Installation Electrical Information Water-Cooled CenTraVac™ With CH530 X39640647040 CVHE-SVN03D-EN
Warnings and Cautions Notice that warnings and cautions appear at appropriate intervals throughout this manual. Warnings are provided to alert manufactures, designers, installers, servicers, and installing contractors to potential hazards that could result in personal injury or death, while cautions are designed to alert personnel to conditions that could result in equipment damage. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.
Contents Warnings and Cautions ....................................................... 2 General Information............................................................. 4 Trane Supplied Remote Starter........................................... 5 Customer Supplied Remote Starter ................................... 6 Power Supply ....................................................................... 8 PFCC ......................................................................................
General Information General Requirements Note: Unit-mounted starters are available as an option on most CVHE, CVHF, and CVHG units with wye delta, and solid-state starters, with nominal voltages of up to 600 volts and unit mounted medium voltage across-the-line starters.
Trane Supplied Remote Starter Table 1.
Customer Supplied Remote Starter Table 2.
Customer Supplied Remote Starter Table 3. Current transformer and potential transformer wire sizing tables for customer supplied starter to chiller unit control panel starter module 1A23 The maximum recommended wire length for secondary CT leads in a dual CT system are: Maximum Wire Length Secondary CT Leads Wire AWG (mm2) Feet Meters 8 (10) 1362.8 415.5 10 (6) 856.9 261.2 12 (4) 538.9 164.3 14 (2.5) 338.9 103.3 16 (1.5) 213.1 65.0 17 (1) 169.1 51.5 18 (0.75) 134.1 40.9 20 (0.5) 84.3 25.7 Note: 1.
Power Supply Power Supply Wiring CAUTION Use Copper Conductors Only! To assure that power supply wiring to the starter panel is properly installed and connected, review and follow the guidelines outlined below. Unit terminals are not designed to accept other types of conductors. Failure to use copper conductors may result in equipment damage.
PFCC Optional PFCCs Power factor correction capacitors (PFCCs) are designed to provide power factor correction for the compressor motor. They are available as an option. Note: Remember that the PFCC nameplate voltage rating must be greater than or equal to the compressor voltage rating stamped on the unit nameplate. See Table 4 to determine what PFCC is appropriate for each compressor voltage application. CAUTION Motor Damage! Table 4.
PFCC Rule 1 Simultaneously disconnect capacitors and load from line power. If the capacitors are not switched offline when the load is disconnected, they continue to add capacitance to the electrical distribution system. A “leading” power factor—too much capacitance—may eventually develop. This overcorrection causes poor voltage regulation, i.e., voltage is high when the circuit is unloaded, then drops as loads are added. Figure 2.
PFCC Recommended Procedures for Discharging Capacitors Verifying Discharge of Capacitors Prior to performing any service on energized equipment, the proper Lockout-Tagout procedures must always be followed. Regardless of the equipment being serviced, the following steps must be taken: After following the proper lockouttagout procedure it is important to verify that all applicable capacitors are discharged and rendered safe.
Unit Mounted Starter Interconnecting Wiring Typical equipment room conduit layouts with and without unit mounted starters are shown in Figure 4 and Figure 5, respectively. Important: Keep in mind that the interconnecting wiring between the starter panel, compressor and UCP control panel is factory-installed with unit-mounted starters but must be field-installed when a remote mounted starter is used. Figure 4.
Remote Starter Figure 5. Typical equipment room layout with remote-mounted Wye-Delta starter Line Side Power Wiring Remotemounted Starter Lead Power Wiring IPC Circuit Conduit <30V See Note 3 115V Control Conduit See Note 2 Motor Terminal Box Notes: 1. Refer to the unit field connection diagram for approximate UCP knockout locations. 2. 115-volt conduit must enter the higher than 30 Vdc Class I portion of the unit control panel. 3.
Remote Starter Starter to Motor (Remote-Mounted Starters Only) 2 A terminal clamp with a 3/8” bolt is provided on each motor terminal stud; use the factorsupplied Belleville washers on the wire lug connections. Figure 6 illustrates the juncture between a motor terminal stud and terminal clamp. Ground Wire Terminal Lugs Ground wire lugs are provided in the motor terminal box and in the starter panel. 3 Tighten each bolt to 24 footpounds.
