Daikin EWLD850EJYNN [3/8] Large flexibility

In many applications there often exists a simultaneous

cooling and heating demand requirement alongside one

another. To benefit from this Daikin offers the full range of

R-134a EWWD-EJYNN and EWLD-EJYNN chillers with the

option of heat recovery. This option further increases the

application flexibility and extends possibilities in the hotel and

leisure industry as well as the industrial and process sectors.

By energetically recovering useful heat from the cooling

cycle that would otherwise be rejected to the outside,

extremely high COPs can be realised in heat recovery

mode. The heat recovery unit aims to achieve an optimum

balance between cooling and heat recovery to maximize the

unit efficiency and offer savings in hot water production.

LARgE FLEXiBiLiTY

Heat recovery

Depending on the temperature requirement either partial

heat recovery or full heat recovery may be selected.

OPPR – Partial recovery

A stainless steel brazed plate heat exchanger is mounted

in series between the compressor and water-cooled

condenser as a desuperheater. The sensible heat from

the hot discharge gas will be recovered, while the latent

heat exchange will occur in the water-cooled condenser.

The units’ efficiency is maintained as condensing pressure

can be reduced due to water-cooled condenser becoming

oversized.

OPTR – Total recovery

A single, tailored Shell and Tube heat exchanger is

mounted for full heat recovery of both sensible and latent

heat. It is equipped with 2 independent water circuits with

separate connections for condensate and heat recovery.

Temperatures up to 55°C can be achieved.

Condenser

20% of CC + PI

Condenser

45°C

OPPR

Total Recovery

Comp

50°C 55°C

Partial Recovery

50°C

Comp

7°C 12°C