DIP Switch Configuration
Controller Overview
This section describes steps required to properly configure the controller with the universal FCU application. For further information, please see the RAC18-IP Software and Hardware user manuals.
RAC18-IP controller
The S3 DIP switch is responsible for configuring the application.
The configuration of the RAC18-IP controller with the universal FCU application is described step by step in the section of the manual:
Step 1: selecting the FCU pipe type;
Step 2: selecting 1 or 2 stages of heating;
Step 3: selecting 1 or 2 stages of cooling;
Step 4: selecting the type of control the FCU valves require, and heating and cooling actuators connection details;
Step 5: selecting the temperature control value source;
Step 6: selecting the type of fan used within the project.
Steps 1-6 describe configuration of the S3 DIP switch. Their overview with default positioning is presented in the table below.
No. | Name | On | Off | Default | |
|---|---|---|---|---|---|
1 | Pipe mode | 2-pipe | 4-pipe | 4-pipe | |
2 | Heating 2nd stage | Enable | Disable | Disable | |
3 | Cooling 2nd stage | Enable | Disable | Disable | |
4 | Heating/cooling control mode | Analog | Digital | Digital | |
WARNING! Before attempting to configure the controller, make sure to have acquainted with all the required documentation, or have a good knowledge of the fan coil unit application–this will make configuration of the controller easy and trouble-free.