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General Safety Recommendations
Batteries store a large amount of energy. Never short circuit a battery under any circumstances. We recommend connecting a fuse (slow acting type, according to the nominal
regulator current) directly to the battery terminal.
Batteries can produce flammable gases. Avoid making sparks, using fire or any naked flame. Make sure that the battery room is ventilated.
Avoid touching or short circuiting wires or terminals. Be aware that the voltages on specific terminals or wires can be up to double the battery voltage. Use isolated tools, stand on
dry ground and keep your hands dry.
Keep children away from batteries and the charge regulator.
Please observe the safety recommendations of the battery manufacturer. If in doubt, consult your dealer or installer.
Intended Use
The charge controller is intended for use in photovoltaic systems with 12 V nominal voltage. It shall be used with vented or sealed lead acid batteries only.
Liability Exclusion
The manufacturer shall not be liable for damages, especially on the battery, caused by use other than as intended or as mentioned in this manual or if the recommendations of the
battery manufacturer are neglected. The manufacturer shall not be liable if there has been service or repair carried out by any unauthorized person, unusual use, wrong
installation, or bad system design.
Opening case voids warranty.
Description of Functions
The charge controller protects the battery from being overcharged by the solar array. The charging characteristics include several stages. Ambient temperature influences the
charging characteristics.
The charge controller has a number of safety and display functions.
Choosing the Position
The regulator is intended for indoor use only. Protect it from direct sunlight and place it in a dry environment. Never install it in humid rooms (like bathrooms).
The regulator warms up during operation. It shall be installed on a non flammable surface only.
Connecting the Charge Controller
1.
Mount it on a dry, plain and non flammable surface. Use the mounting holes (1).
2.
Connect the wires leading to the solar array to terminals (3) with the correct polarity. To avoid sparks, shade the solar array during connection. The maximum short
circuit current must not exceed the nominal current of the regulator.
3.
Connect the wires leading to the battery to terminals (2) with the correct polarity prior to connecting these wires to the battery.
It is recommended that you protect the battery by connecting a fuse directly to the battery terminal.
We recommend some form of mechanical strain relief close to the regulator for all wires.
Safety Functions
Battery reverse polarity: If the battery is connected with reverse polarity by accident, the regulator will not get damaged.
Solar array reverse polarity: An electronic fuse protects the regulator if the array is connected with reverse polarity.
Display Functions
The regulator has a display LED.
If the LED is lit green, the battery is fully charged.
If the LED is lit yellow, the battery is being charged.
Recommendations for Use
The regulator does not need any maintenance or service. Remove dust with a dry tissue.
It is important that the battery gets fully charged frequently (at least monthly). Otherwise the battery will be permanently damaged.
A battery can only be fully charged if not too much energy is drawn during charging. Keep that in mind, especially if you install additional loads.
Technical Data
Nominal voltage
12 V
Boost voltage
14.5 V (12V/25°C)
Float voltage
13.7 V (12V/25°C)
CM04-2.1: 4A
Max. solar panel
CM10-2.1: 10A
current
Dimensions
13.5cm x 9 cm x
3cm
Weight
68g
Max. wire size
16 mm 2
Self consumption
<4 mA
Ambient
-40 - + 50°C
temperature
range
Case protection
IP 22
Limited Warranty
This product is covered by a 2 year limited warranty. Sunforce Products Inc warrants to the original purchaser that this product is free from defects in
materials and workmanship for the period of one year from date of purchase
To obtain warranty service please contact Sunforce Products for further instruction, at 1-888-478-6435 or email info@sunforceproducts.com. Proof of
purchase including date, and an explanation of complaint is required for warranty service.
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