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La Marche A31, Installation And Operation Manual

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This manual is subject to change without notice. You may obtain the newest version of the manual at www.lamarchemfg.com 

106 Bradrock Dr. Des Plaines, IL 60018-1967 

CPN 40966 

Instruction Drawing Number: P25-LA31STD-1 

Tel: 847 299 1188 

Fax: 847 299 3061 

 

Revision A08 

Rev. Date: 01/21 

ECN: 22782 

 

Installation and Operation Manual 

 

La Marche Manufacturing Company 

www.lamarchemfg.com

 

A31

 

DC 

–

 AC Sine Wave Inverter 

Summary of Contents for A31

Page 1: ...www lamarchemfg com 106 Bradrock Dr Des Plaines IL 60018 1967 CPN 40966 Instruction Drawing Number P25 LA31STD 1 Tel 847 299 1188 Fax 847 299 3061 Revision A08 Rev Date 01 21 ECN 22782 Installation a...

Page 2: ...ngs listed on the inverter nameplate Do not use this inverter for any purpose not described in the operation manual Mechanical Safety This inverter or parts of the inverter may get very hot during nor...

Page 3: ...verter sent back for evaluation and repair CAUTION Failure to properly file a claim for shipping damages or provide a copy of the claim to La Marche may void warranty service for any physical damages...

Page 4: ...1 Rack Mounting the A31 3 2 1 2 Floor Mounting the A31 4 2 2 Making the DC Input Connections 5 2 3 Making the AC Output AC Bypass Line Connections 6 3 0 Operation 6 3 1 A31 Start Up 6 3 2 Checking th...

Page 5: ...and high voltage conditions the unit is turned off automatically if the DC input is not within the proper range Understanding the Model Number The A31 model number is coded to describe the features t...

Page 6: ...Installation 2 1 Mounting the A31 When mounting the A31 in any configuration consider the size and weight of the inverter The rack and or floor must be able to support the weight of the inverter as we...

Page 7: ...ary brackets installed for rear mounting on a relay rack The rack mounting bracket for the 39 enclosure allows for mounting on a 19 or 23 rack and the 9D 9E and 33 enclosures allow for mounting on a 2...

Page 8: ...olts into the floor Place the inverter on the anchor bolts add appropriate mounting hardware and tighten securely Refer to the figure below for hardware specifications and floor mounting dimensions Al...

Page 9: ...60 6 10 70 6 8 80 4 8 90 4 8 100 4 8 125 2 6 150 1 6 175 1 0 6 200 2 0 6 250 4 0 4 300 250 MCM 4 Table 4 AC DC Ground Wire Size Minimum Requirements All wires specified in the table are rated at 90 C...

Page 10: ...164 or 165 also connect the AC bypass line phase hot to the LINE terminal and the AC bypass line neutral to the LINE N terminal Figure 5 One Line Diagram for Typical A31 Inverter Application 3 0 Opera...

Page 11: ...rees with nameplate For Inverters with 10 15ms Static Switch Option 164 165 1 Push and hold the Pre Charge button until the green READY LED illuminates 2 Release the Pre Charge button and immediately...

Page 12: ...the specified voltage threshold The LED will turn off once the high DC voltage condition is no longer present Low DC Voltage LV The LV LED will turn on and output from the inverter will be inhibited...

Page 13: ...nce Although minimal maintenance is required on the A31 inverter routine checks and adjustments are recommended to ensure optimum system performance Yearly 1 Confirm air vents are open Remove dust and...

Page 14: ...be caused by defective batteries and user loads make sure batteries and loads are free from defects NOTE If the problem is found to be located in the printed circuit boards the board should be replac...

Page 15: ...ctive Inverter AC Breaker Defective Inverter DC Breaker Broken Wire Shorted or Open C1 Capacitor Low or High DC Voltage Shutdown Activated or Improperly Set Open F2 Fuse Open Fuse on S2A 297 S2A 306 I...

Page 16: ...sistance between the middle K1 and A2 terminal and a low resistance between terminal A1K2 NOTE A wiring diagram of the module is located on the side of the component IGBT Modules With an ohmmeter meas...

Page 17: ...Bypass Line Fuse ENVIRONMENTAL Audible Noise Less than 65dBA at any point 5 feet from any vertical surface Operating Temperature 32 to 122 F 0 to 50 C Storage Temperature 40 to 140 F 40 to 60 C Relati...

Page 18: ...loop feet MaxAmp Maximum allowable amps for given voltage drop AVD Allowable voltage drop K 11 1 for commercial TW copper wire 17 4 for aluminum Calculating Wire Size Requirements AVD K LF A CMA Table...

Page 19: ...g the first year If the Extended Warranty is purchased the parts required for repair will also be at no cost but La Marche will notify the Purchaser of the costs of Labor to replace the defective part...

Page 20: ...for return authorization and a purchase order must be issued Replacement part s will be promptly shipped and invoiced After the defective part s are returned and inspected at the Factory if the defect...

Page 21: ...E Document Control and Revision History Part Number 40966 Instruction Number P25 LA31STD 1 Issue ECN 12266 08 98 22782 01 21 18601 03 10 16816 09 05 16651 01 05 15884 04 03 15349 05 06 02 14575 02 01...

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