Model: SF-104 Digital Temperature Controller
Features of Function
Mini-sized and integrated intelligent control and applicable to the compressor of one HP.
Temperature Display/ Temperature Control/ Manual, automatic defrost by electric heater or hot gas
/Evap. Fan Control/High,Low temperature alarm/ Value Storing/ Self Testing /Parameter Locking
Specifications
1. Output of the outside sealed transformer:AC12V(one transformer matched with one temp. controller)
2. Temperature sensor: NTC, Double sensors(for cold-room temp.&defrost control),2m(L)
3. Range of temperature displayed :
4. Range of set temperature:
5. Dimension:77(Length) 35(Width) 60(Depth)mm
Mounting hole dimension:71(Length) 29(Width)mm
6. Temperature of the operating environment: 10 60
7. Output contact capacity:
Compressor: N.O. 20A/250VAC
(applicable to 1 HP Compressor,if more it needs to connect an AC contactor)
Defrost:
N.O.10A/250VAC (applicable to 1KW load, if more it needs to connect an AC contactor)
Evap. Fan:
N.O. 5A/250VAC
Front Panel Operation
1 . Set temperature
Press
button, the set temperature is displayed.
P
e r
s s
r o
b
t u
o t
display the cold room temperature.
If no more button is pressed within 10 seconds, the cold room temperature will be displayed.
2. Manual start/stop defrost: Press
3. Display the evap. Temperature : Press
after 10 seconds the cold room temp. is resumed to be displayed.
4. Refrigeration LED: During refrigeration, the LED is on; When the cold room temp. is constant, the LED is off;
During the delay start, the LED flashes.
5. Defrost LED: during defrosting, the LED is on; When it stops defrosting, the LED is off. During the delay
display of defrost, the LED flashes.
6. Parameter setup
Press
button and hold for 6 seconds to enter the parameter setup mode while E1 flashes.
Press again
button to select sequentially from the parameters : E2,E3,E4,E5,E6,F1,F2~C4.
Press
or
button, the value of parameter will be displayed and can be modified and stored.
If no more button is pressed within 10 seconds, it will return to normal operation mode.
Function
Parameter
Lower setpoint limit
E1
Higher setpoint limit
E2
E3
Temp. hysteresis
Comp.start delay time
E4
Offset on room temp.
E5
Offset on evap. Temp.
E6
F0
Defrost function
F1
Max. Defrost duration
F2
Defrost interval time
7. The factory default resumption: press
seconds, the indicator flashes , all parameters will be resumed as same as factory defaults. After 10 seconds,
it returns to the normal operation.
SF-104
4
5 45 ( 4
-
~ ℃ —
4
5 45
( 4
0~120 );
-
~ ℃ —
×
×
×
-
t n
o
m
o
i d
y f
n a
d
t s
r o
t e
e h
button and hold for 6 seconds to defrost or stop defrost.
button and hold for 6 seconds, the evap. Temp. is displayed.,
Set range
Default
45
-
℃
- ℃
~Set temp.
40
-
℉
-
45
℃
Set temp.~
120
℉
1 10
~
℃
1 18
~
℉
2Min
0 10Min
~
5 5
- ~ ℃ /℉
5 5
- ~ ℃/ ℉
0=Electric heater
1=Hot gas
1 60Min
20Min
~
0 24Hr
~
button for 1 second and then press
0~120 );
Accuracy:
℉
Factory default :0
℉
Relative Humidity:20%~90%(Non-condensing)
~ ℃
d
s i
l p
y a
d e
a v
u l
, e
P
e r
s s
Function
Parameter
35
F3
Defrost termination temp.
31℉
20
℃
Display during defrost
68
℉
F4
4
℃
7
℉
Fan operating function
F5
0
Temperature unit
C1
0
High temperature alarm
C2
0
Low temperature alarm
C3
Alarm time delay
C4
6Hr
www.procoolmfg.com
1℃ ±
(
2 )
±
℉
( 32 )
℃
±
℉
u b
t t
n o
o t
e
i x
t t
e h
d a
u j
t s
m
Set range
0 20
~
℃
32 68
~
℉
0=Normal display
1 = Last value
before defrost
0= Parallel with comp.
1 = Continuous running
except defrost
0=
1=
℃
℉
0~40 /
℃ ℉
above setpoint
0~40 /
℃ ℉
below setpoint
1 90Min
~
button simultaneously for 6
e
t n
n a
d
Default
8
℃
46
℉
0
0
0
20
-20
60Min
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