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Mech-Controller ... |
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Manual
/
Wiring
Diagram
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Oil
Separator |
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| Application |
► |
The advantages of the oil separator on the discharge line of a compressor in a refrigeration system are confirmed by many years of experience. The oil separator intercepts the oil mixed with compressed gas and returns it to the crankcase of the compressor thus assuring an efficient lubrication of its moving parts. Furthermore, the oil separator maintains a high coefficient of condenser and evaporator performance by almost completely removing oil deposits from their exchange surfaces. When a very high temperature at the end of the compression stage lead to the formation of oil vapours. Moreover, the oil separator, damping the valves pulsations, reduces system noise with an open or semi-hermetic compressor. |
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Finally, the use of an oil separator leads to: |
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► |
a longer life of the compressor; |
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► |
a better performance of the whole system with consequent energy saving; |
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► |
A quieter operation by reducing pulsations. |
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| Installation |
► |
The oil separators should be installed in the discharge line between the compressor and the condenser mounted securely in a vertical position and reasonably close to the compressor.
To prevent the return of refrigerant from condenser, during the off cycle of the system, it's advisable to install a check valve between the condenser and oil separator outlet connection.
Oil separator performs best when operating at or near the compressor discharge temperature. In location the oil separator, choose a position to avoid, as far as possible, chilling of the shell, which may result in condensing of liquid within the separator. If this is not possible, it is advisable to supply the separator with the better solutions (insulation, strap heater, others) to prevent the refrigerant in the system from condensing in the shell. Before the oil separator is installed, an initial charge of oil should be added to it. Refer to general characteristics of oil separators or to instruction sheet for the proper amount of oil. Oil pre-charge is very important, failure to pre-charge separator sump may result in damage to the oil return float mechanism. Use the same type of oil that is in the compressor crankcase.
Acting as the layout of refrigerating system, the return line may be run from the oil fitting to: |
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► |
The compressor crankcase; |
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The suction line upstream the compressor or upstream the receiver, if present; |
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The oil reservoir if oil control system is being used. |
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A sight glass may be installed in the oil line, in a position that oil is flowing through the tube, to check the correct working of the oil separator. |
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| Construction |
► |
Castle oil separators are manufactured from deep drawn special steel of adequate thickness.
End connections are manufactured from special steel bars.
The internal float ball is constructed of Stainless Steel. |
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Type |
Connection
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Rated
Plant
Capacity
(KW) |
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in |
Version |
R 22 |
R
134a |
R
404A |
R 12 |
R
502 |
|
Coub
1 |
3/8”,1/
2”,
5/8” |
Flare/Solder |
3.1 |
2.5 |
3.5 |
2.3 |
3.5 |
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Coub
1 |
7/8”,1.1/8”
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Solder |
11.6 |
9.6 |
12.8 |
8.8 |
12.8 |
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Dehydration of Refrigerants |
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Among contaminating agents
causing serious damages to
refrigerating systems,
moisture plays a major role.
Its presence, even possible
in the refrigerating system,
is due to many factors:
inadequate or insufficiently
prolonged vacuum before
refrigerant charging;oil
used for topping up remained
exposed to air
humidity;refrigerant used
for subsequent additions
contained in non dried
vessels; sealing defects
especially in systems not
designed for operation at
low temperatures.
High temperatures combined
with humidity give rise to
complex phenomena enhancing
acid formation both in
lubricating oil and
refrigerant.
Oil organic acids react with
metal and favor the
formation of sludge, which
are viscous clots consisting
of insoluble metal salts and
large molecules of
polymerized oil.
Sludge affects the
lubrication of the moving
elements of the compressor,
can clog valves and filters
and cause serious damages.
Acids, especially
hydrofluoric acid, produced
by the hydrolysis of the
fluorinated refrigerant (in
compressors iron and alumium
act as catalysts) are
particularly corrosive.
Acids etch metal surfaces
with the consequent
formation of crystal salts,
which stick to surfaces and
affect the total heat
exchange coefficient in the
condenser and in the
evaporator.
In the sealed and
semi-sealed groups, these
saltsdamage the windings of
electric motors as in these
groups cold gas cools
windings through direct
contact. On the other hand,
water solubility in
refrigerants in a liquid
phase, is quite reduced,
especially at low
temperatures. As a
consequence, when in the
system water exceeds the
very low limits of
solubility admitted at low
temperature, excess water
turns into ice, and blocks
expansion valves and
capillaries either partially
or totally.
