Carrier Aquaforce 30XAS Series Installation, Operation And Maintenance Instructions

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Carrier Aquaforce 30XAS Series Installation, Operation And Maintenance Instructions Manual pdf 6 page image

61 - INTRODUCTION1.2 - Equipment and components underpressureThese products incorporate equipment or components underpressure, manufactured by Carrier or other manufacturers. Werecommend that you consult your appropriate national tradeassociation or the owner of the equipment or components underpressure (declaration, re-qualification, retesting, etc.). Thecharacteristics of this equipment/these components are given onthe nameplate or in the required documentation, supplied with theproducts.These units are intended to be stored and operated in anenvironment where the ambient temperature must be not lessthan the lowest allowable temperature indicated on the nameplate.See chapter 9.2 “Pressure vessels”.1.3 - Maintenance safety considerationsCarrier recommends the following drafting for a logbook (the tablebelow should not be considered as reference and does not involveCarrier responsibility):Intervention Name of thecommissioningengineerApplicablenationalregulationsVerificationOrganismDate Nature (1)(1) Maintenance, repairs, regular verifications (EN 378), leakage, etc.Engineers working on the electric or refrigeration componentsmust be authorized, trained and fully qualified to do so.All refrigerant circuit repairs must be carried out by a trainedperson, fully qualified to work on these units. He must have beentrained and be familiar with the equipment and the installation. Allwelding operations must be carried out by qualified specialists.Any manipulation (opening or closing) of a shut-off valvemust be carried out by a qualified and authorised engineer.These procedures must be carried out with the unit shut-down.NOTE: The unit must never be left shut down with the liquidline valve closed, as liquid refrigerant can be trapped betweenthis valve and the expansion device. (This valve is situatedon the liquid line before the filter drier box.)Equip the engineers that work on the unit as follows:Personal protectionequipment (PPE) (1)OperationsHandling Maintenance,serviceWelding orbrazing (2)Protective gloves,eye protection,safety shoe,protective clothing.X X XEar protection. X XFiltering respirator. X(1) We recommend to follow the instructions in EN 378-3.(2) Performed in the presence of A1 refrigerant according to EN 378-1.Never work on a unit that is still energized.Never work on any of the electrical components, until thegeneral power supply to the unit has been cut using thedisconnect switch(es) in the control box(es).If any maintenance operations are carried out on the unit,lock the power supply circuit in the open position ahead ofthe machine.If the work is interrupted, always ensure that all circuits arestill deenergized before resuming the work.ATTENTION: Even if the unit has been switched off, the powercircuit remains energized, unless the unit or circuit disconnectswitch is open. Refer to the wiring diagram for further details.Attach appropriate safety labels.Units with option 231 are equipped with capacitor batterieswith a discharge time of five (5) minutes after disconnectingthe power. After disconnecting the power to the control box,wait five minutes before opening the control box. Before anyintervention, verify that there is no voltage present at anyaccessible conducting parts of the power circuit.Operating checks:Important information regarding the refrigerant used:• This product contains fluorinated greenhouse gascovered by the Kyoto protocol.Refrigerant type: R-134aGlobal Warming Potential (GWP): 1430CAUTION:1. Any intervention on the refrigerant circuit of this productshould be performed in accordance with the applicablelegislation. In the EU, the regulation is called F-Gas,N°517/2014.2. Ensure that the refrigerant is never released to theatmosphere during installation, maintenance or equipmentdisposal.3. The deliberate gas release into the atmosphere is notallowed.4. If a refrigerant leak is detected, ensure that it is stoppedand repaired as quickly as possible.5. Only a qualified and certified personnel can performinstallation operations, maintenance, refrigerant circuitleak test as well as the equipment disposal and therefrigerant recovering.6. The gas recovery for recycling, regeneration or destructionis at customer charge.7. Periodic leak tests have to be carried out by the customeror by third parties. The EU regulation set the periodicityhere after:System WITHOUTleakage detection No Check 12 Months 6 Months 3 MonthsSystem WITH leakagedetection No Check 24 Months 12 Months 6 MonthsRefrigerant charge/circuit (CO2 equivalent) < 5 Tons5 ≤Charge< 50 Tons50 ≤Charge< 500 TonsCharge> 500 Tons (1)Refrigerant charge/ Circuit(kg)R134A(GWP 1430)Charge< 3.5 kg3.5 ≤Charge< 34.9 kg34.9 ≤Charge< 349.7 kgCharge> 349.7 kgR407C(GWP 1774)Charge< 2.8 kg2.8 ≤Charge< 28.2 kg28.2 ≤Charge< 281.9 kgCharge> 281.9 kgR410A(GWP 2088)Charge <2.4 kg2.4 ≤Charge< 23.9 kg23.9 ≤Charge< 239.5 kgCharge> 239.5 kgHFO’s: R1234ze No requirement(1) From 01/01/2017, units must be equipped with a leakage detection system.8. A logbook must be established for equipments subject toperiodic leak tests. It should contain the quantity and thetype of fluid present within the installation (added andrecovered), the quantity of recycled fluid, regenerated ordestroyed, the date and output of the leak test, thedesignation of the operator and its belonging company,etc.9. Contact your local dealer or installer if you have anyquestions.The information on operating inspections given in annex Cof standard EN 378 can be used if no similar criteria exist inthe national regulations.While working in the fan area, especially when grilles orcasings are removed, disconnect the fan power supply toprevent their automatic restart.