Table of Contents
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Table of Contents
Related Manuals for Fieldpiece MR45
Summary of Contents for Fieldpiece MR45
- Page 1 Fieldpiece Refrigerant Recovery Machine OPERATOR'S MANUAL Model MR45...
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Page 2: Table Of Contents
Contents Important Notice Controls Display and Buttons What’s Included Status Icons and Messages Port Routing Control Warnings MR45 Refrigerant Flow Dynamic Pressure Measurement Certifications Functions Description Self Test Features Self Purge Purging a Recovery Cylinder Specifications Direct Liquid/Vapor Recovery Push/Pull Recovery... -
Page 3: Important Notice
This is not a consumer machine Only qualified personnel trained in the recovery or pumping of refrigerant may operate this machine Read and understand this operator’s manual in its entirety before using MR45 to prevent injury or damage to you or equipment WEEE Do not dispose through What’s Included... -
Page 4: Description
Description Features • Lightweight (22 lbs) The MR45 is the first variable speed DC motor • Smooth and Fast Operation (1 HP DC Motor) recovery machine with a digital display Pump • Digital Display with Status Messages refrigerant easier and quieter than ever before •... -
Page 5: Specifications
Specifications Display: 2 x 10000 count LCD with status messages Input Port Filtration: 9 mm mesh screen, stainless Dimensions: 14.8” x 9.8” x 13.5” Backlight: Blue color 376 mm x 250 mm x 344 mm Measurement rate: 3.3 times per second, nominal Weight: 22 lbs Input Port Pressure Sensor Range: -30”... -
Page 6: Safety Information
Ensure all equipment is grounded. Read and understand this operator’s manual in its entirety before Extension cord options: using MR45 to prevent injury or damage to you or equipment. 14 AWG or thicker, up to 50 feet (15 m) Environmental 12 AWG or thicker, up to 100 feet (30 m) Ensure extension cord is grounded, 3 conductor grounded. -
Page 7: Tech Tips
Tech Tips Know how much refrigerant you expect to recover before starting. Ensure there’s enough room in the recovery cylinder to not General exceed 80% filled during the job, or monitor and have a second cylinder ready. Store in the self purge or recover position. Do not store in the CLOSED position as trapped air and refrigerant can expand and Always purge hoses before recovery. -
Page 8: Controls
Controls Port Routing Control Knob Power Cord Storage Mesh Screen Filter Input Port Backlit Digital Dual Display and Buttons Output Port... -
Page 9: Display And Buttons
Status Icons and Messages The icon rotates when the motor is running. Input Pressure Output Pressure The icon is shown when MR45 is set to MUTE. OK TO START Motor stopped. Temperatures, voltages, and pressures are currently safe to start the motor again. -
Page 10: Port Routing Control
Port Routing Control RECOVER • Input and Output fully open. CLOSED • Set to this fully open position for most of the recovery process. • Input and Output closed. • Set to either closed position to close off both ports during setup. RECOVER (throttled) •... -
Page 11: Mr45 Refrigerant Flow
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
5. Press START to create a pressure at the OUT port. 4. Measure the vapor temperature of the pressurized refrigerant 6. MR45 is working well if High Pressure Cutoff occurs around 550 psig cylinder. within 45 seconds. Cutoff time can increase if a hose is placed in 5. -
Page 13: Direct Liquid/Vapor Recovery
MR45 stops again after vacuum reaches 20”Hg for 10 seconds. Press STOP to manually halt recovery at any time. Manifold 12. Set knob to SELF PURGE and press START to empty MR45. MR45 stops automatically after vacuum reaches 10”Hg for 10 seconds. Vapor 13. -
Page 14: Push/Pull Recovery
30 lbs of liquid refrigerant It’s used to recover liquid before recovering vapor 1. Close valves of recovery cylinder and MR45. 2. Set up as shown in the diagram. 3. Open valves of liquid hose and removal tool at liquid system port. -
Page 15: Troubleshooting
Ensure power cord and outlet are okay. CLOSED. Excessive noise during liquid recovery. Motor Fault 1 MR45 is experiencing a high load. Rotate the knob of MR45 to Motor temperature measured above operating range. Motor throttle the refrigerant flow. stopped. Extremely high ambient temperature, extended liquid recovery time, or high cylinder pressure can be the cause. -
Page 16: Maintenance
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 Screen... -
Page 17: Limited Warranty
Fieldpiece shall not be liable for loss of use of the machine or other incidental or consequential damages, expenses, or economic loss, or for any... - Page 18 MR45 © Fieldpiece Instruments, Inc 2017; v19...
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