Consequently, refrigerating
plants must be equipped with
a filter drier on the liquid
line.
In solid core dehydrators,
dehydrating and deacidifying
products with binders
constitute the block.
Water adsorption combines
with the neutralization of
acids that may be present in
the refrigerant, and with a
strong filtering action. As
there is no risk of
abrasion, the position of
the solid core dehydractor
is not a problem.
It is always advisable to
install a moisture indicator
downstream the filter, which
will show the refrigerant
moisture and, consequently,
the degree of efficiency of
the filter.
The dehydrating capacity of
a drier is relative to the
charge of refrigerant and
not to the refrigeration
potential of the plant.
As a matter of fact, for the
same refrigerant potential
and for the same type of
refrigerant fluid, there can
be different refrigerant
charges according to the
type, design and working
conditions of the plant as
well as to the shutter
degree.
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Replaceable
Solid Core
Filter Driers |
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Manual
/ Wiring Diagram
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Application |
► |
The
filters
are
designed
for
installation
on
commercial
refrigerating
systems
or
civil
and
industrial
refrigerating
systems. |
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Installation |
► |
The
driers
can
be
mounted
in
horizontal
or
vertical
positions,
but
flow
of
refrigerant
must
be
as
per
the
inlet
and
outlet
direction
as
mentioned
on
the
drier. |
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Construction |
► |
The
filters
are
manufactured
of
steel
including
the
connections. |
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Operation |
► |
In
the
case
of
filters
with
more
than
one
block,
the
passage
of
liquid
takes
place
in
parallel,
as a
result
the
pressure
drop
does
not
increase
proportionately
to
the
number
of
blocks.
A
large
ring
between
the
inner
surface
of
the
filter
permits
the
accumulation
of
solid
particles
and
prevents
clogging.
Before
leaving
the
filter,
the
refrigerant
must
pass
through
the
mesh
sieve
on
which
the
blocks
are
mounted.
The
danger
that
small
particles
of
dehydrating
material
being
introduced
into
the
system
is
thus
avoided. |
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| MODEL |
ODF
(in) |
Liquid Refrigeration Capacity |
H
(in) |
D
(in) |
C
(in) |
H1
(in) |
E
(in) |
Weight
(KG) |
Cores
Qty |
|
R134a |
R12 |
R22 |
R404a |
R502 |
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CS-485T |
5/8 |
28.2 |
28.2 |
35.2 |
28.2 |
28.2 |
9.31 |
6.05
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4.5 |
6.09 |
3.13 |
5.5 |
1 |
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CS-487T |
7/8 |
35.2 |
35.2 |
45.8 |
35.2 |
35.2 |
9.5 |
6.25 |
3.25 |
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CS-489T |
1-1/8 |
35.2 |
35.2 |
52.8 |
35.2 |
35.2 |
9.38 |
6.31 |
3.25 |
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CS-4811T |
1-3/8 |
45.8 |
45.8 |
70.4 |
45.8 |
45.8 |
9.75 |
6.44 |
3.38 |
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CS-967T |
7/8 |
70.4 |
70.4 |
88 |
52.8 |
52.8 |
15.13 |
6.05
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4.5
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11.87 |
3.28 |
8 |
2 |
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CS-969T |
1-1/8 |
88 |
88 |
105.6 |
70.4 |
70.4 |
15.19 |
11.97 |
3.28 |
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CS-9611T |
1-3/8 |
105.6 |
105.6 |
123.2 |
88 |
88 |
15.31 |
12.06 |
3.38 |
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CS-9613T |
1-5/8 |
123.2 |
123.2 |
140.8 |
105.6 |
105.6 |
15.31 |
12.06 |
3.41 |
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CS-1449T |
1-1/8 |
105.6 |
105.6 |
140.8 |
105.6 |
105.6 |
20.5 |
6.05
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4.5
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17.25 |
3.25 |
10
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3 |
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CS-14411T |
1-3/8 |
140.8 |
140.8 |
176 |
123.2 |
123.2 |
20.75 |
17.53 |
3.38 |
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CS-14413T |
1-5/8 |
158.4 |
158.4 |
193.6 |
140.8 |
140.8 |
20.75 |
17.53 |
3.41 |
