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NUMBER OF DEFROSTS

Initial number of defrost per day depends on a number of factors including ambient humidity, store loading profile, temperature of goods, door opening to load

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ing bay ambient etc.

Start with 3 defrost per day – low usage store in low humidity.
Start with 4 defrost per day – high usage with high ambient humidity.

It is important to review defrost operation on a regular basis to avoid possible damage or loss of performance caused by ice build-up.  If ice is not clearing from 
the coil reposition the defrost termination probe, increase termination temperature or increase defrosts. If steaming is occurring reduce the number of defrosts 
or lower the termination temperature.

TIME OF DEFROST

Defrosting every 6 or 8 hours is not always ideal.  Defrosts should be planned at strategic times, before the shift starts, during a break, after a long store                          
loading period etc. In larger stores with 2 or 3 evaporators all units should be defrosted at the same time – this avoids steam from one defrosting evaporator 
being refrozen on an operating unit.

 MOISTURE INGRESS

Defrost effectiveness can be improved by reducing moisture ingress into the cold store. Low temperatures inside a cold store reduce the air pressure causing 
moist ambient air to be sucked in when the doors are open. To reduce moisture ingress doors opening time should be kept to a minimum, fit air curtains or in high 
humidity location fit an air lock or have access to the frozen rooms from chill areas.

LOCATION OF DEFROST TERMINATION PROBE 

If  a defrost termination thermostat is to be fitted then the normal starting position of the defrost probe is 1/3rd of the way along the coil face (air on) and about 

2/3rds up away from any heater elements. Once the system is in operation it may be necessary to relocate the probe to the area of the coil where ice remains the 

longest during defrost (possibly air off face)

COIL HEATERS

Coil block heaters are either ‘U’ bent or straight and they have to be disconnected from the terminal box at the electrical connection end and sometimes from the 
auxiliary terminal box at the refrigeration connection end of the cooler. These heaters are withdrawn and replaced from the refrigeration connection end of the 
cooler taking care to retain the ‘anti-creep’ clips. 

These clips may be re-used but will possibly need re-tensioning. To avoid damage to either the coil fins or the heater cable, the heater cable should be inserted 
into a similar length of 1/4” OD copper tube and fed carefully through the fins with a twisting motion. With care the heater element sheaths can be curved through 
90° (minimum radius 24” for removal and refitting purposes. Before attempting to refit a heater, it is essential to ensure that the coil heater hole has not become 

obstructed with ice and wherever possible the coil block should be above freezing point.

DRAIN PAN HEATERS

Replacement is achieved by disconnecting the elements from the terminal box(es) after removing the end cover and drain pan, and unclipping/unscrewing the 
heater retaining clips.

INITIAL STARTING 

Before running the unit for the first time, check that all guards, motor mountings and electrical covers are secure, all  unnecessary terminal block links are                 

removed and fans rotate freely. Remove any lifting channels.

• 

Check that that the unit is secured in the correct manner. Only fix the unit using the mounting slots provided.

• 

Check that the fan rotation of 3 phase units is correct. Reversing any two phases of the motor supply will change the rotation (AC fan sets only).

Summary of Contents for TEC1

Page 1: ...Kelvion Commercial Coolers INSTALLATION MAINTENANCE Health Safety Warranty Procedure Parts Spares Dimensions Weight Installation Fanset Wiring Control options CONTENT KG...

Page 2: ...PROTECTIVE CLOTHING Sharp edges on the casework of the units and coil fins are a possible cause of cuts to fingers and hands Appropriate protective clothing gloves should always be worn ENSURE THAT T...

Page 3: ...l be advised and further instructions requested either to return the item or to issue an official order to replace or rectify the item If you require a replacement product the buyer will be asked to s...

Page 4: ...TEC SPARES PARTS DIMENSIONS 15 378mm Casework TEC1 TEC5 TEC7 8 210mm 3 4 D CONN TEC1 TEC5 TEC7 15 378mm Casework 10 260 5mm 3 4 D CONN A Casework B C...

Page 5: ...ment 425W 2 215 260 401 100461664 WT3 5 4 LTKIT Defrost Element 575W 2 215 260 601 100461668 WT5 LTKIT Defrost Element 675W 2 215 260 701 100461671 WT6 LTKIT Defrost Element 470W 4 215 415 001 1004617...

Page 6: ...ORIFICE FIT FANSET M4 FIXINGS 4 PER FAN MONOBOLT FAN PLATE TO BOTTOM PLATE 5 OFF MONOBOLTS ALUMINIUM RIVETS TO BE USED TO FIX BOTTOM PLATE DRAIN PAN FITTED LOOSE FOR TRANSPORT PLACE 4 x M6 FIXINGS IN...

Page 7: ...30 KEC35 40 45 DRAIN PAN CASE 1500 19 040 100458835 KEC55 70 TABLE A UNIT FAN SET SAP NUMBER J BOX SAP NUMBER KEC10 231 9030 0121 100464214 218 901 013 100462723 KEC15 231 9030 0121 100464214 218 901...

Page 8: ...5 409 5 555 574 9 KME SPARES PARTS DIMENSIONS 60 MOUNTING CTRS 17 5 A MIN KME 50 175 146 B O A D D PAN COIL CONNS END 1 D CONN ELEC CONNS END C MOUNTING CTRS 146 53 MOUNTING BRACKET DETAIL SLOT 13W X...

