tehama wireless NPA20-12 SLIM 20W 12V Polycrystalline Solar Module Installation Guide

: September 19, 2024
: tehama wireless

Table of Contents

NPA20-12 SLIM 20W 12V Polycrystalline Solar Module
Specifications
Product Usage Instructions
Installation Instructions
- Frequently Asked Questions (FAQ)
Q: What should I do if the power LED is red?
Q: Can I mount the solar panel on a wall instead of a
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

NPA20-12 SLIM 20W 12V Polycrystalline Solar Module

Specifications

Solar Panel: NewPowa WaterProof SLIM 20W 12V
Polycrystalline Solar Module W/ 3ft wire NPA20-12 SLIM
U-bolts: 4 included for mounting
Universal Flat Mount Bracket: 1 included
DCAP Unit: Contains DCAP electronics,
batteries, water-resistant connector, and ventilation plug

Product Usage Instructions

Installation Instructions

Open the case and remove the shipping foam holding the battery
in place.
Mount the solar panel to the mounting bracket using the small
aluminum plates and screws provided.
Attach the solar panel/bracket assembly to the pole using 2
U-bolts.
Mount the case to the pole under the solar panel using the
remaining 2 U-bolts.
Thread the solar panel cable through the cable passthrough
piece into the DCAP unit.
Connect the solar panel wires to the blue connector on the
board (Red to + and Black to -).
Ensure LEDs on the DCAP illuminate when connecting the solar
panel.
Screw the lock nut tight to secure the cable and keep the case
waterproof.
Plug in the battery connector and check for LED
indicators.
Close the case and secure with a zip tie or waterproof
lock.

Frequently Asked Questions (FAQ)

Q: What should I do if the power LED is red?

A: If the power LED is red, it indicates that there is no sun
reaching the solar panel. Ensure the panel is placed in direct
sunlight for optimal performance.

Q: Can I mount the solar panel on a wall instead of a

pole?

A: Yes, you can use the universal flat mount bracket included to
mount the solar panel on a wall following the same installation
steps provided in the manual.

Installation Guide: Solar DCAP Kit

Components and Parts

Item

Qty Description

Solar Panel

1 NewPowa WaterProof SLIM 20W 12V Polycrystalline Solar Module W/ 3ft wire NPA20-12 SLIM

U-bolts

4 A pair of U-bolts are used to mount the panel to a 2 inch pole, the other pair to mount the DCAP unit to the pole just below the panel.

Universal Flat Mount Bracket

1 Use the Installation Manual and 2 U-bolts included in the box to mount the solar panel to a pole (or wall) as shown in the picture.

DCAP Unit

1 The DCAP unit contains the DCAP electronics and the batteries, along with a waterresistant connector for the solar cable and a humidity reducing ventilation plug. Follow the instructions below to connect the solar panel to the board and plug the batteries in when installing.

Installation instructions

1. Open case and discard the shipping foam holding the battery in place.
2. Mount the solar panel to the mounting bracket using the 2 small aluminum plates and screws included in the bracket box.
3. Mount the solar panel/bracket combo to the pole using 2 of the included U-bolts.
4. It is ALWAYS best to mount the system as high off the ground as possible.
5. Using the remaining 2 U-bolts, attach the case to the pole underneath the solar panel to keep it in the shade.

6. Unscrew (but don’t remove) the lock nut on the cable passthrough piece and thread the solar panel cable through it and into the DCAP unit.

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Installation Guide: Solar DCAP Kit
7. Using a small screwdriver, screw the solar panel wires to the blue connector on the board (Red to “+” and Black to “-“). Once the wires are secured, push the cable further into the case so that it tucks behind the board (into the empty space under the DCAP).
8.If you have sun or partial shade on the panel, you should see the two LEDs on the DCAP illuminate when you connect the solar panel.
9. Screw the lock nut tight to secure the cable in place and keep the case waterproof.

10. Plug in the battery connector. You will likely see a green LED near the plug illuminate. This indicates the battery is being charged by the sun.
11. At this step, you should definitely see the Power LED On. If there is no sun, the LED will be red. If there is sun, the power LED will be green.
12. Close the case. Use a zip tie or small water proof lock to secure the case. (Optional, not included)

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