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

70Table 14 — Refrigerant (HFC-134a) ChargeINITIAL START-UPPreparation — Before starting the chiller, verify:1. Power is on to the VFD, oil pump relay, oil heater relay,and the chiller control panel.2. Cooling tower water is at proper level and at-or-belowdesign entering temperature.3. Chiller is charged with refrigerant and all refrigerant andoil valves are in their proper operating positions.4. Oil is at the proper level in the reservoir sight glasses.5. Oil reservoir temperature is above 140 F (60 C) or aboverefrigerant temperature plus 50° F (28° C).6. Valves in the evaporator and condenser water circuits areopen.NOTE: If the pumps are not automatic, ensure water iscirculating properly.7. Access the CONTROL TEST screen. Scroll down on theTERMINATE LOCKOUT option. Press the SELECT (toenable the chiller to start) and answer YES to reset unit tooperating mode. The chiller is locked out at the factory inorder to prevent accidental start-up.Check Motor Rotation1. Engage the control power circuit breaker (CB2) locatedinside the left hand side of the VFD enclosure.2. Finally close the main motor disconnect (CB1) on thefront of the VFD enclosure.3. The VFD checks for proper phase rotation as soon aspower is applied to the VFD and the PIC III controlspower up. The controls do not permit a start if the phaserotation is not correct.4. An alarm message will appear on the ICVC if the phaserotation is incorrect. If this occurs, reverse any 2 of the 3incoming power leads to the VFD and reapply power.The motor is now ready for a rotation check.5. After the default screen status message states ‘Ready toStart’ press the softkey. The PIC III controlperforms start-up checks.6. When the VFD is energized and the motor begins to turn,check for clockwise motor rotation. See Fig. 37.Check Oil Pressure and Compressor Stop1. When the motor is at full speed, note the OIL PRES-SURE reading on the ICVC default screen. Normal19XRV oil pressure readings are between 18 and 30 psid(124 to 207 kPad). The oil pressure should be between 18and 40 psid (124 to 276 kPad) on Frame 3 compressorsequipped with rolling element bearings.2. Press the Stop button and listen for any unusual soundsfrom the compressor as it coasts to a stop.To Prevent Accidental Start-Up — A chiller STOPoverride setting may be entered to prevent accidental start-upduring service or whenever necessary. Access the MAINSTATscreen and using the or softkeys,highlight the CHILLER START/STOP parameter. Override thecurrent START value by pressing the softkey. Pressthe softkey followed by the softkey. Theword SUPVSR! displays on the ICVC indicating the overrideis in place.To restart the chiller, the STOP override setting must beremoved. Access the MAINSTAT screen and usingor softkeys highlight CHILLER START/STOP.The 3 softkeys that appear represent 3 choices:• — forces the chiller ON• — forces the chiller OFF• — puts the chiller under remote or schedulecontrolTo return the chiller to normal control, press thesoftkey followed by the softkey. Formore information, see Local Start-Up, page 53.The default ICVC screen message line indicates whichcommand is in effect.COOLERCODEREFRIGERANTCHARGE CONDENSERCODEREFRIGERANTCHARGElb kg lb kg20 345 156 20 225 10221 385 175 21 225 10222 435 197 22 225 10230 350 159 30 260 11831 420 191 31 260 11832 490 222 32 260 11835 400 181 35 310 14136 480 218 36 310 14137 550 249 37 310 14140 560 254 40 280 12741 630 286 41 280 12742 690 313 42 280 12745 640 290 45 330 15046 720 327 46 330 15047 790 358 47 330 15050 750 340 50 400 18151 840 381 51 400 18152 900 408 52 400 18155 870 395 55 490 22256 940 426 56 490 22257 980 445 57 490 22260 940 426 60 420 19061 980 445 61 420 19062 1020 463 62 420 19065 1020 463 65 510 23166 1060 481 66 510 23167 1090 494 67 510 23170 1220 553 70 780 35471 1340 608 71 780 35472 1440 653 72 780 35475 1365 619 75 925 42076 1505 683 76 925 42077 1625 737 77 925 42080 1500 680 80 720 32781 1620 735 81 720 32782 1730 785 82 720 32785 1690 767 85 860 39086 1820 826 86 860 39087 1940 880 87 860 390IMPORTANT: The Reliance VFD warranty will be void ifthe VFD is not started by a technician who has completedReliance LiquiFlo™ Tier 1 Training and whose name isregistered with Reliance.Do not permit water or brine that is warmer than 110 F(43 C) to flow through the cooler or condenser. Refrigerantoverpressure may discharge through the relief valves andresult in the loss of refrigerant charge, damaging the chiller.Do not check motor rotation during coastdown. Rotationmay have reversed during equalization of vessel pressures.LOCALNEXT PREVIOUSSELECTSTOP ENTERNEXTPREVIOUSSTARTSTOPRELEASERELEASE ENTER