Press ZERO button until home screen is displayed. Display Screen Features Refrigerant Refrigerant High Side Low Side Pressure Pressure Saturation Saturation Temperature Temperature Superheat Subcooling Calculation Calculation Actual Temperature Actual Temperature Low Side High Side JB INDUSTRIES • DM4 Operating Manual • 630.851.9444 • sales@jbind.com...
4. Scroll to the desired display mode using UP s and DOWN t arrows 5. Press the ENTER button 6. On the left side of the screen “Data Saved” will show and the screens will be updated JB INDUSTRIES • DM4 Operating Manual • 630.851.9444 • sales@jbind.com...
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6. Select Reset Left for the left thermocouple or Reset Right for the right thermocouple 7. Press the ENTER button 8. This will reset to factory default settings; to reset both at the simultaneously select FACT Default 9. Press ENTER button when complete JB INDUSTRIES • DM4 Operating Manual • 630.851.9444 • sales@jbind.com...
6. Select Zero Left for the left pressure transducer (low side) or Zero Right for the right pressure transducer (high side) 7. Press the ENTER button Troubleshooting For advanced diagnosis contact JB Industries. JB INDUSTRIES • DM4 Operating Manual • 630.851.9444 • sales@jbind.com...
To purge refrigerant from Back seated and Closed Open Closed Open — discharge valve cracked open To evacuate with auxiliary Open Open Open Closed Midway open Midway open vacuum pump JB INDUSTRIES • DM4 Operating Manual • 630.851.9444 • sales@jbind.com...
Ensure that all returned products are packed to avoid any damage in shipment. Paperwork should be placed in a separate plastic bag and should include JB’s assigned RGA number, a description of the problem and any customer assigned repair or purchase order number, if applicable.