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Peter_1
22-03-2007, 08:05 AM
Saw yesterday the world first - it should have been the world premiere they said - Zuba Dan of Mitsubsihi Electric.
Constant heating capacity till -25°C (-13°F) (!!), a 20 to 30% higher capacity (forgot the right numbers) then a comparable inverter unit, a heating up time till 45°C (113°F) in 9 minutes where you need 14 minutes now, 50°C (122°F) discharge air in 14 minutes where the other units can go only to a max of 45°C (113°F).
They've done this via 3 EEV's, a power receiver (suction accumulator with a coil in it to subcool the liquid) and an intermediate HE and intermediate injection in the compressor (similar to the freezer scrolls of Copeland)

They made some sort of an external 2 stage with a scroll.

The rather small presentation went very fast and it wasn't allowed to fire some questions.

I know the Belgium owner very well because we live in your youth at 1/2 mile from eah other and he promised he should send me some more information one of these days.
I searched already the net but couldn't find anything.

Josip
22-03-2007, 12:44 PM
Hi, Peter_1 :)

Found this here: Slovakian page

http://www.mitsubishi-electric.sk/index.php?object_64/product_112/product_115



- Nové inverterové vonkajšie jednotky – rozšírenie rady Power Inverter
New inverter outside units - Type Power Invereter

- Tri výkonové modely: 7,1 / 10,0 / 12,5 kW v chladení 8,0 / 11,2 / 14,0 kW v kúrení
3 Models
7,1/10,0/12,5 kW cooling
8,0/11,2/14,0 kW heating

- Označenie PUHZ-HRP71/100/125
Name plate PUHZ-HRP71/100/125

- Do –15°C vonkajšej teploty kúri s nom. výkonom !!!
Down to –15°C heating up to nominal values

- Garantovaná funkcia kúrenia do –20°C (možná do –25°C) vonkajšej teploty !
Guaranteed function of heating down to –20°C (possible down to –25°C)

- Vysoké COP pri – 20°C
High COP at –20°C

- Chladiaci okruh je osadený špeciálnym dvojstupňovým kompresorom
Cooling circle with special 2 stage compressor

- Bližšie technické info čoskoro
More technical info soon;)

Description is not saying too much, but...

Best regards, Josip :)

Peter_1
22-03-2007, 01:08 PM
They (Belgium imorter) promised me the PP presentation with the H-logP plotted on it and the inner parts of this new machine.
It seemed to me an external two stage 'invention'/cooling cycle.

The machine was there and completely opened but I had now camera with me to make some pictures.

Peter_1
22-03-2007, 01:11 PM
http://www.nowoczesnydom.pl/instalacje/2-19-spons.htm
polish posters here??