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Related Manuals for CTI GG-VL2-R
Summary of Contents for CTI GG-VL2-R
- Page 1 GG-VL2-R REFRIGERANT VENT LINE SENSOR Installation and Operation Manual...
- Page 2 GG-VL2-R Warning Use this product only in the manner described in this manual. If the equipment is used in a manner not specified by Calibration Technologies, the protection provided by the equipment may be impaired. This equipment should be installed by qualified personnel.
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Page 3: Table Of Contents
GG-VL2-R Table of Contents General description ........4 Installation ............4 Locating the entrance monitor ....4 Installation guidelines ......... 5 Wiring ............6 Operation ............7 Start-up ............7 Calibration ........... 7 Maintenance ............. 9 Troubleshooting ..........10 Specifications ..........10 Warranty ............ -
Page 4: General Description
GG-VL2-R General Description Installation Locating the sensor The GG-VL2-R Vent Line detector is a +24 VDC, three-wire, 4/20 mA sensor for CFC, HFC and HCFC Warning: Outdoor installation only. Never install refrigerant gases. It provides an industry standard the sensor indoors (e.g. Engine Room) linear 4/20 mA output signal compatible with most gas detection systems and PLCs. -
Page 5: Installation Guidelines
GG-VL2-R Installation Guidelines: • Always assume system could discharge at any moment. Stay clear of discharge path and have escape route planned. • Make sure refrigerant does not discharge onto sensor assembly or personnel working on sensor (i.e. mount sensor opposite side of discharge). -
Page 6: Wiring
GG-VL2-R Wiring Electrical wiring must comply with all applicable codes. Electrical Power: 24 VDC regulated, 85 mA. Output: Linear 4/20 mA output. Monitoring equipment may have a maximum input impedance of 700 ohms. Cable Recommendation: 20/3 shielded cable (General Cable C2525A or equivalent). Length of cable to sensor should be no greater than 1,500 ft. -
Page 7: Operation
Calibration • Unscrew calibration port cover and connect cal The GG-VL2-R detector has a similar response to most gas hose to hose barb fitting (see Figure 3). common halocarbon gases. For ease of bump testing •... - Page 8 GG-VL2-R Calibration port Unscrew cap to apply cal gas Sensor element assembly Zero and Span adjustments 40-200 mV mVDC Black Figure 3: Sensor Output and Zero/span Adjustments...
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Page 9: Maintenance
Sensor Element Replacement: When the sensor element becomes faulty, a replacement sensor element can be obtained from CTI. To replace the The GG-VL2-R sensor was designed for long life and sensor element, refer to Figure 3 and the following minimal maintenance. Calibration Technologies procedure. -
Page 10: Troubleshooting
GG-VL2-R Specifications Troubleshooting Sensor Fault: (low signal reading) Input Power: +24 VDC, 85 mA Indications: (any or all) Detection Principle: Solid-state • Red LED on transmitter lit. Detection Method: Diffusion Gas: CFC / HFC / HCFC refrigerants (R11, R12, R22, •... -
Page 11: Warranty
No goods shall be returned to CTI until receipt by the buyer of shipping instructions from CTI; and c) the right of CTI to require that the buyer provide proof of purchase such as the original invoice, bill of sale or packing slip to establish that the product is within the warranty period. - Page 12 GG-VL2-R-DOC1-0 20181026 ctiengineering.com | 866-394-5861...
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