On-Site Configuration - Midea MI2-28Q4DHN1 Installation And Operation Manual

Four-way cassette the 2nd generation dc vrf indoor unit
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6.5 Panel Wiring
Refer to the panel instructions to connect the docking terminals of the
display board and the swing motor.
Use the protection casing (accessory 14) to cover and protect the
terminal, and bind it firmly with tightening band (accessory 11). See
Figure 6.11.
Figure 6.11

7. On-site Configuration

7.1 Capacity Settings
Set up the PCB board DIP switch on the indoor electric control box to
cater to different uses. Once the settings are done, make sure you
cut off the main power switch again, and then switch the power on. If
the power is not cut off and switched on again, the settings will not be
executed.
POWER_S
ENC1
ENC1 Settings for Capacity DIP Switch:
D
P I
S
w
c t i
h
C
o
d
e
0
1
2
3
4
5
6
7
8
9
A
B
Caution
The capacity DIP switches have been configured before delivery. Only a
professional maintenance personnel should change these settings.
7.2 Address Settings
When this indoor unit is connected to the outdoor unit, the outdoor unit
will automatically allocate the address to the indoor unit. Alternatively,
you may use the controller to manually set the address.
The addresses of any two indoor units in the same system cannot
be the same.
The network address and the indoor unit address are the same,
and does not have to be configured separately.
Once the address settings are completed, mark the address of
each indoor unit to facilitate after-sales maintenance.
The centralized control of the indoor unit is completed on the
outdoor unit. For details, refer to the manual on the outdoor unit.
Caution
Once the centralized control function for the indoor unit has been
completed on the outdoor unit, the DIP switch on main control panel of
the outdoor unit must be set to auto addressing; otherwise, the indoor
unit in the system are not controlled by the centralized controller.
The system can connect up to 64 indoor units (address 0~63) at the
same time. Each indoor unit can only have one address DIP switch in the
system. The addresses of any two indoor units in the same system
cannot be the same. Units that have the same address may malfunction.
Protecting bush
Tightening band
C
a
p
a
c
y t i
2200W
2800W
3600W
4500W
5600W
7100W
8000W
9000W
10000W
11200W
12500W
14000W
7.3 DIP Switch Settings on Main Board
0/1 definition of each dial code switch:
means 0
SW1_1
SW1
Cooling mode temperature compensation is 0°C
[
]
0
SW1
Cooling mode temperature compensation is 2°C
[
]
1
SW1_2
SW1
EEV at position 96 (steps) in standby in heating mode
[
]
0
SW1
EEV at position 72 (steps) in standby in heating mode
[
]
1
SW2
SW2
Factory settings
[
]
00
SW3_1
SW3
Reserved
[
]
0
SW3
Clear indoor unit address
[
]
1
SW3_2
SW3
Reserved
[
]
0
SW4
In heating mode when the set temperature has been reached,
SW4
the fan operates in a 4 minutes off / 1 minute on repeating
[
]
00
cycle
In heating mode when the set temperature has been
SW4
reached, the fan operates in an 8 minutes off / 1 minute on
[
]
01
repeating cycle
In heating mode when the set temperature has been
SW4
reached, the fan operates in a 12 minutes off / 1 minute on
[
]
10
repeating cycle
In heating mode when the set temperature has been
reached, the fan operates in a 16 minutes off / 1 minute on
SW4
[
]
11
repeating cycle
SW5
In heating mode fan does not run when indoor heat exchanger
SW5
mid-point temperature is 15°C or below
[
]
00
In heating mode fan does not run when indoor heat exchanger
SW5
[
]
mid-point temperature is 20°C or below
01
In heating mode fan does not run when indoor heat exchanger
SW5
[
]
mid-point temperature is 24°C or below
10
In heating mode fan does not run when indoor heat exchanger
SW5
mid-point temperature is 26°C or below
[
]
11
SW6
SW6
Heating mode temperature compensation is 6°C
[
]
00
SW6
Heating mode temperature compensation is 2°C
[
]
01
SW6
Heating mode temperature compensation is 4°C
[
]
10
Heating mode temperature compensation is 0°C
SW6
(use follow me function)
[
]
11
SW7: reserved
13
means 1

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