NASS Solar DC Deep Well Pumps · NASS Solar DC Deep Well Pumps ... You may need combinations of series and parallel connections of panels, especially for the larger pumps. The required

North American Solar Solutions

Nass DC Pump Division

www.solardcpumps.com

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Technical Data Manual

For NASS Models:

NASS # 4 0.9-32

NASS # 6 1.8-60

NASS # 8 2.1-120

NASS # 10 3.8-98

NASS # 12 3.8-128

NASS #14 23-21

JP15-14/600

JP31-19/1000

JP35-22/2000

JP60-13/2200

NASS Solar DC Deep Well Pumps

NASS Type DC Well Pumps For pumping and filling applications for both commercial and residential and irrigation purposes




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Introduction

Congratulations on the purchase of your Solar Deep Well Pump from North American Solar Solutions.

Solar powered products are environmentally friendly, self-sufficient as well financial benefit to reduce rising electrical

cost. Our product range is designed with durability and reliability in mind to provide trouble free service throughout the

life of the product.

Our Solar Dc Pumps can be used for:

Deep well pumping

Agriculture

Transfer of liquids

Water Fountains

Care and disclaimer

It is recommended that you familiarise yourself with these important instructions. Read the complete manual before

commencing the installation.

Although the solar panel connections are considered low voltage, there is still a possibility of electrical shock. During the

connection stage of the solar panels, it is recommended that the panels be covered with dark cloth or cardboard until

connections are complete and you are ready to carry out voltage tests.

Do not switch the power on unless all connections and voltage readings are correct. The pump must be submersed in

water before attempting to start the system.

Failure to comply will void warranty




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Installation Details

Solar photovoltaic panels convert sunlight to electrical energy which is fed to the solar controller. Using MPPT

(Maximum Power Point Tracking) technology, the solar controller maintains constant voltage and converts the single

phase DC to 3 phases to power the pumps motor.

If backup batteries (optional) are available the pump controller can charge them. The stored energy can be

used at a later date when the sunlight may not be adequate to drive the pump. Sensors are also connected to

the controller and can be used to protect the pump from running dry as well as to automatically turn the pump

off when a water tank is full. The system can be remote from traditional power sources and fully automatic.

Sizing the solar panel array to suit the system

If you have not purchased a complete system from your Certified Distributer the following formula will be useful. Your

certified distributer will be able to help you with panel selection.

The optimum loaded DC voltage (Vmp) for the solar controller is between 35VDC to 80VDC.

The maximum open circuit voltage (Voc) is 100VDC. CONNECTION OF SOLAR PANELS WITH

FOR: NASS #4 & NASS #6,

TOTAL OPEN CIRCUIT VOLTAGE GREATER THAN 63 VDC WILL VOID WARRANTY.

NASS #8,


NASS #10-12-14





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NASS 14




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Solar Panel Requirements:

Recommended Power of PV panels (watts) = Rated power of pump (watts) x 1. 3 ~ 2.0

Example:

One Nass # 6 pump Power = 180 watt pump needs a minimum of 180 watts multiplied by 1.3 to maximum 2.0 to drive the DC motor (180w

x 1.3 = Minimum Panel wattage required 230 Watt) Optimum 360 Watt

You may need combinations of series and parallel connections of panels, especially for the larger pumps. The required

voltage is achieved by connecting the solar panels in series (series string). The total power requirement (watts) is achieved

by connecting further series strings in parallel.

Panels in series; add the voltage and the wattage of the panels.

Example 2 x 36 volt, 8 Amp 200 watt panels in series becomes a 72 volt 8 Amp 400 watt system.

Panels in parallel; add the current and the wattage of the panels.

Example 2 x 36 volt, 8 Amp 200 watt panels in parallel becomes a 36 volt 16 Amp 400 watt system




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(2) Selecting the battery of the pumping system

You will need to buy deep cell battery if you want to pump water when there is a lack of sun light. Please note

if you want to add batteries you will need to double the number of PV panels. These extra PV panels are

required to charge the batteries while the pump is running.

You must use deep cycle batteries not car batteries. Deep cycle batteries are designed to take much lower

continual discharges than regular car batteries. Deep cycle batteries normally have an “amp hour” rating

shown as AH, for instance 100AH. Use the following formulas for calculating battery size required for backup.

Please note even with a deep cycle battery discharging it to a low level will shorten its life, this is why we use

60% as a discharge level.

