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Model:

REC - 1240

REC - 1260

Unit 2, 110 Station Road, Seven Hills ,NSW,  2147, Australia

24V to 12V 

Reducer / Equalizer / Charger

Operating Instructions

Please read these instructions before use

Congratulations on purchasing your new GSL Electronics 24V to 12V Reducer/Equalizer/Charger. This product 

utilises Switchmode and Microprocessor technology giving you the ability to have a fixed voltage output or 

the ability to charge Lead based battery chemistries in the one product. The battery charging can either be 
as a straight 12V charger or a equalization charger for a 12V battery in a 24V bank which is being used as a 
center tapped 12V supply.  The charger provides a safe and fast method of restoring discharged batteries and 
maintaining them. This is achieved via precisely controlled Bulk, Absorption and Float charging states. The unit is 
fully protected against overload, short circuit, over temperature, battery reverse polarity connection(Charger mode 
only), over voltage and with a bulk charge timeout for additional safety. The models are built in a compact and 

strong aluminium extrusion which can be easily secured to both vertical and horizontal surfaces. Before starting 

the charge cycle the battery voltages are evaluated to detect faulty batteries. 

REC-R2

Installation & Safety Precautions:

 

1.

 The following connection sequence is to be followed: 

    Ground, Input, Output and Control.

2.

 Preferably mount the unit inside the vehicle. Avoid locations where external heat is produced e.g. exhaust 

    system or where the batteries are located. 

3.

 Choose a position with good ventilation where air can pass freely around the unit.  

 

4.

 Ensure the unit is protected from water spray and other sources of contamination e.g. oil, grease and dust. 

5.

 Ensure that unit is installed away from any flammable fumes, liquids or materials.

6.

 During charging process, do not use a naked flame near a battery, due to gases emitted from the battery, 

     which may ignite and explode.

7.

 Never smoke or light cigarettes near a battery.

8.

Do not place tools on top of battery or allow tools to fall on battery.

9.

 Always wear eye protection near a charging battery.

10.

 Ensure a “well” ventilated area is used when testing or re-charging batteries.

11.

 Ensure ventilation is adequate and venting holes are not obstructed. Inadequate ventilation may over-heat the  

      unit and cause inefficient operation.

12.

 If skin or clothing comes into contact with acid, flush the area(s) with water immediately. 

      Seek medical attention if necessary.

If the unit is in the following conditions. reset as follows:

- Battery Reversal Protection (Charger Mode Only)

: If the unit is hooked up in reverse then simply reconnect the 

  unit as per Fig.1

- Output Over Voltage:

 If the output over voltage protection has been tripped then there will be no operation from 

  the unit. Contact supplier or GSL Electronics for Warranty Advice. 

- Thermal Protection:

 For your safety and for the longevity of your purchase, the unit will shut down to protect itself 

  and your batteries when the unit exceeds it nominal operating temperature. To reset this condition the unit must be 

  disconnected from the battery for at least one minute to allow cooling and for the microprocessor to reset.   

Should product require service, return it to your place of purchase for Warranty Advice. 

Summary of Contents for REC-1240

Page 1: ...d 3 Choose a position with good ventilation where air can pass freely around the unit 4 Ensure the unit is protected from water spray and other sources of contamination e g oil grease and dust 5 Ensure that unit is installed away from any flammable fumes liquids or materials 6 During charging process do not use a naked flame near a battery due to gases emitted from the battery which may ignite and...

Page 2: ...g Modes Located on the rear of the unit the opposite end to the output terminals The switch is used for adjusting the mode of opperation Caution This should only be done before installing the unit Do not change modes with out reconfiguring the wiring as per the diagrams below Fig 1 for Charger Fig 2 for Reducer and Fig 3 for Equalizer Fig 2 Typical Installation Diagram for Reducer Mode Input Input...

Page 3: ...tes that the charger is in a charge state A solid output LED indicates a charged battery and that the charger is in float mode The LED will remain off when either A The charger s battery sensing technology does not sense a battery on the output B The battery has been detected to be faulty Check 12V with a meter to establish if the battery is with in the range of 7V to 13V C The Ignition Wire is di...

Page 4: ...B or the unit has just entered current limit A solid output LED indicates that the unit is operating with in the nominal range The LED will remain off when either A The Ignition Wire is disconnected B Output Over Voltage or Thermal Protection Warranty Conditions Our products come with guarantees that cannot be excluded under the Australian Consumer Law The customer is entitled to a replacement or ...

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