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4.7  Motor Wir ing Or der for Corr ect Rotation

WARNING    If the pump wires are in the wrong order, the motor will run in reverse. This may
cause the impeller to spin off and “crash”, causing damage. Test the pump for proper direction
before allowing it to come up to full speed (takes 15 seconds).

The proper direction is CLOCKWISE when viewed from the REAR of the motor.

WARNING    Do not run the pump dry. Fill the pump at least half-way with water before testing for
direction.

The motor receives 3-phase AC power from the controller. This requires three power wires. If they are
not in the proper order, the motor will rotate in reverse direction.

The motor wires inside the motor junction box are labeled L1, L2 and L3. (L1 is closest to the motor.)
Connect each one to the corresponding “pump” terminals in the controller.

To make secure connections in the motor junction box, invert one of the two U-brackets on each terminal
bolt. The brackets should couple together so they trap the wire securely.

Confirm the direction

    When first starting the motor, remove the rubber plug from the rear-center of

the motor, and observe the shaft rotation. It should turn CLOCKWISE as viewed from the rear of the
motor.

The motor starts very slowly

   It takes 15 seconds to reach full speed. If the direction is reversed,

STOP THE PUMP before it reaches full speed, or the impeller may spin off and “crash”.

If the direction is reversed, exchange ANY TWO of the power wires, either at the motor or in the
controller.

Alternative: Connect the power wires to the controller in ANY random order. Apply power. Observe the
pump shaft rotation as the pump starts.  If the direction is wrong, stop the pump immediately and
exchange ANY TWO of the power wires.

4.8  Pum p Motor Bonding and Grounding

WARNING   Electrical wiring should be performed by a licensed electrician in accordance with
local, state and national codes.  Be certain that the motor frame is grounded. Do not connect to
electric power supply until unit is permanently grounded to earth and bonded to the pool
structure.

Bonding

    TO REDUCE RISK OF ELECTRICAL SHOCK, a bonding connector is provided for bonding

to metal water pipes, metal rails, or other metal within 5 feet of the swimming pool.  All local points
should be bonded with a #8 AWG wire. As required by National Electrical Code Article 690-22, the pump
motor must be electrically bonded to the pool structure (reinforced bars, etc.) by a solid copper conductor
not smaller than #8 AWG via an external copper bonding lug on the pump motor.

GROUNDING

   TO REDUCE RISK OF ELECTRICAL SHOCK, connect ground wires to grounding screw

located in the motor.  Use no smaller than a #12 AWG wire.

Содержание SunCentric P

Страница 1: ...Instruction Manual Solar Powered Centrifugal Pump for swimming pools agriculture more Dankoff Solar Products Inc Santa Fe NM USA 505 473 3800 888 396 6611 www dankoffsolar com C entric un S TM P 1 1...

Страница 2: ...ing and Grounding 16 4 9 Low Water Probe for Dry Run Protection 17 4 10 External ON OFF Switching 17 4 11 Automatic Control For Full Tank Shutoff 19 4 12 AC Backup 21 5 SWIMMING POOL SYSTEMS 22 5 1 Th...

Страница 3: ...r or the controller Install proper system grounding for safety and lightning protection See Section 4 2 Do not touch the controller input or pump wires together to test for a spark Do not run the pump...

Страница 4: ...lar exposure of the solar array is critical for the performance of a solar direct system Choose a location for the solar array that has unrestricted sun exposure through the day and through the year T...

Страница 5: ...he tracker pipe was extended to about 10 feet 3m by welding it to a larger pipe The array was assembled and wired on the ground then lifted and lowered onto the pole with the help of a backhoe and cha...

Страница 6: ...ow No magnetic compass needed Sun Compass Instructions 1 Draw an arrow from Month dot to intersection of your Standard Time and Latitude The gray line is an example August 2 PM at 40 N lat 2 Stand and...

Страница 7: ...oduction will be increased by about 8 in summer 5 in winter compared to option 1 There is less advantage in a cloudier climate If adjustment is difficult or is likely to be forgotten this is not a goo...

Страница 8: ...heating This may also allow easiest access without hitting your head on the lower south edge of the array Junction box A pre wired junction box is included with your system The junction box terminals...

Страница 9: ...on to confirm that it is secure PHOTO GALLERY Illustrated on the next pages is a 300 watt solar direct system with a pole mount The pump controller and the junction box are installed on the pole The a...

Страница 10: ...eliminates need for lugs slotted strut Unistrut or equivalent cut to the width of the box conduit clamp to fit slotted strut hose clamp Typical assembly of the controller and junction box on the sola...

