Recover XLT Direct Liquid Vapor Revovery Safe Work Procedure
Page 1 of 8 / WSHMS-02C-SWP-123
Division: /

RETSD

/

Analysis By:

/

Kildonan-East Staff

/

Date:

/ April 4, 2011
Department: / Kildonan-East Collegiate /

Supervisor:

/

Frequency:

/ Hourly

Job Title:

/

Climate Control

/ Approved By: /

JSA Number:

/ CC 23

Job Title:

/ Recovering XLT of Direct/Vapor using a Yellow Jacket Convertor / Job Performed By: /

Teacher and or students

Required Personal Protective Equipment: CSA approved safety goggles, CSA approved steel-toed footwear and glove protection required.

GENERAL NOTES: No lighters, matches or cell phones are allowed in the shop area. Long necklaces, bracelets and rings should be removed. Long necklaces, bracelets and rings should be removed. Long hair should be tied back. Strings and hoods hanging from pullovers/sweaters should be removed.

Job Safety Analysis:

Step / Description / Hazard / Controls
1 / Ensure clean work area, check for any flammable or combustible materials. / Fire, Explosion. / Good Housekeeping, keep area clean, clear away debris. Ensure that flammable or combustible materials are moved away before starting work. Make sure surface is clean and dry.
2 / Instructor must first visually inspect the tanks and project before recovering the gas. / Exposure of gas in the environment. Transfer of wrong gas causing major damage to the Yellow Jacket System. / Instructors to inspect the project before the students continue.
3 / Make sure the hoses for handling the refrigerant are 3/8”. The hoses should be the minimum length required for each job and equipped with a shut-off device (such as the compact ball valve). / Reduce the likelihood of refrigerant leaks to the atmosphere. / Check the hoses and the shut off valves before starting the process.
4 / Ground all equipment. Plug the recover XL/XLT into a properly grounded receptacle using the appropriate plug. / Electrical short or chock may occur. / Check plug and receptacle before continuing.
5 / Check the power cord for any nicks or tares in the cord. / Electrical short or shock may occur. / Make sure there aren’t any tares or cutes in the power cord.
6 / Do not pressure test with compressed air. Some mixtures of air and refrigerant have been shown to be combustible at elevated pressures. / Combustible at elevated pressures. / Do not pressure test with compressed air.
7 / Use in areas with sufficient ventilation.
Recover should not be used near open containers of gasoline or any other flammable liquid.
Do not allow refrigerants to come in contact with open flame. Refrigerant decomposition in flame in results in phosgene gas. / Avoid dangerous environments.
Flammable, combustibility.
Breathing phosgene gas can be fatal. / Use in areas with sufficient ventilation. Check surrounding areas for combustibles.
8 / Use caution when connecting or disconnecting the hoses. / Frostbite / Personal protective equipment should be worn to protect operator from frostbite.
9 / Always disconnect recovery machine from power before servicing. / Electrical Shock / Disconnect power before servicing system.
10 / Use the Recover XL/XLT with the proper operating conditions before further use. / Damage unit. / Make sure the teacher has checked to verify it is the right refrigerant.
#11 / Know the type and quantity of refrigerant present before servicing any system. / Familiarize yourself to the system and refrigerant.
#12 / Turn off power to the system being serviced turn the selector knob to the off position. / Electrocution / Make sure all power is off.
#13 / Connect you manifold to the system being serviced. High side to the liquid port and low side to the vapor. See manual. / Frostbite / Make sure the valves are in the closed position before connecting. Be sure to connect hose ends with shut-off to suction and discharge ports of recovery machine. (For best performance use 3/8” hoses).
#14 / Connect the utility port of your manifold to the ¼” suction port of the Recover XL. See manual. / Frostbite / Make sure the valves are in the closed position before connecting. Be sure to connect hose ends with shut-off to suction and discharge ports of recovery machine. (For best performance use 3/8” hoses).
#15 / Connect one hose from the recovery cylinder (liquid side) to the ¼” DISCHARGE port of the recovery XLT. / Frostbite / Make sure the valves are in the closed position before connecting. Be sure to connect hose ends with shut-off to suction and discharge ports of recovery machine. (For best performance use 3/8” hoses).
#16 / Purge all hoses of non- condensable before recovering refrigerant into recovery cylinder. / Frostbite
#17 / Open the liquid valve on the recovery tank.
#18 / Turn the Recover XLT on.
#19 / Turn the selector VALVE on the Recovery XLT to either LIQUID or VAPOR position.
#20 / Open the utility and wither High Side or Low Side valves on the manifold. Remember it is more efficient to recover the liquid refrigerant first. / CAUTION: Do not over-pressure low side gauge.
#21 / Turn the system switch off. Turn the selector valve clockwise to OFF. Turn the system switch on. Turn the selector valve to PURGE position.
#22 / When the unit again shuts down and the lamp indicates RECOVERY COMPLETE, the recovery and purge cycles are complete. / NOTE: If the machine is not recovering, refer to the troubleshooting guide on page 9. Restart procedures are on the side of the machine and below.

AUTHORIZED EMPLOYEE INFORMATION:

ID NUMBER: / LAST NAME: / FIRST NAME: / REMARKS:

JOB HISTORY INFORMATION:

DATE: / REMARKS:

Approval Signature:Date:

Page 1 of 8 Print Date: Jun/27/2005