Unit Heater Maintenance Suggestions, How to maintain a unit heater

Unit heater maintenance suggestions speak to how to maintain a unit heater and unit heater maintenance procedures for unit heaters and fan coils.

Quarterly

  • Check for particulate accumulation on filters. Clean or replace if accumulation results in pressure drop or air flow outside of established operating limits.
  • Check UV lamp. Clean or replace as needed to ensure proper operation.
  • Check air filter and housing integrity and correct as needed at time filters are replaced or serviced.
  • Semi-annually

  • Check steam traps, pumps and controls. Clean or replace as needed to ensure proper operation.

  • Check control system and devices for evidence of improper operation. Repair, or adjust or replace components to ensure proper operation.

  • Check P trap. Prime as needed to ensure proper operation.

  • Check fan belt tension. Check for belt wear and proper alignment. Replace if necessary to ensure proper operation.

  • Check for proper operation of cooling or heating coil. Clean, restore or replace as required.

    Annually

  • Check control box for dirt, debris and or loose terminations. Clean and tighten as needed.

  • Check fan blades. Clean, repair or replace as needed to ensure proper operation.

  • Check refrigerant system pressures or temperatures. If outside of recommended levels, find cause, repair and adjust refrigerant to achieve optimal operating levels.

  • Check for fouling, corrosion or degradation. Clean or repair as needed.

  • Check drive alignment, wear, seating and operation. Repair and replace as needed.

  • Check integrity of all panels on equipment. Replace fasteners as as needed to ensure proper integrity and fit finish of equipment.

  • Lubricate field serviceable bearings.

  • Check drain pan, drain line and coil for biological growth. Clean as needed.

  • Check coil fins. Restore if possible. Replace coil if necessary.

  • Inspect for evidence of moisture carryover beyond the drain pan from cooling coil. Make corrections or repairs as necessary.

  • Check for damper operation. Repair, replace or adjust as needed.

  • Visually inspect areas of moisture accumulation for biological growth. If present, clean or disinfect as needed.

  • Check condensate pump. Clean or replace.

    Building Maintenance Checklist

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