Midea VRF Series User Manual

V6R VRF 50/60Hz
75
Part 5
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Electrical Components and Wiring Diagrams
6 Mode Selection Box Main PCB
6.1 Ports
MS01
Figure 5-6.1: MS01 main PCB ports
1
Notes:
1. Label descriptions are given in Table 5-6.1
Table 5-6.1: MS01 main PCB ports
Label in
Figure 5-5.1
Code
Content
Port voltage
1
CN24
Temperature sensor(T1C1,T2C2) connection
5VDC
2
CN17
Electric ball valve A connection
12VDC
3
CN18
Electric ball valve B connection
12VDC
4
CN19
Electric ball valve C connection
12VDC
5
CN22
Electric expansion valve A connection
12VDC
6
CN20
Program port
5VDC
7
CN3,CN4,CN5,CN6,CN7
Refrigerant sensors connection
12VDC
8
CN1
Ventilation fan connection
0-1A/0-24VDC/AC
9
CN2
Alarm connection
0-1A/0-24VDC/AC
10
CN10
Communication port to outdoor unit
5VDC
11
CN14
Communication port to indoor unit
5VDC
12
CN11
Communication port to monitor
5VDC
13
CN89
UPS connection
220-240VAC
14
CN88
Power supply connection
220-240VAC
15
SW1,SW2,SW3,SW4
Switches
5VDC
1
2
3
4
5
9
7
8
10
11
12
13
14
6
15

Midea VRF Series Specifications

General

Brand	Midea
Model	VRF Series
Category	Air Conditioner
Language	English