![background image](http://html1.mh-extra.com/html/midea/mgbt-d25w-dn1/mgbt-d25w-dn1_manual_1791293143.webp)
MCAC-ATSM-2014-09 R410a tropical air-cooled scroll chiller unit 60Hz
Installation 143
All electric wires must conform to local wiring
connection norm. The suitable cables should be
connected to power supply terminal through wiring
connection holes at the bottom of the electric
cabinet. According to Chinese standard, the user is
responsible for providing voltage and current
protection for the input power supply of the unit.
All power supplies connected to the unit must pass
one manual switch, to ensure that the voltages on all
nodes of electric circuit of the unit are released
when the switch is cut off.
The cables of correct specification must be used to
supply power for the unit. The unit should use
independent power supply, and the unit is not
allowed to use the same power supply together with
other electric devices, to avoid over-load danger.
The fuse or manual switch of the power supply
should be compatible with working voltage and
current of the unit. In case of parallel connection of
multiple modules, the requirements of wiring
connection mode and configuration parameters for
the unit are shown in the following figure.
Some connection ports in the electric box are switch
signals, for which the user needs to provide power,
and the rated voltage of the power should be
220-240VAC. The user must be aware that all power
supplies they provided should be obtained through
power circuit breakers (provided by the user), to
ensure that all voltages on the nodes of the provided
power supply circuit are released when the circuit
breakers are cut off.
All inductive components provided by the user (such
as coils of contactor, relay, and so on) must be
suppressed with standard resistance-capacitance
suppressors, to avoid electromagnetic interference,
thus leading to failure of the unit and its controller
and even damages to them.
All weak current wires led to the electric box must
apply shielded wires, which must be provided with
grounding wires. The shield wires and power supply
wires should be laid separately, to avoid
electromagnetic interference.
The unit must be provided with grounding wires,
which are not allowed to be connected with the
grounding wires of gas fuel pipelines, water
pipelines, lightning conductors or telephones.
Improper earth connection may cause electric shock,
so please check whether earth connection of the
unit is firm or not frequently.
Outdoor power supply
Outdoor
unit 1
Outdoor
unit 2
Outdoor
unit 3
Outdoor
unit 4
Outdoor
unit N
Manual switch
Manual switch
Manual switch
Manual switch
Manual switch
Notes:
1) MGBT- F25W/DN1, MGBT-D25W/DN1, MGBT-D30W/DN1 and MGBT-F30W/DN:
1 modular combination contains a maximum of 16 modular units.
2) MGBT- F60W/DN: 1 modular combination contains a maximum of 16 modular units.
3) MGBT- F120W/DN: 1 modular combination contains a maximum of 8 modular units.
4) MGBT- F180W/DN: 1 modular combination contains a maximum of 5 modular units.
Summary of Contents for MGBT-D25W/DN1
Page 34: ...R410a tropical air cooled scroll chiller unit 60Hz MCAC ATSM 2014 09 4 3 MGBT F120W DN1...
Page 38: ...R410a tropical air cooled scroll chiller unit 60Hz MCAC ATSM 2014 09 5 3 MGBT F120W DN1...
Page 47: ...MCAC ATSM 2014 09 R410a tropical air cooled scroll chiller unit 60Hz Capacity tables 47...
Page 50: ...R410a tropical air cooled scroll chiller unit 60Hz MCAC ATSM 2014 09...
Page 56: ...R410a tropical air cooled scroll chiller unit 60Hz MCAC ATSM 2014 09...
Page 60: ...R410a tropical air cooled scroll chiller unit 60Hz MCAC ATSM 2014 09 88...