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Defrost / Freezer / Cold
Room Controller ... |
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SZ
7524P
(Freezer
Controller) |
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| Main Features |
► |
Relay output : Compressor + Heater + Evap. Fan. |
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► |
HP/LP/OSS trip protection for compressor. |
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► |
Compressor protection algorithm. |
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► |
Auto/Man defrosting facility (Time/ Temp based) |
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| Input & Output |
► |
Relay Output 1 & 2 : 8(3)A for Heater & Evap. Fan. |
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► |
Relay Output 3 : 8(3)A Compressor. |
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Temp. Sensor Input : 2 NTC (Room & Evap. Coil). |
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| Application |
► |
Freezer and cold room controller |
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| General |
► |
Temperature range -50°C to 50°C. |
| Specification |
► |
230VAC Standard. Other models with 12VDC, 24VDC, 110VAC on request. |
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Panel cutout : 29 X 71 mm Screw terminals : Admit 1X 2.5 mm2 wire. |
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SZ 7524P
(Freezer
Controller)
(Din Rail Mount
/ Wall Mount ) |
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Manual
/ Wiring Diagram
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Main Features |
► |
Relay
output
:
Compressor
+
Heater
+
Evap.
Fan. |
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► |
HP/LP/OSS
trip
protection
for
compressor. |
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► |
Compressor
protection
algorithm. |
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► |
Auto/Man
defrosting
facility
(Time/
Temp
based). |
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Input & Output |
► |
Relay
Output
1 &
2 :
8(3)A
for
Heater
&
Evap.
Fan. |
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► |
Relay
Output
3 :
8(3)A
Compressor. |
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► |
Temp.
Sensor
Input
: 2
NTC
(Room
&
Evap.
Coil). |
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Application |
► |
Freezer
and
cold
room
controller. |
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General |
► |
Temperature
range
-50°C
to
50°C. |
|
Specification |
► |
230VAC
Standard.
Other
models
with
12VDC,
24VDC,
110VAC
on
request. |
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► |
Wall
mounted
&Din
rail
mounting. |
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SZ - 7527
(Freezer
Controller) |
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Manual
/ Wiring Diagram
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Main Features |
► |
Blue
LCD
with
backlighting
with
16
X2
characters
to
display
all
parameters. |
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► |
Relay
out
puts
Compressor,
Heater,
Evap.
Fan
and
Alarm. |
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► |
HP/LP/OSS
trip
protection
for
Compressor. |
|
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► |
Auto/
Man
defrosting
facility
(Time/
Temp
Based). |
|
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► |
Special
Software
to
indicate
probable
heater
fault. |
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Input & Output |
► |
Relay
output
:
8(3)A
for
Compressor. |
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► |
Relay
output
:
8(3)A
for
Heater,
Evap.
Fan. |
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Alarm
:
5A. |
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► |
Temp.
Sensor
Input
: 2
NTC
(Room
&
Evap.
Coil). |
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Application |
► |
Freezer
&
cold
room
applications. |
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| General |
► |
Temperature
range
-50°C
to
50°C. |
|
Specification |
► |
230VAC
Standard.
Other
models
with
12VDC,
24VDC,
110VAC
on
request. |
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► |
Panel
cutout
: 29
X 71
mm
Screw
terminals
:
Admit
1X
2.5
mm2
wire. |
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SZ 7534
(Cold Room
Controller)
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Manual
/ Wiring Diagram
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Main Features |
► |
Digital
input
for
pressure
cutout. |
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► |
HP/LP/OSS
trip
protection
for
Compressor. |
|
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► |
Auto/
Man
defrosting
facility
(Time/Temp
based). |
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► |
Inbuilt
buzzer. |
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Input & Output |
► |
Temp.
Sensor
Input
: 2
NTC
(Room
&
Evap.
Coil). |
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► |
Relay
Output
:
8(3)A
for
Compressor,
Heater
&
Evap.
Fan. |
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► |
Relay
Output
: 5A
for
Light. |
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Application |
► |
Freezer
and
cold
room
controller. |
|
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|
General |
► |
Temperature
range
-50°C
to
+50°C. |
|
Specification |
► |
230VAC
Standard.
|
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► |
Panel
cutout
: 31
X
150
mm
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► |
Spade
terminal
connections. |
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CRC-1100
(Freezer / Cold
Room
Controller) |
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Manual
/ Wiring Diagram
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The
CRC-1100
is a
panel
mounted
controller
dedicated
to
controlling
the
cold
room
and
its
various
devices.
