1 Building Maintenance Checklist HVAC

Building Maintenance Checklist  This building maintenance checklist can be used to develop a maintenance program tailored to the equipment in any specific building. Before developing the check list, a building equipment list should be compiled.  The manufacturer's suggested maintenance tasks and the frequency of such should be reviewed and incorporated into the preventive maintenance program.  Suggestions can for the most part, be done by the building staff. Some procedures will have to be undertaken by skilled tradesmen but it is left to the discretion of the building superintendent as to when they should be called in.  Systems:  Air systems.  Coils.  Chillers.  Cooling towers  Condensers  Boilers.  Controls.  Pumps.  Heat pumps.  Exhaust and transfer fans.  Humidifiers.  Fan coils and unit heaters.  Furnaces.  Packaged terminal air conditioners.  Rooftop units.  VAV and other boxes.  HVAC water distribution system.  Steam system.  Miscellaneous.  The frequency of tasks is as noted. Air system maintenance Chiller maintenance Condenser maintenance Boiler maintenance Control system maintenance Cooling tower maintenance Humidity control maintenance Coil maintenance Unit heater maintenance Exhaust fan maintenance Furnace maintenance Air conditioner maintenance

Heat pump maintenance Pump maintenance Rooftop unit maintenance Steam system maintenance Air terminal maintenance Water system maintenance Miscellaneous maintenance

Air System Maintenance

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 These air system maintenance suggestions can for the most part, be done by the building staff. Some HVAC maintenance procedure will have to be undertaken by skilled tradesmen but it is left to the discretion of the building superintendent as to when they should be called in. The frequency of tasks is as noted. Air Systems: Monthly Check for particulate accumulation on filters. Clean or replace if accumulation results in pressure drop or airflow outside of established operating limits.  Check air filter housing integrity. Correct as needed. Quarterly air system maintenance  Check UV lamp. Clean or replace as needed to assure proper operation. Semi annually HVAC maintenance procedure  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 variable frequency drive for proper operation. Correct as needed.  Check for proper operation of cooling or heating coil. Clean or replace as required. Annual air system maintenance  Check control box for dirt, debris and loose terminations. Tighten as needed.  Check motor contactor for pitting or other signs of damage. Repair or replace as needed.  Check fan blades. Clean, repair or replace as needed to ensure proper operation.  Check refrigerant system pressure and temperatures. If outside of recommended levels, find cause, repair and adjust refrigerant to achieve normal operating levels.  Check for fouling, corrosion or degradation. Clean or repair as needed.  Check drive alignment, wear seating and operation. Repair or replace as needed.

 Check integrity of all panels on equipment. Replace fasteners as needed to ensure proper integrity and fit and finish of equipment.  Lubricate field serviceable bearings.  Check drain pan, drain line and coil for biological growth. Clean as needed.  Check coil fins for evidence of build up or fouling. Restore if possible. Replace coil if necessary to return to proper functioning.  Inspect for evidence of moisture carryover beyond the drain pan from cooling coils. Make corrections or repairs as necessary.  Check for proper damper operation. Repair, replace or adjust as necessary.  Visually inspect areas of moisture accumulation for biological growth. If present, clean or disinfect as necessary.  Check condensate pump. Clean or replace as needed.  Visually inspect exposed duct work and external piping for insulation and vapor barrier for integrity. Correct as needed.  Visually inspect internally lined duct work until the first turn or up to 20 ft into the supply plenum from air system for integrity, and if soiled or degraded, correct.

Chiller Maintenance  These chiller maintenance procedures for cooling equipment can for the most part, be done by the building staff. Some procedures will have to be undertaken by skilled tradesmen but it is left to the discretion of the building superintendent as to when they should be called in. Absorption chillers: Weekly  Check for presence of non condensibles. Take necessary steps to eliminate non condensibles in system. Monthly  Visually inspect fuel filter. Clean, repair or replace as needed to ensure proper operation.  Perform chemical testing of system water, if an open system. Treat as needed to ensure proper water chemistry. Quarterly hvac maintenance facts  Perform chemical testing of system water, if a closed system.Treat as needed to ensure property water chemistry.  Check fuel pump for proper operation. Repair or replace as needed to ensure proper operation.  Inspect gearbox for excessive wear. Repair or replace as needed. Semi-annual hvac maintenance facts