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CS-14417T |
2-1/8 |
176 |
176 |
211.2 |
158.4 |
158.4 |
20.95 |
17.63 |
3.5 |
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RECEIVERS |
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Manual
/ Wiring Diagram
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Features |
► |
Anticorrosive
powder
painting
can
withstand
500
hours
salty
Spray
test. |
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► |
Durable
filter
shell
can
improve
service
life. |
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High
quality
rotolock
valve |
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Maximum
working
pressure
:
450
PSI |
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| Model |
Capacity |
Connection (inch) |
Overall Dimension |
Compressor
(hp) |
Volume
(L) |
Inlet |
Outlet |
L |
A |
| 010 |
1/2 |
1 |
3/8" |
1/4" |
7.086 |
3.54 |
| 022 |
1 |
2.2 |
3/8" |
3/8" |
8.267 |
4.72 |
| 030 |
2 |
3 |
1/2" |
3/8" |
8.267 |
5.91 |
| 030B |
2 |
3 |
1/2" |
3/8" |
9.84 |
5.196 |
| 037 |
2 |
3.7 |
1/2" |
3/8" |
13.77 |
4.72 |
| 040 |
3 |
4 |
1/2" |
1/2" |
10.629 |
5.91 |
| 060 |
5 |
6 |
1/2" |
1/2" |
11.84 |
6.14 |
| 060B |
5 |
6 |
1/2" |
1/2" |
9.448 |
7.09 |
| 080 |
8 |
8 |
1/2" |
1/2" |
11.811 |
7.09 |
| 100 |
10 |
10 |
5/8" |
5/8" |
11.811 |
8.267 |
| 120 |
12 |
12 |
3/4" |
5/8" |
13.779 |
8.267 |
| 140 |
14 |
14 |
3/4" |
5/8" |
15.748 |
8.267 |
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SERIES SUCTION
LINE
ACCUMULATORS |
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Manual
/ Wiring Diagram
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Series
suction
Line
Accumulators
is
designed
with
bend
pipe
to
prevent
internal
splashing
and
aid
in
the
collection
of
refrigerant,
and
the
bend
pipe
should
be
installed
near
the
compressor
as
possible. |
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Features |
► |
Type
“U”
siphon
designed
keeps
Max
refrigerant
flow
capacity
and
the
least
oil
acquisition |
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► |
Entrance
of
type
“U”
siphon
is
in
the
back
of
inlet
oriented
pipe,
to
prevent
liquid
enter
to
compressor
and
destroy
it |
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► |
Throttle
hole
is
matching
with
system
capability
to
ensure
the
best
about
the
liquid
refrigerant
that
flow
into
compressor |
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► |
To
prevent
rusting
of
outside
by
surface
painting
with
endure
rusty
of
static
Maximum
working
pressure
:
420
PSI |
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Part
|
► |
Welding
ODF
|
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description |
► |
End
cover
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► |
Oriented
Pipe
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► |
“U”
shape
bending
pipe
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► |
Copper
tube
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► |
Throttle
hole |
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| Model |
Connections |
L
(in) |
LI
(in) |
A
(in) |
Liquid Flow Capacity (KW) |
| R-12 |
R-22/R410A |
R-502 |
| 204 |
1/2 |
7.87 |
2.0 |
4.0 |
3.5 |
3.3 |
3.4 |
| 205 |
5/8 |
9.84 |
2.0 |
4.0 |
4.4 |
4.0 |
4.2 |
| 206 |
3/4 |
10.23 |
3.11 |
5.5 |
6.1 |
6.8 |
6.2 |
| 207 |
7/8 |
12.59 |
3.11 |
5.5 |
9.8 |
9.0 |
9.3 |
| 208 |
1-1/8 |
14.96 |
3.22 |
6.25 |
14.2 |
13.3 |
13.7 |
| 209 |
1-3/8 |
19.29 |
3.22 |
6.25 |
21.8 |
20.5 |
21.2 |
| 210 |
1-5/8 |
21.65 |
3.22 |
6.25 |
23.8 |
22.5 |
23.1 |
| 2117 |
2-1/8 |
14.17 |
4.17 |
8.62 |
15.2 |
14.5 |
15.0 |
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Water Flow
Switch |
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Manual
/ Wiring Diagram
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Application |
►
|
The
paddle
type WFS
series
flow
controllers
are
specifically
designed
for use
on
liquid
lines
such as
water,
ethylene
glycol
or any
other
fluid
which is
not
harmful
to brass
or
phosper
bronze
and
which is
not
classified
as a
hazardous
fluid. |
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Installation |
►
|
The flow
controller
can be
mounted
in a
horizontal
or
vertical
pipeline
but must
be
located
in a
section
of pipe
where
there is
a
straight
run of
atleast
5 pipe
diameters
on each
side of
the
switch.
