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Charger Location 

 

Allow at least 4 inches of free air on all vented surfaces for proper cooling. 

 

Allow sufficient clearance to open the front panel for servicing. 

 

Do not operate this charger in a closed-in area or restrict ventilation in any way. 

 

Do not place charger below battery. 

 

Never allow battery electrolyte to drip on this charger when reading the specific gravity or filling the battery. 

 

Never place this charger directly above a standard flooded battery. Gases from the battery will corrode and 

damage equipment.   

 

A sealed maintenance free or valve regulated lead acid (VRLA) battery may be placed below this equipment. 

Check for Damages 

Prior  to  unpacking  the  product,  note  any  damage  to  the  shipping  container  and  take  pictures.  Unpack  the 

product and inspect the exterior and interior of product for damage. If any damage is observed, take pictures 
and  contact  the  carrier  immediately  to  file  a  damage  claim.  Contact  La  Marche  for  a  Return  Material 

Authorization number to have the charger 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 reported for repair. 
 

Returns for Service 

Save the original shipping container. If the product needs to be returned for service, it should be packaged in its 

original shipping container. If the original container is damaged/unavailable, make sure the product is packed 
with at least three inches of shock-absorbing material to prevent shipping damage. 

La Marche is not responsible 

for damage caused by improper packaging of returned products. 

 

Inspection Checklist 

 

Enclosure exterior and interior is not marred or dented. 

 

There are no visibly damaged components.    

 

 

All internal components are secure.    

 

 

 

Printed circuit boards are firmly seated. 

 

All hardware and connections are tight.  

 

All wire terminations are secure. 

 

All items on packing list have been included. 

Handling 

Equipment  can be very heavy with uneven distribution of weight.  Use adequate manpower  or equipment for 
handling.  Until  the  equipment  is  securely  mounted,  care  must  be  used  to  prevent  equipment  from  being 

accidently tipped over or dropped. 

 

Summary of Contents for A46 Series

Page 1: ...rchemfg com 106 Bradrock Dr Des Plaines IL 60018 1967 CPN 40533 Instruction Drawing Number P25 LA46 2 Tel 847 299 1188 Fax 847 299 3061 Revision A10 Rev Date 01 23 ECN 23316 Installation and Operation...

Page 2: ......

Page 3: ...eplate Do not use this charger for any purpose not described in the operation manual Mechanical Safety This charger or parts of the charger may get very hot during normal operation use care when worki...

Page 4: ...er 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 repo...

Page 5: ...A46 Startup 12 3 2 Checking the Installation 12 3 3 Charging Modes 14 3 4 Output Voltage Adjustments 14 3 4 1 A46 Output Voltage Adjustments 14 3 4 2 A46F Output Voltage Adjustments 14 3 5 Power Fail...

Page 6: ...9 Figure 6 A46 A46F Enclosure Footprint 100 Figure 7 Output Adjustment 15 Figure 8 Power Failure Contacts 16 Figure 9 Power Failure Example Connections Customer Provided Equipment 166 Table 1 Case Typ...

Page 7: ...arge the battery on a taper curve from its current limiting capacity to full charge The A46F model is the filtered version of the A46 model The A46F can be used with the following types of batteries s...

Page 8: ...A46 1 Case 1 Case 2 Case 2 Case 28 lbs 30 lbs 56 lbs 66 lbs 12 7 kg 13 6 kg 25 4 kg 29 9 kg A46F 2 Case 2 Case 7 Case 3 Case 39 lbs 41 lbs 68 lbs 91 lbs 17 8 kg 18 7 kg 31 0 kg 41 4 kg 24 VDC A46 1 C...

Page 9: ...e air must be maintained on the top bottom left and right side for cooling air Maintain 36 inches 914 mm or more of clearance at the front of the charger in order to allow for operation and maintenanc...

Page 10: ...t specifications Secure the charger on bolts add appropriate mounting hardware and tighten securely Refer to Table 2 for hardware specifications and the figures below for mounting dimensions NOTE All...

