EWELLY EW-T205 User manual

After pressing , press and to
choose the startup time of fan after
defrosting.
After pressing , press and to
choose defrosting, in time of 1-60mins.
After pressing , press and to
choose 00 or 01.
After pressing , press and to
choose the defrosting termination
temperature.
After pressing , press and to
choose the defrosting cycle time as 0-
24hrs.
After pressing ,press and to
choose the temperature calibration as -
15℃-15℃.
After pressing ,press and to
choose the delayed startup as 0-10 mins.
版本：T205.12.03.26
/
Electronic Temperature Controller Series
Instruction Manual for EW- T205
Firstly, thanks for you using our instruments. Combined with
extensive refrigerating techniques, operated simply,control-
led temperature accurately, and with strong interference
resisting ability, the product is a fully-automatic intelligent
control system applicable for various refrigerating and
warming equipment. The product is ultra-thin, waterproof,
high-pressure, external, more reliable and safer.Our sensors
are processed and encapsulated precisely, moistureproof,
with more stable and reliable performance.
Specifications
1. Operating voltage: AC 12V 土10% 50HZ/60HZ
2. Output load: compressor relay, normally open, 16A/250VAC.
Can be used directly for compressors below 1.5 horsepower; in
case 1.5 horsepower is exceeded, required to connect AC
contactor.
Defrosting relay: 8A/220V/AC; fan relay: 5A/220V/AC。
3. Power consumption: ≤3W
4. Operating environment: -10～50℃ RH≤90%
0 0
5. Control range: -45℃～45℃(-40 F～120 F）
6. Resolution: 1℃ Precision:+1℃
7. Input signal:one line for temperature sensor, one line for
defrosting sensor, wire in two meters long.
8. Outline dimension: 78(W)×35(H)×62(D)mm
9. Hole dimension: 71(W)×29(H)
Set
PV
SV
F
。
！
。
C
Schematic Diagram of Panel
Fan Indicator
Current Temperature
Refrigerating Indicator
Defrosting Indicator
Trouble Indicator Forcible Defrosting Key
Setting Key
Setting Indicator Locking Indicator
Control program profile
1. Control temperature setting: Press to show
the control temperature, and press or to
modify the control temperature.
2. Parameter setting: Press and hold on for 6
seconds to show PA, press or to enter into
menu password input. After input the password (If
the input password is wrong, can only search the
set parameter value, but can not modify the param-
eter value, and the password is hidden.), press to
enter into setting procedure, i.e. to show E1, then
continuously press to show the parameters of
menus
and reset the parameters after entered into the
menu
-bF
3. Display the temperature of defrosting sensor head:
Press to show the temperature of defrosting
sensor head.
4. Forcible defrosting key: Long press to defrost
forcibly.
5. After press for one second, simultaneously press
for 6 seconds to show flashing. At this time all the para-
meters shall be restored to their default values. Normal
operating mode will resume after 10 seconds.
6. Can remember the operating mode before fault.
Display
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
Set
PV
SV
F
。
！
。
C
After pressing for 6 seconds, input correct
password, and simultaneously press or
to modify the minimum temperature limit, -
45℃,to the control temperature.
After pressing , press and to
choose the maximum temperature limit
and control temperature to 45℃.
After pressing ,press and to
choose the temperature return difference
as 1-10℃.
After pressing ,press and to
choose the defrosting sensor temperature
calibration.
After pressing , press and to
choose 00 or 01.
After pressing , press and to
choose the startup mode of energized fan.
After pressing , press and to
choose the water dripping time after
defrosting as 0-20mins.
After pressing , press and to
choose the startup time of fan.
After pressing , press and to
choose the startup temperature of fan.
After pressing , press and to
choose the temperature unit, 00 or 01.
After pressing , press and to
modify the password (00-99, 00 indicates
to cancel the locking.).
After pressing , press and to
choose the status of buzzer. 00 indicates
mute and 01 indicates working properly.

