IN-VA07-B001-00 - 7 - © Future Products Group
APPENDIX A R-290 REFRIGERANT ...............................................................................33
General Guidance.......................................................................................................................................... 33
R-290........................................................................................................................................................ 33
Servicing................................................................................................................................................... 33
Specialized Training................................................................................................................................. 33
Environment ............................................................................................................................................. 33
Gas Detector ............................................................................................................................................ 33
Replacement Parts................................................................................................................................... 33
Fault Diagnosis......................................................................................................................................... 33
Check List................................................................................................................................................. 33
Servicing......................................................................................................................................................... 34
Gas Monitor.............................................................................................................................................. 34
Ignition...................................................................................................................................................... 34
Danger Sign.............................................................................................................................................. 34
Display a Danger Propane placard to alert all that you are working on a R-290 system......................... 34
No open flames or smoking is allowed..................................................................................................... 34
Fire Extinguisher....................................................................................................................................... 34
Access Fittings ......................................................................................................................................... 34
Electrical Connectors................................................................................................................................ 34
Replacement Components....................................................................................................................... 34
Tools ............................................................................................................................................................... 35
Basic Tools............................................................................................................................................... 35
Required Tools......................................................................................................................................... 35
Leak Checking ............................................................................................................................................... 36
Warning .................................................................................................................................................... 36
Detection Methods.................................................................................................................................... 36
Accessing the Refrigeration System........................................................................................................... 36
Installing Piercing Valves ......................................................................................................................... 36
Procedure................................................................................................................................................. 36
Recovering Refrigerant................................................................................................................................. 37
Recovery Machines.................................................................................................................................. 37
Procedure Without Machine..................................................................................................................... 37
Venting R-290................................................................................................................................................. 38
Venting Procedures.................................................................................................................................. 38
System Evacuation........................................................................................................................................ 38
Preliminary Tasks..................................................................................................................................... 38
NOTE........................................................................................................................................................ 38
Evacuation Procedure.............................................................................................................................. 39
Charging the System..................................................................................................................................... 39
WARNING ................................................................................................................................................ 39
Precautions............................................................................................................................................... 39
Removal and Sealing of Access Ports ........................................................................................................ 40
CAUTION ................................................................................................................................................. 40
Procedure................................................................................................................................................. 40
Electrical Repairs........................................................................................................................................... 40
CAUTION ................................................................................................................................................. 40
Guidlines................................................................................................................................................... 40
Check General Condition ......................................................................................................................... 41
R-290 SERVICING FLOW CHART ...................................................................................42