C-Series Refrigerant
Leak Detection System (CRLDS)
Quick Start Guide

Safety Icon Explanation

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
FLAMMABLE Fire hazard! Sparking in a potentially explosive atmosphere! Explosion hazard!

Instructions Pertaining to Risk of Electrical Shock, Fire, or Injury to Persons

PLEASE READ BEFORE USING THIS MANUAL

•  This manual is part of the product and should be kept near the instrument for easy and quick reference.
•  The instrument shall not be used for purposes different from those described hereunder.
  It cannot be used as a safety device.
• Check the application limits before proceeding.
• Copeland reserves the right to change the composition of its products, even without notice, ensuring the same and unchanged functionality.

PLEASE READ BEFORE USING THIS MANUAL

• Verify that the supply voltage is correct before connecting the instrument.
• Do not expose the gateway to water or moisture: use the devices only within the operating limits avoiding sudden temperature changes with high atmospheric humidity to prevent formation of condensation.
• Disconnect all electrical connections before any kind of maintenance.
• Fit the transmitter where it is accessible by the end user for troubleshooting and replacement. The instrument must not be opened.
• In case of failure or faulty operation send the instrument back to the distributor or to Copeland with a detailed description of the fault.

Introduction

CRLDS Gas Detectors are used to monitor indoor air for any refrigerant leaks. The devices can be used for refrigeration applications (cold rooms, freezer rooms, machinery rooms).
These detectors are calibrated in various refrigerants available on the market. The sensitive elements are constructed using semiconductor (SC) technology and infrared (IR) technology.
The CRLDS Gas Detectors can be used in stand-alone applications or connected in Copeland Controllers. Communication with controllers uses an analog output, relays, or an RS485 Modbus serial connection. When a refrigerant leakage exceeding a programmable concentration threshold is detected, an alarm or warning status is activated, depending on the level of concentration set, and the CRLDS responds as follows:

• The combination of LEDs that are on changes
•  A dedicated internal relay (SPDT) is activated
• The Analog output is controlled (in proportion to the detected concentration
• The change in status is signaled via the RS485 Modbus output

Safety Precautions

Semiconductor sensors detect the gas they have been calibrated for, but are also sensitive to other types of gases, solvents, alcohol, or substances containing ammonia, such as cleaning products, present in the environment. This, in certain areas and applications, can lead to false alarms when the substances described above are present. Nonetheless, although they do not only detect the specific gas, but they also still give a reliable indication of the concentration of the gas they have been calibrated for.

This device is neither certified nor approved for operation in oxygen-enriched atmospheres.
Non-compliance can lead to EXPLOSION.

This device has not been designed to guarantee intrinsic safety when used in areas classified as hazardous (“Directive 2014/34/EU ATEX” and “NFPA 70, Hazardous Location”). For operator safety, DO NOT use it in hazardous locations (classified as such). If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

Technical Specifications

Technical Specifications	Semiconductor version	Infrared version
Power supply voltage**	24VDC/AC +/- 20%, 5W , 50/60Hz (Recommended P/N 250-2541 DIN rail mount 24VDC @ 15W power supply)
User Interface	App with Bluetooth®
Analog Output	4-20mA / 0-10V / 1-5V / 2-10V selected via software
Serial Communication	Modbus® RS485 isolated server
Digital Output 1 SPDT	Alarm – relay 1 A/24 VDC/AC, resistive load
Digital Output 2 SPDT	Warning/FAULT – relay 1 A/24 VDC/AC, resistive load
Relay Failsafe	Yes; Selectable
Selectable Delay	0-20 min; 1-minute steps, selectable via Modbus register/app
Hysteresis	± 10% of the threshold value
IP Protection	IP67
Typical Operating Range	0-1000 ppm	0-10000 ppm
Sensing Element	Pre-calibrated (also available as a spare part) with certificate
Remote Cable Length	5 meters
Storage Ttemperature	-40°F to +122°F (-40 °C to +50 °C)
Storage Humidity	5-90% relative humidity, non-condensing
Storage Position	Any
Operating Temperature	-40°F to +122°F (-40 °C to +50 °C)
Operating Humidity	5-90% relative humidity, non-condensing
Maximum Installation Altitude	2000 meters (6561 ft.)
Operating Position	Intended for vertical mounting with the sensor at the bottom
Precision*	<-10%/+15%	±5%
Start-up Time*	5 minutes	2 minutes
Working Life*	5 years	7 years
Calibration Procedure Requirements	12 months	Not required

