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XYE communication wiring
Centralized controller
X Y
E
X Y E
Refrigerant system 1#
P Q
X Y E
Refrigerant system 2#
P Q
The XYE communication lines of the outdoor unit should be connected from the master unit.
The cross-sectional area of each core of the communication wiring is not less than 0.75 mm
exceed 1200m.
Connect the shielding nets at both ends of the shielded wire to the sheet metal "
6 CONFIGURATION
6.1 Overview
This chapter describes how the system configuration can
be implemented once the installation is complete, and
other relevant information.
It contains the following information:
Implement field settings
Using the Check function
INFORMATION
i
The installation personnel should read this
chapter.
6.2 Digital Display and Button
Settings
DSP1
SW5
SW4
SW3
MENU
DOWN
UP
ODU
P Q
E
H1
H2
L
N
P Q
E
E
L
N
IDU 1#
IDU 2#
ODU
P Q
E
H1
H2
L
N
P Q
E
E
L
N
IDU 1#
IDU 2#
CAUTION
DSP2
SW6
OK
Fig 6.1
41
...
3-(n-2)# IDU
P Q
E
L
N
IDU (n-1)#
...
3-(n-2)# IDU
P Q
L
E
N
IDU (n-1)#
, and the length must not
2
" of the electronic control box.
6.2.1 Digital display output
Table 6.1
Parameters
Outdoor unit state
displayed on
DSP1
Standby
Unit's address
---
Normal operation
Error or protection Placeholder and error or protection code
In menu mode
Display menu mode code
System check
Display system check code
6.2.2 Function of buttons SW3 to SW6
Table 6.2
Button
Function
In menu mode: previous and next buttons
SW3 (UP)
for menu modes.
SW4
Not in menu mode: previous and next
(DOWN)
buttons for system check information.
SW5
Enter / exit menu mode.
(MENU)
SW6
Confirm to enter specified menu mode.
(OK)
L
P Q
E
N
IDU n#
Resister
L
P Q
E
N
IDU n#
Resister
Fig 5.58
Parameters
displayed on DSP2
The number of indoor
units in communication
with the outdoor units
Running speed of the
compressor in
rotations per second
V.1
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