02 witt-components en

High-qualitycomponentsfor industrial refrigeration

TH.WITT

Gesamtprospekt-GB_2018_PRINT.qxp_Gesamtprospekt_D_2017 19.03.18 12:03 Seite 1

ECO

WITT Economizer

(open flash)

Accessories

•In

let a

nd o

utle

t con

nect

ion

with

out

WIT

T st

anda

rd s

top

valv

es

•in

divi

dual

insp

ectio

ns o

f TÜ

V o

r ot

her

inst

itutio

ns

•sp

ecia

l non

sta

ndar

d ex

ecut

ions

upo

n re

ques

t

Scope of supply

•Bu

ilt-o

n hi

gh-p

ress

ure

float

reg

ulat

or H

R w

ith v

alve

s

•W

ITT

stop

val

ves

fitte

d to

inle

t and

out

let c

onne

ctio

ns o

rga

s an

d liq

uid

refr

iger

ant

•D

rain

age

valv

e EA

10

GB

L

•Pu

rge

valv

e EE

6 L

, bef

ore

EA 1

0 G

B L

•co

mbi

ned

G ½

”/G

¼”

thre

aded

con

nect

ion

for

safe

ty v

alve

•M

axim

um li

quid

leve

l sw

itch

NG

X (a

ttach

ed)

•st

eel f

ram

e in

clud

ing

woo

den

supp

orts

and

mou

ntin

g br

acke

ts

10

11

In screw compressor refrigerant plants the ECO

is used to increase

the efficiency and reduce

the sizing of the required components. Any

refrigerant that is form

ed in the condenser

flows to the float regulator, which then

expands the liquid refrigerant into the ECO

housing to interm

ediate pressure. The liquid

refrigerant is expanded by the float regula-

tionwithin the ECO housing, to the separator at

the low-pressure side of the system. Due to the

Economizer connection on the screw compressor,

the throttle gas at the medium pressure level

separated in the ECO is reintroduced into the

compressor process.

Reduction of capacity

Due

to a to

p m

oun

ted flash gas suction lin

e, th

e screw compressor size

and

low-

pressure separator size

may be reduc

ed or their perform

anc

e may be increa

sed.

Safety

Due

to th

e alm

ost m

echa

nica

l design the wiring or additiona

l controls w

ill be

reduc

ed. In th

e ev

ent o

f a power failu

re cond

ensa

te is drained

safely to

the low

pressure side, ensuring highe

st operatio

nal safety.

A W

ITT maximum

high-leve

l switc

h model N

GX is fitted to

the EC

O housing.

To ensure that in the ev

ent o

f the liq

uid le

vel rising to

high it will protect th

e

compressor from liquid carry ove

r and

possible liquid hammer.

Energy-efficient

Beside the relie

f/perform

anc

e increa

se of the co

mpressor and

the separator the

refrigerant is alw

ays drained

by the flo

at w

hene

ver co

nden

sate acc

umulates.

Thus, lower cond

ensing

temperatures ca

n be utilize

d each

sea

son with

out a nee

d

to consider other control c

riteria. Compared to

a system operatin

g w

ith traditiona

l

expansion va

lves th

ere is neither a nee

d for sub-coolin

g liquid nor superhe

atin

g

the suction gas. (Re

mark: en

ergy sa

ving

s of up

to 13% are quite possible,

i.e. w

ith 5

K lo

wer cond

ensa

tion temperature).

the ECO

reduce

s. Any

nser

n ECO

e liquid

gula-

parator at

Due to the

ompressor,

ure level

into the

Ac

AAAccecesssssssor

or

orieis


W0303-8

.04

-Eb

–E–03.18

Lukasstraße 32

52070 Aachen, Germany

+49 (0)2 41 1 82 08- 0

+49 (0)2 41 1 82 08- 490

High-quality refrigeration components

• HRP Hermetic refrigerant pumps

• GP Open refrigerant pumps

• HR & HS High side float regulators

• WP3HR High side float regulators for heat pumps up to 65 bar

• ECO Economizer

• BDP Automatic oil recovery

• NGX Maximum level switch

• HDB 3 Stainless steel oil drain vessel

• HAD High efficient separator

• Pumping stations

• SAV Standard-separator-evaporator-unit

• DB Pressure vessel units

• NH3/CO2 Cascades

WIL

KED

ESIG

N

www.th-witt.com

TH.WITT Kältemaschinenfabrik GmbH


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