Страница 11: ...etc 2 Install a copper plate or other specialized grounding devices designed for the purpose Some systems use salts to improve the conductivity of the surrounding soil 3 Install one or more copper pla...

Страница 12: ...system ungrounded This is called a floating system Explanation With a floating system and a good structural ground lightning induced surges tend to reach ground through the structure instead of the po...

Страница 13: ...ailures are caused by loose corroded or shorted connections PHOTOS show two types of PV module junction systems TOP Quick connect system using MC connectors BOTTOM Conventional junction box with condu...

Страница 14: ...r to the controller Voltage open circuit must not exceed 90V Even in cloudy weather the open circuit voltage will be near maximum WARNING Some thin film modules panels may produce excessive voltage es...

Страница 15: ...aximum RPM setting 1 Remove the bottom end of the EP 600A controller enclosure the end with the conduit openings 2 Locate the adjustment knob shown in the photo below circled 3 In most cases the knob...

Страница 16: ...akes 15 seconds to reach full speed If the direction is reversed STOP THE PUMP before it reaches full speed or the impeller may spin off and crash If the direction is reversed exchange ANY TWO of the...

Страница 17: ...probe wires to the low water probe terminals 1 and 2 Operation The probe senses electrical conductivity through the water between two electrodes If the water level drops below the probe continuity is...

Страница 18: ...N Other switches use normal to describe the position that makes a device turn OFF Switch contact ratings The remote switch circuit uses 12V at very low current measured in milliamps Contact ratings ar...

Страница 19: ...air shielded cable to reduce the chance of damage from lightning induced surge See Section 4 2 Grounding and Lightning Protection Float Switch Cable from Dankoff Solar Products Item 10326 meets these...

Страница 20: ...ing If you are not using a float switch terminals 4 and 5 must be connected Terminal 3 remains disconnected The product is pre wired this way at the factory Operation of the float switch system When t...

Страница 21: ...n parallel connect the pump intakes together using a Y or a sweeping T fitting Install a check valve at each pump s outlet to prevent one pump from bypassing the other Finally connect the check valve...

Страница 22: ...to increase Typical back pressure for a pool system is around 15 psi 1 bar Consider these suggestions to reduce the back pressure and increase the flow rate Efficient filtration Choose the filter care...

Страница 23: ...al AC pool pump parallel to the solar pump Turn it on when the cleaner is needed If the solar installation is a retrofit this can be the original filter pump See Section 4 9 AC Backup B Add an accesso...

Страница 24: ...unions To connect ABS pipe to the pump unions use cement that is approved for ABS pipe To connect PVC pipe to the pump unions use cement that is approved for connection of BOTH materials It is called...

Страница 25: ...from any local pump supplier To prevent air from being drawn into suction pipe due to a suction whirlpool the foot valve may need to be submerged as much as three feet 1 m below the low water level T...

Страница 26: ...lso be actuated by a manual switch timer thermostat etc Re label it if necessary BATTERY SYSTEMS ONLY BATTERY LOW tank light flashes Battery systems only battery voltage fell to 22V or 44V and has not...

Страница 27: ...g of the strainer basket Strainer basket To remove debris from the strainer basket unscrew the lock ring and the clear lid and lift out the basket Never operate the pump without the strainer basket If...

Страница 28: ...ies with the season Some people adjust the tilt twice per year Other people set it at a single setting as a permanent compromise Section 3 5 for details Solar Tracker If the system uses a solar tracke...

Страница 29: ...8 5 Exploded View of Pump...

Страница 30: ...2921141255 9 1 O RING DIFFUSER 98 x 5mm 2920117420 10 1 DIFFUSER 2921151105 10 1 1 ADAPTOR RING 2921123005 11 1 IMPELLER 12 2920143310 12 1 MECHANICAL SEAL 14mm 2921141220 13 1 O RING CASING 190 x 5 5...

Страница 31: ...d start if the supply voltage is greater than 22V 24V system or 44V 48V system 2 If the pump was recently connected or reconnected to the controller it may be running in reverse direction due to wirin...

Страница 32: ...y This is merely idle voltage It is high because no current is being drawn it sees no load 2 VOLTAGE UNDER LOAD with pump running This should be 60 73V with a 48V nominal array or 45 55V with 36V nomi...

Страница 33: ...00 MW that means 100 million or 100 megohms A lower reading indicates an insulation fault in a power wire to the pump 9 4 If The Pump Runs But Flow Is Less Than Normal 1 Is the solar array receiving s...

Страница 34: ...covered under warranty Product liability except where mandated by law is limited to repair or replacement at the discretion of the manufacturer Manufacturer is not responsible for incidental or conseq...

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