• Reference conditions at 77°F (25°C) 50% RH atmospheric pressure 101.3 kPa
• The device is intended to be supplied from an isolated Limited Energy Source per UL61010-1, 3rd edition cl. 9.4 or Limited Power Source per UL60950-1 or Class 2 per NEC

Installation

General Information
The performance and overall effectiveness of the system strictly depend on the characteristics of the place where the gas detector is installed.
It is therefore necessary to scrupulously comply with and carefully analyze every detail of the installation process, including (but not limited to) the following aspects:

• Local, state and national regulations and standards governing the installation of gas monitoring equipment
• Electrical standards governing the laying and connection of power and signal cables to gas monitoring equipment
•  All possible environmental conditions that the devices will be exposed to
• The physical characteristics of the gas to be detected (in particular, its specific weight)
• The characteristics of the application (for example, possible leakages, movement of air, areas where gas may stagnate and collect, high pressure areas, etc.)
• The accessibility needed for routine maintenance and repairs
• The types of equipment and accessories needed to manage the system
• Any limiting factors or regulations that may affect system performance or installations

Installation Tips

The installation surfaces must not be exposed to continuous vibrations so as to prevent damage to the connections and electronic devices.

The gas detector must only be installed by qualified personnel. It is recommended to read the full manual completely in order to use the product correctly.

THERE IS NO GENERAL RULE for establishing the appropriate number of sensors and their location for each application. Therefore, the guidelines described below are intended as support for installers, and not as rules in their own right. Copeland accepts no liability for the installation of the gas detectors.

Sensor Height

Gas Type	Mounting Height
HFC / HFO / C3 H8 Propane (R290)	20 cm (7.87 in) above the floor
CO2 Carbon Dioxide (R744)	20 cm (7.87 in) above the floor

Installation Instructions
Once the optimal position to install the sensor has been chosen, it is recommended to install the sensor (identifiable on the device by the black sensor housing) in a vertical position, with the sensitive element (black part) facing downwards. The sensor can now be mounted on the wall, as follows :

1. Drill the holes in the wall using the measures on the bottom side of the detector (shown in the picture).
2. Fix the device using four screws, chosen according to the type of installation and the type of wall, maximum diameter 4 mm, minimum length 15 mm and torque 2.5 Nm.
3.  Fix the remote sensor using one screw, chosen according to the type of installation and the type of wall, maximum diameter 4 mm, minimum length 15 mm and torque 2.5 Nm.
4.  Open the cover of the device, fit the cable glands and make the required electrical connections. The plug-in terminals can be removed from the device to facilitate wiring.
5. Power ON the device and complete the settings using the rotary switch, as described in the following paragraphs, or using the app, as described below or through the Modbus connection.
6. Use the cable glands provided to pass through and connect the cables to the terminals, as shown in the figure below and in the Connection Table on page 5. The terminals can be removed to simplify wiring.
7. Close the cover.
   
8. Cord range for M16 cable gland 5 – 10 mm, for M22 cable gland 10 -14 mm.
9. Use UL listed approved cable, min. 122°F (50°C), suitable for electrical rating in application.
10. Tighten the cable glands with a torque of 2.5 Nm.
11. Close the cover.

All external circuits connected to device shall be double or reinforced isolated from mains meet SELV and Limited energy requirements according to clause 9.4 of UL61010-1 3rd edition.

•  Secure the detector cover with the four screws.
• Power the device on and set the parameters if the settings were not previously made using the rotary switch.

J1	+	Analog output
	G	Analog output reference
J2	Sh	Shielded RS485 cable
	G0	GND for RS485
	A	Tx + / Rx + for RS485
	B	Tx- / Rx- for RS485
J3	+24 Vac/DC	For Vac power supply, connect the second transformer wire
	+24 Vac/DC	For Vdc power supply, connect one of the two power wires, the device automatically recognizes whether this is + or GND. For AC power supply, connect one of the two transformer wires.
J4	1A	NO contact for the warning/fault relay
	2A	Common for the warning/fault relay
	3A	NC contact fo r the warning/fault relay
J5	1B	NO contact for the alarm relay
	2B	Common for the alarm relay
	3B	NC contact for the alarm relay
J6	+	NC contact for the alarm relay
	G	Service voltage reference
J7	/	Built-in version sensor connector
J8	/	Remote version sensor connector (connection not to be used for built-in products)

