REFRIGERANT RECOVERY Log Book

R E F R I G E R A N T L O G

1) Policy 2) Troubleshooting 3) Condensers Replaced 4) Compressors Replaced 5) Appliance Disposal 6) Accidental Venting 7) R22 NEW 8) R22 Recover CLEAN 9) R22 Recover BURNT 10) R410a NEW 11) R410a Recover CLEAN 12) R410a Recover BURNT

TAB 1

REFRIGERANT RECOVERY Refrigerant Certification and Recordkeeping May 13, 2015 As required by Section 608 of the Federal Clean Air Act, all persons involved in work which involves refrigerant, the access to a sealed refrigeration or air conditioning system, or the disposal of equipment containing refrigerant must have the appropriate Environmental Protection Agency (EPA) certification. There are (4) four categories of technician certification: TYPE I TYPE II TYPE III UNIVERSAL Persons who maintain, service, or repair small appliances, i.e., refrigerators, freezers, window A/C units, dehumidifiers, under-the-counter ice makers, vending machines, and drinking water coolers. Persons who maintain, service, repair, or dispose of high pressure appliances, i.e., conventional split system heat pump and air conditioner systems. Persons who maintain, service, repair, or dispose of low pressure appliances, i.e., chiller systems. This classification indicates that the individual is certified in all of the abovementioned categories. CERTIFICATION RECORDKEEPING The Community Manager shall be responsible for the recordkeeping and archival of certification documents, and shall ultimately be responsible for compliance with all the requirements of this policy. 1. For each current employee who is certified, the Community Manager shall complete the following: a. Confirm a legible copy of the employee s certification card is filed in the Refrigerant Recovery Log Book. b. Post a scanned copy onto the Benchmark X-Drive in the Employee Certification Cards folder. c. Forward a scanned copy of current and/or updated certification cards to Benchmark s Human Resources Director. 2. For former employees, if certification cards are available, the Community Manager shall file a legible copy of certification card(s) in the Refrigerant Recovery Log Book and post a scanned copy onto the Benchmark X-Drive in the Employee Certification Cards folder. 3. For any employee who has come from another Benchmark community and has completed any service request dealing with refrigerant or the disposal of appliances containing refrigerants while at the community, the Community Manager shall post a scanned copy onto the Benchmark X-Drive in the Employee Certification Cards folder.

GENERAL RECORDKEEPING In accordance with the Environmental Protection Agency (EPA) recordkeeping requirements, the Service Manager shall maintain the information listed below and ensure the documentation is being completed timely and accurately by all service team members. As such, the Service Manager shall maintain the following: 1. Documentation for the service, maintenance, repair, or disposal of appliances which contain refrigerant. a. Documentation shall include refrigerant tracking logs, appliance disposal forms, service requests in OneSite, and OneSite invoices for the purchase of refrigerants and appliances containing refrigerants. b. Digital information in OneSite is sufficient documentation; no additional paper hardcopy is required to be saved or filed. 2. Records indicating the specific equipment or appliance containing refrigerant which was serviced, maintained, repaired, or disposed. 3. Records indicating the amount of refrigerant used during the service, maintenance, or repair of each specific system or appliance containing refrigerant. 4. Records indicating the amount of refrigerant recovered or recycled during the service, maintenance, repair or disposal of any system or appliance containing refrigerant. 5. A copy of each receipt or invoice for the purchase of any refrigerant. a. Digital information in OneSite is sufficient documentation; no additional paper hardcopy is required to be saved or filed. 6. Maintain and monitor the Refrigerant Recovery Logs as needed for completeness and accuracy. 7. Periodically verify the weight of refrigerant cylinders which are in use, and confirm the tracking log is up to date and accurate. a. These periodic checks shall occur at least every 30 days during the air conditioning season or heat pump heating season when refrigerants have been used or recovered. 8. Upon delivery of a refrigerant cylinder to the community, clearly label the cylinder with a unique number, weigh the refrigerant, and log the corresponding weight into the refrigerant tracking sheet. a. Typically, the date the cylinder was delivered is used as the unique tracking number, followed by an additional letter or number if multiple cylinders are received on the same date. For example: 5/12/2015-A, 5/12/2015-B, etc. 9. Scanned copies of the Refrigerant Logs, Appliance Disposal forms, Accidental Venting Reports, and all other documentation in the Refrigerant Recovery Log Book shall be uploaded and posted onto the Benchmark X-Drive. a. Recurring service requests will automatically be generated in OneSite for these tasks. If these service requests are not automatically generated, post files monthly. b. Pages which have previously been scanned and posted onto the drive do not need to be re-scanned and re-posted.