Program Parameter Table
Code Function Setting Range Ex-factory
Value Unit
-45℃
45℃
-15～15℃/°
0～10
-45℃/40°
20℃/100°
00
1
2/5
℃/°
Min
00
01～60 10
00～24
Hour
6
00～45℃
05/40
00～01 00
00=Synchronous
operation
01=Running
00
00～99 00
-15～15℃/°
-
Min
-40°
FF
F
120°
F
F
F
F
℃/°
F
℃/°
F
℃/°
F
F
℃/°
F
00 storage temperature
01defrost start temperature
to temp.control-1
temp.control-1 to
32～110°
0
00＝Electric defrost
01＝Heatingdefrost
-
00～10 02 Min
-
1-10℃
1-36°
F
℃/°
F
00～99 00
-
00～01 00
-
Min
℃/°
F
-
00=℃
01=°
00
℃/°
F
F
00=Press F8 the parameter
values running
01=Press F9 the parameter
values running
00～20 02
-20~20℃
F
-04~68°
-08℃
F
-18°
00
Password input
Min. limit
Max. limit
Temperature return
difference
Delayed time
Temperature
calibration
Defrosting
calibration
Defrosting type
Defrosting time
Defrosting cycle
Defrosting termination
temperature
Temperature display
in defrosting
Fan startup mode
Water dripping time
after defrosting
Fan startup mode
after defrosting
Fan startup time
after defrosting
Fan startup temperature
after defrosting
Temperature unit
conversion
Password setting
Buzzing setting
Descriptions: If a password is set, the locking indicator will light, and
the other parameter values can be modified only when a correct
password is input, otherwise the set parameters only can be searched
but not modified, and the password menu is hidden, but the control
temperature still can be modified. When the password is set as 00, the
password is cancelled and it is unnecessary to input password
(locking indicator is off). When F7 is set as 00, F8 is enable and F9 is
disable; when F7 is set as 01, F9 is enable and F8 is disable
Electrical Wiring Diagram
Mode：EW-T205
56 7 8 9 1
0
1234
NTC
Sensor
220V/AC
12V/AC
16A
5A
11
1
2
8A 5A
Load
Defrosting
Fan
Alarm
Warehouse
Temperature
Defrosting
Troubleshooting
Troubles
Power no display
With display but no operation
Displayed temperature unstable
or malfunction
Difference betweentemperature values
in warehouse and measured value of
temperature controller large
Not shut down after temperature
reached
Refrigerating machine
overfrequency
LL shown
HH shown
Causes Solutions
Whether the power source is off;
Whether the temperature controller is
defective.
Set temperature higher than the current
temperature;Pressure overrun and overloaded,
thermal protection opens;Internal thermal
protection of compressor opens.
Sensor circuit interfered; connection poor;
binding with other power cords; circuit
damage too weak.
Installation position of sensors incorrect;
Connecting wire too long, line resistance
large; contact of connecting wire poor;
sensor damaged.
Sensor installed incorrectly, unable
to measure value correctly;
Contactor of compressor defective.
Return difference temperature value too small or
pressure protector setting incorrect.
Ultralow temperature alarm or sensor line off.
Ultralow temperature alarm or sensor line shorted.
Check the power supply line, and replace the fuse;
Check whether the power end is imputed, or inform
the distributor to replace the temperature controller.
Reset the required temperature control value;
Check overrun and overload, check overheat
causes, and eliminate the troubles before reset to
work.
Separate sensor with power cord or replace
shielded wire, check whether connecting
terminal be tightened.
Must install sensors correctly; increase cross
section of extension wire; ensure sealing
property of connecting wires, water and
moisture proofing; replace sensor.
Check whether sensor measures temperature
correctly; replace contactor of compressor.
Readjust to increase return difference temperature
value; adjust pressure protector setting.
Check set data or check whether sensor line
connected well with joint.
Note: When LL or HH is shown, the machine will run automatically in the running mode before trouble occurred to guarantee the
temperature not affected much.
Warnings
Feature Descriptions
Note: When you press Heat key, if defrost sensor temperature
≥exit defrost temperature, the system can not enter defrost sta-
ge, to keep the current state.
Cooling: When the current temperature ≥ setting temperature +
temperature hysteresis and delay the setting of the "delay time",
the load relay On.
Into defrost：
1. when the instrument after defrost (or boot) to run a set running
period of time and then into defrost (load relay Off, defrost relay
On, defrost indicator On).
2.press UP key into the defrost (load relay Off, defrost relay On,
defrost indicating On).
Exit the defrost：
1.entering the defrost time and delay after the set defrosting time ,
defrost relay off, defrost indicator off, exit the defrost status,
return to the normal control status.
2. the exit temperature to defrost, defrost relay off, defrost LED is off,
return to the normal control.
1. Please read this product instruction carefully and connect
input/output plugs of power & sensor to the corresponding sockets
strictly by following connection diagram, otherwise the usage &
operations will be affected. Check again to make sure there is no
mistake. Tighten all the screw of connection plugs again, and then
connect it to the power for running.
3. All our products have passed strict quality inspections
before leaving factory. We provide one-year quality guarantee
(which is limited to product itself) period for this product.
If you have any doubt or problem concerning the electronic
temperature or humidity controller made by us, please contact
our distributors and we will provide you high-quality after-
sale services. Thanks!
Guangzhou Eliweli Autocontrol Tech. Co., Ltd.
http://www.eliweli.com
2. Keep away this product from moist or corrosiIve air and high
magnetic field. Otherwise the normal operaton of this product will
be affected.