Indications for Use ............................................................................................................................................................... 3

De nition of Symbols .......................................................................................................................................................... 3

Explanation of Signal Word Consequences ................................................................................................................... 4

CONTRAINDICATION: ...................................................................................................................................................... 4

WARNING: ........................................................................................................................................................................... 4

CAUTION: ............................................................................................................................................................................. 4

NOTICES................................................................................................................................................................................ 4

Proper Use and Maintenance ............................................................................................................................................ 5

Read Before Servicing Equipment.................................................................................................................................... 5

Safety Inspection ................................................................................................................................................................. 5

Overview ....................................................................................................................................................................................... 5

Overview of Model 675 Warming Unit............................................................................................................................ 5

Overview of Control Panel................................................................................................................................................. 5

Important Alarm Symbols and Indicators ....................................................................................................................... 6

Warming Unit Mode Summary .......................................................................................................................................... 6

Unit Power-On-Reset .......................................................................................................................................................... 6

Operation Mode ................................................................................................................................................................... 6

Standby Mode ...................................................................................................................................................................... 6

Sleep Mode ............................................................................................................................................................................7

Fault Conditions ....................................................................................................................................................................7

Diagnostic Mode ...................................................................................................................................................................7

Diagnostic Mode menu item functional descriptions................................................................................................... 8

Exiting the Diagnostic Mode.............................................................................................................................................. 8

Service Procedures .................................................................................................................................................................... 8

Installing and Replacing the Power Cord ........................................................................................................................ 8

Rolling Cart Removal and Installation .............................................................................................................................. 8

Attaching the hose ............................................................................................................................................................... 9

Removing the Hose.............................................................................................................................................................. 9

Testing the Alarm.................................................................................................................................................................. 9

Replacing the Air Filter........................................................................................................................................................ 9

Calibrating the Operating Temperature .......................................................................................................................... 9

Testing the Over-Temperature Detection System ....................................................................................................... 10

Viewing the Fault Code Log............................................................................................................................................. 10

General Maintenance and Storage....................................................................................................................................... 10

Cleaning Instructions ........................................................................................................................................................ 10

Storage ................................................................................................................................................................................. 10

Troubleshooting ..........................................................................................................................................................................11

Technical Support and Order Placement..............................................................................................................................11

When you call for Technical Support...............................................................................................................................11

In-Warranty Repair and Exchange....................................................................................................................................11

Speci cations .............................................................................................................................................................................12

Certi cations ..............................................................................................................................................................................13

Classi cation ..............................................................................................................................................................................13

Frequently Asked Questions (FAQ) on Filtration...............................................................................................................14

References:..................................................................................................................................................................................14

Maintenance Checklist ............................................................................................................................................................14

Maintenance Log ................................................................................................................................................................15

English / 34-8720-2487-1

Over-Temperature Condition ....................................................................................................................................7

Under-Temperature Condition ..................................................................................................................................7