Page 9: ...HT A B C D 6 FPI 4 FPI 3 FPI KME50 350mm 1007mm 715mm 1011mm 2 1Kg 85Kg KME60 350mm 1332mm 1040mm 1336mm 2 9Kg 112Kg KME80 400mm 1682mm 1390mm 1686mm 2 6Kg 129Kg KME95 450mm 1682mm 1390mm 1686mm 3 9Kg...

Page 10: ...ution labels 3 Pass label 4 Name Plate 5 Plate label Fork lift points K Kelvion elvion KEC30 4L 44L L1Ph S3G PI 1 Maximum operating pressure suitable for this product 2 Electrical supply information 3...

Page 11: ...11 Keepdry Thiswayup Fragile Recycle Stacking 3...

Page 12: ...intrayalongthesideoftheunit 3 Placeintopositionusingthelocationguidance UNPACKINGONALLTECMODELS Thelocationoftheunitshouldbecarefullyselectedtoensurethat 4 Air distribution from the cooler is not adve...

Page 13: ...ingmustbeinaccordancewithgoodrefrigerationpractice 2 Airenteringthecoolerisnotobstructed 3 Theunitmustbeinstalledlevelinbothdirections 4 Maintenanceaccessshouldbeconsideredwhenlocatingtheproduct inclu...

Page 14: ...Nut 1 O D Washer MOUNTINGTHEUNIT Evaporator Mounting Bracket 1 O D Washer Nut 1 5 8 O D Washer Products A Free air discharge 1 4 ft drop per ft Trap Door and air curtain Seal Required Drain...

Page 15: ...tor Airstreamshouldbeunobstructedbybeams lightsorotherstoreproducts generallydownaislestowardsthedoor Evaporatorsaredesignedtobeflushandlevelceilingmounted Mountingrodsandsupportstructureshouldbedesig...

Page 16: ...re necessary Dry nitrogen should be passed through the pipework during brazingtominimiseoxidisation WARNING UseappropriatePPE personalprotectionequipment duringpipework refrigerantchargingandcommissio...

Page 17: ...R MANIFOLDCAPS Iftheholdingchargeisnotpresentthemanufacturershouldbecontactedimmediately Unitsthathavebeenpackedincardboardmustbestoredinadryenvironmenttopreventanywaterdamage DAMAGECAUSEDBYINCORRECTI...

Page 18: ...with a bush or grommet Unitelectricalschematicissecuredtotheinsideoftheterminalboxorendcover MOTORS AllmotorsareEC electronicallycommutated andwiredtotheterminalbox Wiresarefixedtoascrewor cageclamp t...

Page 19: ...tSupplyTo TerminalBlockTerminals1andN 4 Lowspeed Linkterminalblock terminals1 2 5 Defrostheaters Ifrequired TerminalBox 218 901 013 271 111 145 KEC10 15 20 25 30 FAN DEFROST NOTE 1 Supply230V 1PH50 60...

Page 20: ...als1 2 5 Defrostheaters ifrequired 6 TerminalBox 218 901 015 271 111 147 KEC35 40 45 55 70 FAN DEFROST NOTE 1 FansSupply230V 1PH50 60Hz 115V 1PH50 60Hz 2 DefrostHeatersSupplyOption 3 230V 1Ph 50Hzor40...

Page 21: ...111 125 4 TerminalBox S 290 660 W 290 661 W KME50 175 1PHASEFANSUPPLY NOTE 1 FanSupply230V 1PH50 60Hz 115V 1PH50 60Hz 2 AppliesToUKMERangeOnly KME50 601Fan KME80 952Fans KME115 1403Fans KME1754Fans 3...

Page 22: ...x s 290 668 W 290 661 W 6 Warning onlysuitablefor3 phaseandneutralconnection KME50 175 3PHASEFANSUPPLY NOTE 1 FanSupply480V 3PH50 60Hz 2 AppliesToKMERangeOnly KME50 601Fan KME80 952Fans KME115 1403Fan...

Page 23: ...ere there are two or more evaporators on a refrigeration system it is possible to defrost one using the hot gas generated in the operating of the other This arrangement allows defrost flow to be in th...

Page 24: ...1 3rd of the way along the coil face air on and about 2 3rdsupawayfromanyheaterelements Oncethesystemisinoperationitmaybenecessarytorelocatetheprobetotheareaofthecoilwhereiceremainsthe longestduringde...

Page 25: ...ely Electricalconnectionsforsecurityofattachment Checkallexternalsurfacesannuallyforanycorrosionorpeeling Cleananyaffectedareathoroughlywith awirebrush applyacoatofzincprimerandretouchwithasuitablefin...

Page 26: ...tobedecidedbythehygienemanagementoftheenduserandtobeappropriate tothetypeofproductintheroom Themostimportantissueapartfromthereductionofbacteriawithinthecasingistoreducethecorrosionpotential cleaningi...

Page 27: ...e EN60204 1 1999Safetyofmachinery Electricalequipmentofmachines BSEN61032 1998Protectionofpersonsandequipmentbyenclosures Probesforverification propellerfanunits BSEN13857 2008Safetyofmachinery Safety...

Page 28: ...in line or tray heater failure Drain line blocked with debris or ice Poor drain line slop or installation Trap located in cold store Action Check drain line installation Isolate electrical supply and...

Page 29: ...om Excessive build up of ice and snow on cooler ceiling product and floor Cause Failed door seals Excessive door opening Failed cold store pressure relief valve Action Replace door seals Review cold s...

Page 30: ...www kelvion com Copyright Kelvion Cooler Manual Sep 2020...

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