Carrier 30RBM 160 Installation, Operation And Maintenance Instructions

Also see for 30RBM 160: Installation, operation and maintenance instructions

Contents

Carrier 30RBM 160 Installation, Operation And Maintenance Instructions Manual pdf 62 page image

62Refrigerant circuit checks:• The unit is subject to F-gas tight regulatory checks.Please refer to the table in the introduction.• Check the unit operating parameters and compare themwith the previous values,• Check the operation of the high pressure switches.Replace as necessary,• Check the fouling of the filter drier. Replace it if necessary,• Keep an up-to-date service booklet specific to therefrigeration unit in question.Ensure all adequate safety measures are taken for allthese operations: use appropriate PPE (personalprotective equipment), comply with all industry andlocal regulations, use common sense.13.3 - Level 3 maintenanceMaintenance at this level requires specific skills, qualifications,tools and expertise. Only the manufacturer, his representativeor authorised agent are permitted to carry out this work.This maintenance work relates to the following:• Replacement of major components (compressor, waterheat exchanger),• Operations on the refrigerant circuit (handling refrigerant),• Modification of factory-set parameters (change ofapplication),• Movement or disassembly of the refrigeration unit,• Any operation due to proven lack of maintenance,• Any operation covered by the warranty,• One or two leak detection operations per year performedby qualified personnel using a certified leak detector.• To reduce waste, the refrigerant and the oil must betransferred in accordance with applicable regulations,using methods that limit refrigerant leaks and pressuredrops and with materials that are suitable for the products.• Any detected leaks must be repaired immediately• The compressor oil that is recovered during maintenancecontains refrigerant and must be treated accordingly.• Refrigerant under pressure must not be vented to theopen air.• If the refrigerating circuit must be opened, cap allopenings for a period of up to one day. If open for longer,blanket the circuit with a dry, inert gas (e.g. nitrogen).13.4 - Tightening of the electrical connectionsComponent Designation in theunitValue(N.m)Welded screw PE, customer connection - 40Screw terminal, fuse holder FU1, FU2, FU3, FU4 10Screw terminal, fuse holder FU100 0.8-1.2Screw terminal, compressor contactor KM1-->KM12 3-4.5Brass screw M6, compressor ground EC- 5M6 screw, compressor connection EC- 5Screw terminal, circuit breakers QM- 2Screw terminal, pump contactor KM90 - KM90A 2,5M8 screw customer connection (size 160-220) QS100 15 to 22M10 screw customer connection (size 260-400) QS100 30 to 44M12 screw customer connection (size 430-520) QS100 50 to 75Screw terminal, circuit breakers (size 160-400) QF100 3.2-3.7Screw terminal, circuit breakers (size 430-520) QF100 8-10Screw terminal, fuse holder 32A (opt231) Fu- 2,5Screw terminal, fuse holder 100A (opt231) Fu- 3.5 - 413.5 - Tightening torques for the main fasteningsScrew type Use Value(N.m)Metal screw D=4.8 Condensing module, Casing, Supports 4,2Taptite M10 screw Air coil sub-assembly, chassis-structure, electricalbox fixing, plate heat exchanger and pump30Taptite M6 screw Pipe supports, enclosure, variable frequency drivesupports7Oil equalisationscrewOil equalisation line 145H M6 screw Pipe clip 10H M10 nut Compressor chassis, Compressor fixing 30