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GRIDFREE TINY HOUSE HYBRID Installation Manual

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Summary of Contents for GRIDFREE TINY HOUSE HYBRID

  • Page 2 You cannot legally DIY these steps. We are always happy to help guide you through the install, troubleshoot, and answer any questions. You can contact us on 09 218 5533, or info@gridfree.store. We recommend reading these instructions in full prior to starting your install.

  • Page 3: Kit Contents

    K I T C ON T EN T S 25mm Cable 3m Pre-Crimped (Red+Black) Solar PV Cable pair 10m - MC4 (Female, Red + Male, Black) 50mm Battery Link Cable 20cm (Blue) 3x Z-Bracket Solar Mount...
  • Page 4 The “C” label is the same as the Amp “A” label of the breaker. 15A DC Circuit Breaker 125A MCCB Growatt 5KW Hybrid Inverter...

  • Page 5: Required Tools

    2x 12v200Ah Deep Cycle Gel Battery 4x PERC MONO Solar Panel R E QU IR E D TOO LS Drill Screw Drivers 6mm Allen Key Wire Strippers 13mm Spanner Socket Set...

  • Page 6: Wiring Overview

    W I R IN G OVE RV I E W...

  • Page 7: S O La R Pa N El W Ir I N G

    S O LA R PA N EL W IR I N G...
  • Page 10 S O LA R PA N EL W IR I N G DO NOT connect the cable run to the solar panels until all solar wiring is complete. Run the solar cables to the C25 circuit breakers, and cut it to length. Run the 6mm solar cables from the solar panels back to the C15 circuit breakers, and cut it to length.
  • Page 11 Indicator is green, showing the circuit breakers are switched off. Ensure the solar cable run is NOT connected to the solar panels, and the circuit breakers are switched off (showing green, switch down). Use wire strippers to strip the ends of the solar cable, and terminate them in the circuit breaker by inserting the stripped end and tightening the screw clockwise.
  • Page 12 Now connect the cable run to the solar panels. Ensure the circuit breaker is switched off. When the cables have been terminated in the circuit breaker, and the circuit breaker is switched off, you can now connect the solar panels to the cable run. The circuit breaker must be switched off when connecting or disconnecting the solar panels from the cable run.
  • Page 13 C HA RG E CO N TRO LLE R & I N VE RT E R WI R I N G Tiny House kit Hybrid Manual - Charge Controller and Inverter Wiring- Page 11 Run the positive and negative cables from the C15 circuit breaker to the hybrid inverter.
  • Page 14 Ensure breakers are switched off, in the down position, showing a green indicator. Off position Ensure all circuit breakers are switched off (switch in the down position, indicator showing green) before wiring.
  • Page 15 Tiny House kit Hybrid Manual - Charge Controller and Inverter Wiring- Drawing 1, Page 13 Wire the positive (+) 25mm cable from the hybrid inverter to the 125A MCCB circuit breaker. Tiny House kit Hybrid Manual - Charge Controller and Inverter Wiring- Drawing 2, Page 13 Wire the negative (-) 25mm cable from the hybrid inverter to the 125A MCCB circuit breaker.
  • Page 16 BAT TE RY BAN K S ET U P A N D W I R I NG Battery link cable The battery bank is wired with two 12V batteries in series, this creates a 24V battery bank. The large gauge cable is used to connect the batteries together and used to connect to the hybrid inverter. Wire the two batteries together from negative to positive with the blue battery link cable.
  • Page 17 Once you’ve wired the batteries into the hybrid inverter, this is how your completed DIY wiring should look (excluding the panels). Double check everything is wired correctly and tightened before proceeding, to prevent damage to your system. Further steps will legally require an electrician.
  • Page 18 If using the utility / generator input, use AC cable rated for 40A. If using a plug, use a 32A rated plug. The hybrid inverter does not have an earth to neutral connection. This connection can be made at the main distribution board, unless the system is being used with a generator that also has a earth neutral connection.

  • Page 19: Start-Up Procedure

    S TA RT UP P RO CE DU R E Switch on the circuit breakers in the following order. First switch on the battery to hybrid inverter breaker 125A MCCB. Then, the panels to the hybrid inverter C15. 105v The Green LED on the PV Charge should flash, and the panel voltage should be around 105V in full sunlight.
  • Page 20 WIFI/GPRS NC C NO PV INPUT AC INPUT INPUT RS485 BREAKER DC INPUT AC OUTPUT Flick the “ON” switch located on the bottom of the hybrid inverter, and refer to page 12 of the hybrid inverter manual to ensure normal operation. The system is now fully functional.
  • Page 21 G E TT IN G T HE M O S T O U T O F YO U R KIT Battery 24.4v To get the most life out of your batteries they should not be discharged lower than 50%. You can check the state of charge of the batteries on the hybrid inverter. Make sure the hybrid inverter is on this screen pictured above by pressing the UP/DOWN button.

  • Page 22: Bat Te Ry Car E In Fo R Mat Io N

    BAT TE RY CAR E IN FO R MAT IO N What is Battery Cycle Life and Depth of Discharge? Depth of Discharge is how much energy is discharged from the battery before it is charged to 100% again. A common measurement is battery cycle life, at 50% D.O.D (Depth of Discharge). At 50% DOD the battery has 50% of its energy capacity discharged, before it begins charging again.

  • Page 23: Troubleshooting Guide

    T ROU BL ES H OOT IN G G U I D E We’ve compiled this list of common problems our customers may encounter with their solar gear to help you solve any issues as fast as possible. If you don’t find the answers you need here, or your issue continues after implementing the given solution, please get in touch.
  • Page 24 5. My batteries drain very fast when the sun goes down The hybrid inverter may read 100% while charging at the higher voltage, but then it will quickly drop down lower when there is no charge applied. This could be because the batteries charge at a higher voltage, so when the sun goes down the battery voltage will stabilize at a lower level.
  • Page 25 C O NTAC T U S Our website: gridfree.store Email us: info@gridfree.store Message us on Facebook: @GridFree.Store Give us a call: (09) 218 5533 Address: By Appointment– C4/27 Smales Road, East Tāmaki, Auckland, 2013 Hours: 9am-5pm, Monday-Friday Kit viewings, demos, and pick ups at Auckland warehouse by appointment only.

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