Page 11: ...9 Figure 5 Enclosure No 7 Bolt Pattern Case Mtg W X Y 4 19 RR 18 000 19 000 18 250 4 23 23 RR 23 000 22 250 Figure 3 Enclosure No 3 Bolt Pattern Figure 4 Enclosure No 4 Bolt Pattern...

Page 12: ...ger on the anchor bolts add appropriate mounting hardware onto the floor mounting anchor bolts and tighten securely Refer to Figure 6 for hardware specifications and floor mounting dimensions All dime...

Page 13: ...ed in the table are rated at 90 C or 194 F NOTE These are recommended sizes per La Marche Standards The National Electrical Code NEC and Local Wiring Codes must be followed AC Connection Procedure Fir...

Page 14: ...equipment is shipped from the factory fully inspected and adjusted to manufacturer defined default values based on the model number Do not make any adjustments unless the equipment has been energized...

Page 15: ...attery connections should be done in the following order 1 Make sure that the incoming voltage to the charger is turned off 2 Make sure the battery disconnect breaker is open 3 Connect the battery cab...

Page 16: ...ands is provided for adjusting the float and equalize voltages Adjustments can be carefully made with the charger energized until the desired voltage is achieved refer to descriptions below for charge...

Page 17: ...15 Figure 7 Output Adjustment NOTE When attempting to adjust the necessary voltage loosen the screw on the appropriate slider so it may slide freely without damaging the resistor s threads...

Page 18: ...is present by using a voltmeter at all input and output terminals If it is desired that the annunciator be active until the Power Failure alarm triggers connect the annunciator power leads to the NO a...

Page 19: ...verify that the charger in question will have the necessary output range If alarm accessories are installed alarm thresholds will also need to be changed to the desired battery type defaults refer to...

Page 20: ...er routine checks and adjustments are recommended to ensure optimum system performance Yearly 1 Confirm air vents are open Remove dust and debris from interior of charger 2 Verify all connections are...

Page 21: ...nary checks above use the troubleshooting chart on section 5 3 as a guideline NOTE If the problem is found to be located in the printed circuit boards the board should be replaced No attempt should be...

Page 22: ...open Refer to Symptom 1 Incorrect Damaged or Loose Cable Harness Connections Visually inspect and verify all internal wiring using charger schematic Defective LEDs Display Card Contact La Marche Serv...

Page 23: ...Incorrect Damaged or Loose Cable Harness Connections Visually inspect and verify all internal wiring using charger schematic Incorrect Battery Connected Measure battery voltage and verify against char...

Page 24: ...ive devices 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 185 F 40 to 85 C Relative Hu...

Page 25: ...1 5 5 0 1 38 7 23 10 24V 10 20A 5 0 12 0 2 9 6 0 2 5 6 0 2 62 7 34 20 24V 20 35A 10 0 17 5 5 8 12 0 5 0 12 0 2 73 7 39 30 24V 30 50A 15 0 30 0 8 7 15 0 7 5 15 0 7 108 3 58 40 24V 40 70A 20 1 35 0 11 6...

Page 26: ...5 0 2 9 2 5 372 260 112 381 20 24V 20 10 0 5 8 5 0 744 521 223 762 30 24V 30 15 0 8 7 7 5 1116 781 335 1143 40 24V 40 20 1 11 6 10 0 1488 1042 446 1524 50 24V 50 25 1 14 5 12 5 6 3 1860 1302 558 1905...

Page 27: ...uminum Calculating Wire Size Requirements AVD K LF A CMA Table 5 Wire Size Area Table Calculating Current Carrying Capacity of Wire K LF AVD CMA MaxAmp EXAMPLE If the charger being used has a max ampe...

Page 28: ...diode only one end of the diode must be disconnected 2 Clip one lead of the ohmmeter to the nipple or pigtail lead of the diode Clip the other ohmmeter lead to the aluminum heat sink 3 Note the ohmmet...

Page 29: ...ment Control and Revision History Part Number 40533 Instruction Number P25 LA46 2 Issue ECN 12036 6 98 23316 01 23 21360 2 17 17650 11 07 15349 01 5 02 18985 4 11 16842 7 05 14575 2 01 17832 4 08 1576...

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