ACUNITSS-A Air Conditioning Machine, Split System - Annual

                                            Under 10 Tons Man Hours 3
                                             Over 10 Tons Man Hours 6

This applies to those packaged type air conditioning machines that are
equipped with chilled water coils or direct expansion coils on split systems.
The other portion of the split system, i.e., a refrigeration condensing unit (PM
CONDSRUR-A), or a packaged type chilled water unit (PM CHILLRWTRCCC-Q), is to be
serviced in conjunction with this PM activity.

Special Instructions:

1.  Review manufacturer's instructions.
2.  A/C machine maintenance should be scheduled to coincide with condensing unit
    or package chiller maintenance as noted above.
3.  Comply with the latest provisions of the Clean Air Act and Environmental
    Protection Agency (EPA) regulations as they apply to protection of
    stratospheric ozone.
4.  No intentional venting of refrigerants is permitted.  During the servicing,
    maintenance, and repair of refrigeration equipment, the refrigerant must be
5.  Whenever refrigerant is added or removed from equipment, record the
    quantities on the appropriate forms.
6.  Recover, recycle, or reclaim the refrigerant as appropriate.
7.  If disposal of the equipment item is required, follow regulations concerning
    removal of refrigerants and disposal.
8.  If materials containing refrigerants are discarded, comply with EPA
    regulations as applicable.
9.  Refrigerant oils to be removed for disposal must be analyzed for hazardous
    waste and handled accordingly.
10.  Closely follow all safety procedures described in the
     Material Safety Data Sheet (MSDS) for the refrigerant and all labels on
     refrigerant containers.

Items to Check & Initial Completion:

1. ___  Thoroughly inspect and clean interior and exterior of machine with
        vacuum (remove panels).
2. ___  Clean drain pan and note excessive corrosion.  Treat rusted areas with
        rust inhibitor.  Ensure that the rust inhibitor chemical does not add
        volatile organic compounds or contaminants to the drain pan.  If
        possible, rinse well after application or choose a less hazardous
        material.  Consult the chemicals Material Safety Data Sheet (MSDS) for
        this information.

3.  Chilled water units:
   ___  Check for chilled water leaks on all lines, valves, strainers, coils,
        etc.  If leaks are not able to be stopped or corrected, report leak
        status to supervisor.
   ___  Clean strainer on chilled water unit.
        Direct expansion units:
   ___  Check for refrigeration leaks on all lines, valves, fittings, coils,
        etc., using a halogen leak detector or similar testing device.  If
        leaks are not able to be stopped or corrected, report leak status to
4. ___  Check condition of cooling and reheat coils.  Use fin comb if need to
        straighten fins.
5. ___  Clean coils.  Use detergent solution and warm water if coil is heavily
6. ___  Drain and clean humidifier pan or pad, whichever applies.  Replace pad if
        required.  Remove corrosion as needed.
7. ___  Clean and lubricate motor and squirrel cage fan(s).  Check alignment of
        motor and fan.  Check bearings for excessive wear.
8. ___  Check belt tension and condition.  Adjust or replace as required.
9. ___  Replace pre-filters if needed.
10.___  Replace final filter if needed.
11.      Run machine, check action of controls, relays, switches, etc., to see
    a.  Chilled water units:
        (1).___  Chilled water valve(s) are operating properly.
        (2).___  Reheat coils activate properly.
        (3).___  Humidistat activates humidifier.
        (4).___  Valves regulating water pressure are proper on cooling.
        (5).___  discharge air temperature is set properly.
        (6).___  Check and record chilled water inlet and outlet
    b.  Direct expansion units:
        (1).___  Humidistat activates humidifier.
        (2).___  Reheat coils activate properly.
        (3).___  Discharge air temperature is set properly.
12.___  Check and adjust vibration eliminator mountings if equipped.  Repair or
        replace if required.

Tools and Materials:

1.  Standard Tool kit.
    Plus  Refrigeration - gauges
          Leak detector-electronic or halogen
          Pocket thermometer
          Clamp on meter (volt - ohm - amp meter)
          Flaring tool
          Tubing cutters
          Packing kit and packing
          Crescent wrenches to 14"
2.  Cleaning tools, grease gun, oil and materials.  Consult the MSDS for
    hazardous ingredients and proper personal protective equipment (PPE).
3.  Vacuum
4.  Fin comb
5.  Filters
6.  Spare V-belts
7.  Self-sealing quick disconnect refrigerant hose fittings, if applicable.
8.  Refrigerant recovery/recycling unit, if applicable.
9.  EPA/DOT approved refrigerant storage tanks.
10. Safety goggles
11. Gloves
13. Approved refrigerant.
14. Electronic leak detector.

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