Basically, executing a preventive maintenance on a centralized atmosphere conditioning procedure in buildings isn't a do-it-yourself task. This demands knowledge and also working hard for many of us on the person of the maintenance department. Breakdowns would surely suggest soreness and most importantly guilt the item towards preservation people today idea. To avoid this, a new schematic surgery needs to be supplied along with step-by-step task needs to be adopted simply by most customers with your maintenance group.
With this, I possess laid lower step-by-steps system with doing upkeep process with regard to centralized cooling systems. More critical will be the regularity involving performing this particular process which can be quite very much crucial for many centralized cooling systems. This guidebook will assist supervisors throughout drafting some sort of protection process or simply information specialists undertaking the particular job.
Note that each maintenance task is arranged using a step-by-step treatment if you want to the viewer in order to easily stick to each task.
1.0 Maintenance connected with Chiller Units
1.1. Swabbing associated with Condenser Shell plus Tubes involving Chillers units.
1.1.1 Close the actual remoteness valve in the refrigerator condensing product as well as deplete the particular normal water within the condensing model through the depleation dock as well as blow down valve.
1.1.2 Chemical de-scaler will be circulated towards the condenser tubes as well as system using a chemical knock out in the plug-ins given in this reason inside wine chiller unit. In purchase that will dissolved, lossen in addition to removed hardened residue along with scales ensnared on inside the tubes, it is vital that this inorganic de-scaler should certainly be circulated on the condensing model with regard to at the least three several hours preceding the specific draining.
1.1.3 Drain the chemical de-scaler along with get rid of your shell with each conclusion with the condensing unit.
1.1.4 Work some sort of round nylon or brass bristled airbrush (attached to some rod) around as well as outside of each end associated with this condenser mineral water tubes to loosen the sludge).
1.1.5 Thoroughly eliminate the condenser mineral water tubes with clean water and installation the condensing device spend from each end.
1.1.6 Contaminated water and also squander inorganic because of this process should certainly end up being included and also disposed properly.
1.1.7 Implementation of this particular procedure will be based on your diagnosis and recorded running ranges of one's core cooling unit.
1.2 Swabbing involving Evaporator Shell plus Tubes of Chiller Units.
1.2.1 Use the particular exact same maintaining method reviewed around process 1.1 above. Schedule and rate connected with implementation of this method will probably be influenced by the particular evaluation and recorded working guidelines of the main cooling unit.
1.3 Replacement with Gas Pump plus Main Oil Filter associated with Trane Chiller
1.3.1 Stop that Chiller unit and near the manual assistance valves to be found in advance of along with after the filters.
1.3.2 Relieve your strain through the hydraulic collection in the Schrader control device situated somewhere between that shot valves and the acrylic filter.
1.3.3 Use strap wrench to help break free the actual nut that secures that oil filter aspect towards filter manifold.
1.3.4 Turn the actual nut clockwise right up until that filtration system aspect detaches on the manifold.
1.3.5 Replace this filtration aspect as well as re-install the revolutionary filter element towards the filter manifold.
1.3.6 Connect manifold appraise for the essential oil loading control device in addition to void this filter feature and a lot more to be able to -30 throughout Hg.
1.3.7 Charge the particular oil series returning along with as much oil removed.
1.3.8 Open the remoteness valves for the petrol provide system.
1.3.9 Waste and infected acrylic using this treatment will be comprised in addition to disposed properly.
1.3.10 This method will probably be executed for you to petrol push filter and main oil filter of Trane wine chiller items annually.
1.4 Inspection / Cleaning of Chiller Casing
1.4.1 Ocular inspection connected with wine chiller casing will likely to be done on just about all Chiller units. Any signal connected with petrol / water leaks and also destroyed element should be noted and given important corrective action.
1.4.2 This system will likely to be done once a month on many Chiller units.
1.5 Chiller Oil Analysis
1.5.1 Oil Analysis will probably be conducted that will just about all Trane chillers every year with a experienced Service Engineer / Technician.
1.6 Oil Replacement Procedure intended for Trane Chiller units
1.6.1 Remove the actual refrigerant in the chiller unit and also contain the particular refrigerant that will a strong empty storage container aquarium and by means of a vacuum cleaner pump right up until the refrigerant difficulty drops that will 10 psig. Then stop the wine chiller unit.