The "T"
type
flow
switch
eliminates
at the
installers
end the
problems
of
locating
the
switch
in the
middle
of the
pipe and
its
related
leakages. |
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Construction |
►
|
The
controller
is made
from
various
plastics
and
metals
which
are
listed
below in
the
specifications
chart.
Special
Stainless
Steel
body
flow
switches
are also
available
on
request. |
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Features
of ‘T’
type
flow
|
► |
does not
require
center
adjustment
as with
standard
flow
switch |
|
switch |
► |
saves a
lot of
installation
time |
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► |
no
welding
of
adopter
required |
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► |
forged /
brazed
as per
model
thereby
eliminating
leakages. |
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SPECIFICATIONS |
| Pipe Connection |
1/2", 3/4", 1" |
| Materials of construction |
Brass / SS304 (CF8) |
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Phosphor Bronze |
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Mild Steel |
| |
Plastic |
| Maximum Operating Pressure |
10 bar (150PSI) |
| Liquid Temperature |
1 to 1000C |
| Set point Adjustment |
Screw under cover |
| Ambient Temperature Limits |
0 to 600C |
| Flow Rates |
Chart provided gives flow rates in m3h, Lpm and US Gpm. |
| Bellow Life |
5,00,000 cycles |
| Switch Action |
SPDT, Snap-acting. |
| Electrical Ratings |
Upto to 250VAC, 15(7.5) A, 50/60 Hz |
| Wire Connections |
Screw-down Terminals |
| Paddles |
Supplied in set of 5 sizes 1",2",3",5", and 6" |
| Enclosure Protection Class |
I.P 55 |
| Conduit Opening |
22 mm diameter hole for 1/2 Conduit. |
| Dimensions |
In the instruction leaflet provided with the controller. |
| Shipping Weight |
0.7 kg. |
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Air Flow Switch |
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Manual
/ Wiring Diagram
|
|
Application |
►
|
These
are
suitable
for
monitoring
the
air
or
non-corrosive
gasses
internally
of
distribution
air
ducts
for
airconditioning
or
air
treatments. |
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|
Construction |
►
|
The
switch
is a
dust-tight
microswitch
with
both
heat
and
cool
switching
contacts.
The
housing
is
ABS
with
a
galvanised
steel
sheet
for
the
flow
switch
baseplate.
It
has
a
IP65
rating
from
the
duct
external
side. |
|
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|
Installation |
►
|
The
flow
switch
may
be
installed
in
any
position
duly
orientated
on
stream.
If
the
pipe
is
vertical,
reset
range
to
balance
vane
weight.
Install
the
provided
gasket
in
the
device
fixing
base
to
pipe. |
|
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|
MAX CUT -OUT VALUE
m/se |
MAX CUT IN-VALUE
m/sec |
MAX AIR TEMPERATURE
oC |
| 8 |
9.2 |
85 |
|
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| MODEL |
MIN CUT -OUT VALUE
m/sec |
MIN CUT IN-VALUE
m/sec |
| AFS-1 |
1 |
2.5 |
|
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|
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|
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Pressure
Controls |
|
|
|
Manual
/ Wiring Diagram
|
These controls
can be used not
only in
florinated
refrigerants,
but also in the
air and liquid
(allowed liquid
temperature: -45
C + 120 C).
Micro-switch
structure
ensures reliable
switch function.
Single pressure
controls can be
supplied by
single high and
single low, they
can be
respectively
equipped on high
and low pressure
side of
compressor
JC35-6 Pressure
differential
Controls
consists of two
oppositely
located bellows.
One is H.P.
Bellow and the
other is an L.P.
Bellow. The
pressure
differential
actuating on two
oppositely
located bellows
is balanced by a
spring. If the
pressure
differential is
less than the
set point, owing
to the lever
action, the
switch is on and
keeps the
electric heater
in the time
delay mechanism
in operation.
