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INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B
A12B
CONSTAVOLT
®
FLOAT
BATTERY CHARGER
ECN/DATE
CPN40594
18985 – 04/11
17650 – 11/07
15761 – 2/03
14575 – 2/01
18589 – 03/10
16816 - 8/05
15349-01 – 5/01
13608 1/00
106 BRADROCK DRIVE
DES PLAINES, IL. 60018
(847)299-1188
FAX:(847)299-3061
ISSUE DATE: 12092 - 6/98
INSTRUCTION DRAWING NUMBER:
LA12B-2
P25-
Page 1 of 17
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Summary of Contents for La Marche CONSTAVOLT A12B
- Page 1 INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B A12B CONSTAVOLT ® FLOAT BATTERY CHARGER ECN/DATE CPN40594 18985 – 04/11 17650 – 11/07 15761 – 2/03 14575 – 2/01 18589 – 03/10 16816 - 8/05 15349-01 – 5/01 13608 1/00 106 BRADROCK DRIVE DES PLAINES, IL.
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Page 2: Important Safety Instructions
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS. This manual contains important safety and operating instructions. Before using this equipment, read all instructions and cautionary markings on (1) unit, (2) battery, and (3) product using the battery. - Page 3 NOMENCLATURE PLATES Each piece of La Marche Mfg. Equipment shipped is identified by part number on the nomenclature plate. ADJUSTMENTS All equipment is shipped from the factory fully checked and adjusted. Do not make any adjustments unless the equipment has been powered-up and the settings have been determined to be incorrect.
- Page 4 INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B ***CAPACITOR PRE-CHARGE INSTRUCTIONS*** WARNING: READ INSTRUCTIONS BEFORE CONNECTING BATTERY To prevent the DC output fuse from blowing when connecting the battery, connections to the power supply and batteries should be done in the following order (single power supply).
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Page 5: Operation
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B INSTALLATION AND OPERATING INSTRUCTIONS FOR THE LaMARCHE A12B CONSTAVOLT® FLOAT BATTERY CHARGERS The Constavolt® Float Rectifier is designed to operate on a specific number of cells. The nameplate on the charger indicates the type and number of cells required. Once properly installed and adjusted, the rectifier should maintain the battery in a fully charged condition. -
Page 6: Ac Power Failure
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B increases the induced voltage in the secondary of the transformer, thus, increasing the charge rate to maximum rated output. When the battery voltage reaches it float voltage, the control begins to operate to reduce the charge rate. -
Page 7: Power Cabling Formulas
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B POWER CABLING FORMULAS AREA SIZE AREA SIZE AREA SIZE CIR. AWG. CIR. CIR. AWG. MILS MCM* MILS MCM* MILS 1620 83690 600000 2580 105600 700000 4110 133100 750000 6530 167800 800000 10380 211600 900000 16510... -
Page 8: Wire Gauge Table
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B NOTE: These are recommended wire size. All National and Local Wiring Codes must be followed. The table lists the AC input and the DC output minimum wire size requirements. At distances exceeding 10 feet, the DC wire size should be chosen to keep the voltage difference between the units DC output terminals and the battery at less than 1/2 volt when the unit is fully loaded. - Page 9 INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B PARALLELING PROCEDURE INSTRUCTIONS HIGH FLOAT SWITCH IN FLOAT POSITION 1. Chargers to be paralleled must be of the same voltage rating. 2. Turn one (1) charger on. Charge the battery to full charge. Set the voltage control potentiometer so the desired float voltage is maintained at a trickle charge rate.
- Page 10 INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B TABLE #1 - A12B HEAT LOSSES (SINGLE PHASE) (based on 75% eff. at rated load) DC AMPS-DC VOLTS WATTS IN WATTS OUT WATTS LOST BTU/HR. 3- 12V 6- 12V 10-12V 15-12V 20-12V 30-12V 40-12V 50-12V...
- Page 11 INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B TABLE - #2 - A12B HEAT LOSSES (THREE PHASE) (based on 85% eff. at rated load) DC AMPS - DC VOLTS WATTS IN WATTS OUT WATTS LOST BTU / HR. 100-12V 1553 1320 125-12V 1941...
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Page 12: Troubleshooting
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B TROUBLESHOOTING GENERAL INFORMATION This troubleshooting guide should be used by trained service personnel or an experienced electrician. CAUTION: Hazardous AC and DC voltages are present within the units enclosure. Equipment: The only equipment required is a multi-scale volt-ohm meter, and a standard tool kit. Before setting up any complicated testing or jumping to any conclusions, give the unit a general inspection. - Page 13 INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B Charger will not taper to finish 1. Defective battery Check for defective cells on battery. rate 2. Defective control panel 2. To check control panel, disconnect and separate blue and black wires going to pin one on the control panel.
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Page 14: Battery Selection
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B TECHNICAL OPERATION OF THE LaMARCHE SELF-REGULATED AUTOMATIC AC LINE COMPENSATED FLOAT BATTERY CHARGER AND FOR FIRE PROTECTIVE SIGNALLY SERVICE* Installation These chargers are designed for use on fire protective signaling service applications. The systems are based on 24 or 60-hour discharge without AC power available, and a maximum of 48- hours recharge while still supplying the maximum load current when the AC power returns. - Page 15 INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A12B General Maintenance Procedure Yearly 1. Blow out rectifier/inverter with a low-pressure air hose. 2. Make sure all connections are tight. 3. Perform a visual check on all internal components. 4. Check front panel meters and alarms for accuracy. 4th Year REPEAT ABOVE WITH THE ADDITION OF: 1.
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Page 16: Manufacturer's Standard Warranty
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(s). -
Page 17: Manufacturer's Extended Parts Warranty
The equipment can be returned to the La Marche factory to have the inspections, parts replacements and testing performed by factory personnel. Should it be necessary to return a piece of equipment or parts to the factory, the customer or sales representative must obtain authorization from the factory.
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