OCSTAT E3RF User manual

Operating Instructions
English Language
Wireless RF
Room Thermostat

GENERAL DESCRIPTION OF THE THERMOSTAT
This type switched-mode room thermostat is suitable to regulate
the overwhelming majority of boilers available in Europe. It can
easily be connected to any gas boiler or air conditioning device
that has a double wire connector for a room thermostat, regardless
of whether it has a 24 V or 230 V control circuit.
Temperature can be measured more precisely as compared
to simple, conventional thermostats. In accordance with the
selected switching sensitivity, the thermostat will switch the boiler
or any other appliances on and off below and above the adjusted
temperature, respectively, and contributes to reduce energy costs
while maintaining comfort.
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The switching sensitivity of the thermostat is ± 0.1°C (± 0.2°C). This
means the difference between the adjusted temperature and the
actual temperature
measured during the
switching process.
For example, if
the factory default
setting is 20°C on
the thermostat, then
the device switches
the boiler on at
19.8°C or below,
and switches it off at
20.2°C or above.
The information shown on the liquid
crystal display of the thermostat
includes the following:
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Temperature
display
Temperature
measurement
unit
Room
temperature
Defrosting
mode
Cooling
Set
temperature
Low Battery
Indicator
Heating

1. LOCATION OF THE DEVICE
It is reasonable to locate it in a room used regularly or for many
hours per day so that it is in the direction of natural ventilation in the
room but protected from drought or extreme heat (e.g. direct
sunlight, refrigerator, chimney, etc). Its optimal location is 1.5 m
above oor level.
IMPORTANT WARNING!
If the radiator valves in your at are equipped with a thermostatic
head, replace the thermostatic head of the radiator valve with
manual control knob or adjust it to maximum temperature in the
room where the room thermostat is to be located, otherwise the
thermostatic head may disturb the temperature control of the at.
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2. INSTALLATION OF THE THERMOSTAT
• To install the thermostat, Remove the
rear panel of the thermostat from the
front panel using a screwdriver as
shown.
• With the help of the screws provided and
some tools fasten the rear panel of the
device to the wall.
• Using a small screwdriver, remove the
cover of the terminal block from the inner
side of the rear panel.
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Latch
Vertical angle:
30 - 45°

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Attention! The device must be installed
and connected by a qualied professional.
Always follow the manufacturer’s
instructions when connecting the
thermostat to any heating or cooling
appliance. The voltage appearing at
terminal No. 1, No. 2 or No. 3 depends
only on the system being controlled,
therefore the dimensions of the wire
are determined by the type of the
device to be controlled. The length
of the wire is of no signicance.

3. PUTTING THE THERMOSTAT INTO OPERATION
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To put the thermostat into operation, Remove the rear panel of the
thermostat from the front panel as shown
The battery compartment is on the inside of the front panel of the
case. Insert 2 AA alkaline batteries (TYPE LR6) into the battery
compartment as shown. After inserting the battery, the display
ashes to measure the room temperature

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4. Coding switch selection
After removing the rear panel of
the device, desired Settings can
be obtained by changing the
coded switch on the PCB
board.
HEAT
ROOM
+0.2℃+0.1℃
COOL
SET
The heating mode The Cooling mode
The LCD displays only
the environment
temperature
On the LCD, room temperature
and setting temperature are
displayed alternately.
Temperature sensitivity
of operating switch ±0.2℃
Temperature sensitivity
of operating switch ±0.1℃

5. SETTING THE DESIRED TEMPERATURE
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When the factory default temperature is set to 20°C and the factory
default temperature is set to 20°C, the temperature of the
thermostat switch on the connected heating device is lower than
19.8°C (connecting terminals 1 and 2) and higher than 20.2°C
(disconnected terminals 1 and 2) under the switch sensitivity
(±0.2°C).
Adjust the knob, the display screen at the upper left corner will
appear "SET" (adjust the temperature) prompt, the back is bright,
(SET the temperature on the display gray), adjust the knob can be
adjusted to 5-35℃.
• Approximately 5 seconds after setting the room temperature to
be maintained, the device automatically switches to normal mode.
The notice “ SET ” disappears from the bottom right corner of the
display, and once again the current room temperature is displayed.

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6. Heating Mode
According to the change in room temperature and temperature
setting, the device controls (switches on or off) the boiler or any
other heating equipment connected to the appliance. When
activated, the normally open contact pairs, i.e. No. 1 (NO) and No.
2 (COM), of the relay of the device clamp shut, and, as a
consequence, the appliance connected to the thermostat is
switched on. The appearance of the notice “HEAT” in the bottom
left corner of the display indicates that the device is activated.

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7. Cooling mode
According to changes in room temperature and temperature
setting, the equipment control (switch) is connected to the
refrigeration equipment. When activated, the normally open
contact pairs of the device clamp relay, i.e., No. 1 and No. 2 (COM),
are closed, so that the appliance connected to the thermostat is on.
The appearance of the "A/C" notication below indicates that the
device is activated.
8. Comfortable temperature and economical
temperature setting
Switch to the run comfortable
setting temperature (20℃ by default )
Switch to the run Economic
setting temperature (18℃ by default )

9. BATTERY REPLA CEMENT
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The average lifetime of the batteries is 1 year. The “ ” It is
displayed on the LCD,Replace the batteries whenever the “ ”
icon indicating low battery voltage appears on the display . After
battery replacement, the desired temperature should be adjusted
again, because during the battery replacement the thermostat is
reset to factory default settings.

1.Manual mode: Press MANUAL once, the green light will be on
(Manual mode), press M/A can control the Relay ON/OFF
(ON: red lights on, OFF: red lights off).
2.AUTO mode: Press MANUAL again, the green light will be off
(Auto mode), the ON/OFF will be controlled by the transmitter.
10. Receiver Operation (By press MANUAL to switch the
receiver operation mode)
1. Under the AUTO running mode, press MIA on the receiver for 10
secs to enter this mode, the green light will be ashing.
2. Remove the back cover of the transmitter, hold the LEARN button
on the PCB board for 3 secs, the receiver green light stops
ashing when it received the signals. Then the thermostats is
paired and the transmitter can control ON/OFF to the receiver
now.
11. LEARN CODE
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O: OFF
When there is no need to use the thermostat for some seasons, the
users can just trun OFF (by the left side of the receiver) the power
of the receiver and does not need to move off the front case;
|: ON
The receiver is normal operating.
12. ON/OFF button on the receiver
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TECHNICAL D ATA
— switchable voltage: 24 V AC / DC,…230 V AC; 50 Hz
— switchable current: 6 A (2 A inductive load)
— temperaturemeasurementrange: 0 to 40°C (in 0. 1°C increments)
— adjustable temperature range: 5 to 35°C (in 0.5°C increments)
— temperaturemeasurementaccuracy: ±0.5°C
— selectable switching sensitivity: ±0.1°C / ±0.2°C
— storage temperature: -10°C to +60°C
— power supply voltage: 2x1.5 VAA alkaline batteries (LR6 type)
— power consumption: 1.5 mW
— battery lifetime: approx. 1 year
— dimensions: 119 x 80 x 31 mm
— weight: 121 g
— temperature sensor type: NTC 10 kΩ ±1% at 25°C
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— operating frequency: 868. 35MHz

RoHS Directive 2011/65/EU
Radio Equipment Directive 2014/53/EU
This type thermostat complies with the requirements of EU
standards.