R TEC AUTOMATION Solar Panel Battery Charger User Guide

June 7, 2024
R TEC AUTOMATION

R TEC AUTOMATION Solar Panel Battery Charger

a screen shot of a computer

Solar Panel Battery Charger

Use the sun to your advantage with our R-TEC Automation® Solar Panel, even when Solar Panel is partially shaded.

When paired with our solar panel, Li-ion motors or battery packs remain powered by harnessing the natural energy of the sun. Sleek design allows for unobtrusive placement behind most headrails.

The charger uses industry leading, crystal technology to maximize sun ray absorption in a wide range of locations and orientations. Renewable power means motors stay running for longer, without the need for regular charging.

FEATURES

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COMPLIANCE STATEMENT

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

  • This device may not cause harmful interference.
  • This device must accept any interference received, including interference that may cause undesired operation.

TECHNICAL DATA / PACK CONTENTS

PRODUCT SPECIFICATIONS

Parameters

| Value
---|---

Max Output Power (Under 1 SUN – 1200W/m²)

| 2.73 W

Round Connector

|

Vmax

| 12.6 V

Imax

| 220 mA

USB Connector

|

Vmax

| 5 V

Imax

| 300 mA

IP Rating

| IP40

KIT COMPONENTS
  1. Solar Panel
  2. L-Bracket – Aluminum
  3. Cable: Male Micro USB to Male Micro USB Connector Cable
  4. Cable: Male Barrel to Male 2 Pin SMR
  5. Alcohol Wipe Cloths (Twin Pack)
  6. Dual Lock Type 250 Fastener
  7. Slot & Screw Cover Stickers / Label Set
    diagram

SAFETY

WARNING
Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Incorrect installation can lead to serious injury and will void manufacturer’s liability and warranty

CAUTION

  • Do not expose to moisture or extreme temperatures.
  • Do not allow children to play with this device.
  • Use or modification outside the scope of this instruction manual will void warranty.
  • Installation and programming to be performed by a suitably qualified installer.
  • For use within Li-ion Motors and rechargeable battery packs only.
  • Do not cut power cables.
  • Use only R-TEC Automation® hardware.
  • NOT suitable for exterior application.
  • Do not drill into Solar Panel body.
  • The routing of cable through walls shall be protected by isolating bushes or grommets.
  • Ensure power cable is clear and protected from moving parts.
  • If cable or power connector is damaged, do not use.

IMPORTANT SAFETY INSTRUCTIONS TO BE READ PRIOR TO OPERATION

  • It is important for the safety of persons to follow the enclosed instructions. Save these instructions for future reference.
  • Persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge should not be allowed to use this product.
  • Frequently inspect for improper operation. Do not use if repair or adjustment is necessary.
  • Keep Solar Panel away from children.

Do no dispose of in general waste.

Please recycle batteries and damaged electrical products appropriately

INSTALLATION LOCATION GUIDE

SUN’S SEASONAL DECLINATION DIFFERENCES

Take into account the movement of sun throughout the season.

IMPORTANT
Avoid shadowing from trees, awnings, etc. for optimal performance.

Northern Hemisphere
chart

Southern Hemisphere
diagram

SUN’S SEASONAL PERFORMANCE

Northern Hemisphere
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Southern Hemisphere
diagram, engineering drawing

LIGHT TRANSMISSION

Light transmission can vary widely with the number of window panes and types of coatings. The type of glass needs to be assessed. Approximate transmission factors are:

Glass Type|

Transmission Factors

---|---
Single Panel|

70%

Double Panel|

63%

Double Panel with bronze tint|

30%

Double Panel with selective low-e coating|

45% – 57%

ASSESSING THE INSTALLATION LOCATION

PRE INSTALLATION ASSESSMENT
  1. Measuring sunlight through the window
    Hold the Lux meter directly against the window glass indoors in the location you wish to mount the solar panel, and observe the KLux Reading.
    diagram, engineering drawing

  2. Estimate performance
    Using the time of the day that the measurement was taken, select the coefficient that corresponds to your region / time of year.

Time of Measurement on a Particular Day

| Coefficient in January (North Hemisphere) & July (South Hemisphere)|

Coefficient in July (North Hemisphere) & January (South Hemisphere)

---|---|---

1:00 AM

| 0|

0

2:00 AM

| 0|

0

3:00 AM

| 0.00|

0.00

4:00 AM

| 0.00|

0.00

5:00 AM

| 0.00|

0.00

6:00 AM

| 0.00|

13.64

7:00 AM

| 0.00|

4.96

8:00 AM

| 0.00|

2.97

9:00 AM

| 5.57|

1.95

10:00 AM

| 1.79|

1.53

11:00 AM

| 1.24|

1.34

12:00 PM

| 1.00|

1.09

1:00 PM

| 1.02|

1.00

2:00 PM

| 1.06|

1.07

3:00 PM

| 1.51|

1.16

4:00 PM

| 2.26|

1.32

5:00 PM

| 0.00|

1.69

6:00 PM

| 0.00|

2.56

7:00 PM

| 0.00|

5.34

8:00 PM

| 0.00|

0.00

9:00 PM

| 0.00|

0.00

10:00 PM

| 0.00|

0.00

11:00 PM

| 0.00|

0.00

12:00 PM

| 0.00|

0.00

Note: 0.00 coefficient means that the sunlight intensity is too low to be measured accurately.

