Quantech QTC3040T

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Quantech Incorporated www.Quantech-HVAC.com Subject to change without notice. Printed in USA

Form QTC3-NM1 (1223)

Issue Date: December 19, 2023

Supersedes: QTC3-NM1 (1123)

Main Page

Conditioned-based maintenance4
Section 1: General chiller information and safety11
- Introduction11
- Warranty11
- Handling11
- Safety and quality12
- About this manual12
- Misuse of equipment12
Section 2: Product description15
- Introduction15
- General system description15
- Communications17
- Building automation system interface18
- Power panel18
- Accessories and options18
Section 3: Handling and storage33
- Delivery and storage34
- Inspection34
- Moving the chiller34
- Lifting weights36
- Lifting using lugs36
- Lifting using shackles36
Section 4: Installation37
- Installation checklist37
- Location and clearances37
- Spring isolators: optional38
- Compressor mounting38
- Chilled liquid piping38
- Pipework arrangement39
- Wiring39
- Relief valves40
- High pressure cutout40
- Single-point supply connection – terminal block, non-fused disconnect switch or circuit breaker41
Section 5: Technical data47
- Physical data QTC3041 to QTC3230, 60 Hz50
- Electrical data57
- Compressor heaters57
- Electrical notes72
- Weight distribution and isolator mounting positions106
- Clearances107
- Isolator locations108
- Isolator information111
Section 6: Commissioning117
- Preparation, with power off117
- Commissioning the pump VFD120
- Preparation, with power on120
- Determining proper oil levels124
Section 7: Unit controls129
- Introduction129
- IPU II and I/O boards129
- Transformer130
- Display130
- Keypad130
- Unit switch130
- Battery backup130
- Programming the number of compressors130
- Status key131
- Display/print keys140
- Entry keys148
- Setpoints keys149
- Schedule/advance day key150
- Program key152
- Unit keys158
- BACnet, Modbus, N2, and YORKTalk 2 communications166
Section 8: Unit operation171
- Capacity control171
- Suction pressure limit controls172
- Discharge pressure limit controls172
- Leaving chilled liquid control172
- Leaving chilled liquid control override to reduce cycling173
- Leaving chilled liquid system lead/lag and compressor sequencing174
- Return chilled liquid system lead/lag and compressor sequencing174
- Anti-recycle timer174
- Anti-Coincidence Timer174
- Evaporator pump control and Quantech hydro kit pump control174
- Evaporator heater control175
- Pumpdown control175
- Standard condenser fan control175
- VSD fan175
- Changing the switch point of the thermal dispersion flow switch175
- Load limiting179
- Compressor run status179
- Alarm status179
- Remote BAS/EMS temperature reset using a voltage or current signal180
Section 9: Service and troubleshooting181
- Clearing history buffers181
- Resetting system lockout faults181
- Service mode181
- Service mode, outputs181
- Service mode, chiller configuration182
- Service mode, analog and digital inputs182
- Control inputs/outputs183
- Checking inputs and outputs185
- Optional printer installation191
- Troubleshooting193
Section 10: Maintenance195
- Compressors195
- Condenser fan motors195
- Condenser round tube coils195
- Condenser MCHX195
- Microchannel coil cleaning195
- Operating parameters198
- On-board battery backup198
- Thermal dispersion flow switch198
- Brazed plate heat exchanger (evaporator) heater198
- Overall unit inspection198
- Temperature202
Figure 1: Unit components, front view21
- Figure 2: Unit components, side view22
- Figure 3: Power panel components23
- Figure 4: Power Panel and control components24
- Figure 5: Process and instrumentation diagram31
- Figure 6: Rigging and lifting label33
- Figure 7: Unit Rigging/Lifting35
- Figure 8: Lifting lugs36
- Figure 9: Chilled liquid system39
- Figure 10: Single-Point Supply Connection – Terminal Block, Non-Fused Disconnect Switch or Circuit Breaker41
- Figure 11: Control Wiring Inputs42