1.6.2 Connect your hose on the oil sump drain valve.
1.6.3 Open this deplete valve and allow the desired number of oil to be able to circulation into an bare container given for the used oil. Then shut that getting valve.
1.6.4 Measure the precise quantity of oil removed from the actual unit.
1.6.5 Locate your Schrader control device involving the tennis ball control device and oil filter.
1.6.6 Loosely hook up acrylic pump to help Schrader valve.
1.6.7 Open oil charging pump motor until finally acrylic appears on the loading valve relationship along with make tighter your connection.
1.6.8 Close the ball control device just upstream from the Schrader control device link towards oil knock out this will make it possible for that oil to get information in the oil ranges to the compressor first as an alternative to immediately on the oil sump.
1.6.9 Energize the particular learn oil solenoid. This will permit the oil to search with the Schrader for the compressor. It calls for approximately 2 gallons of oil to enter into the actual lines.
1.6.10 After getting your first a couple of gallons, de-energize your grasp solenoid.
1.6.11 Open the baseball control device just upstream of the Schrader associated with the petrol pump. This enables your rest of the particular demand to be able to flow into the acrylic sump.
1.6.12 Charge that wine beverage chiller system with appropriate refrigerant. Charging of refrigerant will probably be completed at a strong background temps connected with not a lesser amount of than 35 C.
1.6.13 Used petrol out of this procedure shall be covered as well as disposed properly.
1.6.14 Implementation associated with this specific procedure will be determined by the actual result from the oil analysis executed inside procedure 1.5.
2.0 Maintenance involving Cooling Tower
2.1 Cleaning of Cooling Tower Filters
2.1.1 Close the particular remoteness valves belonging to the a / c tower system for being maintained.
2.1.2 Removed PVC Filler Materials inside your air conditioning system carefully. If the particular problem from the PVC Filler Materials is not necessarily suitable with regard to re-use, fast replacement should be done.
2.1.3 Clean the PVC Filler components employing pressure washer until eventually many dirt and mineral deposits are removed.
2.1.4 Re-install this PVC Filler material towards customizable tower.
2.1.5 Mandatory alternative involving PVC Filler components shall be done every 3 years.
2.1.6 This treatment is intended to be performed upon just about all cooling podium connected with wine bottle chiller products semi-annually.
2.2 Cleaning / De-scaling associated with Cooling Tower
2.2.1 Stop your Cooling Tower in addition to turn-off load breaker switch. Provide lockout tag out upon place breaker switch.
2.2.2 Carefully remove the strainer in the suction distinct the Cooling Tower plus rinse that by using water extensively (if possible). If range has already accumulated from the strainer, element de-scaler could possibly be used.
2.2.3 Cleaning / De-scaling connected with Cooling Tower Strainer should be performed once a month on all Cooling Towers.
2.3 Gear Oil Level Inspection
2.3.1 Stop the Cooling Tower plus turn-off insert breaker switch. Provide lockout label away on insert breaker switch.
2.3.2 Check items oil levels through perception glass provided for the items box. If products petrol can be listed below the particular ideal stage because indicated inside sight glass, examine ouert shell pertaining to doable escapes and apply the necessary corrective action.
2.3.3 Re-fill this equipment container with gear acrylic up to satisfactory level.
2.3.4 This method is intended to be carried out per month upon most tower of the Trane Chiller.
2.4 Gear Oil Replacement
2.4.1 Stop the actual Cooling Tower and turn-off place breaker switch. Provide , provide Lock-out Tag-out caution program on load breaker switch.
2.4.2 Drain your Gear Oil type the gear common box although the depleation plug.
2.4.3 Re-fill the actual Gear box with appropriate Gear Oil as long as suitable levels as said inside eyesight glass.
2.4.4 This method will be implemented upon most Cooling Tower with Trane Chiller semi-annually.
2.5 Inspection regarding Sprinkler Bearings, Fan Blades plus Cooling Tower Casing
2.5.1 Stop that Cooling Tower plus turn-off insert breaker switch. For security reasons, give lock-out tag-out on insert breaker switch.
