Table of Contents
Related Manuals for Trane AquaStream 2 CGWN Series
Summary of Contents for Trane AquaStream 2 CGWN Series
- Page 1 Installation Operation Maintenance Indoor liquid chiller with integrated hydraulic module Water-cooled model CGWN and Condenserless model CCUN : 205 - 206 - 207 - 208 - 209 - 210 - 211 - 212 - 213 - 214 - 215 R410A CG-SVX06F-GB Original instructions...
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Page 2: Table Of Contents
Winter freeze protection Electrical connections Interconnection between CCUN and Remote Condenser Preparation for start-up General Start-up Start-up Operation Installation checklist Control and unit operation Weekly start up Weekend shutdown Seasonal shutdown Seasonal start-up Maintenance Maintenance Instructions Troubleshooting guide CG-SVX06F-GB © Trane 2016... -
Page 3: General Information
It may also be used Important notice: No shipping claims to alert against unsafe practices or will be accepted by TRANE if the for equipment or property-damage- above mentioned procedure is not only accidents. - Page 4 General information Warranty Training Warranty is based on the general To assist you in obtaining the best terms and conditions of the use of it and maintaining it in perfect manufacturer. The warranty is operating condition over a long void if the equipment is repaired period of time, the manufacturer or modified without the written has at your disposal a refrigeration...
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Page 5: Model Number Description
Model Number Description Digit 1 – Manufacturing location Digit 15 – Unit voltage E = Europe D = 400/50Hz/3ph Digit 2, 3, 4, 5 – Unit model Digit 16 – Minor Design Sequence CGWN = Water-cooled chiller Factory assigned CCUN = Condenserless water- cooled Digit 17-18 –... - Page 6 Model Number Description Digit 34 - Factory test Digit 49 – Communication card X = No final performances test X = Without B = Test A + Visual Inspection 1 = LCI-C E = Performance test without 2 = PIC customer 4 = BCI-C Digit 35 –...
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Page 7: General Data
General Data Table 1 - General data - CGWN/CCUN R410A Unit size Standard Efficiency Cooling mode Net Capacity (kW) 182.0 216.0 251.0 283.1 282.0 311.0 341.0 Evaporator water pressure drop (kPa) 57.6 59.0 55.6 42.4 41.8 49.8 Evaporator head pressure (kPa) available (6) Condenser water pressure drop... - Page 8 General Data Unit size Evaporator Number Brazed Brazed Brazed Brazed Brazed Brazed Brazed Brazed Brazed Brazed Brazed Type plate plate plate plate plate plate plate plate plate plate plate DP400- DP400- DP400- DP400- DP400- DP400- DP400- ACH502DQ- ACH502DQ- ACH502DQ- ACH502DQ- Standard Efficiency Model Water volume (total)
- Page 9 General Data Unit size Hydraulic Module / Conderser Side (Option low head) Pump Type 35 - 35 - 35 - 35 - 35 - 206 - 206 - 206 - 206 - Model high head -134 / 2.2 -134 / 2.2 135 / 3 135 / 3 135 / 3...
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Page 10: Installation
Unit Dimensions/ Weights for unit operating weights. Once in place, the unit must be level with 3 mm over its length and width. Trane is not responsible for equipment problems resulting from an improperly designed or constructed foundation. -
Page 11: Evaporator Piping
It is recommended that the services of a qualified water treatment specialist be engaged to determine what water treatment, if any, is required. Trane assumes no responsibility for equipment failures which result from untreated or improperly treated water, or saline or brackish water. - Page 12 If there is no strainer, reserve will be formulated by the Trane technician at the start- up of the unit. The strainer used must be able to stop all particles with a diameter greater than 1 mm.
