Danfoss VLT FC 103 Operating Instructions Manual

Also see for VLT FC 103: Service guide Installation guide Installation guide Operating guide Installation guide

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Danfoss VLT FC 103 Operating Instructions Manual Manual pdf 14 page image

3.1.3 Tools Required for Installation• Drill with 10 or 12 mm drill• Tape measure• Wrench with relevant metric sockets (7-17 mm)• Extensions to wrench• Sheet metal punch for conduits or cable glandsin IP21/Nema 1 and IP54 units• Lifting bar to lift the unit (rod or tube max. Ø 5mm (1 inch), able to lift minimum 400 kg (880lbs).• Crane or other lifting aid to place the frequencyconverter in position• A Torx T50 tool is needed to install the E1 in IP21and IP54 enclosure types.3.2 Pre-installation Checklist• Before unpacking the frequency converter, ensurethat the packaging is intact. If any damage hasoccurred, immediately contact the shippingcompany to claim the damage.• Unpack the frequency converter as close aspossible to the final installation site.• Ensure the model number number on thenameplate corresponds to the model number onthe order.• Ensure that each of the following are rated forthe same voltage:• Mains (power)• Frequency converter• Motor• Ensure that the frequency converter outputcurrent rating is equal to or greater than themotor full load current for peak motorperformance.• Motor size and frequency converterpower must match for proper overloadprotection.• If frequency converter rating is less thanmotor, full motor output cannot beachieved.3.3 Mechanical Installation3.3.1 Cooling• Provide top and bottom clearance for air cooling.Generally, 225 mm (9 in) is required.• Improper mounting can result in overheating andreduced performance.• Consider derating for temperatures startingbetween 45 °C (113 °F) and 50 °C (122 °F) andelevation 1000 m (3300 ft) above sea level. SeeVLT® Refrigeration Drive FC 103 Design Guide fordetailed information.The high-power frequency converters utilise a back-channel cooling concept that removes heat sink coolingair. Approximately 90% of the heat is lead out of the backchannel of the frequency converters. The back-channel aircan be redirected from the panel or room using one of thekits below.Duct coolingA back-channel cooling kit is available to direct the heatsink cooling air out of the panel when an IP20/chassisfrequency converter is installed in a Rittal enclosure. Use ofthis kit reduces the heat in the panel and smaller door fanscan be specified on the enclosure.Cooling out the back (top and bottom covers)The back-channel cooling air can be ventilated out of theroom so that the heat from the back channel is notdissipated into the control room.NOTICEA door fan(s) is required on the enclosure to remove theheat not contained in the back channel of the frequencyconverters and any additional losses generated by othercomponents inside the enclosure. Calculate the totalrequired air flow so that the appropriate fans can beselected. A cooling clearance of 225 mm is requiredabove the frequency converter.AirflowSecure the necessary airflow over the heat sink. The flowrate is shown in Table 3.2.Installation Operating Instructions12 Danfoss A/S © Rev. 05/2014 All rights reserved. MG16J20233