MITSUBISHI HEAVY INDUSTRIES RLD-WR-1 Relay Cable Refrigerant Leak Detector Installation Guide
- June 28, 2024
- MITSUBISHI HEAVY INDUSTRIES
Table of Contents
MITSUBISHI HEAVY INDUSTRIES RLD-WR-1 Relay Cable Refrigerant Leak
Detector
Specifications
- Model: RLD-WR/1
- Applicable model: CENTRAL CONTROL (SL4 or later)
Product Usage Instructions
Accessory Parts
No.
| Part Name | Q’ty |
|---|---|
| Relay cable | 1 |
| Installation manual (this document) | 1 |
Settings of Refrigerant Leak Detector
- Set up the Dip SW of the refrigerant leak detector as follows: SW2-2ON, SW2-3OFF. If the Dip SW is not set up, the detector cannot be used as an audible alarming device.
Wiring Connection
- Connect the R/C cable to DO2 of the central control using the CNMA connector (2P, white). Refer to the central control’s installation manual for detailed instructions on how to connect to it.
- Connect the R/C cable to the relay cable by connecting the 2P white connector of the relay cable to the CNMA terminal on the detector board. Ensure to install the upper case carefully to avoid pinching the wiring.
- Place the connection section between the R/C cable and the relay cable inside the detector.
Settings of Central Control
- Set the OPEN/CLOSE setting of Malfunction Output (Normal) to OPEN. Set Malfunction Output (ALL/Leakage) to LEAKAGE (refrigerant leakage). Refer to the user’s manual of the central control for instructions on how to set it up.
FAQ
Q: How do I know if the Dip SW is set correctly on the refrigerant leak detector?
A: Ensure that SW2-2 is ON and SW2-3 is OFF for the detector to function as an audible alarming device. If not set up this way, the detector cannot be used for this purpose.
- Model: RLD-WR/1
- Applicable model: CENTRAL CONTROL (SL4 or later)
- This document is the installation manual for the relay cable (RLD-WR/1) to be used to connect the refrigerant leak detector to the central control (SL4 or later).
- Please also refer to the installation manual provided with the refrigerant leak detector.
- This relay cable can be used as an audible alarming device by connecting the refrigerant leak detector to the central control.
- In that case, no power is supplied to it as it is not connected to an indoor unit.
- Follow the installation manual provided with the refrigerant leak detector to connect the power supply (DC18V).
Accessory parts
| No. | Part Name | Qty |
|---|---|---|
| 1 | Relay cable | 1 |
| 2 | Installation manual (this document) | 1 |
Settings of refrigerant leak detector
- Set up the Dip SW of the refrigerant leak detector as follows.
- SW2-2：ON
- SW2-3：OFF
- If the Dip SW is not set up, this detector cannot be used as an audible alarming device.
Wiring connection
- Connect the R/C cable to DO2 of the central control.
- For instructions on how to connect to the central control, refer to the installation manual provided with the central control.
- Connect the R/C cable to this relay cable.
- Connect the connector (2P, white) of the relay cable to the terminal (CNMA) on the detector board.
- Install the upper case with care not to pinch the wiring.
- Place the connection section between the R/C cable and the relay cable inside the detector.
Settings of central control
- Set the “OPEN/CLOSE setting of Malfunction Output (Normal)” to “OPEN”.
- Set “Malfunction Output (ALL/Leakage)” to “LEAKAGE(refrigerant leakage)”.
- For instructions on how to set up the central control, refer to the user’s manual of the central control.
Read User Manual Online (PDF format)
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