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Page 13: Minimal Installation Water Content
Installation Minimal installation water Minimum water volume for content a comfort application The water volume is an important For comfort application we can parameter because it allows a allow water temperature fluctuation stable chilled water temperature and at part load. The parameter to avoids short cycle operation of the take into account is the minimum compressors. -
Page 14: Water Connections
Installation Water connections 2) Condenser side options • No hydraulic control Before making any connections, • With pump contactors to control a make sure the labeling for entering remote pump (single or dual) and leaving water corresponds to • With pump integrated hydraulic the submittals. -
Page 15: Refrigerant Line Connections
Installation Refrigerant line connections The model CCUN is part of the installation which is protected Piping at 44.5 bar for R410A. Maximum distances and refrigerant The party in charge of the supply of line diameters between units the condenser and of its refrigerant must be checked according to the piping is responsible of implementing configuration and system operating... - Page 16 Installation Table 3 - Recommended discharge line diameters for horizontal risers (Circuit 1) Leaving chilled water temperature (°C) Unit size CCUN 7/8” 1”1/8 1”3/8 CCUN 7/8” 1”1/8 1”3/8 CCUN 7/8” 1”1/8 1”3/8 CCUN 1”1/8 1”3/8 1”5/8 CCUN 1”1/8 1”3/8 1”5/8 CCUN 1”1/8 1”3/8...
- Page 17 Installation Table 5 - Recommended liquid line diameters for vertical or horizontal risers (Circuit 1) Leaving chilled water temperature (°C) Unit size CCUN 5/8” 7/8” 1”1/8 CCUN 5/8” 7/8” 1”1/8 CCUN 5/8” 7/8” 1”1/8 CCUN 7/8” 1”1/8 1”3/8 CCUN 7/8” 1”1/8 1”3/8 CCUN...
- Page 18 These operations have to be performed by a specialist. The results have to be written on a start up record by the Trane engineer or the client’s specialist who has performed this start up. The quantity of refrigerant and oil added are at the client’s charges.
- Page 19 Installation High pressure The party in charge of the supply of Pressure relief valve - CCUN the condenser and of its refrigerant The remote condenser must have a Above the maximum system piping is responsible of implementing service pressure equal to or higher refrigerant charge, it is recommended all the required protections to than the high service pressure.
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Page 20: Winter Freeze Protection
Installation Winter freeze protection CAUTION: - There is a risk of freeze-up of During negative ambient air the evaporator circuit due to temperature chilled water piping internal refrigerant migration if the must be fully insulated. Ensure that condenser circuit is maintained at a all safeties are taken to prevent frost low temperature (below 0°C) for a damage during negative ambient air... -
Page 21: Electrical Connections
Installation Electrical connections CAUTION: 1. Cabling must comply with local CAUTION: standards. The type and location 1. The greatest care should be taken of fuses must also comply with when cutting through passages standards. As a safety measure, and installing electric wiring. fuses should be visibly installed, Under no circumstances should close to the unit. - Page 22 Installation Figure 9 - CGWN and CCUN main power supply connection (1) (212-215) 1 = Power cable inlet 2 = Disconnect switch (1) shown here : CGWN. Components in same location on CCUN. CG-SVX06F-GB...
- Page 23 Installation When ordered, the outdoor air operation of the chiller. The wiring of temperature sensor and associated the sensor has to be performed with electronics are factory-mounted a 2 wires cable of 0.75 to 1.5 mm² and wired in the control panel of type H05WWF or equivalent.
- Page 24 Installation Figure 12 - CGWN and CCUN main power supply connection (212-215) 1Q10 Note: Check phase rotation prior to start compressor and make sure phase order is correct. Failure to do so may result on compressor damage. CG-SVX06F-GB...
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Page 25: Interconnection Between Ccun And Remote Condenser
Installation Interconnection condenser shall be connected directly to the terminal block for the optional between CCUN and Remote fan relay cards. Condenser CAUTION: The CCUN has the capability to Power supply to the outdoor fan control the fan staging of the remote relays shall not be provided from condenser if the option is taken. - Page 26 Installation Operating range Check also compressor suction superheat for being close to 5 or CAUTION: Maximum operating time 6°C for low chilled leaving water for low condensing water outlet temperature to minimize compressor is 1 minute. The compressor shall discharge temperature. For very high become noisy.
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Page 27: Preparation For Start-Up
The installer ground complies with standards must check all the following points and regulations in force before calling in the Trane Servicing • Check that unit voltage and Department to put the equipment into frequency supplied match rated... -
Page 28: General Start-Up
OFF for 3 minutes for a packaged • Put the plexiglass supplied by unit (CGWN) and after 10 minutes Trane in front of the power OFF time for a split unit (CCUN terminal with remote condenser). See •... - Page 29 General Start-up Electrical power wiring: Operating parameters statement • Check all the electrical terminals • Switch on main power supply are tight switch • Set-up compressors overload • Start the water pump(s) and check relays there is no cavitation • Set-up fan-motors overload relays •...
