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Summary of Contents for Trane CONQUEST CGAX 015
- Page 1 Installation Operation Maintenance CGAX/CXAX 015 - 060 Air-cooled scroll chillers and heat pumps 43-164 kW CG-SVX027D-GB Original instructions...
- Page 2 *absolute service pressure: min 1 bar/max 11 bars Accessories - Hot water coil: *water temperature: min. +2° C/max. 100° C Operation ......................45 *absolute service pressure: min 1 bar/max 11 bars Maintenance ....................46 Troubleshooting Guide ..................51 CG-SVX027D-GB UNT-PRC002-GB © 2019 Trane...
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Page 3: General Information
Specify any visible damage on the delivery note, by the user, of Trane CGAX chillers or CXAX heat pumps. and send a registered letter of protest to the last carrier Sound power levels They do not contain full service procedures necessary of the goods within 7 days of delivery. -
Page 4: Maintenance Contract
General Information Technical Data Maintenance contract It is strongly recommended that you sign a maintenance contract with your local Service Agency. This contract provides regular maintenance of your installation by a specialist in our equipment. Power supply (V/Ph/Hz) 230/1/50 Capacities Regular maintenance ensures that any malfunction is Cooling capacity on water (1) (kW) -
Page 5: Model Number Description
Model Number Description Digit 1-4 — Chiller Model Digit 18 — Freeze Protection (Factory-Installed Only) CGAX = Cooling-only unit X = Without freeze protection CXAX = Heat pump unit 2 = With freeze protection by heaters 3 = With freeze protection by pump activation Sound power levels Digit 5-7 —... - Page 6 Model Number Description Technical Data Digit 33 — Chiller Smart Sequencer Digit 44 — Literature language X = None B = Spanish C = German Digit 34 — Open for future options D = English E = French Power supply (V/Ph/Hz) 230/1/50 Capacities...
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Page 7: Unit Description
Unit Description Conquest chillers, CGAX, air cooled scroll compressor Figure 1 - Warning pictograms type liquid chillers and CXAX heat pumps, are designed for outdoor installation. Units can have one or two independent refrigerant circuits, two or more compressors per circuit. Unit are packaged with an Sound power levels evaporator made with a braze plate heat exchanger, and one or more condenser coils. -
Page 8: Pre-Installation
23. Rotate fans before starting unit to inspect for the contractors installation instruction. This checklist is potential audible and visual signs of rubbing. intended to be a guide for the Trane technician just prior Start unit to unit ‘start-up’. Many of the recommended checks and... -
Page 9: Installation Requirements And Contractor Responsibilities
Pre-Installation Installation requirements and contractor responsibilities A list of the contractor responsibilities typically Sound power levels associated with the unit installation process is provided. Trane factory Supplied Trane factory Supplied Field supplied Type of requirement Discharge Trane factory Installed Field Installed... -
Page 10: General Data
General Data Technical Data Table 1 - CGAX 015-036 General Data CGAX CGAX CGAX CGAX CGAX CGAX CGAX SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN Net Cooling Capacity (1) (kW) Total Power input in cooling (1) (kW) Unit electrical data (2) (3) (4) Short Circuit Unit Capacity (9) (kA) Power supply... - Page 11 General Data Table 1 - CGAX 015-036 General Data (continued) CGAX CGAX CGAX CGAX CGAX CGAX CGAX SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN Condenser Fan Quantity Diameter (mm) Sound power levels Fan / motor Type Propeller fan : Fixed speed AC motor / Variable speed - EC motor / HESP MAX SPEED Digit 12=2 or Digit 12=1 and Digit 41=2 Fan / motor Type EC motor / HESP MAX SPEED...
- Page 12 General Data Technical Data Table 1 - CGAX 039-060 General Data CGAX CGAX CGAX CGAX CGAX CGAX CGAX SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN Net Cooling Capacity (1) (kW) Total Power input in cooling (1) (kW) Unit electrical data (2) (3) (4) Short Circuit Unit Capacity (9) (kA) Power supply...
- Page 13 General Data Table 1 - CGAX 039-060 General Data (continued) CGAX CGAX CGAX CGAX CGAX CGAX CGAX SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN Condenser Fan Quantity Diameter (mm) Sound power levels Fan / motor Type Propeller fan : Fixed speed AC motor / Variable speed - EC motor / HESP MAX SPEED Digit 12=2 or Digit 12=1 and Digit 41=2 Fan / motor Type EC motor / HESP MAX SPEED...
