Quantech QTC4 STYLE A Series Installation Operation & Maintenance page 10

FORM QTC4-NM1
ISSUE DATE: 4/2/2018
LIST OF FIGURES
FIGURE 1 - QTC4 Air-Cooled Screw Liquid Chiller with Variable Speed Drive ...................................................... 15
FIGURE 2 - Chiller Control System .........................................................................................................................16
FIGURE 3 - View of Control Center User Interface .................................................................................................18
FIGURE 4 - Lift Lug to remove unit from shipping container ...................................................................................24
FIGURE 5 - Accessory Lifting lugs ..........................................................................................................................24
FIGURE 6 - Acceptable Minimum Clearances Around / Between Unit(S) ............................................................... 36
FIGURE 7 - Pipework Arrangement ........................................................................................................................38
FIGURE 8 - Leaving Water Temperature Out of Range Suggested Layout ............................................................ 39
FIGURE 9 - Suggested Layout For Applications With Flow Rates Less Than The Evaporator
Minimum Allowable Flow Rate .............................................................................................................39
FIGURE 10 - Suggested Layout For Applications With A Flow Rate Greater Than The Evaporator
Maximum Allowable Flow Rate ..........................................................................................................39
FIGURE 11 - Victaulic Groove .................................................................................................................................40
FIGURE 12 - Flange Attachment .............................................................................................................................41
FIGURE 13 - Single Point Power Wiring .................................................................................................................44
FIGURE 14 - Dual Point Power Wiring ....................................................................................................................45
FIGURE 15 - Customer Control Connections .........................................................................................................46
FIGURE 16 - QTC4 Dimensions .............................................................................................................................76
FIGURE 17 - Keyboard and Display........................................................................................................................95
FIGURE 18 - New 331-03478-xxx Microboard ........................................................................................................99
FIGURE 19 - Control Board Connections for BAS Communications ....................................................................103
LIST OF TABLES
TABLE 1 - Unit Rigging ...........................................................................................................................................26
TABLE 2 - Minimum Evaporator Tube Removal Clearance ....................................................................................36
TABLE 3 - Evaporator Connections Dimensions ....................................................................................................40
TABLE 4 - Electrical Lug Data ................................................................................................................................47
TABLE 5 - Physical Data - Microchannel Coil .........................................................................................................58
TABLE 6 - Physical Data - Round Tube Coil ..........................................................................................................62
TABLE 7 - Optional One-Pass Evaporator ..............................................................................................................64
TABLE 8 - Standard Two-Pass, Rear Inlet/Outlet Evaporator ................................................................................68
TABLE 9 - Optional Three-Pass Rear Inlet/Front Outlet Evaporator ......................................................................72
TABLE 10 - Isolator Selection and Mounting Locations ..........................................................................................78
TABLE 11 - Values Required for BAS Communication .........................................................................................102
TABLE 12 - Real Time Error Numbers For BAS, SC-EQ or E-Link Communications Card .................................. 102
TABLE 13 - Native Communications Data Map ....................................................................................................104
TABLE 13 - Native Communications Data Map (CONT'D) ...................................................................................105
TABLE 14 - Operational and Fault / Inhibit Codes ................................................................................................106
TABLE 15 - Flash Card Update Error XXXXX ......................................................................................................107
TABLE 16 - Data Logging ....................................................................................................................................108
TABLE 17 - Low Differential Oil Pressure Cutout ................................................................................................. 112
TABLE 18 - Discharge Pressure Load Limiting/Unloading ................................................................................... 113
TABLE 19 - Suction Pressure Load Limiting/Unloading ........................................................................................ 113
TABLE 20 - Start Inhibit Sensor Thresholds ......................................................................................................... 114
TABLE 21 - Sensor Min/Max Outputs ...................................................................................................................122
TABLE 22 - Setpoint Limits ...................................................................................................................................133
TABLE 23 - Programmable Operating Parameters ...............................................................................................136
TABLE 24 - Printout Types ....................................................................................................................................144
TABLE 25 - Troubleshooting Guide ......................................................................................................................153
TABLE 26 - Temperature Input Voltage Sensor (Measured Signal To Shield at the Sensor) ............................... 156
TABLE 27 - Outside Air Temperature Sensor Input Voltage (Measured Signal To Shield at the Sensor) ............. 157
TABLE 28 - Pressure Transducer Output Voltage (Measured Signal To Return At The Transducer) ................... 158
TABLE 29 - Motor Temperature Sensor Resistance (Check At The Motor) .......................................................... 159
TABLE 30 - SI Metric Conversion .........................................................................................................................162
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