10. As long as all EPA Log documentation has been scanned and properly posted onto the Benchmark X-Drive in the appropriate folders, and the files are named according to the current policy, log pages which are older than 12 months may be removed from the binder and destroyed. CERTIFIED EMPLOYEES 1. If required by Federal, State or Local code, certified employees must carry a wallet size certification card with them while handling refrigerant or when servicing or disposing of equipment which contains refrigerant. ALL EMPLOYEES 1. Special warning to all employees: any individual found venting refrigerant is subject to disciplinary action up to and including termination, in addition to any Federal, State, or Local fines which may be imposed.

POLICY ACKNOWLEDGEMENT By signing below, I hereby acknowledge that I have read and understand Benchmark s Refrigerant Certification and Recordkeeping policies, and that I am familiar with the Environmental Protection Agency s (EPA) requirements for the proper use and handling of refrigerants and other substances covered under the Clean Air Act. I further acknowledge that I will promptly and accurately maintain required documentation and usage records, and I understand that failure to comply with the requirements of this policy or the requirements of the EPA Clean Air Act will result in disciplinary action leading up to or including termination. Printed Name Signature Date

EPA CERTIFICATION VERIFICATION As a Benchmark Management service associate, it is important that we verify your EPA recovery certification and comply with all EPA regulations. Please Check the Appropriate Certification that You Currently Have TYPE I small appliances TYPE II residential split systems TYPE III low pressure chillers UNIVERSAL Please list the name of the testing facility that your certification is with on the line below: Please Print Name of Testing Facility and contact information (if known) Print Name Signature Date Please have your certification card available so that it can be photocopied and attached to this form. NOTE: In the past it was a common procedure to list the person s Social Security Number on their certification card. DO NOT copy the Social Security Number if present on the certification card.

TAB 2

Guide to Using Superheat and Subcooling Calculators

R-22 Superheat and Subcooling Calculators

Page 1

A/C Troubleshooting Guide I. WHAT TO DO FIRST (inside) A. Go to thermostat 1. Put lever in Manual fan position. a. If blower runs: 1. 24 volt circuit is intact (including relay and transformer). 2. 115 volt circuit is intact. b. If blower motor will not run: 1. Power Failure. 2. Blower fuse or tripped breaker. 3. Open disconnect switch. 4. Faulty wiring. 5. Open in control circuit (green circuit). 6. Loose terminals. 7. Control transformer bad. 8. Blower relay. 9. Bad run capacitor. 10. Thermostat. 11. Motor overload switch open because of dirty blower. 2. Make sure lever is in cool position. 3. Make sure temperature setting is calling for cooling. 4. Check thermostat for dirt or loose wires and bulb operation. B. Ask resident how long A/C has been turned on. C. Ask resident what they did with thermostat and then instruct them. D. Be sure cold air return is NOT blocked. E. Be sure air is un-obstructed to thermostat. F. Be sure no windows are open. G. Be sure all interior doors have been open. H. Be sure air supplies are open. I. Check furnace filters and evaporator coil for dirt. J. Check blower squirrel cage for dirt buildup. Page 2

