Trane CVHE Installation Manual
Water cooled centravac
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Also See for CVHE:
- Troubleshooting manual (128 pages) ,
- Installation, operation and maintenance manual (100 pages) ,
- Information manual (95 pages)
Related Manuals for Trane CVHE
Summary of Contents for Trane CVHE
- Page 1 Installation – Piping Information ™ Water Cooled CenTraVac Required Installation Information: CVHE-SVN01C-EN – General Information CVHE-SVN02D-EN – Piping Information CVHE-SVN03C-EN – Electrical Information CVHE-SVN02D-EN X39640646040...
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Page 2: Warnings And Cautions
– Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices. CAUTION – Indicates a situation that may result in equipment or property-damage-only accidents. © 2005 American Standard Inc. All rights reserved. CVHE-SVN02D-EN... -
Page 3: Table Of Contents
Water Box Locations Water Piping Circuits Water Piping Connections Grooved Pipe Coupling Flange-Connection Adapters Victaulic Gasket Installation Bolt-Tightening Sequence for Water Piping Connections Evaporator Water Box Covers EarthWise Purge Requirements Refrigerant Vent-Line Rupture Disc Vent Installation Unit Insulation Requirements CVHE-SVN02D-EN... - Page 4 Figure 3 – Typical Evaporator Water Piping Circuit ........10 Figure 4 – Typical Condenser Water Piping Circuits ........11 Figure 5 – Typical CVHE Grooved Pipe Connection ........12 Figure 6 – Customer Piping Alternatives for Water Connections ....13 Figure 7 –...
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Page 5: Overview
ASME. Follow ASME determine what water treatment, if (c) A heat-recovery condenser water guidelines or other applicable circuit, (optional); any, is required. Trane assumes no codes to assure proper relief responsibility for equipment failures valve installation. (d) An auxiliary condenser water... -
Page 6: Figure 1. Flow Switch Installation
Frequent cycling on these higher level diagnostic devices could cause excessive thermal and pressure cycling of unit components (O-rings, gaskets, sensors, motors, controls, etc.) resulting in premature failure. CVHE-SVN02D-EN... -
Page 7: Evaporator And Condenser Water Piping
Expenses that result from a failure to evaporator connections, arrange the follow this recommendation will not water piping so that the water supply be paid by Trane. enters the shell at the lower Water piping connection sizes are connection, and exits from the top identified in Tables 1, 2 and 3. -
Page 8: Figure 2. Standard Waterbox Connections
Water Piping Figure 2. Standard waterbox connections Note: Marine water boxes not shown. CVHE-SVN02D-EN... -
Page 9: Water Box Locations
Failure to do so could water box to enable attachment of a result in operating problems. 3/4" [19 mm] eyebolt (field supplied). Note: Whenever a CVHE, CVHF Condenser water boxes are and CVHG unit is equipped with an provided with 1/2" [13 mm] tapped... -
Page 10: Figure 3. Typical Evaporator Water Piping Circuit
1. Pressure Gauge 2. Thermometer(s) (If field supplied) 3. Union(s) or Flanged Connection(s) 4.1/2" [13 mm] NPT Couplings 5. Balancing Valve 6. Gate (Isolation) Valve(s) or Ball Valve(s) 7. Chilled Water Flow Switch (5S1) 8. Strainer 9. Evaporator Water Pump CVHE-SVN02D-EN... -
Page 11: Figure 4. Typical Condenser Water Piping Circuits
3. Some type of field-supplied temperature control device may be required to regulate the temperature of the heat-recovery condenser water circuit. For application recommendations, see Trane Application Manual, “AM-FND-8”, titled “Heat-Recovery Engineering Seminar”. 4. Install a bypass valve system to avoid circulating water through the auxiliary shell when the unit is shut down. -
Page 12: Figure 5. Typical Cvhe Grooved Pipe Connection
355.6 where required, and provide for any 355.6 other special requirements (i.e., Note: CDSZ =Condenser Shell Size; S = Short Shell, L = Long Shell, E = Extended Shell drainage, etc.). Figure 5. Typical CVHE grooved pipe connection CVHE-SVN02D-EN... -
Page 13: Figure 6. Customer Piping Alternatives For Water Connections
