EWELLY EW-801AH User manual

1. Low temperature zone temperature settings: Press displays the
temperature of low temperature zone, press or to change the
controlling temperature. Without pressing any key when finished operating，it
will automatic save memory setting parameters after six seconds.
2.Parameter setting: Holding and after six seconds to enter Setup,
the corresponding indicator flashes, more than once every press to run the
next function indicators, then press or to change the parameters for
each function. Without pressing any key when finish operation, it will
automatic save memory setting parameters after six sec o n d s .
Code：M801AH.15.08.18
Microcomputer Thermostat Serial
《EW-801AH 》Directions
This product is mainly used in solar water heater equipment, the use of
the temperature difference and temperature to control the output. This
product has two-ways output control, one way to control the temperature
difference between the two temperature zones, when the temperature
difference reaches the set value, automatically run the pump cycle, the
temperature of the two temperature zones to reach equilibrium, another
way to control electric heating; when solar heating fails reached (low
temperature) set temperature, the electric heating system is heated
to a set temperature automatically start and automatic temperature control
range values 󰾬󰾬within a temperature difference.
1、 ：AC220V ±10％ 50HZ/60HZ
2、 ：5A/220V/AC
3、 ：≤3W
4、 ：-10℃ ～50℃ RH≤90％
5、Control of heating：2℃～99℃
6、Control of thermal start-up：3℃ ～50℃
7、Resolution：1℃ Accuracy：±1℃
8、nput signal：two-ways sensors，20KX1.5mX2
9、 ：76(L)×35(H)×76(D)mm
10、Hole Size：71(L)×29(H)mm
Operating voltage
Load
Power Consumption
Working environment
Overall Dimension
Output
Panel Diagram
Display the current temperature of
the low temperature zone
Running lights
1.The voltage must accord with controller's demand.
The voltage's deviation is no more than ±10%.
2.The loop of sensor is possible to keep away from the
loop of power.
3.The sequence of line's must have been connected
Properly.
When two temperature sensor detects a
temperature of two zones, the difference is greater
than the value of thetemperature difference
between the set start value, the circulation pump
relay ON, temperature difference setting range:
temperature of the pump stopped+1 ℃ ~ 50 ℃.
Temperature difference between the started
Temperature hysteresis
After reaches the set point and stop
heating, temperature down, and then
restart the difference between electric
heating, temperature hysteresis setting
range: 1 ℃ ~ 20 ℃.
High temperature zone temperature correction
Low temperature zone temperature correction
When the thermostat detects the
temperature of the high temperature
zone and the actual value error, this
feature can be amended. Correction
range: -10 ℃ ~ 10 ℃.
When the thermostat detects the
temperature of the low temperature
zone and the actual value error, this
feature can be amended. Correction
range: -10 ℃ ~ 10 ℃.
Sensor error self-test function
When the high temperature zone
sensor circuit or open circuit
will show "EH" symbol.
When the low temperature zone
sensor circuit or open circuit will
show "EL" symbol.
EW- 8 0 1
EW - 8 01
EW - 8 01
EW - 8 01
EW - 8 01
EW - 8 01
EW - 8 01
EW - 8 01
Temperature difference of the pump stopped
When the temperature difference between the two
sensors is less than this value, the circulation pump
stops, Range 1 ℃ ~ started temperature difference-1 ℃ 。
Note: When difference of the pump stops setting “0”,
once the circulation pump relay ON, circulation
pump not stopped.
Technical Specifications
Demand of install
Brief on Controlling Procedure
Ewelly
Ewelly
Ewelly
Ewelly
Ewelly
Ewelly
Ewelly
Ewelly
In the non setting state, press can see the current
temperature of the high temperature zone.
EW - 8 01
Heating temperature difference
High temperature zone must be
higher than the setting temperature
difference. Equal or less than this
value automatically start heating
control. Heating temperature
range:0℃～20℃。
EW - 8 01

Lights NO.Function Setting range
Ex-factory
Value
Unit
NO.1Indicator
NO.1.2 Indicator
NO.2 Indicator
NO.3 Indicator
NO.4 Indicator
Temperature difference
start-up
Temperature
difference
High temperature
correction
Low temperature
correction
Temp.difference
of stopped pump+1～50
1～20
-10～10
-10～10
5
5
0
2
0
℃
℃
℃
℃
℃
Wiring Diagram
Failure Causes Precautions
No display when power
is on.
Check if the power is broken or the
thermostat failture. 。
Check power supply and change fuse.
Check if the input voltage is right or
change the thermostat with our distributor.
Displaying but machine
doesn't work
The setting temperature is lower than the
present temperature.
The heat protector is open circuit because the
pressure is over loads.
Reset the necessary controlling temperature.
Check the reasons for overload and overheating.
After the trouble is solved, restart to work.
Displayed temperature is
unstable or there exists
misplay.
The sensor is interfered; or poor wiring;
or Together with other power cord bundle；
or line damage.
Separate sensor wiring with power cables
or change shielded lines or check if the contact
is tight or not.
Measurement error between
current temperature and
displayed.
The installation position of the sensor is not
correct; or the sensor's wiring is too long and
its resistance is over; or the wiring connected
poor; or the sensor is damaged
All sensors should be corrected at their locations.
Enlarge the cross section of the expanded wires.
Make sure the wires sealed is good. or Change the
sensor.
Machine does not stop
when the temperature
reaches.
The sensor is not correctly installed and cannot
measure the correct temperature. Compressor
contactor fails.
Check if the sensor has accurately measured
the temperature or not. Change compressor
contactor.
Relay work with overload
“EH” or “EL” is displayed
Return difference value is too small or the
setting for pressure protection is not correct.
The sensor is opened or shorted circuit.
Reset and enlarge return difference value. Adjust
setting for pressure protection.
Check to see if the sensor wiring has good contact
with coupling end or not.
Stop the pump
temperature
1～temp.difference
started-1
High-temp.
Sensor
Low-temp.
Sensor
Model: EW-M801AH
Output load：
220V/AC
5A 5A
220V/AC
1234567891
01
1
Controlled
Heating
Water pump
circulation
Note: When the temperature difference is set at 0, the electric power is entered
into the heating state.
At the same time, press the set key and key 6 seconds will restore
the factory settings
Parameters for Procedure
Trouble shooting
NO.3.4 Indicator Heating temperature
difference 0～20 ℃
5
Warnings
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.
2. Keep away this product from moist or corrosive air and high
magnetic field. Otherwise the normal operation of this product will
be affected.
.
3. All our products have passed strict quality inspections before
leaving factory. We provide one-year quality guarantee (which is
limited to product itself ,and is not responsible for any other joint
and several liability) 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
If the products including but not limited to, the following is
not the product itself quality problem caused by the damage,
Install and use under the do not conform to the safe environment;
That the load capacity is beyond the scope of product is allowed;
Products by users to disassemble and change, change the internal
components, etc.,We will not be so and damaged products
provide a replacement and maintenance services, regardless of
whether its in the quality assurance period; Meanwhile, we will
not assume so direct or indirect losses caused by the liability to
pay compensation.
Product warranty date on the case is important basis of
product quality assurance. Appeared including but not limited to
full filling without permission, to change, to replace lost,
damaged, scratched, dirty, and so on, we will not provide a
replacement and maintenance services for these products.