 Check steam system traps, pumps and controls. Clean or replace as necessary to ensure proper operation.  Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.  Check variable frequency drive for proper operation. Correct as needed. Annual chiller maintenance  Check control box for dirt, debris and loose terminations. Clean and tighten as needed.  Check motor contactor for pitting or other signs of damage. Repair or replace as needed.  Check drive alignment, wear, seating and operation. Repair and replace as needed.  Check for evidence of build-up or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.  Check for proper fluid flow. Clean and adjust and repair as needed to restore proper flow.  Check inhibitor and internal fluid chemistry. Correct inhibitor and internal fluid chemistry if outside of established operating ranges. Air Cooled Chillers: Monthly chiller maintenance  Perform chemical testing of water. Treat as needed to ensure proper water chemistry for open systems. Quarterly hvac maintenance facts  Perform chemical testing of water. Treat as needed to ensure proper water chemistry for closed systems.  Inspect gearbox for excessive wear. Repair or replace as necessary. Semi-annual chiller maintenance  Check control system and devices for evidence of improper operation. repair, adjust or replace components to ensure proper operation.  Check fan belt tension. Check for belt wear and proper alignment. replace if necessary to ensure proper operation.  Check variable frequency drive for proper operation. Correct as needed. Annual chiller maintenance  Check control box for dirt, debris and loose terminations. Clean and tighten as needed.  Check motor contactor for pitting or other signs of damage. Repair or replace as needed.  Check fan blades. Clean, repair or replace as needed to ensure proper operation.  Check refrigerant system pressures and 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.  Lubricate field serviceable bearings.  Check for evidence of build-up or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.  Check for proper fluid flow. Clean, adjust and repair as needed to restore proper flow.  Inspect air-cooled condenser surfaces. repair or clean as needed.  Check low ambient head pressure control sequence for proper operation. Repair or replace components or modify software/algorithm to ensure proper operation.

 Check compressor oil level and or pressure on refrigerant systems having oil level and or pressure measurement means. Repair, replace or adjust as needed to ensure proper control. Water Cooled Chillers Monthly  Perform chemical testing of system water for open system. Treat as needed to ensure proper water chemistry. Quarterly  Perform chemical testing of system water for closed system.Treat as needed to ensure proper water chemistry.  Inspect gearbox for excessive wear. repair or replace as needed.  Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.  Check control box for dirt, debris and loose terminations. Clean and tighten as needed.  Check motor contactor for pitting or other signs of damage. Repair or replace as needed..  Check refrigerant system pressures and temperatures. If outside of recommended levels, find cause, repair and adjust refrigerant to achieve optimal operating levels.  Check drive alignment, wear, seating and operation. repair and replace as needed.  Check for evidence of build-up or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.  Check for proper fluid flow. Clean, adjus and repair as needed to restore proper flow.  Check compressor oil level and or pressure on refrigerant systems having oil level and or pressure measurement means. Repair, replace or adjust as needed to ensure proper control

Condenser Maintenance  Condenser maintenance information. Semi-annually  Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.  Check fan belt tension. Check for belt wear and proper alignment. Replace if necessary to ensure proper operation. Annually  Check control box for dirt, debris and or loose terminations. Clean and tighten as needed.  Check motor contactor for pitting or other signs of damage. Repair or replace as needed.  Check fan blades for balance and particulate buildup. 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. For direct coupled fan/motor assemblies, check bearings and lubricate field serviceable or replace motor if needed.  Inspect air cooled condenser surfaces. Repair or clean as needed.

 Check low ambient head pressure control sequence for proper operation. Repair or replace components or modify software to ensure proper operation.  Check refrigerant oil levels for refrigerant systems with oil pressure/level controls. Repair, replace or adjust as needed to ensure proper operation.

Boiler Maintenance  These boiler maintenance suggestions can for the most part, be done by the building staff. Some procedures will have to be undertaken by skilled tradesmen but it is left to the discretion of the building superintendent as to when they should be called in. The frequency of tasks is as noted. Boilers Monthly  Visually inspect fuel filter. Clean, repair or replace as needed to ensure proper operation.  Perform chemical testing of system water (open system). Treat as needed to ensure proper water chemistry. Quarterly maintenance  Perform chemical testing of system water (closed system).Treat as needed to ensure proper water chemistry.  Check fuel pump for proper operation. Repair or replace as needed to ensure proper operation.  Inspect blow down or drain valve. Clear all debris to ensure proper operation. Repair or replace if needed. Semi annual  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, adjust or replace components to ensure proper operation. Annual maintenance  Check control box for dirt, debris and or loose terminations. Clean and tighten as needed.  Check motor contactor for pitting or signs of damage. Repair or replace as needed.  Check for fouling, corrosion or degradation. Clean or repair as needed.  Check for evidence of build up or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.  Check for damper operation. Repair, replace or adjust as needed.  Check combustion chamber burner and flue for deterioration, moisture problems, condensation and combustion products. Clean, test and adjust combustion process for proper operation.