- Page 14 General Data Technical Data Table 2 - CXAX 015-036 General Data CXAX CXAX CXAX CXAX CXAX CXAX CXAX SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN Net Cooling Capacity (1) (kW) Total Power input in cooling (1) (kW) Unit electrical data (2) (3) (4) Short Circuit Unit Capacity (9) (kA) Power Cable Cross Section (max)
- Page 15 General Data Table 2 - CXAX 015-036 General Data (continued) CXAX CXAX CXAX CXAX CXAX CXAX CXAX SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN Condenser Fan Quantity Diameter (mm) Sound power levels Fan / motor Type Propeller fan : Fixed speed AC motor / Variable speed - EC motor / HESP MAX SPEED Digit 12=2 or Digit 12=1 and Digit 41=2 Fan / motor Type EC motor / HESP MAX SPEED...
- Page 16 General Data Technical Data Table 2 - CXAX 039-060 General Data CXAX CXAX CXAX CXAX CXAX CXAX CXAX SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN Net Cooling Capacity (1) (kW) Total Power input in cooling (1) (kW) Unit electrical data (2) (3) (4) Short Circuit Unit Capacity (9) (kA) Power supply...
- Page 17 General Data Table 2 - CXAX 039-060 General Data (continued) CXAX CXAX CXAX CXAX CXAX CXAX CXAX SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN SE-SN Condenser Fan Quantity Diameter (mm) Sound power levels Fan / motor Type Propeller fan : Fixed speed AC motor / Variable speed - EC motor / HESP MAX SPEED Digit 12=2 or Digit 12=1 and Digit 41=2 Fan / motor Type EC motor / HESP MAX SPEED...
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Page 18: Installation - Mechanical
(4) Water entering/leaving temperature 90/70 °C, air inlet temperature 20 °C DB, Nominal air flow. be level with 3 mm over its length and width. Trane is not (5) A rectangular glass wool duct 1m50 long is placed on the blower.The measurement is taken in the room containing the blower unit. -
Page 19: Minimal Installation Water Content
If there is no strainer, reserve will be formulated by compressor. In order to avoid lubrication problem the Trane technician at the start-up of the unit. The on a scroll compressor it must run at least 2 minutes trainer used must be able to stop all particles with a 120 seconds) before it stops. - Page 20 Installation – Mechanical Technical Data Note: To estimate the biggest step, it is usually The minimum volume can be determined by using the following formula: more reliable to make a selection at lower ambient Volume = Cooling capacity x Time x highest capacity step temperature where efficiency is higher and compressors (%) / Specific heat / Dead band steps bigger.
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Page 21: Freeze Protection
Installation – Mechanical Freeze Protection Note: Water pump control and heater combination will protect the evaporator down to any ambient temperature If the unit is exposed to ambient temperatures below provided power is available to the pump and the 0°C, the chilled water system must be protected from controller. - Page 22 Installation – Mechanical Technical Data Figure 4 - LP setting vs. Leaving Water Temperature setpoint Power supply (V/Ph/Hz) 230/1/50 Capacities Cooling capacity on water (1) (kW) 18,8 30,1 Heating capacity on water (2) (kW) 11,9 18,9 20,9 38,2 Fan motor (type) 2 x direct drive centrifugal Fan power input (3)
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Page 23: Hydraulic Data
Hydraulic Data CGAX Unit without pump package (Pressure drop) 036 - 039 - 045 035 - 040 - 046 017 - 020 - 023 Sound power levels 052 - 060 026 - 030 Discharge Measurement conditions: Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m long) fixed to its discharge opening. - Page 24 Hydraulic Data Technical Data CXAX Unit without pump package (Pressure drop) 035 - 046 036 - 039 - 045 052 - 060 Power supply (V/Ph/Hz) 230/1/50 Capacities 015 - 017 020 - 023 - 026 - 030 Cooling capacity on water (1) (kW) 18,8 30,1...
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Page 25: Operating Map
Operating Map CGAX CXAX Minimum Starting Operating Ambient Minimum Starting Operating Ambient - Std Ambient unit = 5°C - Std Ambient unit - Low Ambient unit = -18°C Cooling mode = 5°C Sound power levels Maximum Ambient = 46°C Heating mode = -15°C Evaporator Outlet Temperature - Low Ambient unit Discharge... -
Page 26: Partial Heat Recovery
Partial Heat Recovery Technical Data Heat recovery option is made with a plate heat exchanger in series with the air-cooled condenser. This heat exchanger benefits the discharge gas superheat as well as a part of the condensing gas heat to be transferred to hot water system. - Page 27 Heat Pump alone cannot achieved customer requested capacity. this option is only available for Heat Pump units and is only enabled in heating mode. Trane supplies software control and does not propose any hardware. 3 digitals output are available (configurable for 1 to 3) and can be enabled or disabled. Heaters remain energized during defrost and start only when all the compressors are on.