Use the value calculated from the table above with the graph below to estimate the number of cycles that the solar panel can provide over a 24 hour period.

chart, line chart

EXAMPLE OF PRE INSTALLATION ASSESSMENT

Measuring sunlight intensity at 3:00 PM during winter of Northern Hemisphere, for a M25 motor installation:

  1. Measuring sunlight through the window
    Measure the KLux using a Lux meter
    Measured Value = 20KLux
    a close up of a sign

  2. Estimate performance
    Multiply the measured Value by the coefficient in the table on page 9.
    Sunlight intensity = Measured Value x coefficient
    Sunlight intensity = 20KLux x 1.51 = 30.2KLux
    diagram, icon
    Calculated sunlight intensity = 30.2KLux
    Locate 30.2KLux on the x-axis and draw a vertical line from it until it meets the motor curve.
    Draw a horizontal line intersecting the vertical line and the y-axis; gives an estimated number of cycles (within a 24-hour period) that can be achieved without depleting the battery level. i.e. the motor is only consuming energy harvested from the sun.
    In this case it is approximately 10 cycles.

INSTALLATION

MOUNTING OPTIONS

OPTION A. Attaching Mounting Bracket to Window Frame

diagram

OPTION B. Attaching Solar Panel via Velcro Strip to a Window or surface

diagram

Solar panel should not be too far from the window because the performance will be reduced.
diagram

Keep the solar panel as close to the window as possible.
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The back of the bracket should not be facing opposite to the window.
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The back of the bracket should be facing toward the window.
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In case of an eave, shade or awning, the bracket should not be bent.
diagram

diagram

HORIZONTAL ORIENTATION

Use velcro strips to stick the bracket on the window (horizontal orientation).
diagram

VERTICAL ORIENTATION

Use velcro strips to stick the bracket on the window (vertical orientation).
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INSTALLATION PROCESS

IMPORTANT
Fully charge the Motor or Battery Pack before beginning Solar Panel installation.

Locate the optimal position for solar panel in window.
Ensure all components are available for installation scenario.

IMPORTANT
Ensure solar panel has adequate exposure to sunlight. When selecting a position for solar panel, consider any external obstructions like trees, building, signs, etc. that may limit the amount of sun light reaching onto the solar panel.

IMPORTANT
The PV panel supports two motor voltages; however a single PV panel can only charge one motor type at a time. That is, if the 12V port is connected to a 12V motor, the USB (5V) port is switched off. Conversely If the 12V port is NOT connected, the USB port is automatically switched on.

OPTION A. Attaching Mounting Bracket to Window Frame

i. Break off excess bracket length using Pliers (if required).
ii. Install mounting bracket to wall/mounting point.
iii. Fix Solar panel to mounting bracket using screw.
iv. Apply stickers onto the Solar Panel to seal unused mounting holes.

diagram

OPTION B. Attaching Solar Panel via Velcro Strip to a Window or surface

  1. Clean solar panel front surface with alcohol wipe. Allow surface to dry.

  2. Peel protective film off one side of Dual Lock and attach to one end of solar panel. Press adhesive tape firmly onto solar panel surface for 5 seconds to ensure good adhesion. Ensure that Dual Lock does NOT cover any portion of the solar panel cells. Repeat previous steps for attaching adhesive tape to other end of solar panel.

  3. Apply stickers onto the solar panel to seal unused mounting holes.

  4. Clean the window or surface with alcohol wipe. Allow surface to dry. Peel protective film off Dual Locks. Press firmly onto fixing surface. Apply hand pressure for 5 seconds and check if firmly attached.
    diagram

IMPORTANT
Any partial or total covering of any solar panel cell will degrade solar panel performance.

BENDING BRACKET

Bracket can be bent in order to receive more direct sunlight which provides more energy to the motor.

IMPORTANT
Bend the bracket prior to installation of the solar panel.

The bracket should be bent at a distance of 22 mm, 36 mm or 48 mm from the base of the bracket as shown below:

diagram

IMPORTANT
Ensure the bend angle is between 150° to 180°.

IMPORTANT
Make sure that the solar panel has adequate exposure to sunlight.
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CONNECTING SOLAR PANEL WITH MOTOR

diagram

Connect solar panel with the motor.

IMPORTANT
Ensure any cables are kept clear of fabric at all times.

12V Compatible Components

Item # Description
RTMLBC Rechargeable Battery Pack (optional)
RTMLCXT48 12V Charger Cable Extender 48″
RTMLCXT96 12V Charger Cable Extender 96″

5V Compatible Components

Item # Description
RTMLDSSUSB USB Charger Cable 13′, 20 AWG

DIMENSIONS

diagram, engineering drawing

TROUBLESHOOTING

Problem Cause Remedy
Motor is not responding Remote control battery is discharged Replace

battery.
Battery is inserted incorrectly into remote control| Check battery polarity.
Radio interference / shielding| Ensure remote is positioned away from metal objects and the antenna on motor is kept straight.
Motor distance is too far from remote control| Move remote to a closer position.
Battery power depleted| Recharge with AC Adaptor (optional).
Incorrect wiring| Check that motor wiring is connected correctly (refer to motor installation instructions).
Motor beeps 10 times when in use| Battery voltage is low / Solar Panel issue
Solar Panel not providing enough power| Check connection and positioning of Solar Panel. Ensure sun exposure is adequate.
Recharge with AC Adaptor (optional).
No output Voltage from Round Connector| Not enough light| Turn the orientation of Solar Panel for more light energy.
Round Connector is open circuit| Connect battery motor for 5 minutes to check charge current.
Motor battery capacity is full| Run the motor continuously until the battery voltage is below 12 V.
No output of USB Connector| Round Connector is charging battery motor| Disconnect the motor from the Round Connector.

Any Questions?
Contact our R-TEC Automation® in-house experts at 866.985.3423. Email us at RTECAutomation@RowleyCompany.com.

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