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Summary of Contents for Fieldpiece MR45CAN
- Page 1 Fieldpiece ® Refrigerant Recovery Machine OPERATOR'S MANUAL Model MR45CAN (for models with Zero Stop)
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Page 2: Table Of Contents
Contents Functions Safety Information Self Test Warnings Self Purge Caution Purging a Recovery Cylinder 80% Overfill Sensor Cable Port Description Direct Liquid/Vapor Recovery Features Push/Pull Recovery What’s included Troubleshooting Specifications Status Messages Other Symptoms Certifications UL Verified Performance Data Maintenance General Tech Tips Mesh Screen Filter... -
Page 3: Safety Information
Safety Information WARNING FAILURE TO HEED THESE HAZARDS AND ACTIONS CAN RESULT IN Read, understand, and follow this entire SERIOUS INJURY OR DEATH: manual, with special attention given to Warning • Do not operate in a wet location as electrical shock risk. and Caution statements before operating this •... -
Page 4: Caution
• Make power connection of the recovery machine and other equipment outside of the Temporary Flammable Zone • Bond the recovery machine outlet port to the recovery tank’s unpainted Intentionally Blank fitting with a grounding strap to dissipate static electricity build up during during recovery process •... -
Page 5: Description
Class A2L compatibility for a wide range of jobs To avoid contaminating recovered refrigerant, What’s Included MR45 automatically stops at 0 psig/bar by default MR45CAN Refrigerant Recovery Machine 10 Extra Mesh Screens for Input Port 3 Extra O-rings for Input Port 65 cm IEC Power Cord Operator’s Manual... -
Page 6: Specifications
Storage Environment: -4°F to 140°F (-20°C to 60°C) Common Representative Refrigerants: R12, R22, R32*, R134A, R143A*, R401A, R401B, R401C, R402A, R402B, R404A, R407A, R407B, R407C, R407D, R408A, R409A, R410A, R448A, R452A, R454B*, R500, R502, R507, R509, R1234YF*, R1234ZE* * Class A2L refrigerants US Patent: www.fieldpiece.com/patents... -
Page 7: Tech Tips
Tech Tips Ensure there’s enough room in the recovery cylinder to not exceed 80% filled during the job, or monitor and have a second cylinder ready. General Always purge hoses before recovery. If cylinder is too hot, use an Store in the self purge or recover position. Do not store in the ice bath to reduce the temperature and pressure of the cylinder. -
Page 8: Controls
Power Cord Storage Controls Port Routing Control Knob Mesh Screen Filter Backlit Digital Dual Display and Buttons Input Port Output Port IEC Power Cord Port and Plug Overfill Sensor Port (cable not included) Power Switch (O=Off, I=ON) -
Page 9: Display And Buttons
Display and Buttons OK TO START Motor stopped. Temperatures, voltages, and pressures are currently safe to start the motor again. Input Pressure Output Pressure COMPLETE/Low Pressure Cutoff Motor stopped. Input pressure/vacuum reached one of three ZERO SENSOR auto-stop levels for 10 seconds: 0 psig, -10 inHg vac, or -20 inHg vac PRESS 3 SEC (0 bar, -25 cmHg vac, or -50 cmHg vac) Tank 80% Full... -
Page 10: Port Routing Control
Port Routing Control RECOVER • Input and Output fully open. • Set to this fully open position for CLOSED most of the recovery process. • Input and Output closed. • Set to either closed position to close off both ports during setup or before purging. -
Page 11: Mr45 Refrigerant Flow
MR45 Refrigerant Flow Dynamic Pressure Measurement Refrigerant liquid and vapor are pulled through MR45 pressure readings are designed only the machine by the pressure difference created for monitoring pressures Do not use MR45 for by the compressor For maximum performance, diagnostic pressure measurements increase the IN pressure and reduce the OUT If a system’s pressure is stable, MR45 pressure... -
Page 12: Functions
Functions Purging a Recovery Cylinder When the cylinder pressure is higher than Self Test expected you may have non-condensables at the top of the cylinder Use a second deeply evacuated Perform this test to ensure the high pressure cylinder to pull out the non-condensables cutoff and pump are operational 1. -
Page 13: Direct Liquid/Vapor Recovery
Direct Liquid/Vapor Recovery This is the typical recovery method Vapor and Cylinder liquid lines are routed through your manifold, into MR45, and out to the recovery cylinder CAUTION: Understand all class A2L refrigerant warnings and notices if applicable (pages 4-6) Filter Drier 1. -
Page 14: Push/Pull Recovery
Push/Pull Recovery This method is only for larger systems with at Cylinder least 30 lbs (14 kg) of liquid refrigerant It’s used to recover liquid before recovering vapor CAUTION: Understand all class A2L refrigerant warnings and notices if applicable (pages 4-6). 1. -
Page 15: Troubleshooting
Troubleshooting Motor Fault 2 (throttle” shows on display) Motor current (amps) rose above operating range. Motor stopped. Extremely high ambient temperature, harsh liquid slugging, extended Status Messages recovery time, or high cylinder pressure can be the cause. Throttle Tank 80% Full RECOVERY and start the motor. -
Page 16: Maintenance
Maintenance Securing Hex Nut General Wipe with damp cloth to clean the exterior Do not use solvents To extend the life of internal seals, occasionally pump a teaspoon of mineral oil through MR45 Grooved Input Fitting Mesh Screen Filter When the mesh screen filter becomes dirty and clogged, it means it’s working to keep your MR45 O-ring working well for a long time You need to clean... -
Page 17: Limited Warranty
Visit our website to find Fieldpiece dealer. Fieldpiece will replace or repair the defective unit, at your local distributor. its option, subject to verification of the defect. - Page 18 Intentionally Blank Intentionally Blank...
- Page 19 MR45CAN © Fieldpiece Instruments, Inc 2023; v34...
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