SA 3 134a - Sea Frost Refrigeration

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REFRIGERANT HANDLING AND SAFETYDo not proceed with any aspect of a procedure if you do not fully understand theprocedure and know what results to expect. Understand fully that pressure exists inrefrigeration systems. Be careful.REFRIGERANTSEA FROST is charged with REFRIGERANT-134a. R-134a is a chemical compoundcalled tetrafloroethane. It is almost odorless. Its boiling point is -15. degrees F. at sealevel. R-134a is heavier than air and it's label and container color is light blue.GENERAL SAFETY THIS IS IMPORTANT. READ THIS!R-134a is safe if handled properly. Avoid breathing vapors and prolonged skinexposure. Avoid using in areas of open flames. The vapor is heavier than air and mayreduce oxygen available for breathing. Use with sufficient ventilation to keep exposurebelow recommended limits. Do not mix with air for leak testing or use with air forany purpose above atmospheric pressure. Liquid R-134a will freeze skin. It'sespecially dangerous to the irreparable tissues of the eyes.--WEAR EYE PROTECTION--YOU WOULD BE A LOUSY BLIND MUSICIAN.Do not pressurize an empty system with R-134a without first evacuating thesystem with a vacuum pump.WARNING. DANGER. NEVER OPERATE A SYSTEM WITH THE HIGH SIDE(DISCHARGE) OPEN TO the REFRIGERANT SUPPLY. PRESSURIZATION OF THEREFRIGERANT SUPPLY COULD CAUSE IT TO BURST.16
PROCEDURES FOR WORKING WITH R-134a1) A new uncharged system must be evacuated before adding R-134a.2) An R-134a system must only be pressurized with R-134a or nitrogen.3) Only service tools dedicated to R-134a are to be used. No parts, tubing, fittings,receivers, driers, service gauges, or any refrigerant carrying components may be fittedto a R-134a system from a used system or from a CFC based system. Damage causedby the use of parts not supplied by Sea Frost for a R-134a system will cancel all claimsagainst Sea Frost.4) No oil is to be added to the SA-III system but the polyoester oil supplied by SeaFrost, labeled and capped for SA-III use. No oil is to be added to a system with out priorconsultation with Sea Frost.5) The oils used in R-134a systems are extremely moisture sensitive (hydroscopic).Do not leave any tube end or component connection open to air while assembling thesystem. Be sure to use only new-capped copper tubing and be sure to cap the copperoil after cutting it.17
Page 1 and 2: 148 OLD CONCORD TURNPIKE BARRINGTON
Page 3 and 4: SA-III OPERATIONThe SEAFROST SA-III
Page 6 and 7: It is IMPORTANT that NO WATER flows
Page 9 and 10: NOTES ON SWAGELOK FITTINGSSwagelok
Page 11: * SWAGELOK FITTINGS ARE TO BE TIGHT
Page 14 and 15: The RFD is a reservoir for excessre
Page 18 and 19: ACCESS TO THE SYSTEM: SERVICE PORTS
Page 20 and 21: Disconnecting the gauge set on a st
Page 22 and 23: LEAK CHECKINGLeak checking is a ver
Page 24 and 25: READING THE SIGHT GLASSA clear sigh
Page 26 and 27: CHECKING THE REFRIGERANT CHARGEPERI
Page 28 and 29: a) If the refrigerator box and SEA
Page 30 and 31: WATER CIRCUIT30
Page 32 and 33: 148 OLD CONCORD TURNPIKE BARRINGTON

SA 3 134a - Sea Frost Refrigeration

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