X-240 Fan kit

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RobL
Forum Guru
Posts: 319
Joined: Thu Oct 23, 2003 11:01 pm
My RE system: (1) VFX3524, (3) FM60, 4KW PV, Kubota 6.5KW, Honda EU2000, Hub with Mate2, Surrette S430 and S1380 banks wired for 24V. This is my third system. started with a Dunlite 2KW Windcharger into 120V bank of 8D's into Honeywell rotary inverters in 1978.
Location: Vancouver, BC

X-240 Fan kit

Post by RobL »

Just tried to pop a X-240 and fan kit into a PS2AC and I appear to be missing the transformer shroud. I sent off a plaintive note to my supplier but then looking more carefully at the installation drawing it would appear the shroud is designed for the larger PSAC. Is this correct?

If it is, then I humbly ask you to make that more clear in your documentation. If I have no other choice, then I intend to mount the fan over the box vent opening, pressurize the box and vent the hot air out the top through a (screened) 2" opening. I'm wondering if I should derate the transformer down fom the 6kVA (fan-assisted) rating if I don't use the fan shroud? I am using the X-240/fan combo to convert the 240VAC from my 6 kW generator to 120 for the the inverter chargers and my AC loads.

Rob
Scott Payne

Post by Scott Payne »

Rob,
In a PS2AC the x-240 does not use the FAN shroud. A fan can be mounted on the right hand side of the box (right with normal orientation), there is a bump out for the fan on the side.
I'm wondering if I should derate the transformer down fom the 6kVA (fan-assisted) rating if I don't use the fan shroud?
Yes, 6kVA is to much even with the fan mounted in the side of the AC box.
If it is, then I humbly ask you to make that more clear in your documentation.
No need to be humble :lol: Our documentation is our weak point, I encourage everyone to yell and scream about it :wink: Squeaky wheel and all.

Thanks for the feedback,
Scott
RobL
Forum Guru
Posts: 319
Joined: Thu Oct 23, 2003 11:01 pm
My RE system: (1) VFX3524, (3) FM60, 4KW PV, Kubota 6.5KW, Honda EU2000, Hub with Mate2, Surrette S430 and S1380 banks wired for 24V. This is my third system. started with a Dunlite 2KW Windcharger into 120V bank of 8D's into Honeywell rotary inverters in 1978.
Location: Vancouver, BC

Post by RobL »

Thanks Scott,

Yes, the fan fits there nicely. I've got it blowing in and will fabricate an aluminum baffle to force more air up towards the transformer. I punched out a bunch of knockouts out of the box- top and will cover with some screening. Then I'll do the dreaded "hand on the transformer" test and see how long I can keep it there at my 4.8kW design minimum (It's between the generator and the inverters/AC loads as a step-down transformer).

Cheers

Rob
WGB
Forum Junior Member
Posts: 3
Joined: Tue Apr 27, 2010 1:57 pm
My RE system: Outback Series Quad
With VFX3524 inverters

Re: X-240 Fan kit

Post by WGB »

Instead of my hand, I would try an IR thermo gun.
RobL
Forum Guru
Posts: 319
Joined: Thu Oct 23, 2003 11:01 pm
My RE system: (1) VFX3524, (3) FM60, 4KW PV, Kubota 6.5KW, Honda EU2000, Hub with Mate2, Surrette S430 and S1380 banks wired for 24V. This is my third system. started with a Dunlite 2KW Windcharger into 120V bank of 8D's into Honeywell rotary inverters in 1978.
Location: Vancouver, BC

Re: X-240 Fan kit

Post by RobL »

Hi WGB

That was an old old thread...I would love to have had one of those IR guns. The hand was...well...all I had at hand at the time. For the record, the transformer has worked flawlessly all these years. I just bought a second one to run a 240 VAC well pump off the inverters.

Regards

Rob
WGB
Forum Junior Member
Posts: 3
Joined: Tue Apr 27, 2010 1:57 pm
My RE system: Outback Series Quad
With VFX3524 inverters

Re: X-240 Fan kit

Post by WGB »

RobL wrote:Hi WGB

That was an old old thread...I would love to have had one of those IR guns. The hand was...well...all I had at hand at the time. For the record, the transformer has worked flawlessly all these years. I just bought a second one to run a 240 VAC well pump off the inverters.

Regards

Rob
LOL, I guess that was some time ago!
Glad its working for you.
JRHill
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My RE system: VFXR3648, FM80, 3k panels, Mate3s, FNDC, 4ea 3.8 PHIs. EU7000is AGS.
Location: PNW
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Re:

Post by JRHill »

RobL wrote:see how long I can keep it there at my 4.8kW design minimum
Yup, since 2003 you should have a good idea of how many watts you can run through the X-240? ;-) I'm just curious as in the winter, the only continuous load on this step down circuit from the genset would be for battery charging and that is only 20 amps @ 120v, when active. Obviously, there are minor household loads too. Last winter season I had the AC current limit set at 29 AAC (3480w) and even with a 25a breaker, it never tripped. I don't have a fan on it but it is with the rest of the stuff in a crawl space which is chilly on the winter.

Just curious as 4.8kW seemed a bit of a stretch over margins of safety.

Thx,
Jim
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