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Troubleshooting
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Summary of Contents for Tecumseh Argus
- Page 1 Remote Condensing Unit Installation Instructions...
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Page 2: Table Of Contents
CU Wiring Diagrams ................ 18 REFRIGERANT FLOODING CHARGE ............ 9 Line Sizing ..................21 REFRIGERATION OILS ................9 ARGUS Nomenclature ..............30 Approved Hermetic Compressor Refrigerant Oils ......9 Trouble Shooting Chart ..............31 POLYOL ESTER LUBRICANTS ............. 10 Start Up Information .................32... -
Page 3: General Safety Information
Never use the shipment pallet as a permanent mounting base. If vibration is a concern, proper vibration isolators should be installed. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 4: Space And Location Requirements
Space and Location Requirements Figure 1 WALLS OR OBSTRUCTIONS MULTIPLE UNITS The unit should be located so that air may circulate freely and For units placed side by side, the minimum distance between not be recirculated. For proper air flow and access all sides units is the width of the largest unit. -
Page 5: Lifting And Handling Instructions
Remote Condensing Unit Installation Instructions Lifting/Handling Instructions Figure 2 When a crane is used to lift the unit proper measures should be taken to protect the enclosure panels. The application of spreader bars are strongly recommended to prevent damages to the sides. (See Figure 2) Some care should be taken to locate the center of gravity before lifting. -
Page 6: Piping
91294-1 208-230V 60 Hz/ 1 Phse, 1 Fan CAUTION: Any non-compliance with voltage ranges and phase balances or any altering of electrical components without Tecumseh written approval will void the warranty. PIPING (See Suction and Liquid Line Sizes in Appendix) Employ only Refrigeration grade copper tubing. - Page 7 ¾” wall thickness. Liquid lines should also be insulated with at least ½” wall thickness. The insulating material should be of a kind intended for outdoor use. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com...
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Page 8: Pressure Testing For Leaks
The pressure regulator must be able to reduce the pressure down to 1 to 2 psig and maintain this pressure. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com... -
Page 9: Pressure Controls
As always, to avoid serious injury or death from terminal venting with ignition, never energize the compressor unless the terminal cover is securely fastened. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 10: System Charging
©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 11: Head Pressure Systems
(See Figure 5) REFRIGERANT FLOODING CHARGE The Refrigerant Flooding Charge Tables (appendix) summarize the coil charges for ARGUS Outdoor Condensing Units. Winter charge assumes 90% flooded coil; Summer charge assumes 10% flooded coil. These charges are approximate and should not be used as absolute rules for charging the system. -
Page 12: Polyol Ester Lubricants
The compressor will start when the low-pressure control closes and the pressure rises. • Always re-assemble the enclosure panels when start-up job is completed. Make sure all panels are secure and panel screws are properly tightened. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 13: System Balancing-Compressor Superheat
All adjustable controls and valves must be field adjusted to meet desired operation. There are no factory preset controls or valve adjustments. This includes low pressure, high pressure, adjustable head pressure systems and expansion valves. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 14: General Sequence Of Operation
The fan motors start running. 8. The system will now operate in the refrigeration cycle until another defrost period is initiated by the timer. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 15: Electric Defrost Troubleshooting
3. A Preventative Maintenance schedule should be set up as soon as possible after start-up to maintain equipment integrity. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 16: Operational Checkout Procedure
5. Multiple evaporator systems should operate from one thermostat. 6. If a remote defrost timer is to be used, the timer should be located outside the refrigerated space. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 17: Phase Loss Monitor