Control System Maintenance

 These control system maintenance suggestions are for building automation systems, pneumatic, electric and electronic. Monthly  Check compressed air system (compressor, dryer, receiver, blow down valve, pressure reducing valve and oil filter) for proper operation. Repair or replace as needed to ensure proper operation.  Check for proper air pressure. Repair or replace pneumatic system components as needed. Semi-annually  Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.  Inspect, clean and calibrate pneumatic thermostats, controls and controlled devices. Annually      

Check pneumatic and electric actuator operation. Clean and lubricate as required. Check for proper damper operation. Repair or replace as needed. Check temperature transmitters for accuracy. Check pneumatic lines for blockage. Clean as required. Check to see that that back up system software is current. Check building automation system backup and verify operation.

Cooling Tower Maintenance  As presented these are cooling tower maintenance suggestions. Monthly  Perform water treatment analysis of system water for an open system. Treat as needed to ensure proper water chemistry. Quarterly  Perform water treatment analysis of system water for a closed system. Treat as needed to ensure proper water chemistry.  Check water system UV lamp. Clean or replace as needed to ensure operation.  Inspect blow down or drain valve. Clear all debris to ensure proper operation. Repair or replace if necessary.  Check chemical injector device. clean as needed.  Check cooling tower fan drive system for excessive wear, proper bearing seating and proper alignment. Adjust, repair or replace as necessary to ensure proper operation.  Inspect sump and strainer. Clean as needed. Semi-annually  Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.  Check variable frequency drive for proper operation. Correct as needed.  Visually inspect pumps and associated electrical components. Repair or replace as needed to ensure proper operation. Annually

 Check control box for dirt, debris and or loose terminations. Clean and tighten as needed.< li>Check motor contactor for pitting or other signs of damage. Repair or replace as needed.  Check fan blades. Clean, repair or replace as needed to ensure proper operation.  Check for fouling, corrosion or degradation. Clean or repair as needed.  Lubricate field serviceable bearings.  Check for evidence of build up or fouling on wet decks, fill and exterior louvers. Clean as needed to ensure proper operation.  Check for proper damper operation. Repair, replace or adjust as needed.  Check for proper fluid flow. Clean, adjust and repair as necessary to restore proper flow.  Check for dirt and debris. Clean as needed.  Check cooling tower motor and pump for proper operation. Repair or replace as needed to ensure proper operation.  Check nozzles. Clean as needed.

Humidity Control Maintenance  Suggested humidity control maintenance procedures.

Quarterly  Check UV lamp. Clean or replace as needed to ensure proper operation.  Measure relative humidity and repair, clean or adjust system as necessary to ensure intended operation.

Semi-annually  Check steam traps, pumps and controls. Clean or replace as needed to ensure proper operation.

Annually  Check for fouling, corrosion or degradation. Clean or repair as needed to ensure proper operation.  Check for evidence of build up or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.  Check strainers clean as needed.

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

Coil Maintenance

 This suggested maintenance is for chilled water cooling coils, direct expansion and heating coils.

Semi-annually  Check P trap. Prime as needed to ensure proper operation.  Check for proper operation of cooling or heating coil. Clean, restore or replace as necessary.

Annually  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 integrity of all panels on equipment. Replace fasteners as needed to ensure proper integrity and fit and finish of equipment.  Check drain pan, drain line and coil for biological growth. Clean as needed.  Check coil fins. Restore if possible. Replace coil if necessary.  For cooling coils inspect for evidence of moisture carryover beyond the drain pan from the coil. Make corrections or repairs to eliminate the condition.  Visually inspect areas of moisture accumulation for biological growth. If present, clean or disinfect as needed.  Check condensate pump. Clean or replace as needed.

Unit Heater Maintenance  This information is provided to suggest 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 dropor 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.

Exhaust Fan Maintenance  Exhaust fan maintenance suggestions

Quarterly  Check cleanliness of the fan. Clean as required.  Check switch operation. Repair as required.  Check fan belt tension. Check for belt wear and alignment. Replace if necessary to ensure proper operation.  Check drive alignment, wear, bearing and coupling seating and operation. Repair and replace as needed.  Check fan blades. Clean, repair or replace as needed to ensure proper operation.  If field serviceable lubricate bearings.  Measure motor amperage using a C clamp amprobe. Increased current flow may indicate that bearings are seizing.  If the exhaust fan is automatically controlled check thermostat operation.  If the exhaust fan is interlocked with the operation of other fan systems check sequence of control.

Furnace Maintenance  This information is offered to suggest procedures for furnace maintenance.