A/C Troubleshooting Guide K. Evaporator coil frosting. 1. Evaporator fins dirty or plugged. 2. Evaporator air volume low (dirty blower). 3. Dirty filters. 4. Plugged or restricted capillary tube. 5. Low refrigerant charge (see Super Heat Charging ). 6. Low suction pressure. 7. Duct work undersized. L. Go Outside. 1. Look for overgrown shrubs around condenser unit or other obstructions. 2. Look for grass clippings or trash against condenser coil. 3. Compressor will NOT run, condenser fan will NOT run. a. See II A. 4. Compressor will NOT run, but condenser fan RUNS. a. See II B. II. TROUBLE-SHOOTING SYSTEM A. Compressor won t run/condenser fan won t run. 1. Contacts open (defective contacts). 2. No power to unit (tripped breaker). 3. Bad fuse in disconnect or pulled loose. 4. Room thermostat defective. 5. Control circuit open (yellow circuit). 6. Low voltage transformer defective. 7. Contactor coil open. 8. Loose wiring or terminals (look for arcing burns). 9. Time delay switch still open. 10. Loss of 230 volt power (3 phase with phase out). 11. Compressor overload tripping breaker. B. Compressor won t run/condenser fan will run. 1. Bad wiring from contactor to compressor (loose terminals). Page 3

A/C Troubleshooting Guide 2. Thermal overload switch open or defective (see Overheating Compressor in Helpful Hints ). 3. Compressor windings internal open (see Compressor Electric Testing ). 4. Run capacitor bad. 5. Compressor locked up. 6. Compressor windings internally shorted (see Compressor Electric Testing ). Be Careful! 7. Low voltage (phase out of three (3) phase. 8. Start capacitor bad. 9. Potential relay fails to close. 10. Unequalized pressure (leave unit off for a few minutes). C. Compressor hums, but won t run. 1. Bad wiring from contactor to compressor (loose terminals). 2. Compressor windings internally open (see Compressor Electric Testing ). 3. Run capacitor bad. 4. Compressor locked up. 5. Compressor windings internally are shorted (see Compressor Electric Testing ). Be Careful! 6. Low voltage (phase out of three (3) phase) or 115 volts. 7. Start capacitor bad. 8. Potential relay fails to close. 9. Unequalized pressure (leave unit off for a few minutes). D. Compressor runs continually, but no cooling. 1. Defective compressor valves. 2. Evaporator fins dirty or plugged. 3. Dirty filters. 4. Low refrigerant charge (see Super Heat Charging ). 5. Condenser fins dirty or plugged. 6. Condenser air re-circulating (trim shrubs). 7. Low condenser air volume (blade loose, wrong motor). Page 4

A/C Troubleshooting Guide 8. Evaporator air volume low (wrong blower, restrictions). 9. Duct work undersized. 10. Plugged or restricted capillary tube. E. Compressor cycles on overload. 1. Bad wiring from contactor to compressor (loose terminals). 2. Thermal overload switch open or defective (see Overheating Compressor in Helpful Hints ). 3. Compressor windings internally open (see Compressor Electric Testing ). 4. Run capacitor bad. 5. Compressor locked up. 6. Compressor windings internally shorted (see Compressor Electric Testing ). Be Careful! 7. Low voltage (phase out three (3) phase) or 115 volts. 8. Start capacitor bad. 9. Unequalized pressure (leave unit off for a few minutes). 10. Potential relay fails to open. 11. Defective compressor valves. 12. Low refrigerant charge (see Super Heat Charging ). 13. Over charge of refrigerant (see Super Heat Charging ). 14. High head pressure. 15. High suction pressure. 16. Non-condensables (air in line). F. Noisy compressor. 1. Defective compressor bearings. 2. Discharge line hitting inside of compressor shell. 3. Defective compressor valves. III. READING PRESSURE (gauge manifold) A. Head Pressure Too High. 1. Condenser fins dirty or plugged. 2. Condenser air re-circulating. Page 5

