Air Conditioning Control System
Centralized Controller
TW-50A
Before installing the controller, please read this Installation Manual carefully to ensure proper operation.
Retain this manual for future reference.
Installation and Instructions Manual
Safety notes are marked with
WARNING
or
CAUTION, depending on the severity
of possible consequences that may result
when the instructions are not followed
exactly as stated.
Proper installation is important for your
safety and proper functioning of the units.
Thoroughly read the following safety
precautions prior to installation.
Contents
1. Safety precautions ..................................................... 2
1-1. General precautions ..............................................................2
1-2. Precautions for unit installation .............................................3
1-3. Precautions for electrical wiring ............................................3
1-4. Precautions for relocating or repairing the unit .....................4
1-5. Additional precautions ...........................................................4
2. Introduction ................................................................ 6
2-1. Part names ............................................................................6
3. Package contents ....................................................... 8
4. Specifications ............................................................. 9
4-1. Product specifications ...........................................................9
4-2. External dimensions ............................................................10
5. Installation .................................................................11
5-1. Items not included ...............................................................12
5-2. Items sold separately ..........................................................12
5-3. Installation space ................................................................13
5-4. Installation procedures ........................................................14
6. Wiring connections ................................................... 17
6-1. Removing/reinstalling the service cover ..............................17
6-2. Connecting AC power cables and M-NET transmission
cables ..................................................................................19
6-3. Connecting the LAN cable ..................................................21
6-4. Confirming the LAN transmission delay time ......................21
7. Initial settings ........................................................... 23
7-1. Initial settings ......................................................................23
7-2. Quick IP address (LAN1) setting .........................................24
7-3. Network settings .................................................................. 25
8. Test run .................................................................... 26
8-1. Collective operation ON/OFF ..............................................26
9. External input/output ................................................ 27
9-1. External signal input/output function ...................................27
9-2. Pulse signal input function ..................................................29
10. Maintenance ............................................................. 30
10-1. Inspection and maintenance .............................................30
10-2. Back up/import settings data .............................................31
10-3. Software update ................................................................35
10-4. Software information .........................................................38
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