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0=Electric heater
1=Hot gas
0~40 /
ab
ove setpoint
℃ ℉
0~40 /
below setpoint
℃ ℉
0
1 90Min～
60Min
F5
0= Parallel with comp.
1 = Continuous running
except defrost
Fan operating function
Defrost function
High temperature alarm
Low temperature alarm
Alarm time delay
F0
Parameter
Parameter
Functio nFunctio n
Set range
Set range
Default
Def ault
0 20
32 68
～
℃
～
℉
8
46
℃
℉
45
120
℃
℉
20
68
℃
℉
1 10
1 18
～ ℃
～ ℉
4
7
℃
℉
－ ～ ℃ ／ ℉5 5
－ ～
℃／ ℉
5 5
0= 1=℃ ℉
0
0
0
0
1 60Min～
0 24Hr～
20Min
6Hr
0
F1
F2
F3
F4
～Set temp.
Set temp.～
0 10Mi n～
2Min
E1
E2
E3
E4
E5
E6
0=Normal display
1 = Last value
before defrost
Lower setpoint limit
Higher setpoint limit
Temp. hysteresis
Comp.start delay time
Offset on room temp.
Offset on evap. Temp.
Max. Defrost duration
Defrost interval time
Defrost termination temp.
Display during defrost
Temperature unit
C1
－ ℃
－ ℉
45
40
－ ℃
－
35
31℉
20
－20
C2
C3
C4
Front Panel Operation
1 . Set temperature
Press button, the set temperature is displayed.
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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 button and hold for 6 seconds to defrost or stop defrost.
3. Display the evap. Temperature : Press button and hold for 6 seconds, the evap. Temp. is displayed.,
after 10 s
econds the cold room temp. is resumed to be displayed.
4. Refrigerat
ion 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
sequent
ially 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.
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7. The factory default resumption: press button for 1 second and then press button simultaneously for 6
seconds, the indicator flashes , all parame ters will be resumed as same as factory defaults. After 10 seconds,
it returns to the normal operation.
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 : 5 45 ( 4
5 45 ( 4
～ ℃ —
～ ℃ —
～ ℃
1℃ ±
℃
－ ℉ ± ℉
－ ℉±℉
× ×
×
－
4 0~120 ); Accuracy: ( 2 )
4. Range of set temperature: 4 0~120 ); Factory default :0 ( 32 )
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 Relative Hum idity:20%~90%(Non-condensing)
7. Output contact capacity:
Compressor: N.O. 20A/250VAC
(applicable to 1 HP Compressor,
if more it needs to co
nnect 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
Model: SF-104 Digital Temperature Controller
SF-104
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