Monthly  Check air filter and housing integrity. Correct as needed.  Check for particulate accumulation on filters. Clean or replace if accumulation results in pressure drop or airflow outside of established operating limits.  Visually inspect fuel filter. Clean, repair or replace as needed to ensure proper operation.

Semi-annually  Check fuel pump for proper operation. Repair or replace as needed.  Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.  Check fan belt tension. Check for belt wear and proper alignment. Replace if necessary.

Annually  Check control box for dirt, debris and or loose terminations. Clean and tighten as needed.  Check fan blades. Clean, repair or replace to ensure proper operation.  Check drive alignment, wear, seating and operation. Repair and replace as needed.

 Check integrity of all panels on equipment. Replace fasteners as needed to ensure proper integrity and fit and finish of equipment.  Lubricate field serviceable bearings.  Check for proper damper operation. Repair, replace or adjust as needed.  Check combustion chamber, burner and flue for deterioration, moisture problems, condensation and combustion products. Clean, test and adjust combustion process for proper operation.  Check heat exchanger. Clean as necessary to remove scale and sediment. Check for leaks.

Air Conditioner Maintenance  These suggested air conditioner maintenance procedures are for single room air conditioners. Monthly  Check for particulate accumulation on filters. Clean or replace if accumulation results in pressure drop or airflow outside of established operating limits.  Check air filter and housing integrity. Correct as needed. Quarterly  Check UV lamp. Clean or replace as needed. Semi-annually  Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.  Check condensate drain path and remove debris as needed to assure it is free flowing.  Check for proper operation of cooling coil. Clean, restore or replace as required.  Check motor contactor for pitting or other signs of damage. Repair or replace as needed.  Check fan blades. Clean, repair or replace as needed.  Check refrigerant system temperatures. If outside recommended levels, find cause, repair and adjust refrigerant to achieve optimal operating levels.  Check integrity of all panels on equipment. Replace fasteners as needed to ensure proper integrity and fit finish of equipment.  Check drain pan, drain line and coil for biological growth. Clean as needed.  Check evaporator coil fins. Restore if possible. Replace coil if necessary to return to proper functioning.  Inspect for evidence of moisture carrtover beyond the drain pan from cooling coils. Make corrections or repairs as necessary.  Inspect air cooled condenser surfaces. Repair or clean as needed.  Visually inspect areas of moisture accumulation for biological growth. If present, clean or disinfect as needed.

Heat Pump Maintenance  These suggested heat pump maintenance procedures are for an air source heat pump as well as water source heat pump.  Change filter quarterly.  Check air filter housing integrity. Correct as needed.  Check UV lamp if it exists for air source heat pumps.. Clean or replace as required.  Check control system and devices for proper operation. Repair, adjust or replace components to ensure operation.  Check for proper operation of evaporative and condenser coils.  Check fan belt tension. Check for belt wear and proper alignment. Replace as required.  Check P trap. Prime as needed.  Check fan blades. Clean, repair as needed.  Check integrity of all panels on equipment. Replace fasteners as needed to ensure integrity and finish of equipment.  Visually inspect areas of moisture accumulation for biological growth. If present, clean or disinfect as required.  Check drive alignment, wear, seating and operation. Repair or replace as needed.  Lubricate field serviceable bearings.  Check motor contactor for pitting or other signs of damage. Repair or replace as needed.  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 reoair as needed.  Check for evidence of buildup or fouling on heat exchange surfaces. Clean as needed.  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 coils. Make corrections or repairs as required.  Check condensate pump. Clean or replace.  Check refrigerant oil levels for refrigerant systems with oil pressure and level controls. Repair, replace and adjust as necessary.

Pump Maintenance  These suggested pump maintenance procedures apply to both hot water circulating pumps as well as chilled water circulating pumps. Quarterly  Visually inspect pump.  Clean pump strainer. Semi-annually  Check pump control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.  Check variable frequency dive for proper operation. Correct as needed.  Visually inspect pumps and associated electrical components. Repair or replace as needed to ensure proper operation.