Connection Table

Installation Reminders

Before commencing electrical installation and wiring, carefully read the following notes:

• Power must be supplied by a safety isolation transformer (Class 2) or DC power supply with no Earth Ground connection on the low voltage side (24VAC or 24VDC).
• The cable for the relays must be sized and fitted with fuses based on the rated voltages, currents, and environmental conditions.
• If stranded wires are used, it is recommended to use an end terminal.
• To comply with RFI immunity regulations, the Modbus communication cable shield at the supervisor controller (E2, E3, Site Supervisor) end of network must be connected to Earth Ground (for example, to the earthed chassis, earth bar, etc.)
• Complete all wiring before powering on.

Device Operating States
The CRLDS Gas Detectors provide visual indications of their current operating status, in addition to the relay outputs. Visual indication of device operating status is provided by three LEDs (green/red/ orange). Device status and the corresponding outputs are displayed in the following table:

Status	LED	Warning Fault/Relay	Alarm Relay
Warm-up		OFF	OFF
Normal		OFF	OFF
Bluetooth®		OFF	OFF
Serial Connected	Internal LED W8 on steady	—	—
Warning Delay		OFF	OFF
Alarm Delay (RWF* = 0)		ON	OFF
Alarm Delay (RWF* = 1)		OFF	OFF
Warning (RWF* = 0)		ON	OFF
Warning (RWF* = 1)		OFF	OFF
Alarm (RWF* = 0)		ON	ON
Alarm (RWF* = 1)		OFF	OFF
Fault (RWF* = 0)		ON	ON
	Red and yellow on steady Green LED OFF
Fault (RWF* = 1)		ON	OFF
	Red and yellow on steady Green LED OFF

* RWF = Relay WF Modbus Register

Copeland CRLDS Application Features

The CRLDS Application lets users fully experience the potential of the new CRLDS detectors, allowing simple and intuitive interaction with the gas detector. This simplifies configuration by usinga smartphone to interface with the CRLDS detector.
The Copeland CRLDS Application is available on the Google Play Store and on the App Store®.
The mobile app can be used to perform the following functions:

• Configuration modify alarm thresholds, configure Modbus settings, modify relay behavior, and manage Analog output settings
• Maintenance check correct functioning of the device
• Calibration, complete with calibration report
• Display of current gas concentration measurement and indication of alarm/fault status

Connecting the Device via Bluetooth®
Before connecting to the device via the Copeland CRLDS Application, first make sure that the Bluetooth® connection and Geolocation are enabled on the smartphone used (Android™ only).
Make sure that Bluetooth® mode has been activated on the CRLDS using the magnetic key, as described in the previous chapter.
Open the mobile app (previously downloaded); the following screen is displayed.

Login Screen
	Select •   Operator – To continue displaying the gas detector variables and parameters. •   Technician – For password access and the possibility to set the parameters and variables. The password to unlock the device is 2222.
Bluetooth® Connection Screen
	If all the functions described above have been enabled on the smartphone and the Gas Detector is in Bluetooth® mode, the available devices are shown on the app screen. If this is not the case, touch the app screen to refresh the display. Verify that the serial number on the label of the device being connected matches the one displayed on the screen. Select the correct device and verify correct connection. The Bluetooth® symbol at the top right changes from red to green.

Home Screen
	From the home screen, it is possible to display the current concentration level measured by the sensor, with the corresponding alarm and warning thresholds. The following screens can also be accessed: •   PARAMETERS •   MODBUS SETUP •   Test •   Calibration •   More
Parameter Screen
	This screen displays the sensor parameters. It is also possible to select the type of gas to be detected, from those that are compatible with the sensor. See the other information chapter in this manual for further details. The following parameters can be displayed and modified if the user is logged with Technician access: •   Warning (ppm) Threshold for activating Warning. •   Warning Reset determines if warning will revert to IDLE automatically if gas levels drop below Warning threshold or requires manual acknowledgement to be reset. •   Alarm (ppm) Threshold for activation of Alarm. •   Alarm Reset determines if alarm will revert to IDLE automatically if gas levels drop below Alarm threshold or requires manual acknowledgement to be reset. •   Relay Warning Fault (RWF) – Activate to turn Warning relay into a dedicated fault relay. •   Output type – choose analog output scale for J1. Mode description is in Section 5. Operation. •   Alarm delay – the delay in minutes from the measured concentration passes the threshold value to the moment the alarm activates. Affects both Warning and Alarm. •   Gas type – the specific gas to be measured.

