Carrier 23XRV Installation Instructions Manual

Also see for EVERGREEN 23XRV: Start-up and service instructions Start-up and service instructions Start-up and service instructions Installation instructions Product data

Contents

51Table 21 — Relief Valve LocationsNOTE: All valves relieve at 185 psig (1275 kPa).Step 7 — Make Electrical Connections — Fieldwiring must be installed in accordance with job wiring dia-grams and all applicable electrical codes. Refer to Fig. 60-62for typical wiring and component layout.These instructions are intended for qualified electrical per-sonnel familiar with servicing and installing AC drives. Anyquestions or problems with the products described in this man-ual should be directed to your local Carrier Service Office.Wiring diagrams in this publication are for reference onlyand are not intended for use during actual installation; followjob specific wiring diagrams.GROUNDING THE CONTROLS/DRIVE ENCLOSURE —Use the following steps to ground the drive.1. Open the left door of the control center.2. Run a suitable equipment grounding conductor unbrokenfrom the drive to earth ground. Tighten these groundingconnections to the proper torque. See Fig. 10, 11 and 41.3. Close the door to the control center.INSTALLING INPUT POWER WIRING — All wiringshould be installed in conformance with the applicable local, na-tional, and international codes (e.g., NEC/CEC). Signal wiring,control wiring, and power wiring must be routed in separateconduits to prevent interference with the drive operation. Usegrommets, when hubs are not provided, to guard against wirechafing.Use the following steps to connect AC input power to themain input circuit breaker:1. Turn off, lock out, and tag the input power to the drive.2. Remove the input power wiring panel above the VFDcircuit breaker and drill the number of openings for theAC input leads (refer to Fig. 10 and 11). Mount all con-duit hardware on the input power wiring panel before re-installing the input power wiring panel on the VFD enclo-sure. Take care that metal chips and hardware do not enterthe enclosure.LOCATION FRAMESIZE RELIEF VALVE OUTLET SIZE QUANTITY WITHOUTISOLATION VALVESQUANTITY WITHISOLATION VALVESDISCHARGE PIPEASSEMBLY3-5 1 1 / 4 -in. NPT FEMALE CONNECTOR 1 1A,B 1 1 / 4 -in. NPT FEMALE CONNECTOR N/A 1COOLER 3-5, A,B 1 1 / 4 -in. NPT FEMALE CONNECTOR 2 1CONDENSER 3-5, A,B 1 1 / 4 -in. NPT FEMALE CONNECTOR 2 2OPTIONAL STORAGE TANK N/A 1-in. NPT FEMALE CONNECTOR 2 2DANGEROnly qualified electrical personnel familiar with the con-struction and operation of this equipment and the hazardsinvolved should install, adjust, operate, or service thisequipment. Read and understand this manual and otherapplicable manuals in their entirety before proceeding.Failure to observe this precaution could result in severebodily injury or loss of life.WARNINGDC bus capacitors in the VFD retain hazardous voltagesafter input power has been disconnected. After disconnect-ing input power, wait 5 minutes for the DC bus capacitorsto discharge then check both the VFD DPI communica-tions interface board status LEDs and the VFD with a volt-meter to ensure the DC bus capacitors are dischargedbefore touching any internal components. Failure toobserve this precaution could result in severe bodily injuryor loss of life.DANGERThe drive can operate at and maintain zero speed. The useris responsible for assuring safe conditions for operatingpersonnel by providing suitable guards, audible or visualalarms, or other devices to indicate that the drive is operat-ing or may operate at or near zero speed. Failure to observethis precaution could result in severe bodily injury or lossof life.DANGERDo not install modification kits with power applied to thedrive. Disconnect and lockout incoming power beforeattempting such installation or removal. Failure to observethis precaution could result in severe bodily injury or lossof life.DANGERThe drive contains ESD (Electrostatic Discharge) sensitiveparts and assemblies. Static control precautions arerequired when installing, testing, servicing, or repairing thedrive. Erratic machine operation and damage to, or destruc-tion of, equipment can result if this procedure is notfollowed. Failure to observe this precaution could result inbodily injury.CAUTIONThe user is responsible for conforming with all applicablelocal, national and international codes. Failure to observethis precaution could result in damage to, or destruction of,the equipment.CAUTIONDo not attempt to start compressor (even for a rotationcheck) or apply test voltage of any kind while machine isunder dehydration vacuum. Motor insulation breakdownand serious damage may result.CAUTIONLow oil level may result if the oil pump is manually oper-ated for more than a few minutes when the chiller is notrunning. The oil reclaim system does not return oil to thesump when the compressor is de-energized.