A/C Troubleshooting Guide 3. Low condenser air volume. 4. Plugged or restricted capillary tube. 5. Over-charged refrigerant (see Super Heat Charging ). 6. High ambient temperatures. 7. Non-condensables (air in line). B. Head Pressure Too Low 1. Defective compressor valves (low side will be high). 2. Condenser air temperature low. 3. Low refrigerant charge (see Super Heat Charging ). 4. Low suction pressure. C. Suction Pressure Too High 1. Defective compressor valves (high side will be low). 2. Over charge of refrigerant (see Super Heat Charging ). 3. High head pressure. 4. High ambient temperatures. D. Suction Pressure Too Low 1. Evaporator fins dirty or plugged. 2. Evaporator air volume low (dirty blower). 3. Dirty filters. 4. Low refrigerant charge (see Super Heat Charging ). 5. Duct work undersized or restricted. 6. Plugged or restricted capillary tube or liquid filter. E. High Suction line Pressure/Low Head Pressure 1. Compressor bypassing internally (heat pump). 2. Reversing valve hung up or leaking (heat pump). 3. Defective compressor valves. 4. Restricted metering device. 5. High side restriction. 6. Metering device out of calibration (don t ream med jet valve). F. Suction line Frosting or Sweating (also compressor). Page 6

A/C Troubleshooting Guide 1. Super heat adjusted too low (over charged) (See Super Heat Charging ). 2. Evaporator fins dirty or plugged. 3. Evaporator air volume low. 4. Low refrigerant charge (see Super Heat Charging ). 5. Dirty filters. 6. Plugged or restricted capillary tube. IV. COMPRESSOR ELECTRICAL TESTS A. While Compressor Running 1. Low amperage draw. a. Defective compressor valves. b. Condenser air temperature low. c. Low refrigerant charge. 2. High amperage draw. a. Low voltage. b. Defective compressor bearings. c. Seized compressor. d. Condenser fins dirty or plugged. e. Condenser air re-circulating (trim shrubs). f. Low condenser air volume (loose fan blade). g. Over charge of refrigerant (see Super Heat Chart ). h. High head pressure. i. High ambient temperatures. j. Non-condensables (air in line). B. Compressor Won t Run 1. Check for hot to ground. a. Disconnect 230 volt power and capacitor. b. Remove cap on compressor exposing three (3). c. Using Volt/Ohm Meter and leads set on RX 10K, hold one (1) lead on case or copper line (scratch through paint). Alternately hold other lead to C, R and S terminals. Page 7

A/C Troubleshooting Guide d. There should be infinity ( ) reading (open). e. If another resistance reading is observed condemn compressor. 2. Check for open windings. a. Disconnect 230 volt power and capacitor. b. Remove cap on compressor exposing three (3) terminals. c. Using Volt/Ohm Meter and leads set on RX1: 1. Hold one lead on R terminal and another on S terminal. 2. Hold one lead on R terminal and another on C terminal. 3. Hold one lead on S terminal and another on C terminal. d. In each case there should be a resistance valve (closed circuit). e. If a value of infinity ( ) is recorded between any terminals condemn compressor. V. OTHER PROBLEMS A. Overheating Compressor. 1. Low refrigerant charge (see Super Heat Charging ). 2. Loose electrical connections. 3. Low or high voltage. 4. High ambient temperature (excessive). 5. Over working (see Head Pressure Too High ). B. Dirty Condenser Coils (grass clippings, overgrown shrubs, etc.). 1. Compressor must work harder (high head pressure). 2. More power consumption. 3. Shortens compressor life. 4. Wash out coils at least once per year with non-acidic detergent. C. Compressor Flood Back Causes (liquid refrigerant into compressor). 1. More likely with capillary tube system. 2. Evaporator fins dirty or plugged. 3. Super heat adjusted to low (over charge) (see Super Heat Charging ). 4. Evaporator air volume too low. 5. Dirty filters. Page 8

