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Topic Title: Masterguard Chloride Linear Mk2 20kva UPS
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Created On: 28 October 2017 08:57 PM
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 28 October 2017 08:57 PM
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Martynduerden

Posts: 3235
Joined: 13 July 2008

Hello,

I have been installing one of these recently and unfortunatly its playing up, its a. It of a beast for a domestic place, still the client bought it at a good price!

Does anyone have specific knowledge on Chloride units of even a service manual?

Scoured the web to no avail, (6-11kVA units are very differant to the 20kVA)

Thanks.

Martyn

-------------------------
Regards

Martyn.

Only a mediocre person is always at their best
 30 October 2017 09:25 AM
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dgmeica

Posts: 42
Joined: 08 October 2006

Martyn,

Can't help with specifics but check pm
 30 October 2017 11:09 AM
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Martynduerden

Posts: 3235
Joined: 13 July 2008

Perfect - thanks very much.

-------------------------
Regards

Martyn.

Only a mediocre person is always at their best
 31 October 2017 08:34 AM
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dgmeica

Posts: 42
Joined: 08 October 2006

No worries.

Out of interest, what are the problems you are encountering?
 31 October 2017 07:07 PM
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Martynduerden

Posts: 3235
Joined: 13 July 2008

Two fold at the moment, (fault indication alternates between two seperate issues)

Only now known thanks to your manual...

First issue was/is over heat alarm 5-10s after power on, manual gives a few options for testing & visual inspection.

Secondly, apparent mains fail, the internal fuses are all good, Im hoping to be back there at the weekend armed with the Service manual.

I will let you know the outcome.

Thanks again

-------------------------
Regards

Martyn.

Only a mediocre person is always at their best
 31 October 2017 08:08 PM
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mapj1

Posts: 9574
Joined: 22 July 2004

Did you set up to run in double conversion mode all the time - that is the inverter part is always on, and the mains is supplying a batter charger that may be on or not ? The alternative is a change-over mode, where the UPS inverter part only takes the load if the mains fails. some have it as a config option, I am not familiar with this specific model.
If in double conversion mode the cooling of the inverter, and to a lesser extent the battery trays and charger is critical, as it is on for many days at a time, and the cooling may or may not involve fans that have sensors so they cut in and out as needed (or even proportional speed control)
Before looking for anything super complex, try for blocked airflow or filters,(or all rushing past the key parts taking a shortcut because a baffle has slipped) don't rule out an installation mis-assembly. Then if fans are not turning when they should look for the sensors. Freezer spray and a warm air gun (only warm, NOT on "strip paint" setting) to change the sensor temperature up and down a bit can reveal a lot.
Big ones have sensors both near heatsinks and in the battery trays.

-------------------------
regards Mike
 01 November 2017 09:39 AM
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Martynduerden

Posts: 3235
Joined: 13 July 2008

Hi Mike,

The option you suggest does not seem to be available.

Its so unlikely to be an overheat fault, the unit is virtually outside and so far has. Ot been powered on for more than two minutes.

Unfortunatly its not a new unit, rather one which has not been used but stored for several years and fiddled with.

It was cheap to the client and indeed looks brand new.

If it is possible to repair/rectify it will be used more like a genarator than a Ups, that is a GCP will fail over to it and keep the systems alive. Major benefit being we can limit switch over to the mechanical operation time of the contactors rather than that of a genny starting up

-------------------------
Regards

Martyn.

Only a mediocre person is always at their best
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