Carrier 30HXC Installation, Operation And Maintenance Instructions

Also see for 30HXC Series: Installation, operation and maintenance instructions Installation, operation and maintenance instructions

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Carrier 30HXC Installation, Operation And Maintenance Instructions Manual pdf 23 page image

235.8 - Compressor electrical data - 30HXC + option 60/61 + option 150/150AReference Size I nom. MHA LRA LRA (Y) LRA (S) 1 cp. LRA (S) 2 cp.06NA2123W6N 39 62 84 485 153 NA NA06NA2146W7N 46 73 102 580 183 NA NA06NA2174W7N 56 89 125 685 216 245 34506NA2209W7N 66 107 153 820 259 290 41006NA2250W7N 80 127 178 920 291 320 46006NA2250W7E 80+ 148 214 1175 371 405 535Legend06NA - Compressor for air-cooled unitsN - Non-economized compressorE - Economized compressorI nom. - Average current draw of the compressor at ARI conditionsMHA - Must hold amperes (maximum operating current) at 342 V (A)LRA - Locked rotor current with across-the-line startLRA (Y) - Locked rotor current at reduced current (star/delta start-up mode)LRA (S) 1 cp. - Start-up with reduced current with electronic starter (start-up duration 3 seconds max.) for one compressor per circuitLRA (S) 2 cp. - Start-up with reduced current with electronic starter (start-up duration 3 seconds max.) for two compressors per circuit6 - UNIT CHARACTERISTICS FOR 30HXC UNITS WITH VERY LOW TEMPERATURE OPTION (OPTION 6)The 30HXC units with the very low temperature option aredirectly derived from the 30HXC models equipped with the highcondensing temperature option (option 150). Unit sizes availablewith the very low temperature option are the following: 30HXC090, 110, 130, 155, 175, 200, 230, 260, 310, 345.Their application range allows the production of glycol/watersolution down to -10°C with ethylene glycol at 35% (by weight)or down to -7°C with propylene glycol at 30% (by weight). Theprecision of these amounts is critical for correct unit operation.In addition to the ones already listed for the high condensingtemperature option (see chapter 4.4) the main modifications are:• the evaporator is equipped with reinforced thermal 38 mminsulation,• the electronic expansion valves are changed,• the use of a wide-band oil differential sensor.All technical data is the same as for the 30HXC units with option150 except for the following chapters:6.1 - Options and accessoriesThe options available for the 30HXC units equipped with the verylow temperature option are as follows: 20, 22, 60, 61, 84, 84D,84R, 92, 104A, 107, 107A, 152, 193, 194, 197, 199.6.2 - Operating range, 30HXC units with very lowtemperature option30HXC evaporator with 35% ethylene glycol °C Minimum MaximumEvaporator entering water temperature -7.2 21Evaporator leaving water temperature -10 1530HXC evaporator with 30% polypropylene glycolEvaporator entering water temperature -4.2 21Evaporator leaving water temperature -7 1530HXC condenserCondenser entering water temperature 20 50Condenser leaving water temperature 25 55Outdoor air temperature 6 40For very low temperature applications the anti-freeze solution iscritical for correct unit operation. The following amounts (byweight) are required:Evaporator leaving water, °C Ethylene glycol, % Propylene glycol, %-6 25 27-7 28 30-8 30 NA-9 33 NA-10 35 NA