Yr-E12 - Haier YR-H 71 Service Manual

position 1
0: ON
indoor bus line
1: OFF
central bus line
For example:
Select central bus line, master central controller, control range is 00, so the dip switch is 1 0 0 0 (default)
Select indoor bus line, master central controller, control range is 00, so the dip switch is 0 0 0 0.
1.9.7. Can set the central control unit as a group, and the max. 64 units of indoor can be set a group.
After setting unit, the indoor in one group can be controlled the same operation (when out of factory, one
unit is regarded as one group).
connecting board
IGU04
central controller
1.9.8. Control function
1. Features and functions of central controller
Central controller control(ICR01) diagram is as below:
connecting board 1
IGU04
central controller
connecting board ...
ICR01 IGU04
B-A
B-B
connecting board5
IGU04
1.9.9.Summarization
For installation, connect communication wires from central controller ICR01 port B-A,B-A, to connecting board IGU04. and then connect
communication wires from IGU04 P,Q to outdoor or indoor unit communication port P,Q. Notice, the default position of ICR01 dip switch
is 1 0 0 0, the address of IGU04 and the indoor address must be set in different number.
When one central controller control one air condition system, also can directly connect wires from ICR01 B-A,B-B port to P, Q port of
outdoor or indoor communication port.
2 3
master controller
00: 1~64
slave controller
10: 129~192 11: 193~256
Indoor 3
Indoor 1
Indoor 2

YR-E12

YR-E12
Unit 1 Unit 2
Figure 5 Central unit and group diagram
P,Q
outdoor
unit 1
wired controller
YR-E12
P,Q
outdoor
P,Q
outdoor
Figure 6 MRV II central control system diagram
Commercial Air Conditioner
4
01: 65~128
Indoor 1 Indoor 2
Unit 3
wired controller
YR-E12
unit 2
max. 16 indoors
wired controller
YR-H71
unit 64 (max. 64 units)
37
Indoor 3
YR-E12
unit 3
Infrared controller
YR-H71