Example:

Installing Nass # 6 pump

Current drawn by the pump = pump power /by the pump voltage.

24 volt 180 watt pump.

180 watts divided by 24 = 7.5 amps.

2 x 100AH 12volt batteries in series = 100 Ah at 24 volts.

100Ah divided by 7.5 amps x 0.6 = 7.9 hours of backup

Batteries in parallel, add the Ah, voltage stays the same.

Batteries in series, add the voltage, Ah stays the same.




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In the schematics below are the connection details for the pumps available from North American Solar Pump Division.




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3. INSTALLATION

(1) Wiring the pump

Connecting a longer cable to the pump you have to verify the voltage drop, generally we want to keep the

voltage drop below 2% maximum.

50' 100' 150' 200' 250' 300'

10 8

10 6 6

10 10 8 6 6 4

Distance in Feet

Use the parts contained in the cable connector kit (heat-shrink tube) to connect a longer supply wire to the

pump. If you don’t have a heat gun to shrink the tube, the

barrel of your soldering iron will also work.

1. Strip both wires as per detailed sketch above

2. Layout the components needed to make the join.

3. Put the large diameter piece of heat-shrink over the main cable Fig 1

4. Next use smaller heat shrink pieces over the individual wires. Fig 2

5. Slide the small heat-shrink over the soldered joints and heat using

a heat gun or alternative heat source to shrink the sleeve down over

the wires.

6. Solder all 3 connections, Fig 3

Note: Remember the color connected to your wire. (So the pump

doesn’t run in the wrong direction)

Note: Keep the heat-shrink back away from the joints as you solder

them. Any heat transfer will prematurely shrink the heat-shrink.

7. Heat shrink the 3 wires, Fig 4

8. Wrap vulcanized tape over the sealed joints. Fig 5

Note: Use vulcanized tape to wrap wires; electrical tape is not made

for years of service under water

9. Finally slide the large diameter heat-shrink over the completed joint

and apply the heat gun to shrink the heat shrink. Fig 6

10. Place the pump in water before you start wiring the controller box.

This will allow the pump to go through the pre-conditioning required.

Note: Do not put the pump in its final position until you have tested it,

unless it is easy to see and remove. (Use Pail to test pump)

11. After testing install the deep well pump to its final location




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Wiring the controller box

Before you start wiring the control box switch must be in the off position.

A. The wiring diagram below is for pump controllers (24V, 36V, 48V, 72V, 110V) without battery

function. Fuses must be used to protect the controller for PV and Battery connection. Spark arrestor

are mandatory to prevent high voltage spikes during storms.

When using pressurized system (NO OPEN TANK USED) standard home system Install reversed pressure switch Means contact closes when pressure is made Connect pressure switch to TC & TH Contact, If no sensor is installed in well, bridge needed WC-WH




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B. The wiring diagram below is for pump controllers (24V, 36V, 48V, 72V, 110V) with battery function

When using pressurized system (NO OPEN TANK USED) standard home system Install reversed pressure switch Means contact closes when pressure is made Connect pressure switch to TC & TH Contact, If no sensor is installed in well, bridge needed WC-WH

When connecting with battery, make sure the polarity is correct, plus to plus, minus to minus.

Charge controllers generally have the following connections.

Battery, Panel and Load either written or in pictorial form. The pump controller solar PV input is connected to

the load terminals of the pump controller. As a safety margin we recommend the charge controller be able to

supply at least 1.5 times the pump requirements. Selection of battery & PV panels as mentioned in the panel

and battery requirements.

Caution. When wiring the battery be very careful not to reverse or short the terminals. We advise you remove

all metal wrist bands or watches before you start. Solar PV panels when connected together produce a lot of

energy so caution must also be exercised. A dark cloth to shade the panels is a good precaution to reduce the

power output.




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C. The wiring diagram below is for pump controllers (220V, 380V).

When using pressurized system (NO OPEN TANK USED) standard home system

Install reversed pressure switch Means contact closes when pressure is made Connect pressure switch to TC & TH Contact, If no sensor is installed in well, bridge needed WC-WH

2/ It is important that the water sensors are connected properly.

The water low (WH) and water common (WC) are very important because

they protect the pump from running dry.

Do not link out WH under any circumstances. (the only exception is for

troubleshooting) The sensor terminals TC and TH can be left disconnected if

you are not using a header tank or don’t care if the water flows out on the

ground once the tank is full.