• Always re-assemble the enclosure panels when maintenance job is completed. Never leave loose or not properly tightened panels. ATTENTION! Make sure all screws are re-tightened before start-up Make sure all wires are hooked up per wiring diagram ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 18: Troubleshooting
TROUBLESHOOTING Basic troubleshooting tips are provided in the appendix. For more in-depth help, please refer to the Tecumseh Service handbook or Electrical Service Guidebook on our website at www.tecumseh.com. QUESTIONS AND SUPPORT Tecumseh Tech Support: 800.211.3427 or Email: technical.service@tecumseh.com Tecumseh reserves the right to change any information in this publication at any time. -
Page 19: Appendix
Remote Condensing Unit Installation Instructions APPENDIX Tecumseh ARGUS Outdoor Condensing Unit Operational Charge For Variable Ambient Based on 148°F Head Pressure Control (Large & Medium Frame Units) For Variable Ambient Based on 123°F Head Pressure Control (Small Frame Units) R404A... -
Page 20: Cu Wiring Diagrams
CU Wiring 91292 Diagrams 115 & 230 Volt 1 Phase 1 Fan Motor 91293 208-230 Volt 1 Phase 2 Fan Motors 1 Fan Control ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... - Page 21 Remote Condensing Unit Installation Instructions 91293-1 200-230 Volt 3 Phase 2 Fan Motors 91294 200-230 Volt 3 Phase 1 Fan Motor ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
- Page 22 CU Wiring 91294-1 Diagrams 200-230 Volt 3 Phase (Continued) 1 Fan Motors ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
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Page 23: Line Sizing
13.67 R-407 37.60 2.45 3.92 6.17 17.80 9.23 4-1/8 R-448A/R-449A 36.53 2.40 3.89 6.05 9.00 13.25 R-507, R-404A 47.57 3.80 5.55 9.09 12.58 17.80 ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... - Page 24 Globe Valve (Open) Angle Valve (Open) 90° Turn Through Tee Tee (Straight Through) 1-1/2 2-1/2 3-1/2 or Sweep Below 90° Elbow or Reducing Tee (Straight Through) ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
- Page 25 48,000 1-1/8 60,000 1-1/8 1-1/8 1-1/8 72,000 1-1/8 1-1/8 1-1/8 1-1/8 1-1/8 90,000 1-1/8 1-1/8 1-1/8 1-1/8 1-1/8 1-1/8 120,000 1-3/8 1-1/8 1-3/8 1-3/8 ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
- Page 26 2. All sizes shown are for O.D. Type ”L“ copper tubing. 3. Suction line sizes selected at pressure drop equivalent to 2°F. Reduce estimate of system capacity accordingly. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
- Page 27 2. All sizes shown are for O.D. Type ”L“ copper tubing. 3. Suction line sizes selected at pressure drop equivalent to 2°F. Reduce estimate of system capacity accordingly. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
- Page 28 2. All sizes shown are for O.D. Type ”L“ copper tubing. 3. Suction line sizes selected at pressure drop equivalent to 2°F. Reduce estimate of system capacity accordingly. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
- Page 29 2. All sizes shown are for O.D. Type ”L“ copper tubing. 3. Suction line sizes selected at pressure drop equivalent to 2°F. Reduce estimate of system capacity accordingly. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
- Page 30 2. All sizes shown are for O.D. Type ”L“ copper tubing. 3. Suction line sizes selected at pressure drop equivalent to 2°F. Reduce estimate of system capacity accordingly. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
- Page 31 2. All sizes shown are for O.D. Type ”L“ copper tubing. 3. Suction line sizes selected at pressure drop equivalent to 2°F. Reduce estimate of system capacity accordingly. ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...
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Page 32: Argus Nomenclature
Custom (C) M, F, N, G R (oversized receiver) , JLH (outdoor with controls) H (heated receiver), W (disconnect switch), Z (e-coating), C (accumulator) ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 33: Troubleshooting Chart
Water leak into refrigerant side of a water-utilizing system 3. Low pressure cut-out due to: a. Liquid line solenoid leaking b. Undercharge of refrigerant c. Restriction in expansion device ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... -
Page 34: Start Up Information
_________ ºF _________ ºC Superheat at evaporator : _________ ºF _________ ºC Suction line temperature at evaporator TX valve bulb: _________ ºF _________ ºC ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019... - Page 35 NOTES...
- Page 36 Tecumseh Compressor Company LLC Subsidiary of Tecumseh Products Company LLC 5683 Hines Drive | Ann Arbor, MI 48108 800.211.3427 | www.tecumseh.com ©2019 Tecumseh Compressor Company LLC. All rights reserved. www.tecumseh.com TPC Part #71511 | Rev A 05/13/2019...