- Figure 12: Thermal Dispersion Flow Switch44
- Figure 13: Wiring of Thermal Dispersion Flow Switch44
- Figure 14: Control wiring outputs46
- Figure 15: Elementary Wiring Diagram76
- Figure 16: Elementary Wiring Diagram78
- Figure 17: Fan Wiring, Standard Air Flow80
- Figure 18: Fan Wiring, High Air Flow82
- Figure 19: Single and Dual Point Wiring Options84
- Figure 20: Pump Wiring85
- Figure 21: EEV Controller Elementary Diagram87
- Figure 22: Compressor Wiring88
- Figure 23: Power Options Connection Diagram90
- Figure 24: Power Panel92
- Figure 25: Micro Panel Connections94
- Figure 26: Four Fan Units Dimensions – 3040THE, 3050THE, 3055THE, 3060THE, 3079THE96
- Figure 27: Four Fan Units Dimensions – 3070TSE, 3075TSE, 3085TSE97
- Figure 28: Four Fan Units Dimensions – 3070TZJ98
- Figure 29: Five Fan Units Dimensions – 3090THE99
- Figure 30: Five Fan Units Dimensions – 3095TZJ100
- Figure 31: Six Fan Units Dimensions – 3095TSE, 3100THE, 3110TSE101
- Figure 32: Eight Fan Units Dimensions – 3120THE, 3125TSE, 3129THE, 3140TSE102
- Figure 33: Eight Fan Units Dimensions – 3140TZJ103
- Figure 34: Ten Fan Units Dimensions – 3160TSE, 3150THE, 3170THE104
- Figure 35: Twelve Fan Units Dimensions - 3205THE, 3225THE105
- Figure 36: Sample Printout Supplied in the Isolator Package and in the Chiller Panel Literature Packet106
- Figure 37: Unit Clearances – All Models107
- Figure 38: EEV IB-G Interface Board119
- Figure 39: Drive Display122
- Figure 40: Circuit breaker panel123
- Figure 41: Tandem Set124
- Figure 42: Trio Set124
- Figure 43: Status Key Messages Quick Reference List139
- Figure 44: Operation data143
- Figure 45: Setpoints Quick Reference List155
- Figure 46: Unit Keys Options Programming Quick Reference List165
- Figure 47: Micro Panel Connections167
- Figure 48: Leaving Water Temperature Control Example172
- Figure 49: Setpoint Adjust173
- Figure 50: Condenser Fan Locations176
- Figure 51: Microboard Layout184
- Figure 52: I/O Board Relay Contact Architecture188
- Figure 53: Printer to microboard electrical connections192
Table 1: Canadian Registration Numbers16
Table 2: Complete Pin number description25
Table 3: Chemical specification of water43
Table 4: Temperatures and Flows47
Table 5: Ethylene and Propylene Glycol Correction Factors49
Table 6: Physical data and nominal data50
Table 7: Micropanel Power Supply57
Table 8: Voltage Range57
Table 9: Pump Electrical Data 60 Hz58
Table 10: Transformer Load58
Table 11: Electrical data without pumps, R-410A59
Table 12: Electrical data without pumps R-454B65
Table 13: Wiring lugs70
Table 14: Drive programming parameters122
Table 15: QTC3 Fault and Inhibit Codes138
Table 16: Legend138
Table 17: Cooling Setpoint, Programmable Limits, and Defaults151
Table 18: Program key limits and default154
Table 19: Program key limits and default156
Table 20: Minimum, Maximum and Default Values167
Table 21: Values Required for BAS Communication168
Table 22: Real Time Error Numbers169
Table 23: Sample compressor staging for return water control173
Table 24: QTC3 Standard Condenser Fan Control Using Discharge Pressure Only (2, 3, or 4 Fans per System)177
Table 25: QTC3 Standard Condenser Fan Control Using Discharge Pressure Only (5 or 6 Fans per System)178
Table 26: Compressor Operation Load Limiting179
Table 27: I/O Digital Inputs183
Table 28: I/O Digital Outputs183
Table 29: I/O Analog Inputs183
Table 30: I/O Analog Outputs183
Table 31: Outdoor Air Sensor Temperature/Voltage/Correlation185
Table 32: Entering/Leaving Chilled Liquid Temp. Sensor, Temperature/Voltage Correlation186
Table 33: Pressure Transducers187
Table 34: Data logging to flash189
Table 35: Troubleshooting193
Table 36: Cleaning materials198
Table 37: Temperature conversion chart199
Table 38: R-410A pressure temperature chart200
Table 39: R-454B pressure temperature chart201
Table 40: SI-metric conversion202

Quantech QTC3040T

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