Midea MIV V4+ Mini Service Manual page 55

DM12-01.01.05en
4.2 Pipe size selection
4.2.1 Selection of the refrigerant pipe
Type of the pipe
Main pipe
Indoor main pipe
Indoor pipe
A
4.2.2 How to choose the Branch part and the refrigerant pipe?
According the total capacity of outdoor units to select the dimension of main pipe 1:
Refrigerant
R410A
Remarks
Notes: Branch header must be connected with indoor units directly, the further branch connection is not allowed.
4.2.3 The maximum connection of indoor units:
Capacity of outdoor unit (kW)
8.0
4.2.4 According the capacity of indoor units to select indoor main pipe 2
The total capacity of indoor units A
A≤16.6kW
16.6≤A≤230
Installation
Connecting part
Between outdoor branch joint and first branch joint
Between indoor branch joint
Between branch part and indoor unit
Capacity of outdoor
unit (kW)
80
A converter pipe is needed for the connection between first branch joint and outdoor unit.
Maximum Quantity of Indoor unit
Indoor main pipe dimension
Gas Side(mm)
19.1
22.2
MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
Gas side
15.9
4
Liquid Side(mm)
9.5
9.5
Liquid side
9.5
Sum capacity of indoor unit (kW)
2.2~10
ain pipe 1 and branch joint:
, m
The model of branch
joint for indoor units
FQZHN-01
FQZHN-02
No.
1
2
3
53