A/C Troubleshooting Guide 6. Duct work undersized or blocked. 7. Over-feeding evaporator coil. D. Damage Caused by Flood Back. 1. Damage to valves. 2. Dilutes crankcase oil leading to bearing, piston damage. 3. Slugging so much liquid in cylinder that foaming occurs (damage to piston, valves). VI. HELPFUL HINTS A. Use non-acidic detergent coil cleaner to clean evaporator coil with high pressure water (don t bend fins) or non-acidic detergent for condenser coils. Evaporator coils are dirty before it shows. B. Proper heat passing through evaporator coils protects compressor from flood-back. C. Always let unit run for several minutes to stabilize before testing. D. As heat rises, pressure rises/as heat drops, pressure drops. E. Suction line pressure tells you about evaporator temperature. F. High side pressure tells you about condenser performance and restrictions. G. High ambient temperatures will cause suction line and liquid line pressures to increase. H. Super heat gives proper charge. I. Don t charge to correct low suction pressure until you check items in Suction Pressure Too Low. J. Low charge can be destructive to compressor, also because the super heated vapor cools compressor crankcase. K. Freon does not wear out or disappear. If you have to charge unit you have a leak to find. L. Always charge by Super Heat! 1. Read section Super Heat Charging. 2. Don NOT charge by: a. Feeling suction line. b. High side temperature 30 degrees over ambient temperature. c. Running amperage of compressor. Page 9

A/C Troubleshooting Guide 3. These don t allow for condition of evaporator and indoor ambient temperature or performance of condenser. M. Unit should maintain apartment at least 10 to 12 degrees below outside ambient temperature. Also, a unit running properly can only lower temperature about 1 degree per hour if unit is trying to overcome a hot apartment. N. If breaker trips periodically unit may be short cycling because of lack of familiarization of thermostat by resident. 1. Instruct resident of it s use. O. Sometimes short cycling can be eliminated by installing a time delay switch on 24 volt circuit before contactor. P. If system is evacuated, always add liquid line filter. (Freon is an excellent cleaner). Q. If system is evacuated after compressor burn out; flush system thoroughly to remove contamination; add liquid line filter and suction line filter (Freon is an excellent cleaner). Suction line filter should be removed after a few days. R. Be careful not to condemn compressor 40% of condemned compressors nationwide should NOT have been (Not our communities). S. If contactor is clicking or burned replace. T. Heat pump check: 1. High and low pressure switches. 2. Defrost controls. U. If resident has closed off room doors or supply registers: 1. Evaporator will be starved. 2. Suction line pressure will drop. 3. Possible compressor flood back. V. Remember, it is possible to have two or more problems at the same time. 1. Use the process of elimination; i.e. high suction pressure and low high side pressure sounds like compressor valve problem, but could be overcharged unit running on cold day. Do NOT overlook the obvious. W. If air conditioner is running properly for some time and apartment is still hot check for damage to attic insulation, loose ductwork or gap in plenum. Page 10

A/C SYSTEM TROUBLE SHOOTING SYMPTON POSSIBLE CAUSE SOLUTION Suction Presssure Too Low Low on refrigerant Check for leak, repair leak, and recharge Dirty filter Replace air filter Evaporator fan running slow Check rpms, make sure blower tight on motor shaft & replace if necessary Evaporator fan wrong rotation Change rotation of fan Evaporator dirty Clean evaporator Restriction in metering device Clean out restriction or replace Restricted drier Replace drier Suction Pressure Too High Heat load too high Reduce heat loan or give system time to pull down Valves in compressor bad Replace compressor Too much air going across evaporator Slow down evaporator fan Head Pressure Too Low Defective compressor Replace compressor Low on refrigerant Check for leak, repair Head Pressure Too High Condenser dirty Clean condenser System over charged Remove refrigerant to proper charge Air in system Remove charge, evaluate and recharge Condenser fan wrong rotation Correct rotation Condenser fan running too slow Check rpms; replace fan if necessary Compressor stuck or locked up Try hard start kit; replace compressor ELECTRICAL CIRCUIT TROUBLE SHOOTING Furnace Fan Will Not Start Fan motor burned out Replace Fan relay not closing Check 24 volts, replace Thermostat not working Jump R and G, replace thermostat Short in 24 volt wiring Check continuity, replace wiring Transformer Keeps Burning Out Transformer too small Check size and replace if necessary System wire size or type wrong Correct wiring Short in wiring Check wire, repair/replace Evaporator Ices Up Dirty filter Replace filter Rotation of evaporator fan wrong Change rotation of fan Evaporator fins dirty Clean evaporator Fan running too slow Speed up fan Compressor Will Not Start Contactor not closed Check 24 volts, replace contactor Thermostat not working Jump R to Y, Replace thermostate Short in 24 volt wiring Check continuity, rpelace wiring Loose connection or corroded connection Tighten connections, clean connection Transformer or step down bad Replace Compressor Will Not Start, No power Check breaker, reset; check power No Hum, Compressor Cool supply to compressor, repair Overload on compressor burned out Replace compressor Open winding on compressor Replace compressor Compressor Trips Breaker When Capacitor shorted out or bad Replace capacitor Compressor Turned On Compressor stuck or grounded Check amp draw, try hard start, replace compressor Bare wires or short in wiring Repair/replace wiring Compressor wired wrong Correct wiring Compressor Hums But Will Not Start Start winding open Replace compressor Start capacitor bad Replace start capacitor Run capacitor bad Replace capacitor

