Basically, executing your prophylactic repair with a centralized air conditioning system throughout buildings is not a do-it-yourself task. This requires abilities plus very difficult improve a lot of the person in the maintenance department. Breakdowns would likely surely necessarily mean discomfort and earlier mentioned many guilt it on the protection folks idea. To stay clear of this, a schematic surgery need to be provided and also step-by-step activity have to become with all members belonging to the protection group.
With this, I include laid straight down step-by-steps process to do maintenance task regarding centralized air conditioning systems. More necessary will be consistency involving working this specific activity which can be extremely much critical for everyone centralized air conditioning demanding fitness systems. This manual will assist supervisors within drafting a servicing method or simply just instruction technicians executing your job.
Note that each repair task will be negotiated on a step-by-step method to ensure that that audience in order to simply follow every single task.
1.0 Maintenance regarding Chiller Units
1.1. Swabbing involving Condenser Shell and Tubes connected with Chillers units.
1.1.1 Close this isolation valve with your refrigerator condensing unit plus deplete the water within the condensing model throughout the drain interface or perhaps blow lower valve.
1.1.2 Chemical de-scaler is intended to be circulated towards the condenser tubes and shell employing a chemical knock out with the ports provided for this intent from the fridge unit. In order that will dissolved, lossen and eradicated hardened residue plus scales jammed on in the tubes, it's important the fact that compound de-scaler will be circulated to this condensing unit for at the least several hrs earlier the particular exact draining.
1.1.3 Drain the compound de-scaler and get rid of the particular covering at every ending belonging to the condensing unit.
1.1.4 Work your round nylon or brass bristled brush (attached to somewhat of a rod) around in addition to out and about of each finish of the condenser waters tubes to loosen the actual sludge).
1.1.5 Thoroughly remove this condenser mineral water tubes together with thoroughly clean mineral water along with installation the actual condensing component shell from every single end.
1.1.6 Contaminated waters plus waste products compound made by this surgery will probably be included and also disposed properly.
1.1.7 Implementation involving this specific surgery is intended to be primarily based about the diagnosis along with recorded managing parameters within your central air cooling unit.
1.2 Swabbing of Evaporator Shell along with Tubes of Chiller Units.
1.2.1 Use a similar washing system discussed inside procedure 1.1 above. Schedule in addition to rate regarding implementation involving this specific procedure will probably be based on the examination in addition to noted down working boundaries regarding your main air-con unit.
1.3 Replacement with Gas Pump along with Main Oil Filter connected with Trane Chiller
1.3.1 Stop the Chiller model plus close the actual manual assistance valves situated previous to and following filters.
1.3.2 Relieve that stress from the hydraulic range from the Schrader valve found somewhere between this ball valves plus the essential oil filter.
1.3.3 Use strap wrench for you to break up reduce the actual nut that secures this petrol separate out element towards filtration manifold.
1.3.4 Turn this enthusiast clockwise till the actual filter element detaches on the manifold.
1.3.5 Replace the actual separate out factor as well as re-install the fresh sift feature to your filtration system manifold.
1.3.6 Connect a lot more gauge to the acrylic obtaining control device plus vacuum cleaner this sieve element and a lot more to -30 with Hg.
1.3.7 Charge the actual oil range backside while using level of oil removed.
1.3.8 Open the particular isolation valves to be able to that essential oil supply system.
1.3.9 Waste plus dirtied essential oil because of this system will likely to be contained and disposed properly.
1.3.10 This procedure should be completed to help gas knock out filter and also major petrol filtration system associated with Trane refrigerator models annually.
1.4 Inspection / Cleaning of Chiller Casing
1.4.1 Ocular inspection connected with refrigerator casing will likely to be performed on almost all Chiller units. Any sign connected with oil / normal water leaks as well as destroyed aspect shall be noted along with supplied with required corrective action.
1.4.2 This treatment shall be done per month on all Chiller units.
1.5 Chiller Oil Analysis
1.5.1 Oil Analysis will likely to be carried out to all or any Trane chillers each year by way of a qualified Service Engineer / Technician.