The contact of
the time delay
switch are then
in off position
after certain
time delay
interval (about
90 sec.) the
power supply is
cut off. A
manual reset
device is
mounted in the
time delay
mechanism of the
control. When
the compressor
has stopped due
to oil pressure
failure, the
control cannot
be reset
automatically
after it has
actuated. Push
the reset button
after the error
has been
corrected. Then
the time delay
switch in the
time delay
mechanism will
close the motor
control circuit
and start up the
compressor. |
| |
|
|
HP,
LP.HP/LP
suitable
for
all
refrigerants
other
than
Ammonia |
|
|
| Model |
Range |
Differential |
Factory Set |
| Min |
Max |
Min |
Max |
off (on) |
on (off) |
| 306f |
Low Side |
-10 |
87 |
9 |
58 |
44 |
29 |
| High Side |
72 |
435 |
Fixed 44 to 72 |
290 |
217 |
| Range |
Low Side |
-10 |
87 |
9 |
58 |
44 |
29 |
| High Side |
72 |
435 |
Man. |
290 |
Man. |
| 6F |
-10 |
87 |
9 |
58 |
44 |
29 |
| 30F |
72 |
435 |
Fixed 44 to 72 |
290 |
217 |
| 30FS |
72 |
435 |
Man. |
290 |
Man. |
|
| |
|
Oil
differential
switch
suitable
for
all
refrigerant
other
than
Ammonia |
|
|
|
Function & Data JC35-6 |
|
| Pressure Differential Regulation Range |
0.5 to 3.5 bar (7.14 to 50 psig) |
| Switch Differential |
0.5 bar (7.14 psig) |
| Factory Set Pressure Differential |
1 bar (14.2 psig) |
| Time Relay Release |
90 sec. |
| Electrical Data |
220V/16A 11V/24A |
|
|
Products
of
foreign
origin |
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|
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|
| |
Moisture Liquid
Indicators |
|
|
|
|
Manual
/ Wiring Diagram
|
|
Application |
►
|
Moisture
Liquid
Indicators
ensure
failsafe
inspection
of
the
conditions
of
the
refrigerant
fluid
in
the
system
as
regards
to
the
regular
flow
and
moisture.
Liquid
indicators
also
ensure
inspection
of
the
regular
flow
of
oil
feed-back
to
the
compressor
sump. |
| |
|
|
|
Installation |
►
|
Before
start
up
the
moisture
indicator
colour
may
show
colour
as
per
the
wet
colour.
This
may
be
due
to
exposure
to
air
and
humidity
and
moisture
in
the
circuit.
When
the
moisture
of
the
refrigerant
fluid
is
brought
back
to
acceptable
levels
with
the
dehydrator,
the
indicator
colour
will
show
the
appropriate
colour
corresponding
to
dry. |
| |
|
|
|
Construction |
►
|
Castle
liquid
indicators
are
manufactured
with
imported
glass
which
has
been
directly
fused
onto
the
metal
nut.
This
construction
allows
the
total
elimination
of
sealing
gaskets
between
the
glass
disc
and
the
metal
structure
with
the
consequent
elimination
of
possible
refrigerants.
The
materials
used
for
the
main
parts
are
: |
| |
►
|
BS-218
forged
brass
for
the
flare
brass
indicators |
| |
►
|
Refrigeration
grade
copper
tube
for
copper
end
indicators |
| |
►
|
Neoprene
rings
for
sealing |
|
| |
|
| MODEL |
CONNECTIONS |
DIMENSIONS (MM) |
Weight |
| Flare |
ODS |
H |
H1 |
L |
gm |
| MLI-6 |
1/4" |
|
31 |
20.5 |
70 |
133 |
| MLIS-6 |
|
1/4" |
31 |
20.5 |
70 |
136 |
| MLI-10 |
3/8" |
|
30.5 |
20.5 |
70 |
142 |
| MLIS-10 |
|
3/8" |
31 |
20.5 |
70 |
138 |
| MLI-12 |
1/2" |
|
33 |
20.5 |
70 |
180 |
| MLIS-12 |
|
1/2" |
30.5 |
20.5 |
70 |
125 |
| MLI-15 |
5/8" |
|
35 |
23 |
81 |
231 |
| MLIS-15 |
|
5/8" |
40 |
26.5 |
78.5 |
200 |
| MLIS-22 |
|
7/8" |
77 |
38.5 |
144 |
250 |
| MLIS-28 |
|
1.1/8" |
81 |
40.5 |
144 |
320 |
| MLIS-34 |
|
1.3/8" |
87 |
43.5 |
142 |
380 |
| MLIS-40 |
|
1.5/8" |
95 |
47.5 |
147 |
450 |
| MLIS-54 |
|
2.1/8" |
20 |
60 |
152 |
610 |
| MLIS-65 |
|
2.5/8" |
135 |
67.5 |
152 |
680 |
|
|
| |
|
| |
|
|
| |
Back... |
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|