The sensor probes are all the same, just different colored wiring. For clarity we recommend you use the

probes with white wires as the common probes (WC and TC) and the other colors’ for WH and TH




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4. TESTING THE PUMP

Before you testing the pump, the controller box switch must be in the off position.

The pump must be under water at all times and should have been pre-conditioned for at least 15 minutes.

Water is the lubrication for the pump and if it is not “preconditioned” properly the bearings will not be

adequately lubricated.

Do not attempt to test the pump if even for a moment without it being submerged, or permanent

damage will occur. When testing you will need a large container so the pump does not pump it dry in

seconds.

1/ Attach a durable rope or stainless steel cable to the top of the pump using the mounting hole. Make sure the

rope or cable is longer than the depth at which you want to install the pump. This is used to raise and lower the

pump.

Never use the power cable to do this.

2/ Attach the WH sensor with a tie wrap to the pump cable so it will be at least 0.5 metres above the pump

body when it is installed, the higher the better. The WC sensor needs to be placed below the WH sensor.

(Float sensor can be used and connected to WC & WH)

3/ Connect the water line and lower the pump into the bore hole, well, stream lake etc.

Please note the pump must be operated vertically so the bearings have no excess side thrust on them

and the water should be clean with no corrosive materials in it.

4/ The PV panels need to be in full sun. Turn on the control switch. The pump has a “soft start function” and

will start after 6 seconds and then spin up to full speed in the next 6 seconds. If the wiring is correct the pump

will restart and the pump will run continuously. If the pump does not pump water it is possible the wiring of the

pump is incorrect and it is running backwards. To correct this switch off the control box and reverse the wires

to terminals U and V. Switch the controller on again and the pump should now be working correctly after self-

diagnostics.

If this does not happen see the trouble shooting guide.

5/ Test the sensors one at a time. Pull the sensor connected to WH out of the water, the pump should stop

immediately. Put the sensor back under water, the pump should start after 30mins delay. To test TH and TC

start the pump with TH and TC out of the water. Put TH and TC in water. The pump should stop. Pull the TH

sensor out of the water and the pump should start again.

Please Note: If the water is lower than WH sensor, the pump won’t work.

There will be 30mins delay before restart.

During this 30mins, the power lights are off.

If you want the pump works immediately, you need put WH sensor in water and restart the

switch on controller.




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5. TROUBLE SHOOTING

Problem Possible solution

System light off

1.Turn power switch on

2. Check if all connections are correct.

3. It is during 30mins delay after water level sensor protection

from low water level in well. Please restart the switch on/off on

controller.

Water level in the

reservoir is lower than

“TH” sensor, but the

indicator light of

“TANK_F” lights on.

1. Disconnect “TH” wiring terminal and “TC” wiring terminal. Then

if “TANK_F” lights off, it means the problem may be caused by

short circuit of the water level sensors. Please change the water

level sensors.

2. Please check if there is any other metal material in tank that is

lower than TH sensor. If yes, remove the metal material.

3. If “TANK_F” still lights on, please contact with your supplier.

Water level in well is

higher than “WH” sensor,

but the indicator light of

“WELL_L” lights off.

1. Connect “WH” wiring terminal and “WC” wiring terminal directly

with a piece of wire to get a short circuit. Then if “WELL_L” lights

on, it means the problem may be caused by open circuit of the

water level sensors. Please change the water level sensors.

2. If “WELL_L” still lights off, please contact with your supplier.

The indicator lights flicker

continuously, and water

pump does not run

normally

1. It may be caused by the low input voltage.

2. Incorrect panel configuration

3. Voltage input is low

3. If the lights still flicker, please contact with your supplier.




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(2) Solar pump control box

① Function of solar pump controller box:

a. Low-voltage protection (It is automatic)

b. Over current protection(It is automatic)

c. Protection for low water level in well (WC,WH sensors)

d. Protection for full water level in tank (TC,TH sensors)

e. Controlling running speed of motor (Speed regulator)

f. Delay working when low water in well (A timer inside can delay working for 30mins after the pump stops working from low water level protection in well)

g. MPPT function. (Maximum Power Point Tracking)

h. Battery. It is optional. (Battery can be connected to the controller directly for storing electricity.)

