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Defrost / Freezer / Cold
Room Controller ... |
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SZ
7520P
(Temperature
Controller
with
Time
Based
Defrost) |
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| Main Features |
► |
Cooling output & Time based Defrost. |
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► |
Memory retention, time delay for compressor protection. |
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► |
Auto operation incase of sensor error. |
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| Input & Output |
► |
Relay output : 8(3)A. |
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Temp. Sensor Input : 1 NTC. |
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| Application |
► |
Freezers. |
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| General |
► |
Temperature range -50°C to +99°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 7521P
(Temperature
Controller for
Air Dryer &
Freezers) |
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Manual
/ Wiring Diagram
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Main Features |
► |
Cooling
output
&
Time
based
Defrost. |
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► |
Memory
retention,
time
delay
for
compressor
protection. |
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► |
Auto
operation
incase
of
sensor
error. |
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► |
Time
based
signal
for
auto
drain
valve. |
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► |
Defrost
time
/
Drain
valve
signal
selectable
in
minutes
&
seconds. |
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Input & Output |
► |
Relay
output
:
8(3)A
for
cooling.
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► |
Relay
output
: 5A
for
Heater,
Hotgas
and
Auto
Drain
Valve. |
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► |
Temp.
Sensor
Input
: 1
NTC. |
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Application |
► |
Air
dryer
&
freezers. |
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| General |
► |
Temperature
range
-50°C
to
99°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 7525P
(Time Based
Defrost
Controller with
Buzzer)
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Manual
/ Wiring Diagram
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Main Features |
► |
Cooling
output
&
time
based
Defrost. |
|
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► |
Memory
retention,
time
delay
for
compressor
protection. |
|
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► |
Auto
operation
incase
of
sensor
error. |
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► |
Buzzer
output. |
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Input & Output |
► |
Relay
output
:
8(3)A. |
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► |
Buzzer
output
:10VDC,
10mA
Max. |
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► |
Temp.
Sensor
Input
: 1
NTC. |
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Application |
► |
Deepfreezer. |
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General |
► |
Temperature
range
-50°C
to
+99°C. |
|
Specification |
► |
230VAC
Standard.
Other
models
with
12VDC,
24VDC,
110VAC
on
request. |
|
|
► |
Panel
cutout
: 29
X 71
mm
Screw
terminals
:
Admit
1X
2.5
mm2
wire. |
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SZ 7529P
(Time Based
Defrost
Controller with
20Amp Relay) |
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Manual
/ Wiring Diagram
|
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Main Features |
► |
Cooling
output
&
Time
based
Defrost. |
|
|
► |
Memory
retention,
time
delay
for
compressor
protection. |
|
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► |
Auto
operation
incase
of
sensor
error. |
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|
Input & Output |
► |
Relay
output
:
20A
(Inductive). |
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► |
Temp.
Sensor
Input
: 1
NTC. |
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Application |
► |
Deepfreezer. |
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General |
► |
Temperature
range
-50°C
to
+99°C. |
|
Specification |
► |
230VAC
Standard.
Other
models
with
12VDC,
24VDC,
110VAC
on
request. |
| |
► |
Panel
cutout
: 29
X 71
mm
Screw
terminals
:
Admit
1X
2.5
mm2
wire. |
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► |
Spade
terminals
for
compressors. |
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SZ 7522P
(Freezer
Controller) |
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Manual
/ Wiring Diagram
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Main Features |
► |
Cooling
output. |
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► |
Digital
input
for
Door
Switch. |
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► |
Relay
output
:
Heater
&
Compressor. |
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► |
Auto/Manual
defrosting
facility
(Time/
Temp
based). |
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Input & Output |
► |
Relay
Output
1 :
8(3)A
Compressor. |
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► |
Relay
Output
2 :
5A
Heater. |
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► |
Temp.
Sensor
Input
: 2
NTC
(Room
&
Evap.
Coil). |
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Application |
►
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Freezer
and
cold
room. |
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General |
► |
Room
Temperature
range
-50°C
to
+99°C. |
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Specification |
► |
Coil
Temperature
range
-50°C
to
+50°C. |
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► |
230VAC
Standard.
Other
models
with
12VDC,
24VDC,
110VAC
on
request. |
|
|
► |
Panel
cutout
: 29
X 71
mm
Screw
terminals
:
Admit
1X
2.5
mm2
wire. |
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SZ 7523P
(Freezer
Controller with
20Amp Relay) |
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Manual
/ Wiring Diagram
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Main Features |
► |
Digital
input
for
Pressure
Cutout. |
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► |
Relay
output
:
Compressor
+
Heater
+
Evap.
Fan. |
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► |
HP/LP/OSS
trip
protection
for
compressor. |
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► |
Compressor
protection
algoriithm. |
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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 :
20A
Compressor |
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► |
Temp.
Sensor
Input
: 2
NTC
(Room
&
Evap.
Coil). |
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Application |
► |
Freezer
and
cold
room. |
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|
General |
► |
Temperature
range
-50°C
to
50°C. |
|
Specification |
► |
10VAC/DC
Standard. |
|
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► |
Panel
cutout
: 29
X 71
mm
Screw
terminals
:
Admit
1X
2.5
mm2
wire. |
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Next..... |
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