2020 Tech Report Jan-Feb

1. Preparing for Refrigeration System Strainer Cleaning ACTION COMMENT 1. Ensure a Maintenance Work Order has been prepared and authorized.

Work orders are required for all maintenance activities. Consult your supervisor or facility contact if you have questions. NOTE: If performing Task # 2.c. “Cleaning a Strainer without Drain or Gauge Valves: Install- ing Drain Valves” a Management of Change (MOC) form must be prepared if the installed drain valve is to be permanent. The materials must conform to design stan- dards. Consult your supervisor or facility con- tact or review the facility Ammonia Refrigera- tion Compliance Program for this information. NOTE: Verify that all safety equipment and PPE is available and functional. Consult your supervisor or facility contact or review the facility Ammonia Refrigeration Compliance Program for this information. Facility personnel, contractors, and visitors should be trained on the dangers associated with ammonia, including early exposure detec- tion techniques. NOTE: Portable rinse bottles may be neces- sary depending on the location of the strainers. Per the Hazard Assessment for Refrigeration Operators / Technicians. NOTE: If you are using a portable lift, you must have current certification on the type of lift to be used. Perform a ladder inspection after set- up, but prior to use. Do not use facility equip- ment without authorization. If necessary, utilize the appropriate SOP to shutdown individual components of the Am- monia Refrigeration System.

If you are a visiting Refrigeration Opera- tor/Technician, ask your facility contact for all forms and authorization needed for the scope of your work. Verify the locations of the strainer(s) to be inspected. Verify the materials necessary for the work are compatible. (Strainer, screen or filter element, parts replacements, pipe, fittings, equipment, valves, etc.) Gather the appropriate tools and PPE. Gather the appropriate Standard Oper- ating Procedures (SOPs) for the equip- ment you will be working on, and ensure they are readily accessible. Ask your supervisor or facility contact to notify all affected departments and per- sonnel including: Facility personnel, con- tractors, and visitors. Prohibit all vehicular and pedestrian traf- fic in the vicinity of operation. Re-familiarize yourself with the location of escape routes, eyewash, and shower stations.

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Don required clothing and PPE.

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Place ladder (if required) and tie off per OSHA and facility requirements.

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Perform visual inspection of the associ- ated portion of the system to determine the correct isolation procedures.

RETA TECHNICAL REPORT PAGE 5