Compressor Check Guide Testing a Compressor for Electrical Shorts 1. Using an ohm meter, check for continuity between the common terminal and the compressor casing; check between the run terminal and the compressor casing; check between the start terminal and the compressor casing. If there is not a continuity reading, the compressor has grounded out and must be replaced. 2. Using an ohm meter, check for continuity between the common, run and start terminals and measure the amount of resistance in ohms. The ohm reading between common and run should be the lowest; between common and start should give the next lowest; and between run and start should be the highest. If there is no reading between terminals, then the windings have burned out or the overload is defective. The readings between common and run and between common and start should add together and equal the reading between start and run. **Generally, on 3 ton or smaller compressors, the ohm reading between start and run should not exceed 20 ohms. Compressor Terminal Diagram C (common) S (start) R (run)

CONDENSING UNIT REPLACEMENT INSTRUCTIONS For condensers which are being installed as replacements for condensers which are the same capacity and efficiency. 1. Disconnect all power to the unit. Lockout power sources and Tagout. 2. Follow the evacuation instructions at the end of this document and remove all refrigerant with appropriate recovery machine and practices. NEVER VENT REFRIGERANTS! 3. Study the installation instructions supplied with each new condensing unit. All items are important, but careful attention should be given to the electrical and refrigerant line data tables. 4. Remove old condensing unit, retaining all of the original tubing and electrical wiring possible. 5. If the remaining portion of the liquid or vapor lines contains a line drier, remove and discard. 6. If this new unit replaces one with a burned compressor, careful attention must be given to cleaning the refrigerant lines, evaporator coil, and capillary tubes or expansion valve. a. Use a flushing agent such as ProFlush per manufacturer s directions. b. With a capillary tube system, a vigorous purging with dry nitrogen through the vapor line out the liquid line (backward purge will be helpful. c. If the evaporator coil is equipped with an expansion valve, either remove the internal cage assembly or the complete valve prior to purging with dry nitrogen. Also confirm that the expansion valve is recommended for use with R-22. If not, replace with a proper type valve. 7. Place the new condensing unit on a level concrete base or plastic condenser pad. 8. Install a new liquid line filter drier in the liquid line external to the condensing unit. If replacing a unit with a compressor burnout, also install a suction line filter drier in the suction line. This suction line filter will need to be removed after several days of use (typically 30 to 60 days). 9. Protect the service valves from excessive heat by wrapping with a wet cloth, and then braze the refrigerant lines to the condensing unit using silver solder while allowing dry nitrogen to flow through the lines. 10. Pressurize only tubing and evaporator coil with dry nitrogen. Use sufficient pressure to assure an accurate leak test. DO NOT exceed the test pressures marked on the unit rating plate. WARNING: D0 NOT USE OXYGEN OR COMPRESSED AIR to purge refrigerant lines, or pressurize the system, or to check for leak. Oxygen can react violently with refrigerants and oils which can cause an explosion resulting in severe personal injury or death. 11. Inspect all joints and check for leaks using a liquid detergent or other leak detection fluid. If leak is found, release pressure and repair. 12. Follow evacuation instructions at the end of this document to remove all nitrogen and noncondensables from the system.

