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Summary of Contents for Trane 450
- Page 1 Installation Operation Maintenance RAUL Air Cooled Condensing Unit Sizes 190 – 260 – 300 – 350 – 400 450 – 500 – 600 – 700 – 800 To be used with the CH530 control module manual RAU-SVX01F-E4...
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Page 2: General Information
On arrival, inspect the unit before to good practice in the installation, signing the delivery note. start-up, operation, and maintenance by the user, of Trane RAUL. They do Reception in France only: not contain full service procedures In case of visible damage: The... -
Page 3: Maintenance Contract
The Global Warming Potential of the period of time, the manufacturer refrigerant implemented in Trane has at your disposal a refrigeration Air Conditioning and Refrigeration and air conditioning service school. -
Page 4: Table Of Contents
Contents General information Installation Unit nameplate Installation instructions Handling Refrigerant lines Refrigerant charge Oil charge Electrical connections Temperature sensor Hot gas-bypass control (option) Capacity control modes General start-up Start-up Preparation Start-up Operation Control System Unit operations Week end shutdown Seasonal shutdown Seasonal start-up Maintenance Maintenance instructions... -
Page 5: Installation
- 4 pads for the sizes 190 to 300 result in high pressure cut-out. Unit nameplate - 6 pads for the sizes 350 to 800... -
Page 6: Refrigerant Lines
Installation Refrigerant lines Discharge lines Pressure tests. Leak detection Discharge lines should be calculated During operations, take the following to obtain the gas displacement precaution: speed in horizontal and vertical lines 1. Neither oxygen nor acethylene required to drive compressor oil. should be used instead of Determine diameter of discharge refrigerant and nitrogen to... -
Page 7: Refrigerant Charge
The check that the repair can withstand results have to be written on a start rated pressure. up record by the Trane engineer or the client’s specialist who has Refrigerant charge performed this start up. The quantity... - Page 8 Installation Table 3 - R407C General data RAU 190 RAU 260 RAU 300 RAU 350 RAU 400 RAU 450 RAU 500 RAU 600 RAU 700 RAU 800 R407C R407C R407C R407C R407C R407C R407C R407C R407C R407C Performances (1) Gross cooling capacity (1) (kW) 54.8...
- Page 9 Installation Table 4 - R134a General data RAU 190 RAU 260 RAU 300 RAU 350 RAU 400 RAU 450 RAU 500 RAU 600 RAU 700 RAU 800 R134a R134a R134a R134a R134a R134a R134a R134a R134a R134a Performances (1) Gross cooling capacity (1) (kW) 43.8...
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Page 10: Electrical Connections
The hot gas bypass option only will be formulated if a transformer, 1. The greatest care should be taken provides a relay contact needed not supplied by Trane, is installed when cutting through passages to initiate hot gas bypass on the inside the electric panel. -
Page 11: Capacity Control Modes
Installation Capacity control modes Functional description External capacity control (option) The hot gas bypass solenoid valve RAUL units support air temperature will be controlled by a normally open Optional replace air temperature control and external capacity control (NO) relay output. Energizing the control (optional), which are described solenoid will open the valve. -
Page 12: General Start-Up
500V DC megohmeter for maintenance access (See - Put the plexiglass supplied by which meets manufacturer’s submittals). Trane in front of the power specifications (minimum value - Check clearance around condenser terminal. 2 megohms). (See Submittals). - Page 13 - Excess oil in compressor can Normal value on standard unit damage the compressor. with R134a and all the fans Before adding oil, consult Trane operating should be 15 to 18°C. technician. Use only Trane With 407C, it should be 20 to 23°C.
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Page 14: Operation
Operation Control System Seasonal start-up The control is through the CH530 - Check operational set points and control module. performance. - Calibrate controls. - Check operation of all safety Unit operations devices. - Start-up the unit by pushing - Inspect contacts & tighten «auto»... -
Page 15: Maintenance
Maintenance Caution Monthly preventive visit The following maintenance - Please refer to specific Trane - Carry out leak test. instructions are part of maintenance documentation on oil, available - Oil test of acidity. operations required for this from your nearest Trane office. -
Page 16: Installation Checklist
Check available cooling charge (50% of rated installation load) o Check with other trades handling installation works Comments: ................................................................................................................................................................ Signature: ............Name ......................... Order N° ......................................Work site: ......................................Please return to your local Trane Service Office. RAU-SVX01F-E4... -
Page 17: Troubleshooting Guide
Troubleshooting guide These are simple diagnostic hints. If there is a breakdown, the Trane Service office should be contacted for confirmation and assistance. Problems symptoms Problem cause Action recommended A) The compressor does not start up Compressor terminals are live but motor does Motor burned out. - Page 18 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 19 Problems symptoms Problem cause Action recommended I) Suction pressure too high Compressor operates continuously. Excess cooling demand on evaporator. Check system. Suction duct abnormally cold. a) Expansion valve too far open. a) Check for superheat and check that expansion valve bulb is secure. b) Replace.
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Page 20: Performance Data
Performance Data Performance data is given for Ambient air temperature versus Dew temperature at evaporating pressure. Refer to point A on Figure 4. Figure 4 R407C Condensing Subcooling Liquid Pressure Liquid Vapour Vapour Evaporating Pressure Enthalpy Dew Temperature at Evaporating Pressure Dew Temperature at Condensing Pressure Bubble Temperature at Condensing Pressure Liquid Temperature at Condensing Pressure... - Page 21 Table 6 - Dew point temperature versus pressure for R134a Absolute Absolute Absolute Absolute Pressure Temp. Pressure Temp. Pressure Temp. Pressure Temp. (bar) (°C) (bar) (°C) (bar) (°C) (bar) (°C) -56,4 -2,2 21,6 27,0 81,2 -49,7 -1,2 24,2 28,0 82,9 -44,6 -0,3 26,7...
- Page 22 Notes RAU-SVX01F-E4...
- Page 23 Notes RAU-SVX01F-E4...
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Page 24: Rau-Svx01F-E4
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 specifications without notice.
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