2.5.2 Check Sprinkler Rotor Bearing. Lubricate or perhaps swap in case necessary.
2.53 Check Fan Blades intended for damage and machine deposits. Clean / De-scale or Replace whenever necessary.
2.5.4 Check Cooling Tower casing for harm along with scale deposit. Clean / De-scale or Repair in case necessary.
2.5.5 This surgery possibly be applied on all Cooling Tower semi-annually.
3.0 Maintenance connected with Chilled along with Condenser mineral water Pump
3.1 Stop the Pump as well as turn-off load breaker switch. For protection reasons, supply Lock-out Tag-out warning method on insert breaker switch.
3.2 Close remoteness valves within the being let go plus suction line.
3.3 Check place connected with motor contrary to the drinking water pump. Alignment shall be performed in case necessary.
3.4 Inspect Pump Mechanical / Packing close up pertaining to leaks. Replace Mechanical / Packing close up whenever necessary.
3.5 This treatment should be practiced with most Chilled and Condenser drinking water sends on a month-to-month basis.
4.0 Cleaning associated with Chilled plus Condenser Water In-line Strainers
4.1 Stop the actual chilled in addition to condenser water sends from the in-line strainers for being preserved plus shut the particular individual isolation valves along at the suction and being fired belonging to the pump.
4.2 Carefully take away the particular strainer from your tube line as well as to help it together with drinking water diligently (if possible). If machine possess undoubtedly built up inside strainer chemical de-scaler might be used.
4.3 Re-install that strainer.
4.4 Waste chemical substance and contaminated drinking water made by this process is intended to be comprised as well as disposed properly.
4.5 This procedure is intended to be done on most of condenser water in-line strainers semi-annually. Like wise, this specific procedure shall be conducted upon most evaporator drinking water in-line strainers annually.
5.0 Maintenance involving Air Handling Units
5.1 Cleaning associated with Cooling Coil
5.1.1 Stop the Air Handling Unit and go out your load breaker switch.
5.1.2 Rinse the particular soothing coil by using an okayed element coil solution (30 liters max.) applying pressurised inorganic applicator plus enable the substance do the job or maybe penetrate regarding 15 min.
5.1.3 Rinse that soothing coil with thoroughly clean drinking water ample sufficient to be able to eliminate most of grime within the coil.
5.1.4 Contaminated normal water because of this surgery will probably be protected along with disposed properly.
5.1.5 This treatment should be put in place on many Air Handling Units semiannually.
5.2 Cleaning with 50 microns pre-filters
5.2.1 Cleaning regarding 50 micron pre-filters will often be done upon most of Air Handling weekly. Clean water plus fairly neutral cleaning soap would always be utilised for this procedure.
5.3 Inspection connected with Pillow Blocks / Bearings / Fan Belt Condition and Tension
5.3.1 Stop that Air Handling Unit and also turn-off place breaker switch. For health and safety reasons, provide Lock-out Tag-out caution system about load breaker switch.
5.3.2 Check the condition involving Pillow Blocks plus Bearings. Replace / Lubricate if necessary.
5.3.3 Check alignment connected with lover pulley versus engine pulley. Alignment will be performed in the event that necessary.
5.3.4 Check Fan Belt condition as well as tension. Adjustment / Replacement will probably be carried out if necessary.
5.3.5 This procedure will probably be done regular on just about all Air Handling Units.
5.4 Inspection connected with AHU Casing / Cooling Coil
5.4.1 Stop the Air Handling as well as turn-off load breaker switch. For protection reasons, provide Lock-out Tag-out forewarning technique on load breaker switch.
5.4.2 Check Air Handling Unit ouert shell intended for damage, corrosion, along with cleanliness. Clean / Repaint / Repair shall be performed in the event necessary.
5.4.3 This treatment will probably be executed upon semi-annually on most of Air Handling units.
6 Maintenance of Expansion Tank
6.1 Condition of Expansion Tank Float Valve will likely to be inspected to get deterioration plus drift ball adjustment. Replace / Adjustment is intended to be done in the event that necessary.
6.2 Expansion Tank casing is intended to be inspected regarding damage, rust and cleanliness. Clean / Repaint / Repair is intended to be practiced if necessary.
6.3 This method should be conducted on Expansion Tank with month to month basis.
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