13. Add refrigerant to the system by weighing in the charge per manufacturer s specifications, or by releasing the pre-charged refrigerant from the condenser into the lineset by opening the liquid line service valve. 14. Ensure both service valves are open before placing the condenser into service. 15. Consult this wiring schematic and follow the installation instructions for electrical wiring. a. CAUTION: If the refrigerant is metered to the cooling coil by an expansion valve (TXV), the recommended size start relay and start capacitor must be correctly installed in the appropriate circuit. (NOTE: Units incorporating scroll compressors do not require start components.) 16. Clean or replace return air filters. Start the indoor blower with fan switch to "on position and check air flow for correct CFM through the cooling coil. 17. Turn thermostat sub-base switch to the cooling position. Operate the thermostat to call for cooling. 18. With the new unit in operation, balance the refrigerant charge after 30 minutes of running time with the use of the SUPERHEAT CHARGING METHOD or the SUPERHEAT CHARGING METHOD" instructions included with the unit. 19. Replace service valve caps tightly to prevent leaks. 20. Clean work area, log refrigerant usage. 21. Return after a few hours of operation or in the following days to confirm proper operation and refrigerant charge. EVACUATION: An evacuation of any system component that has been exposed to atmosphere or has lost its charge is essential before charging with refrigerant R-22. CAUTION: Compressors should never be used to evacuate the air conditioning system. Placing a compressor into a vacuum can cause internal electrical arcing resulting in a damaged or failed compressor. Only use the compressor to reduce pressure to 0 PSIG (atmospheric pressure) 1. Since the condensing unit itself will not have to be evacuated unless it has lost all its charge, leave the vapor and liquid line shut-off valves closed. 2. Use a refrigeration type vacuum pump capable of evacuation to 30" of mercury. 3. Connect a gauge set to the vacuum pump and to both the vapor and liquid line service ports. 4. Evacuate the system until the pressure gauge should read at least 29.5 of mercury, and then continue to run the vacuum pump for 15 to 20 minutes. 5. Turn off the vacuum pump and record the gauge reading. Wait 15 to 20 minutes to confirm the pressure doesn t change over this period of time, which would indicate moisture in the refrigerant oil.

6. The tubing and cooling coil will now be free of non-condensables and the liquid and vapor shut-off valves can be opened. 7. Do not remove the manifold and gauge assembly, as it will be needed to balance the refrigerant charge. 8. WARNING: THE BRASS VALVE IS NOT A BACKSEATING VALVE. OPENING OR CLOSING VALVE DOES NOT CLOSE THE SERVICE PORT. EXTREME CAUTION MUST BE EXERCISED NOT TO FORCE VALVE STEM AGAINST THE RETAINING RING. IF THE VALVE STEM IS BACKED OUT PAST THE RETAINING RING, SYSTEM PRESSURE COULD FORCE THE VALVE STEM OUT OF THE VALVE BODY AND POSSIBLY CAUSE PERSONAL INJURY. IN THE EVENT THAT THE RETAINING RING IS MISSING, DO NOT ATTEMPT TO OPEN THE VALVE.

TAB 3

CONDENSING UNITS REPLACED Date Apartment Model Number of New Unit Serial Number of New Unit Reason Replaced Technician NOTE: All refrigerant must be recovered before condensing unit is replaced. Log all refrigerant recovered on recovered refrigerant form

TAB 4

COMPRESSORS REPLACED Date Apartment Model Number of New Unit Serial Number of New Unit Reason Replaced Technician NOTE: All refrigerant must be recovered before old compressor is removed. Log all refrigerant recovered on recovered refrigerant form

TAB 5

Appliance Disposal Form (for any equipment or appliance which contains or contained refrigerant) Property Name: Report Date: Completed by: Appliance Type (refrigerator, dehumidifier, air conditioning condenser, etc.) Model Number Serial Number Date of Disposal Reason for Disposal Refrigerant State (recovered, still in equipment, had leaked from appliance) If recovered, recovered by: Date: Disposition to Vendor Vendor or contractor listed below herby certifies that all regulated refrigerant(s) contained in the above listed appliance shall be reclaimed by an EPA licensed technician in accordance with current EPA guidelines. Vendor Legal Name: Address: City, State, Zip Phone: Vendor Signature Date

