Air Conditioning Control System
Centralized Controller
EW-50A/EW-50E
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.
Before installing the controller, please read this Installation Manual carefully to ensure proper operation.
Retain this manual for future reference.
Installation and Instructions Manual
Contents
2. Introduction ..................................................................................6
2-1. Part names ..................................................................................................... 6
4. Specifications ...............................................................................9
4-3. Product features ............................................................................................11
6. Installation ..................................................................................23
6-1. Items not included ........................................................................................ 24
6-4. Installation space .......................................................................................... 26
8. Initial settings .............................................................................36
9. Test run ......................................................................................39
11. Maintenance ...............................................................................45
11-3. Software update .......................................................................................... 48
12. Error code list .............................................................................52
12-1. M-NET errors .............................................................................................. 52