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
°
F
F
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
5 6 7 8 9 10
1
2 3 4
NTC
Sensor
220V/AC
12V/AC
16A
5A
11
12
8A 5A
Load
D
e
fr
o
st
in
g
F
a
n
A
la
rm
W
a
re
h
o
u
se
T
e
m
p
e
ra
tu
re
D
e
fr
o
st
in
g
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.