Modbus Setup Screen
	The following parameters can be set: •   Modbus address •   Baud rate •   Parity and stop bits Pressing SET DEFAULT sets the default parameters shown in the table in the Modbus setup paragraph (does not affect the Modbus address).
Test Mode Screen
	If enabled, the following functions can be activated in test mode, specifically not corresponding to the behavior of the device, rather for debugging. •   Warning relay •   Alarm relay •   Green LED •   Red LED •   Yellow LED •   Analog output
More Screen
	Displays the app technical and legal information. •   App settings – change the unit of measure for the temperature displayed in the app. •   Device Info – view information on the currently connected device. •   Create report – make a copy of the most recent report generated. •   Change logo – replace the default logo that is shown on the calibration certificate with a different one. •   Third party licenses – see information on the third-party licenses used.

Sensor Replacement Procedure

When the need for replacement is signaled via Modbus communication (coil 311 SensorExpired), proceed as follows

• Acquire a pre-calibrated sensor module with the same part number as the one mounted on the detector.
• Disconnect power.

Built-in Version

1. Open the cover.
2. Disconnect the sensor connector J7.
3.  Unscrew the sensor module from the case.
4. Screw in the new sensor module.
5.  Plug-in the sensor connector to terminal J7.
6.  Close the cover.

Remote Version

1. Loosen the cap off the cable gland so that the cable is free to move inside the cable gland.
2. Completely unscrew the cable gland. In the event of difficulties when loosening, use pliers.
3. Pull out the electronic board from its housing by pulling the remote sensor cable.
4. Unplug the sensor connector from the electronic board.
5. Unscrew the sensor module from the tube so as to separate it from the other parts of the device.
6. Pull out the sensor module.
7. Make sure the new sensor module has the same part number as the one just removed. Mount the sensor module in the opposite order to the above instructions for removal.

Ordering Information

CRLDS Gas Detector Part Numbers

Part Number	Description
809-1207	CRLDS Calibration Kit
809-1209	CRLDS, 0-1000ppm, Remote, SC, Group 1
809-1210	CRLDS, 0-1000ppm, Remote, SC, Group 2
809-1211	CRLDS, 0-1000ppm, Wall Mount, SC, Group 1
809-1212	CRLDS, 0-1000ppm, Wall Mount, SC, Group 2
809-1213	CRLDS, 0-10000ppm, Wall Mount, IR, CO2
809-1214	CRLDS, 0-10000ppm, Remote, IR, CO2
809-1221	CRLDS Sensor Module SC HFC/HFO Group 1, 1000ppm
809-1222	CRLDS Sensor Module SC HFC/HFO Group 2, 1000ppm
809-1223	CRLDS Sensor Module IR CO2, 10000ppm

Group 1 Gases	R32, R407A, R407C, R407F, R410A, R448A, R449A, R452A, R452B, R454A, R454B, R454C, R455A, R464A, R465A, R466A, R468A, R507A
Group 2 Gases	R22, R134a, R404A, R450A, R513A, R1234yf, R1234ze, R1233zde

For a full copy of the user manual, scan the QR Code:

https://www.copeland.com/documents/026-1318-crlds-user-manual-en-9291542.pdf

The contents of this publication are presented for informational purposes only and they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. Copeland reserves the right to modify the designs or specifications of such products at any time without notice. Responsibility for proper selection, use and maintenance of any product remains solely with the purchaser and end-user. ©2023 Copeland is a trademark of Copeland LP.

026-4427| R3 | 1023
copeland.com

Documents / Resources

	COPELAND C-Series Refrigerant Leak Detection System [pdf] User Guide C-Series, C-Series Refrigerant Leak Detection System, Refrigerant Leak Detection System, Leak Detection System, Detection System, System
	COPELAND C Series Refrigerant Leak Detection System [pdf] User Guide C Series Refrigerant Leak Detection System, C Series, Refrigerant Leak Detection System, Leak Detection System, Detection System

References

• User Manual