ACUNITPU-M Air-Conditioning Machine, Package Unit - Monthly

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


This equipment is typically found in computer rooms, CAD rooms, laboratories,
etc.  It is identical in design and configuration to the Packaged Unit for
comfort cooling.  One difference is that it may use a glycol dry cooler during
favorable outside air conditions.

Special Instructions:

1.  Review manufacturer's instructions and the Standard Operating Procedure for
    "Controlling Hazardous Energy Sources."
2.  Deenergize, lock out, and tag electrical circuits.
3.  Perform any required dry cooler (PM GLYDRYCLR-A) or air cooled condenser
    (PM AIRCLCOND-A) maintenance simultaneously with this PM.
4.  Comply with the latest provisions of the Clean Air Act and Environmental
    Protection Agency (EPA) regulations as they apply to protection of
    stratospheric ozone.
5.  No intentional venting of refrigerants is permitted.  During the servicing,
    maintenance, and repair of refrigeration equipment, the refrigerant must be
6.  Whenever refrigerant is added or removed from equipment, record the
    quantities on the appropriate forms.
7.  Recover, recycle, or reclaim the refrigerant as appropriate.
8.  If disposal of the equipment item is required, follow regulations concerning
    removal of refrigerants and disposal of the equipment.
9.  If materials containing refrigerants are discarded, comply with EPA
    regulations as applicable.
10.  Refrigerant oils to be removed for disposal must be analyzed for hazardous
     waste and handled accordingly.
11.  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 wet/
        dry vacuum, (remove panels).
2. ___  Clean drain pan and note excessive corrosion, prepare and paint
        Consult the Material Safety Data Sheet (MSDS) to ensure that the paint
        lead level is 0.06% or less.
3. ___  Check for refrigerant leaks using a halogen detector or similar testing
        device.  If leaks are not able to be stopped or corrected, report leak
        status to supervisor.
4. ___  Check refrigerant levels and recharge if needed.  Consult the MSDS for
        disposal requirements.  Reclaimed and recycled CFCs are exempt from
        hazardous waste regulations (Consult 40 CFR Part 261).
5. ___  Check condition of cooling and reheat coils.  Use fin comb if needed to
        straighten fins.
6. ___  A dirty coil surface can be cleaned using a coil cleaner solution and
        warm water.
7. ___  Drain and clean humidifier drip pan, replace pan if applicable.  Remove
        scale and paint if necessary.
8. ___  Lubricate motor and fan bearings, if not sealed.  Check alignment of
        motor and fan.  Clean fan or blower.
9. ___  Check belt tension and condition.  Adjust or replace as required.
10.___  Replace prefilters if needed.
11.___  Replace final filters if needed.
12.___  Check compressor oil level if compressor has a sight glass.
13.     Run machine, check action of controls, relays, switches,
        etc. to see that:
    a.___  compressor(s) run at proper settings.
    b.___  reheat coils activate properly.
    c.___  humidistat activates humidifier.
    d.___  suction and discharge pressures are proper.
    e.___  discharge air temperature is set properly.
14.___  Check and adjust vibration eliminators.  Replace if required.
15.___  Check and tighten all electrical terminals, connections, and disconnect
16.___  Remove all trash or debris from work area.  Consult the MSDS for proper
        personal protective equipment (PPE).

Tools & 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 and materials, vacuum, fin comb, grease gun and oil, filters
    and prefilters, spare belts.
3.  Clamp meter (volt-ohm-amp meter).
4.  Paint and brushes as required.  Consult the MSDS to ensure that the paint
    lead level is 0.06% or less.
5.  Self sealing quick disconnect refrigerant hose fittings
6.  Refrigerant recovery/recycle unit
7.  EPA/DOT approved refrigerant storage tanks.
8.  Safety goggles.
9.  Gloves.
10. Electronic leak detector.

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