sunny boy

  1. T

    Sunny Boy Inverter Topology

    Out of 10 sales pitches, only 3 companies passed the BS test. My prefered option, salesman strongly recommended Sunny Boy Transformerless Inverter, now the quote has arrived stating SB3000HF (for a 3.5kwp Sanyo HIT panel array). Is this transformerless? I was expecting to see a TL model. I...
  2. W

    400TL Sunny Boy

    When using these inverters I've been told you have to ground the array with an earth spike ( not using the MET) and install a 100 ma RCD.
  3. W

    Sunny boy software

    Hi, Im trying to match an inverter to 9 Suntech 190 24AD+ Mono panels. It wont allow 9 in one string but will allow 2 strings of 4. I'm trying to get it to show 1 string of 4 and 1 string of 5, is this possibe or am I not using the software properly? TIA Woko
  4. B

    SMA 1200 Sunny boy not working

    Hi I have installed our first PV system, which we are using to get MCS accredited with. Its a small 5 panel system as roof space is quite small. The panels are 195w each. The Voc for the panels @ STC is 45.21V and Isc @ STC 5.56A. Our measured Voc on the day of commissioning was 211V. I thought...
  5. S

    Additional Grounding of the Sunny boy 3300

    Hi All Still very new to this game and was wondering if Anyone knows if you have to separately Bond the inverter, particularly the sunny boy 3300. I See It has a separate terminal lug for bonding, But have never seen any one use it. Any Help would be greatly appreciated as I have my Inspection...
  6. SolarCity

    Intermittent disturbance on Sunny Boy inverter

    Has anyone had any issues with Sunny Boy inverters before? We've had one playing up on us for the last couple of weeks. On a couple of occassions now, we have had "Disturbance" come up on the inverter. I haven't been there to witness it so can't give any more information. The inverter has...
  7. S

    how to sync a sunny boy 4000tl to a sunny beam wireless screen

    hi i am having trouble syncing a sma sunny boy 4000tl to a sunny bea, wireless screen via bluetooth i have set the sma inverter to positions 1 but they dont seem to sync, is there anything i am missing out
  8. S

    Sunny Boy SB 3800

    Hi I'm an electrician who has done the C&G 2372 and am starting to put together a PV installation for my MCS. Needless to say, despite the 2372 which was about passing an exam rather than any form of learning, i have gaps in my knowledge which i am trying to fill. My question is about the...
  9. B

    sunny boy and connectors

    Installing a sunny boy at the moment. I thought all the connectors would be the MC4 type that replaced the MC3 ones. There seems to be some new ones that look simple to make off which came with the sunny boy. Is this sounding correct, the price of the dc crimpers are £300ish. These look an...

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