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Page 28: Installation - Electrical
Installation – Electrical Technical Data General Recommendations Installer-Supplied Components When reviewing this manual keep in mind: Customer wiring interface connections are shown in the electrical schematics and connection diagrams that • All field-installed wiring must be in accordance with are shipped with the unit. The installer must provide the local regulations and CE directives and guidelines. - Page 29 Installation – Electrical Figure 8 - Power Entrance Sound power levels Discharge Measurement conditions: Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m long) fixed to its discharge opening. Power level in dB(A), per Hz frequency band Overall power Unit...
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Page 30: Electrical Data
Electrical Data Technical Data For electrical data details, refer to General Data tables for each unit configuration and size. - Maximum Power input (kW) - Unit rated amps (Max compr Fan+Control) - Unit start up amps (Starting Amps of the largest compr+RLA of 2nd compr+RLA of all fans+ control) - Compressor Power factor Power supply (V/Ph/Hz) -
Page 31: Control Power Supply
Electrical Data Control Power Supply Customer Options Note: it is highly recommendable to read this section Alarm and Status Relay Outputs (Programmable Relays) within the wiring diagrams, where the different A programmable relay concept provides for enunciation components mentioned here are referenced. of certain events or states of the chiller, selected Sound power levels from a list of likely needs, while only using physical... -
Page 32: External Auto/Stop
Electrical Data Technical Data External Auto/Stop Switching from heating to cooling will stop all running compressors. After a 10 second delay the 4-way If the unit requires external auto/stop function, the reversing valve will be switched into the cooling mode installer must provide leads from the remote contacts on direction and the unit will run based on the evaporator unit main controller 1A2 –... - Page 33 Electrical Data External Demand Limit Setpoint Unit auxiliary controller (1A4) shall accept either 0-20mA or 4-20mA signals. Each signal corresponds to an EDLS (EDLS) Option range with a minimum of 1 compressor and a maximum of all compressors. The following tables exist: Unit auxiliary controller (1A4) provides a means to Sound power levels limit the capacity of the chiller by limiting the number...
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Page 34: Communication Wiring
Communication Interface Options Technical Data Percent capacity output • Communication link wiring must be shielded, twisted pair wiring (Belden 8760 or equivalent), below table The controller provides an analog voltage output provides recommendation for wire size selection: (0-10 VDC) to communicate active unit capacity [%]. •... -
Page 35: Operating Principles
• Related interconnecting piping FWD 14 Refrigerant Cycle FWD 20 Refrigerant cycle is similar to other Trane Scroll compressor chillers. Conquest chillers use brazed plate evaporator and air-cooled condenser. Compressors Intake use suction gas cooled motors and an oil management... - Page 36 Operating Principles Technical Data This section describes the overall operating principle of the CGAX design (duplex cooling unit). Figure 9 - Example of Typical Refrigerant System Schematic & Oil Lube Circuit Schematic Power supply (V/Ph/Hz) 230/1/50 Capacities Cooling capacity on water (1) (kW) 18,8 30,1...
- Page 37 Operating Principles This section describes the overall operating principle of the CXAX design (Duplex Heating pump unit). Figure 10 - Example of Typical Refrigerant System Schematic & Oil Lube Circuit Schematic Sound power levels Discharge Measurement conditions: Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m long) fixed to its discharge opening.
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Page 38: Oil System
Operating Principles Technical Data Oil System The oil is efficiently separated inside the scroll compressor and will remain in the scroll compressor during all run cycles. Between 1-2% of the oil circulates around with the refrigerant. See on the compressor Power supply (V/Ph/Hz) 230/1/50... - Page 39 Operating Principles Figure 12 - Hydraulic Module water chart - unit with pump package Sound power levels Discharge Measurement conditions: Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m long) fixed to its discharge opening.
