box. Otherwise, electromagnetic
interference may cause failure of the unit and
control components and even damages to them,
which thus lead to protective failure.
All cables led to the electric box should be
supported independently but by the electric box.
The strong current wires generally pass the electric
box, and 220-240V alternating current may also
pass the control board, so wiring connection should
conform to the principle of separation of strong
current and weak current, and the wires of power
supply should be kept more than 100 mm away from
the control wires.
Only use 220V 3N~60Hz rated power supply for the
unit, and the maximum allowable range of voltage is
198V~242V.