1.6 Oil Replacement Procedure to get Trane Chiller units
1.6.1 Remove the refrigerant from your chiller system and incorporate the actual refrigerant to be able to a strong vacant canister fish tank in addition to through a vacuum pump motor until eventually this refrigerant difficulty drops to be able to eight psig. Then stop the actual wine beverage chiller unit.
1.6.2 Connect a hose to the oil sump depleation valve.
1.6.3 Open the depleation valve and make it possible for your wished-for volume involving acrylic to be able to flow into an clear container provided to the made use of oil. Then nearby that charging valve.
1.6.4 Measure the exact number of essential oil eradicated on the unit.
1.6.5 Locate the particular Schrader valve among the tennis ball control device plus oil filter.
1.6.6 Loosely join oil pump for you to Schrader valve.
1.6.7 Open petrol charging pump motor till oil is found for the asking control device association plus tighten the connection.
1.6.8 Close the baseball control device just simply upstream on the Schrader valve association towards essential oil push this will allow the actual oil to visit as a result of the oil outlines to the particular compressor primary in lieu of straight into the oil sump.
1.6.9 Energize this grasp oil solenoid. This enables this oil going with the Schrader to the compressor. It uses about 2 gallons of oil in order to load the lines.
1.6.10 After receiving the 1st couple of gallons, de-energize the particular master solenoid.
1.6.11 Open the shot control device just upstream connected with the particular Schrader linked with the actual oil pump. This enables the particular rest in the ask for to be able to movement towards the oil sump.
1.6.12 Charge your fridge component by using pertinent refrigerant. Charging of refrigerant shall be completed with an ambient temperatures with not necessarily less than 35 C.
1.6.13 Used petrol because of this method should be included and disposed properly.
1.6.14 Implementation of your procedure shall be influenced by the effect of the oil analysis performed within procedure 1.5.
2.0 Maintenance associated with Cooling Tower
2.1 Cleaning with Cooling Tower Filters
2.1.1 Close the remote location valves in the soothing structure to get maintained.
2.1.2 Removed PVC Filler Materials in the customizable podium carefully. If your ailment on the PVC Filler Materials just isn't ideal for re-use, fast replacing is intended to be done.
2.1.3 Clean that PVC Filler elements using demand washer right up until all dust in addition to mineral deposits will be removed.
2.1.4 Re-install that PVC Filler stuff for the customizable tower.
2.1.5 Mandatory replacement with PVC Filler materials will likely to be carried out every 3 years.
2.1.6 This procedure shall be completed about many air conditioning tower of fridge models semi-annually.
2.2 Cleaning / De-scaling connected with Cooling Tower
2.2.1 Stop your Cooling Tower as well as turn-off insert breaker switch. Provide lockout licence plate released with heap breaker switch.
2.2.2 Carefully take out this strainer on the suction line of the actual Cooling Tower and also rinse the idea with water extensively (if possible). If weighing machine provides already accumulated in the strainer, chemical de-scaler could be used.
2.2.3 Cleaning / De-scaling involving Cooling Tower Strainer is intended to be executed month-to-month upon all Cooling Towers.
2.3 Gear Oil Level Inspection
2.3.1 Stop your Cooling Tower in addition to turn-off fill breaker switch. Provide lockout label out upon load breaker switch.
2.3.2 Check gear acrylic stage as a result of view goblet furnished to the items box. If products oil can be below this acceptable levels as advised from the sight glass, check out ouert shell intended for achievable leaks in addition to carry out this necessary corrective action.
2.3.3 Re-fill your apparel container together with gear essential oil approximately satisfactory level.
2.3.4 This method shall be performed monthly with just about all tower with that Trane Chiller.
2.4 Gear Oil Replacement
2.4.1 Stop the Cooling Tower along with turn-off place breaker switch. Provide , give Lock-out Tag-out warning method on load breaker switch.
2.4.2 Drain the actual Gear Oil sort this products common box though the depleation plug.
2.4.3 Re-fill this Gear box by using proper Gear Oil around tolerable level seeing that pointed out inside the look glass.
2.4.4 This system will probably be implemented upon many Cooling Tower connected with Trane Chiller semi-annually.
2.5 Inspection of Sprinkler Bearings, Fan Blades along with Cooling Tower Casing
2.5.1 Stop the actual Cooling Tower in addition to turn-off heap breaker switch. For basic safety reasons, offer lock-out tag-out on fill breaker switch.