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Page 40: Variable Primary Flow
Variable Primary Flow Technical Data Impact on unit design : Add either differential pressure sensor or 2 water temperatures sensor. Pump selection remains unchanged. A variable speed drive to be added into the control box. 2 or 3 options of variable water flow : Power supply (V/Ph/Hz) 230/1/50... -
Page 41: General Start Up
The flow rates must fall between the correctly installed and ready to operate. The installer minimum and maximum values. Chilled water flow must check all the following points before calling in Trane rates below the minimum values will result in laminar Sound power levels... - Page 42 20,9 38,2 Fan motor (type) 2 x direct drive centrifugal • Check the isolation of the motors using a 500V • Put the plexiglass supplied by Trane in front of the Fan power input (3) (kW) 0,23 0,46 0,65 1,04 1,51 DC megohmeter which meets manufacturer’s...
- Page 43 Should this not work, consult Trane technician. FWD 20 • Excess oil in compressor can damage the compressor. Before adding oil, consult Trane technician. Use only Intake Trane products recommended. • The compressors must operate in a single direction of Measurement conditions: rotation.
- Page 44 Pre-Start Check List (Sample) Technical Data UNIT Check clearance around condenser Check clearance required for maintenance access Check type and position of the rubbers pads Power supply (V/Ph/Hz) 230/1/50 Check unit is level Capacities Cooling capacity on water (1) (kW) 18,8 30,1 CHILLED WATER CIRCUIT...
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Page 45: Operation
No diagnosis can be accurate • Do not put the general disconnect switches to with one of these recordsmissing off, except if the unit is drained. Trane does not Power level in dB(A), per Hz frequency band Overall power... -
Page 46: Maintenance Instructions
24 - 500 CAUTION! operator Not available for FWD30 and FWD45 • Refer to specific Trane documentation on oil, available Sound level (L/M/H speed) • Check and clean the strainer from your nearest Trane office. Oils recommended Sound pressure level (5) - Page 47 Refrigerant System Open Time Pump maintenance Pumps motor bearings and mechanical seals have Model CGAX/CXAX chillers use POE oil (Trane a designed life expectancy of 20000-25000 hours of recommended oil OIL 048E or OIL 023E) and therefore operation. For critical applications it might be necessary refrigerant system open time must be kept to a to change the components as a preventive measure.
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Page 48: Refrigerant Piping
Refrigerant Piping Evaporator Maintenance The compressor suction and discharge connections The Trane Model CGAX liquid chiller uses a brazed plate and piping are copper clad steel for easy brazing. In heat paddle (BPHE) evaporator with factory installed most instances, piping may be reused. If piping is not flow switch that is positioned in the evaporator water reusable, order the correct service parts. -
Page 49: Cleaning Procedures
If the leak is found to be within the tube area of the coil, a field repair kit (KIT16112) is available through your 2. Wear proper personal protection equipment such local Trane parts center. Because of the all-aluminum as a face shield, gloves and waterproof clothing. construction and aluminum’s high thermal expansion 3. -
Page 50: Water Pump Maintenance
Maintenance Technical Data Water pump maintenance WARNING! Before starting work on the pump, make sure that the power supply has been switched off and that it cannot be accidentally switched on. The internal pump parts are maintenance-free. It is important to keep the Power supply (V/Ph/Hz) 230/1/50... -
Page 51: Troubleshooting Guide
Troubleshooting Guide This troubleshooting guide is not a comprehensive analysis of the Scroll compressor refrigeration system. The aim is to give operators simple instructions on basic unit processes so that they have the technical knowledge to identify and bring defective operations to the notice of qualified technicians. Problems Symptoms Problem causes Action Recommended... - Page 52 Troubleshooting Guide Technical Data Problems Symptoms Problem causes Action Recommended Loss of oil in compressor ContactTraneofficebefore Oil level too low in indicator Not enough oil ordering oil Power supply (V/Ph/Hz) 230/1/50 Gradual fall in oil level Filter drier clogged Replacefilterdrier...
- Page 53 Notes Sound power levels Discharge Measurement conditions: Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m long) fixed to its discharge opening. Power level in dB(A), per Hz frequency band Overall power Unit speed...
- Page 54 Notes Technical Data Power supply (V/Ph/Hz) 230/1/50 Capacities Cooling capacity on water (1) (kW) 18,8 30,1 Heating capacity on water (2) (kW) 11,9 18,9 20,9 38,2 Fan motor (type) 2 x direct drive centrifugal Fan power input (3) (kW) 0,23 0,46 0,65 1,04...
- Page 55 Notes Sound power levels Discharge Measurement conditions: Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m long) fixed to its discharge opening. Power level in dB(A), per Hz frequency band Overall power Unit speed...
- Page 56 Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services and parts. For more information visit www.Trane.com...
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