TAB 6

ACCIDENTAL OR UNINTENTIONAL VENTING REPORT Date: Service Request #: Property: Type of Refrigerant Vented: Approximately how many pounds were vented? Description of what happened: Why did it happen? What precautions have you taken to prevent this from happening again? Was anyone else aware of this situation? Yes No If so, whom? Did you inform the customer? Yes No Technician name:

TAB 7

New Refrigerant R - 22 Property Name: Cylinder Label: Cylinder Serial # Purchase Date: New Refrigerant Weight of cylinder and refrigerant (without the box) Weight of just the cylinder itself (this weight is marked on the cylinder as "TW" or Tear Weight" Weight of just the refrigerant (the sum of #1 minus #2 from above) Usage Date Apt and Work Order # Unit Serial Number Start Weight Page 1

New Refrigerant R - 22 Property Name: Cylinder Label: Cylinder Serial # Purchase Date: New Refrigerant Ending weight from prior sheet Usage Date Apt and Work Order # Unit Serial Number Start Weight Page

TAB 8

Recovered R - 22 Recovered R-22 (Clean) Property Name: Cylinder Label: Cylinder Serial # Purchase Date: Weight of the EMPTY cylinder (this weight is marked on the cylinder as "TW" or Tear Weight") Usage Date Apt and Work Order # Unit Serial Number Start Weight Page 1

Recovered R - 22 Recovered R-22 (Clean) Property Name: Cylinder Label: Cylinder Serial # Purchase Date: Ending weight from prior sheet Usage Date Apt and Work Order # Unit Serial Number Start Weight Page

TAB 9

Recovered R - 22 Recovered R-22 (Burn Out) Property Name: Cylinder Label: Cylinder Serial # Purchase Date: Weight of the EMPTY cylinder (this weight is marked on the cylinder as "TW" or Tear Weight") Usage Date Apt and Work Order # Unit Serial Number Start Weight Page 1

Recovered R - 22 Recovered R-22 (Burn Out) Property Name: Cylinder Label: Cylinder Serial # Purchase Date: Ending weight from prior sheet Usage Date Apt and Work Order # Unit Serial Number Start Weight Page

TAB 10

New Refrigerant R-410a Property Name: Cylinder Label: Cylinder Serial # Purchase Date: New Refrigerant Weight of cylinder and refrigerant (without the box) Weight of just the cylinder itself (this weight is marked on the cylinder as "TW" or Tear Weight" Weight of just the refrigerant (the sum of #1 minus #2 from above) Usage Date Apt and Work Order # Unit Serial Number Start Weight Page 1

New Refrigerant R-410a Property Name: Cylinder Label: Cylinder Serial # Purchase Date: New Refrigerant Ending weight from prior sheet Usage Date Apt and Work Order # Unit Serial Number Start Weight Page

TAB 11

Recovered R-410a Recovered R-410a (Clean) Property Name: Cylinder Label: Cylinder Serial # Purchase Date: Weight of the EMPTY cylinder (this weight is marked on the cylinder as "TW" or Tear Weight") Usage Date Apt and Work Order # Unit Serial Number Start Weight Page 1

Recovered R-410a Recovered R-410a (Clean) Property Name: Cylinder Label: Cylinder Serial # Purchase Date: Ending weight from prior sheet Usage Date Apt and Work Order # Unit Serial Number Start Weight Page

TAB 12

Recovered R-410a Recovered R-410a (Burn Out) Property Name: Cylinder Label: Cylinder Serial # Purchase Date: Weight of the EMPTY cylinder (this weight is marked on the cylinder as "TW" or Tear Weight") Usage Date Apt and Work Order # Unit Serial Number Start Weight Page 1

Recovered R-410a Recovered R-410a (Burn Out) Property Name: Cylinder Label: Cylinder Serial # Purchase Date: Ending weight from prior sheet Usage Date Apt and Work Order # Unit Serial Number Start Weight Page