[RE-wrenches] 230Vac load on OB FX2524T system

[David Palumbo]

The heat pump is a made for USA product that operates on 1ph 60Hz and with an acceptable voltage range of 210 to 253Vac. I don’t know why they list it as 230Vac, could have listed it as 240Vac. Same thing as loads that are either listed as 115Vac or 120Vac, not much real world difference. With typical utility voltages and with line loss going out to the heat pump actual voltage at the load is more likely closer to 230Vac than to 240Vac.
Dave Palumbo

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From: Glenn Burt
Sent: Thursday, July 25, 2019 1:53 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] 230Vac load on OB FX2524T system

If you are talking about two 120VAC legs, then the split phase voltage is 240V, not 230V which is what you would see as a standard in Europe not here.

From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> On Behalf Of David Palumbo
Sent: Thursday, July 25, 2019 12:48 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Subject: Re: [RE-wrenches] 230Vac load on OB FX2524T system

It is a standard 60Hz 230Vac unit

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From: Kirpal
Sent: Thursday, July 25, 2019 12:45 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] 230Vac load on OB FX2524T system

Is the mini split European voltage where it is 230v line 1 to neutral......Outback makes inverters for that too.... 50 hz?
Kirpal

On Wed, Jul 24, 2019, 11:06 PM David Palumbo <palumbo131m at gmail.com> wrote:
I apologize for my ignorance on this issue, but in all my years I have never had to power a 230V load with an OutBack system before. 
A couple of quick questions. It is a 8 year old OutBack system with two FX2524T’s presently powering two 120Vac legs with no 240Vac output.
• Homeowner is adding a Fujitsu mini split heat pump for air conditioning the home (summers are getting hot enough for AC even in northern Vermont). 
• It uses 7.9 Amps @ 230Vac 
• I have a OB PSX-240 Autoformer manufactured in 2008 in my inventory here. Should I use it for this application?
• Do I wire it up just like in this schematic?
• If so, what do I change in the programing on the Mate?  Presently it is ADV/FX/STACK  stack 1-2ph Master. Do I simply change it to  ADV/FX/STACK  stack Classic Slave?
Thanks,
Dave Palumbo, Independent Power, Hyde Park, VT
 

 
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