- Page 30 • Phase imbalance should not be available pressure. It must be greater than 2%. in accordance with Trane order • The voltage supplied to motors write-up. should be within 10% of the • superheat: difference between...
- Page 31 General Start-up Figure 16 - Standard and High Efficiency units evaporator pressure drop Evaporator Pressure drop without hydraulic module 1000 A=205 B=206 C=207 D=208-27HE E=209-210 F=211 G=212-213-214- H=205HE-206HE 1.00 10.00 100.00 EWFR : Evaporator Waterflow Rate EWPD : Evaporator Water Pressure Drop Figure 17 - Standard units condenser pressure drop Condenser Pressure drop without hydraulic module 1000...
- Page 32 General Start-up Figure 18 - Chiller available pressure - Evaporator side - Standard and High Efficiency units - Low head pressure - Single pump Evaporator Available pressure (Hydraulic module option low head) Single Pump A=205 B=206 C=207 D=208 E=209 F=210 G=211 H=212 I=213...
- Page 33 General Start-up Figure 20 - Chiller available pressure - evaporator side - Standard and High Efficiency units - High head pressure - Single pump Evaporator Available pressure (Hydraulic module option high head) Single Pump A=205 B=206 C=207 D=208 E=209 F=210 G=211 H=212 I=213...
- Page 34 General Start-up Figure 22 - Chiller available pressure - condenser side - Standard and High Efficiency units - Low head pressure Condenser Available pressure low head (Hydraulic module option) A=205 B=206 C=207 D=208 E=209 F=210 G=211 H=212 I=213 J=214 K=215 L=205 HE M=206 HE 0.00...
- Page 35 General Start-up When ethylene glycol is added in the chilled water circuit the following glycol concentration has to be taken in account. Figure 24 - Ethylene Glycol recommended concentration LWT (°C) LWT: Lowest water temperature CAUTION! Loading concentrated glycol in the water loop at the suction side of the pump is prohibited.
- Page 36 Trane sales representative. A relief valve is located at pump suction limiting water circuit pressure at 3 bar. Nitrogen pressure inside of the...
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Page 37: Operation
Check that electrical connections are in accordance with information on manufacturer’s identification plate Check direction of rotation using phasemeter Comments ………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………… Signature:…………………………………………………………………….Name:…………………………………...………………… Order N°: …………………………………………………………………………………………………………………………………… Work site: …………………………………………………………………………………………………………………………………… Please return to your local Trane Service Office CG-SVX06F-GB... -
Page 38: Control And Unit Operation
• If the unit needs to be shut down drained. for a short period of time, stop the unit following procedure described Trane does not recommend draining in the CGWN-CCUN User Manual the unit, due to the fact that it (See “Clock” menu) increases tube corrosion. -
Page 39: Seasonal Start-Up
Operation Seasonal start-up • Check water flows and interlocks. • Check Ethylene glycol concentration in the chilled water circuit if glycol presence is required • Check operational set points and performance • Calibrate controls • Check operation of all safety devices •... -
Page 40: Maintenance
Maintenance Maintenance Instructions Inspection visit after the first 500 hours of operation from unit The following maintenance start up instructions are part of maintenance • Carry out oil analysis operations required for this • Carry out leak test equipment. A qualified technician •... - Page 41 Maintenance Annual preventive visit CAUTION: • Check water flows and interlocks • Please refer to specific Trane documentation on oil, available • Check expansion tank pressure from your nearest Trane office. • Check glycol concentration in Oils recommended by Trane...
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Page 42: Troubleshooting Guide
Check thermal insulation and air-tightness of areas requiring air-conditioning. E) Loss of oil in compressor Oil level too low in indicator. Not enough oil. Contact Trane office before to order oil Gradual fall in oil level. Filter drier clogged. Replace filter drier. Suction line too cold. - Page 43 Maintenance F) Compressor noisy Compressor knocks. Components broken in compressor. Change compressor. a) Check superheat setting and fixing of expansion valve a) Uneven liquid flow. Suction duct abnormally cold. bulb. b) Expansion valve locked in open position. b) Repair or replace. G) Insufficient cooling capacity Thermostatic expansion valve “whistles”.
- Page 44 HVAC systems, comprehensive building services and parts. For more information visit www.Trane.com Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifi cations without notice. We are committed to using environmentally ©...