Annual hot water circulating pumps maintenance  Check control box for dirt, debris and o loose terminations. Clean and tighten as needed.  Check motor contactor for pitting or other signs of damage. Repair or replace as needed.  Check drive alignment, wear, bearing and coupling seating and operation. Repair and replace as needed.  Check for proper flow. Clean, adjust and repair as needed.  Lubricate field serviceable bearings

Rooftop Unit Maintenance  These rooftop unit maintenance suggestions may be considered for many different types of rooftop air conditioning units.  Check for accumulation on filters. Clean or replace as required.  Check air filter housing integrity.  Check UV lamp. Clean or replace as required.  Check control system and devices for proper operation. Repair or replace as required.  Check P trap. Prime as needed for the rooftop air conditioning unit.  Check operation of variable speed frquency drive for operation.  Check fan belt tension. Adjust as necessary, replace if required.  Check operation of cooling and or heating coil. Adjsut fins as required.  Check control box for dirt, debris and or loose terminations. Clean and tighten as required.  Check motor contactor for pitting or other signs of damage. Repair or replace as required.  Check refrigerant systems pressures or temperatures. Adjsut or repair as required.  Check drive alignment, wear, seating and operation. Repair or replace as required.  Check integrity of all panels on equipment. Replace fasteners as needed to ensure proper integrity and fit of equipment.  Lubricate field serviceable bearings.  Check for evidence of buildup or fouling on heat exchange surfaces. Clean as required.  Check drain pan, drain line and coil for biological growth.Clean as needed.  Check evaporator coil fins. Restore if required.  Inspect for evidence of moisture carryover beyond the drain pan from cooling coil. Repair as required.  Check for proper damper operation. Repair if required.  Inspect air cooled condenser surfaces. Clean as required.  Check low ambient head pressure control sequence for proper operation. Repair or replace components as required.  Check for excessive scale or debris on condenser surfaces. Clean as required.  Check combustion chamber, burner and flue for deterioration, leaks, moisture problems, condensation and combustion products. Clean, test and adjust combustion process for proper operation.  Visually inspect areas of moisture accumulation for biological growth. If present, clean or disinfect as needed.  Check condensate pump. Clean or repair as required.

Water System Maintenance Procedures

 Suggested water system maintenance procedures  Perform chemical testing of system water. Treat as required.  Check chemical injector device. Clean as needed.  Visually inspect pumps and associated electrical components. Repair or replace as needed to ensure proper operation.  Check for evidence of buildup or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.  Check for proper flow. Clean, adjust and repair as needed.  Check strainers. Clean as needed.  Visually inspect external piping insulation and vapor barrier for integrity. Correct as needed.  Check freeze stats, relief valves, flow and float switches, low water cutoffs and other safety devices for proper operation and repair or replace as required.

Miscellaneous Facility HVAC Maintenance These miscellaneous facility HVAC maintenance suggestions can for the most part, be done by the building staff. Some procedures will have to be undertaken by skilled tradesmen but it is left to the discretion of the building superintendent as to when they should be called in. The frequency of tasks is as noted. Legend •

Daily D

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Weekly W

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Monthly M

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According to manufacturer AM

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When necessary WN Air Compressors maintenance:

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Change compressor crankcase oil. AM

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Clean fins on heads, after cooler, cylinder. M

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Clean intake air filter. W

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Check drive belt. D

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Check cooling water flow. D

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Check oil level. D

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Blow down compressor pressure tank. D Domestic Hot Water Heater Facility HVAC maintenance:

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Check for leaks. D

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Check that barometric flue damper is functional. D

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Check electrical connections. D

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Test low water cutoff. W

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Check aquastat setpoint and water temp. D

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Check pressure relief valve. W

Emergency Generator maintenance: •

Check crankcase oil and filter. W

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Check governor. W

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Check spark plugs. W

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Lubricate. W

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Check air cleaner and breather. W

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Check auto start up. W

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Check and note operating conditions no load. W

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Half hour duration.

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Check and note operating conditions load M

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One hour duration.

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Check fan belt. W

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Check radiator cooling level. W

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Check and clean radiator intake screen. W

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Check battery cables and connections. W

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Check battery acid level. W

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Check gas piping, manifold and flexible W

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connectors.

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Check diesel fuel feed system. W Electric Motors Facility HVAC maintenance:

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Record amperage and voltage. M

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Check terminals for corrosion or loose leads. M

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Inspect commutator and clean if necessary. M

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Inspect brushes for wear and replace if M

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necessary.

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Blow out motor windings with compressed air. M

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Have motor windings megger tested to check AM

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for insulation breakdown. Expansion Tanks maintenance:

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Check tank and system for leaks. D

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Check expansion tank gauge level. D

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Check makeup system operation. D

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Check tank for corrosion. D

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Clean gauge glass. D Grease Interceptors maintenance:

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Inspect depth of grease. W

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Add chemicals to break down grease. AM Incinerator maintenance:

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Lubricate motors. AM

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Check combustion chamber lining. M

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Clean out settling chamber. WN Plumbing maintenance:

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Check that fixtures and trim are mounted W

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securely.

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Check flush valve adjustment. W

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Ensure floor drain traps are water filled. W

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Check washers, O rings and stem packing for W

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leaks.

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Clean traps and strainers. WN