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The
controller
controls
the
defrost
in
the
system
based
on
either
an
electrical
heater
where
the
compressor
is
stopped,
or
at
cycle
inversion
using
warm
gas
where
the
compressor
keeps
on
working.
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It
is
also
possible
to
select
the
interval
between
defrosts
and
a
maximum
time
out
after
which
the
defrost
is
interrupted.
The
same
probe
which
controls
the
defrost
cycle
is
also
used
to
control
the
evaporator
fans.
It
is
possible
to
set
the
temperature,
the
time
delay
time
after
a
defrost
and
the
relation
of
fans
with
the
compressor. |
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There
are
safety
features
which
include
shutting
down
the
system
incase
of a
fault
from
a
pressure
control
or
similar
device. |
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Main Features |
► |
LCD
with
backlighting
to
display
all
parameters. |
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► |
2
NTC
probes
for
cold
room
temp
+
evap.
coil
temperature. |
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► |
Relay
outputs
:
Compressor
+
Heater
+
Evap.
Fan
+
Alarm. |
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► |
Audible
alarm.
Digital
inputs
:
2nos
(a)
Door
switch
(b)
Pressure
cutout. |
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► |
HP/LP/OSS
trip
protection
for
compressor.
Compressor
protection
algorithm. |
|
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► |
Auto/Mannual
defrosting
facility
(Time/Temp
based). |
|
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► |
Special
software
to
indicate
probable
heater
fault. |
|
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|
Input & Output |
► |
Relay
Output
1 :
8(3)A
Compressor. |
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► |
Output
2 :
8(3)A
Heater. |
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► |
Output
3 :
8(3)A
Evaporator
Fan. |
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► |
Output
4 :
5A
Alarm |
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► |
Temp.
Sensor
Input
:
2NTC
for
Cold
room
chamber
and
Evaporator
Coil. |
|
|
|
General |
► |
Temperature
range
-50°C
to
+50°C. |
|
Specification |
► |
230VAC
Standard.
110VAC
on
request. |
|
|
► |
Panel
cutout
: 92
X 92
mm
Screw
terminals
:
Admit
1X
2.5
mm2
wire. |
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CRC-1200
(Cold Room
Controller) |
|
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|
Manual
/ Wiring Diagram
|
The
CRC-1200
is a
panel/wall
mounted
controller
dedicated
to
controlling
the
cold
room
and
its
various
devices.
The
controller
controls
the
defrost
in
the
system
based
on
either
an
electrical
heater
where
the
compressor
is
stopped,
or
at
cycle
inversion
using
warm
gas
where
the
compressor
keeps
on
working.
It
is
also
possible
to
select
the
interval
between
defrosts
and
a
maximum
time
out
after
which
the
defrost
is
interrupted.
The
same
probe
which
controls
the
defrost
cycle
is
also
used
to
control
the
evaporator
fans.Post
drip
and
condensor
fan
control
are
amongst
many
other
features
in
this
contoller.
There
are
safety
features
which
include
shutting
down
the
system
incase
of a
fault
from
a
pressure
control
or
similar
device. |
|
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Main Features |
► |
LCD
with
backlighting
to
see
system
status
and
1”
display
for
temperature. |
|
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► |
2
NTC
probes
for
Cold
room
temp
+
Evap.
coil
temperature. |
|
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► |
Computer
Connectivity
over
RS485
and
Remote
monitoring
(Optional). |
|
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► |
Fast
Freeze
mode,
Inbuilt
RTC,
Door
Input,
Audible
alarm. |
|
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► |
Relay
outputs
:
Compressor/
Cond.Fan/
Evap.
Fan/
Heater/
Alarm. |
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► |
HP/LP/SPPR
trip
protection
for
compressor. |
|
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► |
Auto/Man
defrosting
facility
(Time/
Temp
based),
Power
Switch
Key. |
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► |
Last
10
Fault
Logs
with
Date/
Time
Stamp. |
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Input & Output |
► |
Relay
Output
:
8(3)A
Compressor,
Condenser
Fan,
Evaporator,
Fan,
Alarm. |
|
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► |
Temp.
Sensor
Input
:
2NTC
for
Cold
room
chamber
and
Evaporator
Coil |
|
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► |
Digital
Input
: HP
/ LP
/
SPPR
Input
/
Door
Input
(Potential
free) |
|
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► |
RS485
connector
for
PC
Connectivity. |
|
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|
General |
► |
Temperature
range
-50°C
to
35°C. |
|
Specification |
► |
230VAC
Standard
|
|
|
► |
Screw
terminals
:
Admit
1X
2.5
mm2
wire. |
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Back..... |
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