Remote Starter CAUTION Component Damage! 5 For UCP IPC shielded twisted pair wiring, the shield should be grounded on one end only at UCP at 1X1-G. The other end should be un-terminated and taped back on the cable sheath to prevent any contact between shield and ground. (1000 ft. max) 6 Oil Pump Interlock - All starters must provide an interlock (N.O.) contact with the chiller oil pump connected to the UCP at Terminals 1A7-2-4 and 1A7-J2-2 (14 ga.
Motor Lugs Figure 6.
Field Control Panel Signal Wiring Table 5. Standard Control Circuits: UCP Control Wiring (120 VAC) Unit Control Terminations Included in Factory Package Input or Output Type Chilled Water Flow Proving Input 1X1-5 to 1A6-J3-2 Std. Binary Input Condenser Water Flow Proving Input 1X1-6 to 1A6-J2-2 Std. Binary Input Chilled Water Pump Relay Output Condenser Water Pump Relay Output 1A5-J2- 4 to 6 1A5-J2-1 to 3 Std. Std.
Field Control Panel Signal Wiring UCP Electrical Specifications Following is a requirements list for the UCP in the control panel: Note that the control panel is designed to receive input from the secondary of a power transformer in the starter panel. 1 Nominal Voltage: 115/110 VAC, 60/50 Hz with operating range of 98 to 127 VAC, inclusive. 2 Maximum VA: 4K VA (40-amp fuse) for units with the refrigerant pump. 3 Power input wiring must be at least 6" (152 mm) from low voltage, less than 30V wiring.
Field Control Panel Signal Wiring The sensor probe lead wire between the sensor probe and the module can be separated by cutting the two wire probe lead leaving equal lengths of wire on each device; the sensor probe and the sensor module. Note this sensor and module are matched and must remain together or inaccuracy may occur. These wires can then be spliced to with two 14-18 AWG 600V wires of sufficient length to reach the desired outdoor location, maximum length 1000 feet (305 meters).
Field Control Panel Signal Wiring Figure 7. Standard Enclosure Control wiring (120 VAC) Low voltage entrances (less than 30 VAC) Note: UCP control wiring (120 VAC) must not be routed with low voltage circuits (less than 30 VAC). Conduit access holes are furnished in the top of the unit control panel. Use the left holes for low voltage wiring, and use center and right hand holes for control (120 VAC) wiring.
Field Control Panel Signal Wiring Figure 8.
Field Control Panel Signal Wiring Figure 9.
Wiring Drawings Schematic Wiring Drawings The following pages consist of typical wiring drawings for an CVHE, CVHF or CVHG chiller. However, please refer to the submittals and drawings that actually shipped with the unit. Refer to the chiller operation and maintenance manual for an example of a typical sequence of operation for a Unit Mounted Wye-Delta Starter. In the starter drawings, shown in this manual, all starter variables are the same in the Sequence of Operation except the Maximum Acceleration Time.
