Carrier 19XRV Start-up, Operation And Maintenance Instructions Manual

Also see for AquaEdge 19XRV series: Start-up, operation and maintenance instructions Start-up and service instructions Installation instructions Start-up, operation and maintenance instructions Start-up and service instructions

Contents

56Table 10 — Bolt Torque Requirements, Foot PoundsCheck Chiller Tightness — Figure 29 outlines theproper sequence and procedures for leak testing.The 19XRV chillers are shipped with the refrigerantcontained in the condenser shell and the oil charge in thecompressor. The cooler is shipped with a 15 psig (103 kPa)refrigerant charge. Units may be ordered with the refrigerantshipped separately, along with a 15 psig (103 kPa) nitrogen-holding charge in each vessel.To determine if there are any leaks, the chiller should becharged with refrigerant. Use an electronic leak detector tocheck all flanges and solder joints after the chiller is pressur-ized. If any leaks are detected, follow the leak test procedure.If the chiller is spring isolated, keep all springs blocked inboth directions to prevent possible piping stress and damageduring the transfer of refrigerant from vessel to vessel duringthe leak test process, or any time refrigerant is beingtransferred. Adjust the springs when the refrigerant is in operat-ing condition and the water circuits are full.Refrigerant Tracer — Carrier recommends the use of anenvironmentally acceptable refrigerant tracer for leak testingwith an electronic detector or halide torch.Ultrasonic leak detectors can also be used if the chiller isunder pressure.BOLT SIZE(in.)SAE 2, A307 GR AHEX HEADNO MARKSLOW CARBON STEELSAE 5, SA449SOCKET HEAD OR HEXWITH 3 RADIAL LINESMEDIUM CARBON STEELSAE 8, SA354 GR BDHEX HEADWITH 6 RADIAL LINESMEDIUM CARBON STEELMinimum Maximum Minimum Maximum Minimum Maximum1 / 4 4 6 6 9 9 135 / 16 8 11 13 18 20 283 / 8 13 19 22 31 32 467 / 16 21 30 35 50 53 751 / 2 32 45 53 75 80 1159 / 16 46 65 75 110 115 1655 / 8 65 95 105 150 160 2253 / 4 105 150 175 250 260 3707 / 8 140 200 265 380 415 5901 210 300 410 580 625 8931 1 / 8 330 475 545 780 985 1,4101 1 / 4 460 660 770 1,100 1,380 1,9601 3 / 8 620 885 1,020 1,460 1,840 2,6301 1 / 2 740 1060 1,220 1,750 2,200 3,1501 5 / 8 1010 1450 1,670 2,390 3,020 4,3101 3 / 4 1320 1890 2,180 3,110 3,930 5,6101 7 / 8 1630 2340 2,930 4,190 5,280 7,5502 1900 2720 3,150 4,500 5,670 8,1002 1 / 4 2180 3120 4,550 6,500 8,200 11,7102 1 / 2 3070 4380 5,000 7,140 11,350 16,2102 3 / 4 5120 7320 8,460 12,090 15,710 22,4403 6620 9460 11,040 15,770 19,900 28,440Do not use air or oxygen as a means of pressurizingthe chiller. Mixtures of HFC-134a and air can undergocombustion.