Carrier R-410A Especificaciones descargar pdf (Pagina 8)

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Compressor development

and ecology.

Compressor development

and ecology.

Conventional 2-in-1 scroll

(R407C)

Consists of one inverter-driven

compressor and one fixed-speed

compressor. Each scroll

compressor comprises a fixed

scroll (spiral) and an oscillating

scroll. The oscillating scroll fits

within the fixed scr

oll. Refrigerant

is drawn from the outside of the

meshing spirals and squeezed

towards the centre of the scrolls,

thereby pressurising the refrigerant.

To minimise leakage, the contact

force required between the two

scrolls is considerable and the

scroll surfaces must be ubricated.

At low compressor speeds

lubrication efficiency is reduced,

resulting in increased compressor

wear.

Dual DC twin-rotary

(R410A)

Consists of two inverter-driven

twin-rotary compressors.

A twin-rotary compressor has two

fixed compression chambers.

An off-centre roller orbits each

chamber to squeeze the refrigerant.

The two r

ollers are both mounted

on the same shaft, but are offset

to provide counter balance

to each other. The contact force

required between the roller

and chamber wall is lowered.

This means that smaller bearings

can be used and lubrication

demand is reduced, saving weight

and making this type of compressor

more suited to lowspeed operation.

Benefits of using

R410A refrigerant.

Benefits of using

R410A refrigerant.

Incorporating the energy-

efficient, non-ozone-depleting

R410A refrigerant in air

conditioning systems delivers

multiple benefits:

• zero ozone-depleting

potential.

• significant increase

in energy efficiency.

• reduced pressure loss

for improved performance.

2-in-1 scroll

Standard

92 kg x 1 (100%)

50 l (100%)

(100%)

Compressor

Efficiency

Weight (comparative, %)

V

olume (comparative, %)

Lubrication requirement

DC twin-rotary

20% improved

25.2 kg x 2 (55%)

15 l (30%)

(2.5%) = 1/40

Benefit

Greater energy savings

Lighter

and mor

e compact

Higher reliability

Leading Technologies

Care of the environment

Blend of two

types with similar

boiling points

Approximately same

boiling point

High boiling point

Blend of three

types with

different

boiling points

Degradation

likely

Degradation

unlikely

R410A

R32 R125 R134a

R407C

Comparison of refrigerant

boiling points (liquid and gas)

New Dual DC twin-r

otary

compressors

Lubrificant

indispensable

Oil

Flow of oil

Oil Flow of oil

High

str

ength

AC

fixed speed

compr

essor

AC

inverter

compr

essor

DC

inverter

compressor

DC

inverter

compr

essor

Oil

r

egulating

pipes

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 63 64

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