Related Manuals for KAESER TD 76
Summary of Contents for KAESER TD 76
- Page 1 SERVICE MANUAL Refrigerated Dryer Model: TD 76 GL---Nr.: 1_8036_10030 ---00 01 Serial No.: ..........
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Page 3: Table Of Contents
Table of Contents Chapter --- Page Technical Specification ......... 1 --- 1 Refrigerated Dryer . - Page 4 Table of Contents Chapter --- Page Preparation For Initial Start Up ........7 --- 17 Points to be Observed before Start Up .
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Page 5: Technical Specification
... 3000 ft. (for all elevations above please contact authorized KAESER distributor) Min. ambient temperature ...... -
Page 6: Electrical Connection
Technical Specification Electrical Connection Main voltage ........575 V ±... - Page 7 Technical Specification 1 --- 3...
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Page 8: Safety Regulations
Safety Safety Regulations Read this service manual very carefully and observe all cautionary references before the initial start of this refrigerated dryer and before carrying out any maintenance on the unit. Explanation of Symbols and References This symbol is placed before all safety references where there is dan- ger to life and limb. -
Page 9: Refrigerant
Signs and labels of reference may not be removed or rendered un- readable. Attention! Any alterations or reconstruction carried out without the prior written authorization of KAESER COMPRESSORS Inc. will invalidate the war- ranty. Refrigerant Initial startup of and maintenance work on the refrigerant circuit may only be carried out by persons who have been trained in the safety concepts of refrigeration engineering. -
Page 10: First Aid After Contact With Refrigerant
Rinse immediately with open eyelids and plenty of running water for at least 10 min- utes and seek medical advice if pain persists. Spare Parts The use of KAESER original parts guarantees safe and reliable operation of the refrigerated dryer. Environmental Protection... -
Page 11: General
General General The service manual must always be available for use at the location of the refrigerated dryer. Proper use The refrigerated dryer is intended solely for drying compressed air. Any other use outside of this purpose is considered improper. The manufacturer cannot accept liability for any damage caused by improper use;... -
Page 12: Transport
Transport Transport Transport Instructions Attention! Under no circumstances lift the refrigerated dryer with the compressed air inlet and outlet connections or lay the refrigerated dryer on its side. Serious damage can result from such treatment of the refrigerated dryer. To prevent damage to the panelling of the refrigerated dryer always use a jack lift or a forklift truck for transport. -
Page 13: Construction And Operation
Construction and Operation Construction and Operation Items referred to in ( ) correspond with the items in the Pipe and Instrument Flow Diagram (see chapter 5.6). Construction The main component of the refrigerated dryer comprises a combined heat exchanger (heat transmitter). -
Page 14: Eco
Construction and Operation The high pressure liquid is then forced through a capillary tube (7). By forcing the refriger- ant through this restriction, the refrigerant becomes a low pressure liquid. The low pres- sure, liquid refrigerant enters the evaporator (2) where heat from the compressed air is transferred to the refrigerant. -
Page 15: Functional Check
Construction and Operation 3 LED flashing continuously: a fault exists 8 Operational status --- light emitting diode 9 TEST pushbutton (condensate drain) 5.4.4 Functional check Check the function of the ECO ---DRAIN by pressing the TEST pushbutton (9). The ECO --- DRAIN will switch to the discharge mode every 2 to 3 seconds as long as the button is de- pressed. - Page 16 Construction and Operation 5 --- 12...
- Page 17 Construction and Operation 5 --- 13...
