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Marcb

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  1. Well, that phone number was another dead end. I never got one piece of useful information from Bosch so I will need to be creative
  2. Yes Herman, it's the same kit. I have obtained a phone number from Bosch for their South African Solar Energy Team. Will try next week. Other wise, as you said, it will be trial and error.
  3. Hi Antony, The pamphlet I got with it also says "Adjusting thermostatic valves: The thermostatic valves included in the solar kit come sealed and are both preset to 45°C. Should you wish to modify these settings, please contact a qualified technician". I tried to find a knowledgeable technician here and also contacted Bosch in Germany. Dead ends both ways. I believe the valves use heat sensitive springs and the way they are adjusted by moving the nut is pretty obvious. I just do not know which way to turn each one to obtain a temperature increase and also keep both valves "synchronised". I will try to post photos.
  4. Hi there, I have installed a Bosch solar kit in a hybrid system comprising a solar water heater and a backup gas geyser. This thermostatic temperature control system works well, but the factory setting is 45° C. This is way too cold for me. Does anybody know how to adjust the temperature of this mixing device? I can see two adjusting nuts, one each on the two control valves, but I have no idea about how to use them. Google is not much help either :) Any help would be appreciated.
  5. Hi again, Where can I find a list of reliable photovoltaic systems installers in the Pretoria area? Do any advertise on this site? Tx,
  6. That 4% I can get with relatively minor cost and trouble. I'll take it. Look at the whole country up in arms for a 1% only increase in VAT
  7. Yes, 4 adjustments even better! The usefulness is indicated in the table earlier in this thread and the increase in power available will come in handy, as you said, for air conditioning and other devices such as pool pumps, which run more in summer. Heaters in winter also. I still would like to know if manually adjustable frames exist or if there are diy plans to make them.
  8. Interesting discussion. My roof is orientated North and dips about 2 deg. Are there "single axis" manually adjustable frames which could take a string of 6 panels? I think that I would adjust by 20 deg increments i.e. 3 (summer), 23, 42 (in winter) then the same backwards to summer. Thus 5 adjustments per year, which is manageable. Thanks.
  9. Food for thought, Sidewinder. I thought that I would max out my roof area as it will be more cost effective per W installed. I need about 2 500 W peak during the day with a grid tied system to get some power at night. Thinking of the future when our mayor will implement his co-generation plans. Well, that's what he said anyways. I'm looking at a Danfoss ULX 3600 inverter with max PV system input of 3 900 W. Anybody with experience on this hardware? Any other suggestion?
  10. Hi Jakes, Two rows of 6 as I have to keep a gap between the rows to avoid shading in Winter (sun at 40° elevation).
  11. Hi all, I have a flat roof (well, it dips about 4° to the North) 6 m long (East to West) and 5 m wide (North to South). If I cover it with photo voltaic panels, what maximum total kW output can I expect ignoring cabling to the inverter? I was thinking of 12 x 320 W (or thereabout) panels, which are about 1m x 2m each and would fit nicely. Assume ideal conditions e.g. full sun, optimal panel orientation etc. Thanks, Marc.
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