Trane EarthWise Purge Installation Instructions Manual Download Page 20 | Manualshive

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©2020 Trane

Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without
notice. We are committed to using environmentally conscious print practices.

Trane - by Trane Technologies (NYSE: TT), a global climate innovator - creates comfortable, energy
efficient indoor environments for commercial and residential applications. For more information,
please visit trane.com or tranetechnologies.com.

PRGF-SVN001B-EN

13 Aug 2020

Supersedes PRGF-SVN001A-EN (Nov 2018)

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Summary of Contents for EarthWise Purge

Page 1: ...nd servicing of heating ventilating and air conditioning equipment can be hazardous and requires specific knowledge and training Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment X39640653040...

Page 2: ...ment that is used in these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the applicable laws and follow them WARNING Proper Field Wiring and Grounding Required Failure to follow code could result in death or serious injury All field wiring MUST be performed by qualified pers...

Page 3: ...ent and the information in it are the property of Trane and may not be used or reproduced in whole or in part without written permission Trane reserves the right to revise this publication at any time and to make changes to its content without obligation to notify any person of such revision or change Trademarks All trademarks referenced in this document are the trademarks of their respective owne...

Page 4: ...ral 10 Purge Mounting Location 10 Mounting Procedure 11 Purge 11 Human Interface 11 Thermal Well 11 Electrical Connections 12 Power Wiring 12 Chiller RUN Signal 12 Remote Human Interface 12 Remote Fault Indication 15 Refrigerant Line Connections 15 General Recommendations 15 Purge Vapor Line Construction 15 Carbon Regeneration Line 15 Liquid Return Line 15 Refrigerant Line Installation Procedure 1...

Page 5: ... components and options for any specific unit P R G F A 1 1 1 A A 0 1 2 3 4 5 6 7 8 9 10 11 Digit 1 2 3 PRG Purge Digit 4 Development Sequence F EarthWise purge Digit 5 Enclosure Type A Standard Enclosure B NEMA4 style C NEMA4 style with Heresite Condensing Unit S Special Digit 6 Control Options 0 Without Power Supply 1 With Power Supply Digit 7 Control Interface 1 Purge Interface 0 Chiller Interf...

Page 6: ...e tags stickers and labels as well as the following instructions Unless specified otherwise disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized When necessary to work with live electrical components have a qualified lice...

Page 7: ... C ball valve 1 4 coupling 3 8 NPS tee 3 8 C ball valve 3 8 coupling 7 8 ftg x 5 8 C bushing 7 8 ftg x 7 8 elbow Coupling 5 8 C x 1 2 NPTE adapter 1 2 NPS elbow 5 8 ODS ball valve Conversion Package Inspection Before installing the new purge compare the data on the purge nameplate with the corresponding ordering and shipping information to verify that the proper conversion package was shipped If a...

Page 8: ...2 Purge mounting Figure 3 Human interface mounting units ordered with human interface only Figure 4 Filter drier assembly General Information 8 PRGF SVN001B EN 2 1 1 3 7 12 5 11 13 6 10 9 8 4 21 17 19 22 14 23 ...

Page 9: ...e purge tank refrigerant inlet line 6 Close the angle valve on the evaporator if present to isolate the purge tank liquid return line or carbon tank regeneration Purge Removal Procedure Disconnecting Electrical Connections Disconnect all electrical connections at the connection points provided in the existing purge unit control panel and in the chiller control panel Purge Water Connections Disconn...

Page 10: ...ation of the gravity liquid return a minimum pressure drop must exist between the chiller condenser and the purge Refer to Purge Vapor Line Construction p 15 If the unit is equipped with a heat recovery or an auxiliarycondenser refer to Auxiliary CondenserandHeatRecoveryUnits p 16 sectioninthis manual Important For proper purge unit operation the chiller condenser purge gas connection must include...

Page 11: ...e The human interface ships separate from the purge unit It can be removed and relocated elsewhere on the chiller or to another convenient location near the chiller See Figure 7 The Aftermarket purge requires the refrigerant type to be set manually through the human interface DynaView To change the refrigerant type in the human interface DynaView follow the steps below 1 Select the Settings tab 2 ...

Page 12: ...r the chiller is running The Dual High Voltage Input LLID looks for a 115 Vac potential difference across J2 2 and J2 1 to indicate the chiller is on This signal may be sourced from 3X1 4 and switched using a field supplied relay or this signal may come from the hour meter start counter or similar device that can provide 115 Vac whenever the chiller is on If the Chiller RUN Signal is sourced from ...

Page 13: ...Figure 8 EarthWise purge field wiring Installation PRGF SVN001B EN 13 See Figure 9 for a detailed view ...

Page 14: ...Figure 9 Detailed view of the EarthWise purge field wiring Figure 10 EarthWise purge connection diagram Installation 14 PRGF SVN001B EN ...

Page 15: ...sation in the line Theshutoffvalveprovidedonthechiller typically anangle or solenoid valve must be replaced with the 5 8 ball valve provided in the optional conversion kit The valve should be located as close to the condenser as possible Model CVHE and later vintage CVHB Trane chillers have 1 2 NPTconnections whichcaneasilybeconfiguredforthe 5 8 valve However Model PCV CV OCV LCV CVHA and early CV...

Page 16: ...e purge vapor line coupling into the condenser shell CAUTION Tube Damage To prevent condenser tube damage use extreme caution when enlarging outlet opening 4 Drill a 3 8 10 mm hole through the liquid line coupling into the condenser shell CAUTION Tube Damage Use extreme caution when drilling into condenser to avoid damage to internal tubes 5 Braze the 7 8 elbow into the coupling and the 5 8 reduce...

Page 17: ...or provides the pressure isolation that is needed to return liquid refrigerant to the evaporator Important The liquid refrigerant separator is not typically needed when the EarthWise purge is mounted on top of the chiller condenser and its refrigerant is returned to the chiller condenser in the normal prescribed manner Package contents Qty Description 1 Liquid Refrigerant Separator 2 1 4 20 x 0 75...

Page 18: ... liquid separator to an access valve on the chiller evaporator Maintain a minimum two inch per foot pitch toward the evaporator Maintenance Routinely check the purge moisture indicating sight glass and change the filter drier as necessary It is important to maintain the chiller s refrigerant charge in a dry condition Figure 15 Liquid separator mounting location preferred Figure 16 Liquid separator...

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Page 20: ...are committed to using environmentally conscious print practices Trane by Trane Technologies NYSE TT a global climate innovator creates comfortable energy efficient indoor environments for commercial and residential applications For more information please visit trane com or tranetechnologies com PRGF SVN001B EN 13 Aug 2020 Supersedes PRGF SVN001A EN Nov 2018 ...

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