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 > Your search for posts made by 'pianotuna' found 4057 matches.

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RE: Atwood Hot Water Drain Plug

Hi, I guess they never heard of the pressure relief valve in the course. That plastic plug is designed to blow out if the presure is too high. I took an RV tech course and they told me not to replace to with the butterfly valve.
pianotuna 04/23/14 11:05pm Travel Trailers
RE: Are surge guards necessary?

Hi, If you have a 30 amp service protection is not so very necessary, provided you check voltage and polarity before you plug in. 50 amp units can be damaged instantly by a bad neutral, so I'd consider it a good idea to have a top of the line energy management system.
pianotuna 04/23/14 08:14pm Tech Issues
a new url to find places to stay

Hi, This site covers Canada too! http://www.rvtransit.com/index-en.php
pianotuna 04/23/14 07:52pm Roads and Routes
RE: AGM Batt on Trickle Charge?

Hi, The other route is a charge controller with a battery temperature probe. It will cost more but it will provide optimal voltage all the time.
pianotuna 04/23/14 07:19pm Tech Issues
RE: Mounting solar panels on fiberglass roof

Hi, I agree with Westend.
pianotuna 04/23/14 07:10pm Do It Yourself Modifications and Upgrades (DIY)
RE: Battery Charge Requirements

Hi red31, Well said. Amperage stays as high as it can until the voltage "pushing back" from the battery causes the controller to drop it down. 14.8 volts would be a good number for flooded bats.
pianotuna 04/23/14 07:04pm Tech Issues
RE: Trimetric Install With an Enclosed Underbelly?

Hi, Victron does a Peukert Calculation. Trimetric does not. Victron is cheaper than Trimetric. Both of them require you to enter a value for capacity. That is a moving target so it is a "best guess" situation. Both of them drift (but the Victron drifts less). A smart Gauge would be better than either but I've not been able to source a North American supplier. I don't like either of them. I prefer a simple volt meter and LOTS of battery bank. Canuck, The Victron only uses RJ47 station cable. That can be hard to put through small holes unless you have the tool to put the ends on. I am not sure why Piano thinks it is a better instrument. Matt
pianotuna 04/23/14 05:55pm Tech Issues
RE: Battery Charge Requirements

Hi, Let us suppose the battery voltage is 11.7 (god forbid). If you attach a PWM charge controller the voltage will appear to be 11.7, at least initially. As the battery charges the voltage will rise. Once the battery bank is 90% charged then the voltage will be say (this is hypothetical and a guess) 13.2. Eventually when the bank is 99% that will rise. Probably the charge controller at that point will scale back the voltage (if it is a good one). My original solar system on a previous RV had an old shunt type controller. When the voltage got high enough it would turn on and off. MPPT works a little differently--depending on where you are in the state of charge. 260 watts of solar is going to be enough to do a GREAT job on the batteries--but don't "cheap out" on the controller. Buy a quality unit. PWM will do a good job for you. At 130 watts I'd wish to see you use an MPPT controller. I'd also prefer to see 140 watts instead of 130. On my first solar system I had just 30 watts to maintain 250 amp-hours of battery bank. It worked well, because it was several weeks between trips and the solar had enough time to "top charge" the battery bank. I did not buy it--but that 30 watt system cost $1400.00. Hi, PWM controllers operate at the battery voltage. Pianotuna, I don't understand the 2nd part of this response, please elaborate. Looked like you set the controller for the type of battery which then uses the applicable settings. On some you can choose custom setting and set them to whatever you want up to the units max. I am planning on just one panel to start and will see how it works out, we're not heavy consumers so hopefully one is enough. One panel that fits (narrow), would be either 100 or 130w's. Still have to measure for length.
pianotuna 04/23/14 05:43pm Tech Issues
RE: Induction Cooking

Hi SWMO, No, the NuWave is not "on or off". It appears to cycle through various power levels, once it reaches the temperature setting. Check it with a kill-a-watt unit and you will see what I mean.
pianotuna 04/23/14 03:04pm Camp Cooks and Connoisseurs
RE: Induction Cooking

Hi, What is best about the NuWave is the multiple power levels. I've not managed to burn anything since I got mine. At the 200 F setting it is interesting to see the unit cycle on the watts it draws. It changes pretty rapidly in a sort of "dance" from 7 to 295 to 585 to 695 and then circles back to the 7 watt setting again. I wonder how my generator will respond to that.
pianotuna 04/23/14 12:19pm Camp Cooks and Connoisseurs
RE: Battery Charge Requirements

Hi, With the number of watts planned for there is no need to by pass the controller.
pianotuna 04/23/14 09:08am Tech Issues
RE: Battery Charge Requirements

Hi, 12 volt panels are nominally 17 volts. PWM controllers operate at the battery voltage.
pianotuna 04/23/14 08:07am Tech Issues
RE: Induction Cooking

I use a magnet to test.
pianotuna 04/23/14 08:02am Camp Cooks and Connoisseurs
RE: Atwood Hot Water Drain Plug

Hi, What is a full port plug valve?
pianotuna 04/23/14 07:04am Travel Trailers
RE: PWM vs MPPT Test Results

Hi, It would be interesting to see how a top of the line mppt unit fared against a top of the line pwm. For example a Tristar 45 amp mppt vs a Tristar 45 amp pwm.
pianotuna 04/22/14 09:31pm Tech Issues
RE: Battery Tender Jr. fine to maintain my two 6-Volt batteries?

Tender jr will be fine. Solar would be even better.
pianotuna 04/22/14 07:43pm Travel Trailers
RE: PWM vs MPPT Test Results

Hi BFL13, Converted to percentage 9.200/10.07 ~= 8.7 % more 11.85/12.74 ~= 8.7 % more 13.44/15.32 ~= 12.2 % more 14.50/16.65 ~= 12.2 % more I could at last compare the amps I got with an equivalent 230w on PWM. Result was a slight MPPT advantage in amps. EG 9.2/10.07, 11.85/12.74, 13.44/15.32, and 14.50/16.65 going from am-high noon.
pianotuna 04/22/14 04:54pm Tech Issues
RE: dual pane windows on an RV

Hi Big K, My RV is from 2003 and none of the dual panes have failed or fogged.
pianotuna 04/22/14 04:29pm General RVing Issues
RE: 50 amp plug hitting power panel lip

Hi, This looks like a 50 amp solution: http://www.amazon.com/gp/product/B000PGVZ30/ref=s9_cxhsh_co_g263_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=left-3&pf_rd_r=0XFSW6TSRK1CFH1E3P24&pf_rd_t=3201&pf_rd_p=1774864582&pf_rd_i=typ01
pianotuna 04/22/14 04:25pm Tech Issues
RE: dual pane windows on an RV

Hi, Dual pane keep the warm in and the hot out. They also reduce noise levels. Where I live single pane would BE a pain.
pianotuna 04/22/14 03:40pm General RVing Issues
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