② Technical parameters of controller box

Table 5-1 24V Controller Box Technical Parameters

Rated Voltage 24VDC

Rated Current 12A

Biggest open voltage 63VDC

Input Max Power 1000W

Voltage

Under Voltage 17.0±0.2VDC

Best Working Voltage 29±0.2VDC

Current

Overload 15A

Over current 18A

Dimension 147*232*65mm

Weight 1.10kg

Ambient Temperature -20℃～+50℃

Adaptive

Solar Panel

Peak Voltage 17-18VDC,29-30VDC,35-36VDC

Open-circuit Voltage 21-22VDC, 35-36VDC, 43-44VDC




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Rated Voltage 36VDC

Rated Current 12A



Voltage Under Voltage 20.0±0.2VDC


Current

Overload 15A

Over current 18A


Weight 1.10kg


Adaptive Solar

Panel

Peak Voltage 17-18VDC

Open-circuit Voltage 21-22VDC


Rated Voltage 48VDC

Rated Current 12A





Current

Overload 15A

Over current 18A


Weight 1.10kg


Adaptive Solar Peak Voltage 17-18VDC,29-30VDC,35-36VDC




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Panel Open-circuit Voltage 21-22VDC, 35-36VDC,43-44VDC


Rated Voltage 72VDC

Rated Current 15A





Current Overload 18A

Over current 22A


Weight 1.10kg


Adaptive

Solar Panel



Connection Way Each two solar panels in series to become

a line, then all lines in parallel.


Rated Voltage 110VDC

Rated Current 10A


Max Power 1500W



Current Overload 14A

Over current 28A





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Weight 2.10kg


Adaptive Solar

Panel



Connection Way Each three solar panels in series to become




Rated Current 10A





Current

Overload 15A

Over current 18A


Weight 5.0kg


Adaptive Solar

Panel



Connection Way Each eight solar panels in series to become a

line, then all lines in parallel.



Rated Current 12A


Max Power 9500W




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Best Working Voltage 380.0±0.2VDC

Current

Overload 15A

Over current 18A


Weight 8.0kg


Adaptive Solar

Panel



Connection Way Each fifteen solar panels in series to become





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6. DOS AND DON’TS

Do keep the pump under water at all times when operating

Do be careful with wiring

Do remove the pump if not used for a long time and wipe the screw and body. Wipe with vegetable

oil.

Do make sure the pump has adequate water around it during pumping. If the sensors are active for

low water in the well there will be at least a 30 minute delay between pumping sessions.

Do put your solar PV panels in a sunny position facing true north (southern hemisphere) or true south

(northern hemisphere). If the panel angle is fixed then an angle equal to your latitude will be a good

compromise.

Don’t run the pump out of the water, even momentarily. It will void the warranty

Don’t bypass the WH sensor except to troubleshoot

Don’t adjust the regulation bolt in the base of the pump. It is factory set. It will void the warranty.

Don’t use the pump in dirty water. Premature wear will not be covered by warranty.

Don’t disassemble the control box. There are no user parts inside.




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2. PAKING LIST

Open the package and check all the parts have been supplied.

Product List

Solar pump 1pc

OR or

Controller 1pc

Cable Connector 4pcs

Water Level Sensor 2 plus float or 4 sensors

Rope 1pc

Manual 1pc




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Customer record card

Name

Address

Tel

Email

Model number

Date of purchase

Limited 3 year Warranty

1. The manufacturer extends only to the original consumer purchaser a limited warranty against defects in

material and workmanship for a period of three years from the date of purchase. This warranty covers

the pump, controller and sensors.

2. Electrical controller 1 Year Limited warranty, customer card to be received for warranty.

3. The manufacturer or authorized factory representative will repair, or at its option replace any defective

part or parts of the product free of charge. In the event of a malfunction the purchaser must return the

product to an authorized dealer/agent at their expense. The warranty is limited to the repair or

replacement of the product and the manufacturer or it dealers disclaim all liability for indirect and or

consequential damages such as any installation charges.

4. The warranty does not apply when the equipment has not been installed as per the instructions or

damage has occurred through abuse, carelessness, improper installation, accident of mishandling

during shipment, connecting to an improper voltage or it has been serviced by anyone other than an

authorized factory representative.

5. A purchase receipt or invoice for proof of purchase must be presented to claim warranty.

6. All repairs not covered by warranty or outside the warranty period will be charged at normal rates.

7. Note: For warranty purpose “ Customer record card to be send to [email protected]”

Documents

NASS Solar DC Deep Well Pumps · NASS Solar DC Deep Well Pumps ... You may need combinations of series and parallel connections of panels, especially for the larger pumps. The required