Fieldpiece MR45 Operator'S Manual Download Page 2

Page: 2 / 18

Contents

Important Notice 4

What’s Included 4

Warnings 4

Certifications                                             5

Description                                                   6
Features

Specifications                                              8

Safety Information 10
First Aid for Refrigerant Exposure
General
Environmental
Personal Protection
MR45 Protection
Setup
Operational

Tech Tips 12
General
Setup
Operational

Controls 14
Display and Buttons
Status Icons and Messages
Port Routing Control
MR45 Refrigerant Flow
Dynamic Pressure Measurement

Functions 22
Self Test
Self Purge
Purging a Recovery Cylinder
Direct Liquid/Vapor Recovery
Push/Pull Recovery

Troubleshooting 28
Status Messages
Other Symptoms

Maintenance 30
General
Mesh Screen Filter

Limited Warranty 32
Obtaining Service

Summary of Contents for MR45

Page 1: ...Fieldpiece Refrigerant Recovery Machine OPERATOR S MANUAL Model MR45 ...

Page 2: ...ion Setup Operational Tech Tips 12 General Setup Operational Controls 14 Display and Buttons Status Icons and Messages Port Routing Control MR45 Refrigerant Flow Dynamic Pressure Measurement Functions 22 Self Test Self Purge Purging a Recovery Cylinder Direct Liquid Vapor Recovery Push Pull Recovery Troubleshooting 28 Status Messages Other Symptoms Maintenance 30 General Mesh Screen Filter Limited...

Page 3: ...perator s Manual 1 Year Warranty Certifications WEEE Do not dispose through typical waste streams IN ACCORDANCEWITH SECTION 608 OF THE CLEAN AIR ACT THIS EQUIPMENT HAS BEEN CERTIFIED BY UNDERWRITERS LABORATORIES INC TO MEET EPA S MINIMUM REQUIREMENTS FOR RECOVERY EQUIPMENT INTENDED FOR USEWITH REFRIGERANTS LISTED INTABLE 4 AHRI 740 98 WARNINGS Do not use to pump hydrocarbons explosion risk Do not ...

Page 4: ...45 is the first variable speed DC motor recovery machine with a digital display Pump refrigerant easier and quieter than ever before Connect your hoses without navigating around dark tight spaces or picking the pump off the ground View status messages and pressures directly on the big bright display Carry the machine to and from the job site easily and well protected from environmental hazards Tur...

Page 5: ...reading 2 psig Final RecoveryVacuum 14 9 Hg Compressor Twin cylinder reciprocating oil less DC Motor 1 HP variable smart speed Power Source 95 to 130VAC 60 Hz 1 phase Max Current Draw 12 0 AAC Valve Single dual route ball valve Input Port Filtration 9 mm mesh screen stainless Dimensions 14 8 x 9 8 x 13 5 376 mm x 250 mm x 344 mm Weight 22 lbs Operating Environment 32 F to 122 F 0 C to 50 C Storage...

Page 6: ...loves MR45 Protection 1 Use only on approved list of refrigerants page 9 2 Do not use with hydrocarbons 3 Ensure mesh screen filter is installed and clean page 30 Setup 1 Repair any damaged parts before using 2 Disconnect power and allow fan to stop before opening or servicing MR45 3 Perform self test periodically page 22 4 Ensure power cord is not damaged 5 Ensure all equipment is grounded 6 Exte...

Page 7: ...make it more convenient and increase speed by having 2 system hook ups 4 Use a Schrader valve core removal tool to temporarily remove valve cores from service valves 5 Use the push pull method if recovering over 30 lbs 6 Evacuate your empty recovery cylinders to 29 6 Hg before use 7 Know how much refrigerant you expect to recover before starting 8 Ensure there s enough room in the recovery cylinde...

Page 8: ...Port Routing Control Knob Input Port Mesh Screen Filter Backlit Digital Dual Display and Buttons Output Port Power Cord Storage 15 14 Controls ...

Page 9: ...t the motor again COMPLETE Motor stopped Purge or recovery has reached 10 Hg or 20 Hg vacuum for 10 sec Input Closed Cannot zero pressures Open input port Output Closed Cannot zero pressures Open output port High Voltage Warning Motor stopped Voltage was above 130VAC Low Voltage Warning Motor stopped Voltage was below 95VAC High Pressure Cutoff Motor stopped Output cylinder approached dangerous pr...

Page 10: ...close the IN port before you START the purge OR OR RECOVER Input and Output fully open Set to this fully open position for most of the recovery process OR OR RECOVER throttled Input and Output partially open Rotate away from RECOVER in either direction to reduce liquid slugging if knocking occurs This slows the flow of refrigerant so the machine operates more smoothly Only throttle as much as need...

Page 11: ... typically System typically Manifold knob control Condenser microchannel Dynamic Pressure Measurement MR45 pressure readings are designed only for monitoring pressures Do not use MR45 for diagnostic pressure measurements If a system s pressure is stable MR45 pressure readings will be close to your other pressure gauges If a system s pressure is changing pressure measurements at different locations...

Page 12: ...ses the IN port and routes the MR45 condenser to the intake of the MR45 compressor 2 Press START to empty MR45 into the recovery cylinder 3 Once 10 Hg is reached for 10 seconds the motor stops automatically Purging a Recovery Cylinder When the cylinder pressure is higher than expectedyoumayhavenon condensablesatthe topofthecylinder Useaseconddeeplyevacuated cylinder to pull out the non condensable...

Page 13: ...w side of manifold to purge low side hose 7 Fully open vapor valve of recovery cylinder 8 Press START to begin recovery 9 Adjust the knob as needed to throttle refrigerant flow if liquid slugging knocking occurs 10 When liquid recovery is complete open low side of manifold for vapor recovery 11 MR45 stops automatically after vacuum reaches 10 Hg for 10 seconds For a deeper vacuum press START to co...

Page 14: ... liquid system port 4 To purge air from system liquid hose briefly unseat hose fitting at cylinder s liquid port until vapor is seen 5 Fully open liquid valve of recovery cylinder and allow to pressurize 6 Set MR45 to RECOVER 7 Press START to begin recovery 8 Fully open vapor valve of recovery cylinder 9 To purge air from hoses briefly unseat hose fitting at vapor system port until vapor is seen 1...

Page 15: ...me or high cylinder pressure can be the cause Allow time for the motor to cool down before resuming and throttle the RECOVERY page 19 Motor Fault 2 Motor current amps rose above operating range Motor stopped Extremely high ambient temperature harsh liquid slugging extended recovery time or high cylinder pressure can be the cause Throttle RECOVERY and start the motor If fault occurs again throttle ...

Page 16: ...eenfilterbecomesdirtyand clogged it means it s working to keep your MR45 working well for a long time You need to clean or replace this screen often Visit our website for information on obtaining extra mesh screens 1 Loosen counter clockwise the securing hex nut on the IN port 2 Unscrew counter clockwise the grooved input fitting 3 Clean or replace the mesh screen 4 Hand tighten clockwise the groo...

Page 17: ...ble use of the machine Any implied warranties arising from the sale of a Fieldpiece product including but not limited to impliedwarrantiesofmerchantabilityandfitness for a particular purpose are limited to the above 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 claim of such damage expenses or economi...

Page 18: ...MR45 Fieldpiece Instruments Inc 2017 v19 ...

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