Specifications include, but are not limited to: 1. The Contractor shall provide annual fall preventative maintenance of the unit heaters (UH) and cabinet unit heaters (CUH) as described herein. The maintenance inspection shall include the following services: • Inspect grilles, coils, fan, blower wheels, etc. Clean as needed. • Lubricate fan and motor bearings as required Check motor volts/amps. • Check belts and sheaves where applicable. • Check/clean drains, pans, condenser pumps where applicable. • Check and tighten all electrical connections. • Check unit-operating conditions. • Check/inspect heat exchanger for overall condition and safe functionality. • Replace condensate acid neutralizing media 1x/year during Fall PM. • Check gas valve and associated controls where applicable. • Check and tighten electric heater connections Check amps/volts where applicable. • Check filters on CUH units, replace 1x/year during Fall PM. • Check any outdoor air or mixing dampers for proper operations where applicable. • Check fan assemblies. • Check burner interlock controls. • Check and tighten all mounting hardware. • Check overall operation. • Check operating controls. • Check for overall safe and proper operation of equipment. • Report any deficiencies found to on-site personnel. 2. The Contractor shall provide semi-annual preventative maintenance of the air handler systems to include air handlers (AHU’s), energy recovery ventilators/Units (ERV’s/ERU’s), and Fan Coil Units (FCU’s/FC’s) Inspections shall include the following: • Check bearings for wear. • Check fans and fan shafts for proper balance. • Check all belts for proper tension, alignment and wear. • Check all air handling systems for sequence of operations and internal controls. • Inspect all heating and cooling coils. Clean as needed. • Inspect all condensation pans and check to ensure that pans are pitched correctly for proper drainage. Clean as needed. • Biocide tablets will be used in the condensation pans so that the pans are clean and in good working order. Where applicable. • Check all sheaves for proper alignment. • Check and tighten all electrical terminations. • Check contacts for wear. • Check and record motor current against nameplate. • Check all safety controls. • Lubricate motors/bearings where applicable. • Check fan wheels - clean as required. • Check fan scrolls - clean as required. • Check fan bearing supports. • Check motor supports. • Check damper operation. • Check damper linkages. • Inspect and clean/flush condensate pumps where applicable. • Inspect energy recovery wheels and/or desiccant media cores Where Applicable. Report any deficiencies to agency. • Replace contractor provided air filters 2x/year during scheduled PMs. • Check humidifier strainer where applicable. • Check and clean humidifier float assembly where applicable. • Check humidifier level controls where applicable. • Check and clean humidifier drain/pan where applicable. • Check humidifier heating elements where applicable. • Check all humidifier controls where applicable. • Check and clean outside air intakes. • Check for any unusual noises or vibrations. • Check structural integrity of the unit. • Replace contractor provided belts 1x/year during the Fall PM.