Wiring Drawings 2309-7945 Unit mounted wye-delta starter with optional GRDF and PFCC, without optional CPTR 24 CVHE-SVN03D-EN
Wiring Drawings 2309-7945 (Con’t) Unit mounted wye-delta starter with optional GRDF and PFCC, without optional CPTR CVHE-SVN03D-EN 25
Wiring Drawings 2309-7962 Unit mounted solid state starter with optional GRDF and PFCC, without optional CPTR 26 CVHE-SVN03D-EN
Wiring Drawings 2309-7962 (Con’t) Unit mounted solid state starter with optional GRDF and PFCC, without optional CPTR CVHE-SVN03D-EN 27
Wiring Drawings 2309-7996 Unit mounted across the line starter standard 3-lead motor connection with optional GRDF and PFCC, without optionaL CPTR 28 CVHE-SVN03D-EN
Wiring Drawings 2309-7996 (Con’t) Unit mounted across the line starter standard 3-lead motor connection with optional GRDF and PFCC, without optionaL CPTR CVHE-SVN03D-EN 29
Wiring Drawings 2309-8033 Unit mounted adaptive frequency drive 405-608A LiquiFlo 2, Frame 3 30 CVHE-SVN03D-EN
Wiring Drawings 2309-8033 (Con’t) Unit mounted adaptive frequency drive 405-608A LiquiFlo 2, Frame 3 CVHE-SVN03D-EN 31
Wiring Drawings 2309-8034 Unit mounted adaptive frequency drive 810-1210A LiquiFlo 2, Frame 4 32 CVHE-SVN03D-EN
Wiring Drawings 2309-8034 (Con’t) Unit mounted adaptive frequency drive 810-1210A LiquiFlo 2, Frame 4 CVHE-SVN03D-EN 33
Wiring Drawings 2309-7974 Unit mounted auto-transformer starter standard 3-lead motor connection with optional GRDF and PFCC, without optional CPTR 34 CVHE-SVN03D-EN
Wiring Drawings 2309-7974 (Con’t) Unit mounted auto-transformer starter standard 3-lead motor connection with optional GRDF and PFCC, without optional CPTR CVHE-SVN03D-EN 35
Wiring Drawings 2309-7985 Unit mounted primary reactor starter standard 3-lead motor connection with optional GRDF and PFCC, without optional CPTR 36 CVHE-SVN03D-EN
Wiring Drawings 2309-7985 (Con’t) Unit mounted primary reactor starter standard 3-lead motor connection with optional GRDF and PFCC, without optional CPTR CVHE-SVN03D-EN 37
Wiring Drawings 2309-7952 Remote mounted wye-delta starter with optional GRDF and PFCC, without optional CPTR 38 CVHE-SVN03D-EN
Wiring Drawings 2309-7952 (Con’t) Remote mounted wye-delta starter with optional GRDF and PFCC, without optional CPTR CVHE-SVN03D-EN 39
Wiring Drawings 2309-7960 Remote mounted solid state starter with optional GRDF and PFCC, without optional CPTR 40 CVHE-SVN03D-EN
Wiring Drawings 2309-7960 (Con’t) Remote mounted solid state starter with optional GRDF and PFCC, without optional CPTR CVHE-SVN03D-EN 41
Wiring Drawings 2309-7994 Remote mounted across the line starter standard 3-lead motor connection with optional GRDF and PFCC, without optional CPTR 42 CVHE-SVN03D-EN
Wiring Drawings 2309-7994 (Con’t) Remote mounted across the line starter standard 3-lead motor connection with optional GRDF and PFCC, without optional CPTR CVHE-SVN03D-EN 43
Wiring Drawings 2309-7983 Remote mounted primary reactor starter standard 3-lead motor connection with optional GRDF and PFCC, without optional CPTR 44 CVHE-SVN03D-EN
Wiring Drawings 2309-7983 (Con’t) Remote mounted primary reactor starter standard 3-lead motor connection with optional GRDF and PFCC, without optional CPTR CVHE-SVN03D-EN 45
Wiring Drawings 2309-7972 Remote Mounted Auto-transformer Starter 46 CVHE-SVN03D-EN
Wiring Drawings 2309-7972 (Con’t) Remote Mounted Auto-transformer Starter CVHE-SVN03D-EN 47
Wiring Drawings 2309-7998 Customer supplied wye-delta starter standard chiller without optional CPTR 48 CVHE-SVN03D-EN
Wiring Drawings 2309-7998 (Con’t) Customer supplied wye-delta starter standard chiller without optional CPTR CVHE-SVN03D-EN 49