2.5.2 Check Sprinkler Rotor Bearing. Lubricate or swap whenever necessary.
2.53 Check Fan Blades regarding harm plus scale deposits. Clean / De-scale or perhaps Replace in case necessary.
2.5.4 Check Cooling Tower casing intended for damage in addition to weighing machine deposit. Clean / De-scale or even Repair in the event that necessary.
2.5.5 This surgery become enforced about many Cooling Tower semi-annually.
3.0 Maintenance connected with Chilled and Condenser water Pump
3.1 Stop the actual Pump along with turn-off insert breaker switch. For safe practices reasons, supply Lock-out Tag-out warning process on heap breaker switch.
3.2 Close remote location valves on the discharge along with suction line.
3.3 Check alignment associated with continuous motor against the waters pump. Alignment is intended to be done in the event that necessary.
3.4 Inspect Pump Mechanical / Packing close off intended for leaks. Replace Mechanical / Packing close up if necessary.
3.5 This procedure will probably be conducted on all Chilled and also Condenser waters pumps on a monthly basis.
4.0 Cleaning with Chilled in addition to Condenser Water In-line Strainers
4.1 Stop this perfectly chilled along with condenser mineral water pushes of the in-line strainers to get maintained as well as in close proximity that respected isolation valves in the suction in addition to release belonging to the pump.
4.2 Carefully take away the strainer with the pipe tier and scrub them by using waters thoroughly (if possible). If machine previously gathered from the strainer chemical de-scaler could possibly be used.
4.3 Re-install the strainer.
4.4 Waste element and also toxified drinking water using this method is intended to be comprised as well as disposed properly.
4.5 This method will probably be performed on almost all condenser drinking water in-line strainers semi-annually. Like wise, this specific procedure should be done about most evaporator water in-line strainers annually.
5.0 Maintenance of Air Handling Units
5.1 Cleaning of Cooling Coil
5.1.1 Stop that Air Handling Unit and switch off your fill breaker switch.
5.1.2 Rinse the chilling coil using a great authorized element coil solution (30 liters max.) applying pressurized chemical applicator as well as make the actual element work or sink for 15 min.
5.1.3 Rinse this chilling coil having thoroughly clean water enough enough to clear out most of filth in your coil.
5.1.4 Contaminated water out of this process shall often be contained and disposed properly.
5.1.5 This system will likely to be enforced on all Air Handling Units semiannually.
5.2 Cleaning involving 50 microns pre-filters
5.2.1 Cleaning of 50 micron pre-filters will be conducted on almost all Air Handling weekly. Clean mineral water in addition to natural detergent should certainly end up being used for this procedure.
5.3 Inspection regarding Pillow Blocks / Bearings / Fan Belt Condition and Tension
5.3.1 Stop the actual Air Handling Unit and turn-off load breaker switch. For protection reasons, supply Lock-out Tag-out caution system on fill breaker switch.
5.3.2 Check the actual problem of Pillow Blocks and Bearings. Replace / Lubricate in the event necessary.
5.3.3 Check alignment of enthusiast pulley versus motor pulley. Alignment will be conducted in the event that necessary.
5.3.4 Check Fan Belt condition along with tension. Adjustment / Replacement shall become practiced in the event necessary.
5.3.5 This surgery will probably be done regular on all Air Handling Units.
5.4 Inspection with AHU Casing / Cooling Coil
5.4.1 Stop that Air Handling and also turn-off weight breaker switch. For health and safety reasons, supply Lock-out Tag-out alert system on fill breaker switch.
5.4.2 Check Air Handling Unit casing for damage, corrosion, along with cleanliness. Clean / Repaint / Repair will be conducted if necessary.
5.4.3 This treatment shall become conducted with semi-annually on many Air Handling units.
6 Maintenance of Expansion Tank
6.1 Condition connected with Expansion Tank Float Valve should be inspected pertaining to harm and also float ball adjustment. Replace / Adjustment will be conducted in case necessary.
6.2 Expansion Tank casing shall be inspected intended for damage, rust plus cleanliness. Clean / Repaint / Repair will probably be executed whenever necessary.
6.3 This surgery would always be conducted on Expansion Tank upon once a month basis.
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