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Installation, Operation & Maintenance Manual
Merlin Detector i-S
MERLIN
Refrigerant Gas Detector i-S
R134a / R32 / R410a / R1234ze
INSTALLATION & OPERATION INSTRUCTIONS
Please read these instructions carefully and retain for future use.
These instructions can be downloaded in electronic form on the product website.
cmrelectrical.com
1
Iss: 5 11-03-24
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Table of Contents
Summary of Contents for CMR Electrical MERLIN R134a
- Page 1 Installation, Operation & Maintenance Manual Merlin Detector i-S MERLIN Refrigerant Gas Detector i-S R134a / R32 / R410a / R1234ze INSTALLATION & OPERATION INSTRUCTIONS Please read these instructions carefully and retain for future use. These instructions can be downloaded in electronic form on the product website. cmrelectrical.com Iss: 5 11-03-24...
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Page 2: Table Of Contents
Installation, Operation & Maintenance Manual Merlin Detector i-S Contents Important Warning Statements ..............3 Installation ...................... 4 Typical Application & Location ....................4 Mounting & Cabling ......................... 5 Circuit Board Overview ......................6 Wiring: Power Input ........................6 Wiring: Alarm Relays ........................ 7 Alarm Relay Setting Switch –... -
Page 3: Important Warning Statements
Installation, Operation & Maintenance Manual Merlin Detector i-S Important Warning Statements Warning Symbol! Where this symbol is used, consult the manual to understand the nature of any potential hazards and how to avoid them. Please take the time to thoroughly read these instructions which should be retained for future reference. Detectors are shipped pre-calibrated and configured. -
Page 4: Installation
Installation, Operation & Maintenance Manual Merlin Detector i-S Installation Typical Application & Location Installation must be carried out by a licenced, insured contractor! Ensure that detectors are not exposed to liquid or dust contamination! Detectors and cables must be protected against mechanical damage! Avoid conditions of any other environmental factors outside of the specification that could potentially impede the accuracy and operation of the detector such as condensation;... -
Page 5: Mounting & Cabling
Installation, Operation & Maintenance Manual Merlin Detector i-S Mounting & Cabling If mounting direct to wall - ensure the wall surface is flat to prevent base distortion! Ensure the rear base is installed in the correct orientation as shown! Where cable glands/conduits are used for wire entry, use 20mm (3/4 inch) max separated by at least 20mm! Any parts that form part of the connections/installation must have a minimum fire-retardant rating of UL94v-2! Fill any holes drilled to maintain integrity of the equipment! Damage to PCBs when creating cable entry points or attempting to remove the circuit board may void any warranty! -
Page 6: Circuit Board Overview
Installation, Operation & Maintenance Manual Merlin Detector i-S Circuit Board Overview Damage to PCBs when creating cable entry points may void any warranty! Any damage attempting to remove the circuit board may void any warranty! A disconnector is required and accessible for the 24V supply and an adequate overcurrent device is fitted! Wiring: Power Input Standalone Power Power can be provided either 24Vac or 12-24vdc. -
Page 7: Wiring: Alarm Relays
Installation, Operation & Maintenance Manual Merlin Detector i-S Wiring: Alarm Relays These are volt free connections to a BMS (building management systems) or Merlin panel to send an alarm signal upon pre/alarm levels of gas. Max 1A load @ 12/24Vdc or ac. If you are connecting detector(s) via a GDP panel you will need to use the [C/L] terminal as an alarm relay. -
Page 8: Operation
Installation, Operation & Maintenance Manual Merlin Detector i-S Operation Initial Power Up On connecting power, the detector enters a warmup phase for approximately 60 seconds – during this period, your device not yet ready for operation. Pre-Alarm Main Alarm Latched Relay Alarm The detector will indicate a red dot on the screen when the alarm relay has latched. -
Page 9: Maintenance
Installation, Operation & Maintenance Manual Merlin Detector i-S Maintenance Cleaning Concentrations of alcohol found in many products may damage, deteriorate or affect the gas sensing elements such as; wine; deodorants; stain removers and thinners. Other gases and substances to avoid are corrosives (i.e., chlorine & hydrogen chloride);... -
Page 10: Bump Test Procedure
Installation, Operation & Maintenance Manual Merlin Detector i-S Bump Test Procedure To increase reaction time, cover the escape vents at the sides of the device. Always remove the regulator/valve if using a cylinder after use! Always give at least five (5) minutes between testing the same unit or until gas has fully dispersed! Always consider safety and use equipment in accordance with Safety Data Sheets! Reference should always be given to any applicable national &... -
Page 11: Specification
Installation, Operation & Maintenance Manual Merlin Detector i-S Specification General 5.95 x 4.37 x 1.97” (151 x 111 x 50mm) Size: (H x W x D) Housing Material: ABS PA765. Flame Retardant UL 94V-1 Mounting: Safe Zone - Indoor use - Wall Mounted Weight: 212g User Interface... - Page 12 Every effort is made to ensure the accuracy of this document; however, CMR Electrical can assume no responsibility for any errors or omissions in this document or their consequences. CMR Electrical would greatly appreciate being informed of any errors or omissions that may be found in the content of this document.
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