Refrigerant handling and safety – Sea Frost DC 5000 User Manual
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[ ] 4. Check all the hose clamps for tightness.
[ ] 5. Check the neatness of the installation, sufficient service access, secure wiring,
and make sure tubing and hoses are supported to prevent damage and chafing.
[ ] 6. Check the service access. The service access ports must allow
attachment of the connecting service valves.
[ ] 7. Check (after leak checking and testing) that the tubing is properly insulated.
REFRIGERANT HANDLING AND SAFETY
Do not proceed if you do not fully understand the procedure and know what results to
expect. Understand that pressure exists in refrigeration systems. Be careful.
DISCLAIMER
The gauges, adapters, hoses and tools described in this manual are available from Sea
Frost. We are not familiar with all equipment and cannot be sure we are covering
procedures that can be preformed without the same equipment. Be certain you
understand what you are doing and how each valve, check valve, can tap, adapter, and
gauge set works before connecting to a charged system or a refrigerant supply.
REFRIGERANT
The SEA FROST DC 5000 is charged with REFRIGERANT 134a. R-134a is a chemical
compound called tetrafloroethane. It is odorless. Its boiling point is -15. degrees F. at
sea level. It is heavier than air. It's label and container color is light blue. R-134a is
used in auto air conditioning systems and should be available in auto parts stores.
GENERAL SAFETY THIS IS IMPORTANT. READ THIS!
R-134a is safe if handled properly. Avoid breathing vapors and prolonged skin
exposure. Avoid using in areas of open flames. The vapor is heavier than air and may
reduce oxygen available for breathing. Use with sufficient ventilation to keep exposure
below recommended limits. Do not mix with air for leak testing or use with air for
any purpose above atmospheric pressure. Liquid R-134a will freeze skin. It's
especially dangerous to the irreparable tissues of the eyes.
--WEAR EYE PROTECTION--
Do not pressurize an empty system with R-134a without first evacuating the
system with a vacuum pump.