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Page 18: Installation
B Cooling air outlet Attention! Installing of inlet and/or exhaust air ducting without prior written ap- proval from of KAESER COMPRESSORS Inc. is not permitted. Compressed Air Connection Attention! Use flexible connecting pipes at the compressed air inlet and dis- charge to ensure vibration isolation, prevent strain on piping connec- tions and allow easy installation. -
Page 19: Condensate Drain Connection
Installation Shut--- off valves: All power driven systems must be equipped with a main stop system for all forms of energy feed, the operation of which determines the start and stop of the energy supply to the system. The compressed air inlet and outlet pipework must be provided with shut off arrangements (e.g. -
Page 20: Electrical Connection
Installation Electrical Connection The main power supply and overcurrent protection must be installed by a qualified electrician in accordance with NEC, OSHA and any appli- cable local codes. For fuse and wire recommendations, see chapter 1.6. The refrigerated dryer is delivered completely wired, ready for connection to the power supply.This connection must be made as detailed in the electrical diagram (see chapter 11.1). -
Page 21: Preparation For Initial Start Up
Attention! The internal components of the refrigerated dryer are factory adjusted for correct operation. Adjustments may not be made to these compo- nents without prior written consultation with KAESER Compressors Inc. Points to be Observed before Switching On: NON --- OBSERVANCE OF THESE OR OTHER REFERENCES (WARNING;... -
Page 22: Ready For Operation
Initial Start-up Ready for Operation Attention! Do not start the refrigerated dryer until completing the following: The refrigerated dryer is installed according to the conditions stated in chapter 6. All electrical connections, air piping and condensate lines are correctly connected and properly tightened. -
Page 23: Operation
Operation Operation During operation of the refrigerated dryer, condensate is separated from the compressed air. The condensate must be drained and collected in a suitable container. It must be disposed of according to Federal and local environmental codes. Collect the accumulated condensate in a container and dispose of properly. Instrument Panel Main switch Indicator --- refrigerant compressor ON... -
Page 24: Starting The Refrigerated Dryer
Operation Explanation of the colored segment scale of the pressure dew point indication: (suction pressure gauge) Blue --- white range (low suction pressure) results in too low a pressure dewpoint due --- Evaporator temperature too low (evaporator freeze---up) --- Dryer too large or very low air demand. Refer to chapter 1.4 Green range (normal suction pressure) results in a normal pressure dew point. -
Page 25: Stopping The Refrigerated Dryer
Operation If the control lamp (2) does not extinguish after approximately 15 min- utes then a fault is apparent (see chapter 8.4.3). Attention! Do not open the compressed air shut--- off devices (inlet/outlet) until the control lamp (2) is extinguished. Open the shut ---off valve of the compressed air inlet slowly (admission of the compressed air). -
Page 26: Trouble Shooting
Refrigerated dryer iced up on the air Switch off the dryer until the air system side. has thawed. If the system ices up again after starting again, refer to authorized KAESER distributor. 8.4.3 Pressure dew point too high Possible fault: Remedy: Ambient temperature too high. -
Page 27: High Compressed Air Losses
The safety pressure switch shuts down the refrigerated dryer Possible fault: Remedy: Ambient temperature too high. Check the technical data, see chapter 1.2. Condenser surface (refrigerant lique- See maintenance instructions fier) contaminated. chapter 9.2.2. Defective condenser fan motor. Refer to authorized KAESER distrib- utor. 8 --- 23... -
Page 28: Maintenance
Maintenance Maintenance Maintenance Instructions: Before starting work, follow the procedure below to ensure the unit is not started or energized while maintenance work is being performed: Work on the electrical equipment of the refrigerated dryer may only be carried out by a qualified electrician or trained personnel under the supervision of a qualified electrician according to local codes. -
Page 29: Cleaning The Condenser
Maintenance Escaping compressed air and/or refrigerant can cause injury to per- sonnel and lead to damage to the dryer. Check all pipework, hoses and screwed fittings for leakage every two to three months and carry out a visual check for any external damage. Correct any faults immediately! The refrigerant contained in the refrigerating system may not be vented to the open air. -
Page 30: Cleaning The Eco
Outlet hose of the ECO ---DRAIN is blocked. If necessary, clean or replace the outlet drain hose. Diaphragm valve is clogged. See chapter 9.2.5. Solenoid coil is defective. Contact authorized KAESER distributor. Screw on the left ---hand side panel. ¡ 9.2.5 Cleaning the ECO --- DRAIN Clean the condensate drain monthly, or more frequently depending on the degree of con- tamination of the compressed air. - Page 31 Maintenance 1 Cross ---head screws, M5 x 2.5 O Ring, 28 x 1.5 2 Diaphragm Thrust spring for valve piston 3 O Ring, 6 x 1.5 Valve piston 4 Diaphragm seat Housing 5 Thrust spring for diaphragm Top cover 6 Diaphragm cover Items in ( ) refer to items detailed in the previous figures.
- Page 32 Maintenance Reassembly of the ECO --- DRAIN: Attention! It is recommended that parts subject to wear, such as the diaphragm, valve piston and O rings are renewed for reasons of safety and relia- bility. Check the diaphragm (2), the existence and correct seating of the O rings (3) and (7) on the diaphragm seat (4) and diaphragm cover (6).
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Page 33: Spare Parts And After Sales Service
Spare Parts and After Sales Service Spare Parts and After Sales Service Provide the following details for all queries and spare parts orders: (see also the name plate) Refrigerated dryer, model: ....... . Serial number: . -
Page 34: Wiring Diagram
Appendix Appendix 11.1 Wiring Diagram 11 --- 30... -
Page 45: Maintenance Schedule
Appendix 11.2 Maintenance Schedule Refrigerated dryer, model: Serial number: Date Description of work Operating hours Signature 11 --- 41...
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