STANDARD OPERATING PROCEDURE – HVAC VRV INDOOR SYSTEM PPM ACTIVITY

  

OBJECTIVE:

To establish a procedure for VRV indoor system PPM activity.

 

POLICY:

Proactively identify, correct, and report defects and damages to reduce down time and risk of failure of the equipment’s.

 

RESPONSIBILITY:

 

Shift Engineer

 

PROCEDURE:

 

·        Make sure all PPEs are available before activity.

·        Only trained personnel are authorized for the activity.

·        Use loto device to isolate energy source to the device before activity.

·        Check and clean condenser coils.

·        Check and clean drain pan.

·        Check and clean condensate drain to prevent water overflow.

·        Leak test all coils and connections for Freon leaks.

·        Check capacitors for hazardous leaks.

·        Monitor Freon site glass.

·        Inspect for interior cabinet contamination and mold growth.

·        Clean and sanitize evaporator coil [in place] for mold and mildew prevention. [Removal for cleaning additional charge.]

·        Check and clean air filters.

·        Check all supply vents for proper air circulation.

·        Test heating elements for trouble-free operation.

·        Check crank case heater.

·        Check safety controls.

·        Check all pumps and auxiliary equipment.

·        Check reversing valve for proper operation.

·        Lubricate motor and blower bearings.

·        Note all corrosion spots and apply protective film, on equipment as needed.

·        Inspect, clean and spray controls and switches.

·        Check thermostat calibration & battery life.

·        Check all electrical components for proper operation.

·        Check all wire connections and replace, as needed.

·        Check all relays for trouble-free operation.

·        Inspect and clean contactor points.

·        Test compressor’s running amperage.

·        Document motor amperages to compare to future visits.

·        Check refrigerant flow control device.

·        Test and monitor refrigerant pressures.

·        Check operating temperatures and temperature drop across coils.

·        System efficiency evaluation.

·        Provide a detailed report upon completion of a maintenance visit. At any job motto should be safety first.

·        In case of any major problem, inform the Facility Manager immediately.

 

 

 

REVISION GUIDE:

Any change in the systems will need a change in the SOP.