Table 3. Water piping connection components Customer Piping Connection Unit Model Unit Connection Type Victualic ™ Flanged CVHE and Flanged (Condenser 032-050 Trane provided No Adapter Required CVHG 150 psig and 1035 kPa non-marine only) Victaulic-to-Flange Adapter CVHE, CVHF Victaulic (All others) -
Page 14: Figure 7. Typical Shipping Location For Flange
Flange adapters are not 2. Install Gasket: Place gasket over provided for CVHE/F/G units with 300 pipe end, being sure gasket lip psig or 2068 kPa water boxes that does not overhang pipe end. See have 14"... -
Page 15: Figure 8. Typical Victaulic Flange Gasket Configuration
10.63 23.4 10.6 219.1 3/4 x 4-3/4 19 x 121 34.3 15.6 273.0 1 x 5-1 /4 25 x 133 15.25 48.3 21.9 323.9 1-1 /8 x 5-3/4 29 x 146 17.75 70.5 32.0 *Or equivalent supplied by others. CVHE-SVN02D-EN... -
Page 16: Table 6 - Flange Bolt Torque Recommendations
O-Ring Flat 3/8" 25 (34) 12-18 (16-24) 1 /2" 70 (95) 33-50 (45-68) 5/8" 150 (203) 70-90 (95-122) 3/4" 250 (339) 105-155 (142-210) Note: Torques provided in Ft/Lbs. (Newton/metres) Bolt size is determined by the diameter of bolt shank. CVHE-SVN02D-EN... -
Page 17: Figure 10 - Bolt Tightening Sequences For Water Piping Flange And Water Boxes
Water Piping Figure 10. Bolt rightening sequences for water piping flanges and water boxes Flanges with more than 24 bolts Evaporator Water Box Covers CVHE-SVN02D-EN... -
Page 18: Earthwise Purge Requirements
6. Using proper brazing techniques as per American Welding society (A.W.S.) braze the following four copper lines at the factory disassembly points: • Purge suction line (larger) • Purge liquid drain line • Regeneration line • High pressure cutout switch CVHE-SVN02D-EN... -
Page 19: Refrigerant Vent-Line
Torque applied to the outer pipe may result in damage to Purge Discharge Vent Line the rupture disc assembly. On CVHE, CVHF and CVHG units, the 3. Support the vent piping, use a purge discharge is factory-piped flexible connection to avoid downstream of the rupture disc on placing stress on the rupture disc. -
Page 20: Figure 11 - Rupture Disc Location, Cross Section Of Rupture Disc And Recommended Rupture Disc Relief Piping
Guidelines. 6. The discharge of the vent line outside should not be in the general vicinity of any fresh air intakes to the building. Any gas venting from the vent line should not be allowed to re-enter the building. CVHE-SVN02D-EN... -
Page 21: Figure 12. Arrangement For Rupture Disc Relief Piping
Vent Piping Figure 12. Arrangement for rupture disc relief piping Note: See below for Rupture Disk Dimensions. Rupture Disk Dimensions CVHE-SVN02D-EN... -
Page 22: Table 7 - "C" Values Used To Determine Rupture Disc Vent Line Sizes
Vent Piping Table 7. “C” values used to determine rupture disc vent line sizes – CVHE, CVHF and CVHG Evaporator Condenser “C” Values for Unit Components Size Size Rupture Evaporator Standard Economizer Short Long Auxiliary With (EVSZ) (CDSZ) Disc Condenser H.R. -
Page 23: Figure 13. Rupture Disc Vent Pipe Sizing
Figure 13. Rupture disc vent pipe sizing Note: This chart, provided as a reference, is based on ASHRAE Standard 15-2001. Vent line size is typically dicated by state or local code which may be different from ASHRAE Standard 15-2001 requirements. CVHE-SVN02D-EN... -
Page 24: Table 8 - Evaporator Insulation Requirements
Insulation Unit Insulation Requirements Table 8. CVHE, CVHF and CVHG evaporator insulation requirements Standard Unit Free Cooling Factory-installed insulation is EVSZ 3/4" [19 mm] 3/8" [9.5 mm] 3/4" [19 mm] 3/8" [9.5 mm] available as an option for all CVHE,... -
Page 25: Figure 14 - Recommended Areas For Unit Insulation
Insulation Figure 14. Recommended area for unit insulation CVHE-SVN02D-EN... - Page 28 A business of American Standard Companies www.trane.com Trane has a policy of continuous product and product data improvement and reserves the right to change For more information contact your local district office design and specifications without notice. Only qualified technicians should perform the installation and or e-mail us at comfort@trane.com...