Wiring Drawings 2309-8012 Customer supplied auto-transformer or primary reactor starter standard 3-lead motor connection without optional CPTR 50 CVHE-SVN03D-EN
Wiring Drawings 2309-8012 (Con’t) Customer supplied auto-transformer or primary reactor starter standard 3-lead motor connection without optional CPTR CVHE-SVN03D-EN 51
Wiring Drawings 2309-8022 Customer supplied across the line starter standard 3-lead motor connection without optional CPTR 52 CVHE-SVN03D-EN
Wiring Drawings 2309-8022 (Con’t) Customer supplied across the line starter standard 3-lead motor connection without optional CPTR CVHE-SVN03D-EN 53
Wiring Drawings 2309-8002 Customer supplied solid state starter standard chiller without optional CPTR 54 CVHE-SVN03D-EN
Wiring Drawings 2309-8002 (Con’t) Customer supplied solid state starter standard chiller without optional CPTR CVHE-SVN03D-EN 55
Wiring Drawings 2309-8041 Factory installed standard, NEMA 4 or industrial earthwise purge 56 CVHE-SVN03D-EN
Wiring Drawings 2309-8041 (Con’t) Factory installed standard, NEMA 4 or industrial earthwise purge CVHE-SVN03D-EN 57
Wiring Drawings 2309-8036 Unit controls without optional CPTR 58 CVHE-SVN03D-EN
Wiring Drawings 2309-8036 (Con’t) Unit controls without optional CPTR CVHE-SVN03D-EN 59
Wiring Drawings 2309-8039 System controls with optional HGBP or FRCL 60 CVHE-SVN03D-EN
Wiring Drawings 2309-8039 (Con’t) System controls with optional HGBP or FRCL CVHE-SVN03D-EN 61
Wiring Drawings 2309-8043 Optional controls 62 CVHE-SVN03D-EN
Wiring Drawings 2309-8043 (Con’t) Optional controls CVHE-SVN03D-EN 63
Wiring Drawings 2309-2178) Main unit control panel used with all low and medium voltage starters 64 CVHE-SVN03D-EN
Wiring Drawings 2309-2178 (Con’t) Main unit control panel used with all low and medium voltage starters CVHE-SVN03D-EN 65
Wiring Drawings 2309-2169 Trane supplied Wye-delta or solid state starter 66 CVHE-SVN03D-EN
Wiring Drawings 2309-2169 (Con’t) Trane supplied Wye-delta or solid state starter CVHE-SVN03D-EN 67
Wiring Drawings 2309-2171 Trane supplied auto-transformer, primary reactor or across the line starter 68 CVHE-SVN03D-EN
Wiring Drawings 2309-2171 (Con’t) Trane supplied auto-transformer, primary reactor or across the line starter CVHE-SVN03D-EN 69
Wiring Drawings 2309-2173 Customer supplied wye-delta or solid state starter 70 CVHE-SVN03D-EN
Wiring Drawings 2309-2173 (Con’t) Customer supplied wye-delta or solid state starter CVHE-SVN03D-EN 71
Wiring Drawings 2309-2175 Customer supplied auto-transformer, primary reactor or across the line starter 72 CVHE-SVN03D-EN
Wiring Drawings 2309-2175 (Con’t) Customer supplied auto-transformer, primary reactor or across the line starter CVHE-SVN03D-EN 73
Wiring Drawings 2309-2177 Trane supplied LiquiFlo 2 adaptive frequency drive 74 CVHE-SVN03D-EN
Wiring Drawings 2309-2177 (Con’t) Trane supplied LiquiFlo 2 adaptive frequency drive CVHE-SVN03D-EN 75
Wiring Drawings 2309-2181 Unit mounted controls used with all starters and adaptive frequency drives 76 CVHE-SVN03D-EN
Wiring Drawings 2309-2181 (Con’t) Unit mounted controls used with all starters and adaptive frequency drives CVHE-SVN03D-EN 77
Wiring Drawings 2309-2182 CH530 schematic wiring diagram device descriptions 78 CVHE-SVN03D-EN
Wiring Drawings 2309-2182 (Con’t) CH530 schematic wiring diagram device descriptions CVHE-SVN03D-EN 79
Literature Order Number Trane A business of American Standard Companies www.trane.com For more information, contact your local Trane office or e-mail us at comfort@trane.com CVHE-SVN03D-EN Date March 2005 Supersedes CVHE-SVN03C-EN Stocking Location La Crosse Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
