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GDPX+ Refrigerant System

Up To 16 Remote Detectors With MODBUS Capabilities

Merlin GDPX+

The Merlin GDPX+ is a 16 zone detection panel. Up to 16 detectors can be used in any combination and can be individually monitored on the GDPX+ TFT display.

The Merlin GDPX+ has a touch screen which displays two modes, the engineers mode and the user mode. A settings dip switch inside the controller allows the engineer/user to configure the system. When changes have been, the system will automatically restart once the settings switch is off.

The Merlin GDPX+ can be integrated with a BMS, mechanical ventilation, fire alarms and remote emergency buttons. Gas detectors are remote hardwired from the GDPX+ panel. The GDPX+ can activate remote audible alarm strobes in alarm through the designated 24VDC output. Liquid line solenoid valves and electrical contactors controlling appliances can also be shutdown in alarm.

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Merlin Refrigerant Gas Detector X

The Merlin Refrigerant Detector-X is an NDIR detector and is typically used as a standalone unit or in conjunction with a Merlin controller. Each of the available Merlin refrigerant target gases are heavier than air and will therefore drop, meaning the gas sensor should be mounted 12 inches from the floor of the protected area. At detection, the detectors will go into alarm at 1000ppm. When connected to a Merlin controller, built-in alarm relay outputs can be used to activate the power supply to a remote audible alarm and activate ventilation fans. This can then be rectified by resolving the leak, allowing the sensor head to clear and resetting the attached Merlin panel and detector.

For further information on our Merlin gas detectors please refer to our product data sheet.

Refrigerant Gases Available

R-1234yf
0-5000ppm / 0-6.2% LFL % Vol
R-1234ze
0-5000pppm / 0-6.5% LFL % Vol
R-134a
0-5000ppm
R32
0-10000ppm / 0-14.4% LFL % Vol
R-404a
0-5000ppm
R-407c
0-5000ppm
R-410a
0-10000ppm
R-454a
0-6.3% LFL % Vol
R-454b
0-7.7% LFL % Vol
R-454c
0-6.2% LFL % Vol
R-455a
0-11.8% LFL % Vol

Sounder/Visual Alarm Strobe

• 24V powered.
• Dip Switches allow the Sounder Alarm Beacon to be tailored to user’s needs.
• Easily connected to all our Merlin Gas Detection Systems.
• Easy Installation
• Covered by S&S Northern 3 Year Warranty.

Product Literature

Designed & Manufactured In The UK
40+ Years Industry Experience
3 Year Product Warranty
Family Business
Express Delivery Available
Easy To Install Solutions

The UK's leading designer, manufacturer and supplier of the latest range of gas safety & control products