EPH CONTROLS 20221108 RF Cylinder Thermostat Instruction Manual

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Operating Instructions  

RFC - RF Cylinder Thermostat  

Contents  

1. Factory default settings  

2. Specification & wiring  

3. Mounting  

CAUTION!  

4. Installation  

5. Button / symbol description  

6. Resetting the thermostat  

7. Boost function  

8. Lock function  

9. To connect the RFC thermostat to the  

R_7-RF programmer  

Only qualified electricians or authorised  

service staff are permitted to open the  

thermostat.  





Ensure that this wireless enabled  

thermostat is installed 1 metre from any  

metalic object, television, radio or wireless  

internet transmitter.  

10. To disconnect the RFC thermostat from  

the R_7-RF programmer  

Important: Keep this document  

Prior to setting the thermostat, it is neccessary to complete all required settings described  

in this section.  

5. Button / symbol description  

1. Factory default settings  

Temperature indicator:  

Switching differential:  

In built frost protection:  

Keypad lock:  

°C  

Wireless symbol  

5°C  

5°C  

Off  

Heating ON symbol  

Water temperature  

Battery low symbol  

Boost button  

2. Specifications & wiring  

Power Supply:  

2 x AAA Alkaline Battery  

Set point handwheel  

Power consumption:  

Battery replacement:  

Temp. Control Range:  

Dimensions:  

50 uA  

Once per year  

10...90°C  

84 * 84 * 30mm  

Temp. sensor:  

NTC 10K Ohm @ 25°C - 1.5m probe type  

°C  

Temp. indication:  

Code button  

3a Mounting of temperature sensor  

ON CYLINDER: To ensure accurate control of your cylinder, the temperature  

sensor should be mounted on the bottom 1/3 of the cylinder. It is essential that  

the sensing element is in direct contact with the cylinder and that there is no  

insulation between it and the cylinder. 60°C is the temperature level required in  

order to prevent the build up of legionella bacteria. The temperature sensor can  

be fixed to the cylinder using the provided foil tape.  

Reset button  

6. Resetting the thermostat  

Press the  

button on the bottom of the thermostat, the front housing  

will detach from the baseplate.  

ON PIPEWORK: To ensure accurate control, the temperature sensor should be  

mounted on the pipework as tightly as possible. It is essential that the sensing  

element is in direct contact with the pipework and that there is no insulation  

between it and the pipework. The temperature sensor can be fixed to the  

pipework using the provided foil tape.  

Insert the batteries into the thermostat.  

Press the reset button on the PCB, ‘NO’will flash on the screen.  

Rotate the hand wheel clockwise until ‘YES’appears on the screen.  

Press the hand wheel once to confirm the setting.  

3b Mounting of thermostat  

The thermostat has now been reset and the current temperature will  

appear on the screen.  

The thermostat should be mounted in a position that will make reading  

the display conventient.  

7. Boost function  

The thermostat can be fitted to: 1. Recessed conduit boxes  

2. Surface mounting boxes  

Press the boost button once, twice or three times to boost the heating for  

1, 2 or 3 hours respectively. +1H, +2H or +3H will appear on the screen.  

3. Directly on walls  

The boost function will override the programmer if the programmer is  

timed to be Off.  

4. Installation  

Press the button on the bottom of the thermostat.  

The front housing will detach from the baseplate.  

Insert the batteries (provided) into the thermostat.  

8. Lock function  

To lock the thermostat, press the hand wheel for 10 seconds. The keypad  

symbol will appear on the screen.  

Mount the unit as described in section 3. Ensure the cable sensor is  

connected to terminals Con 3 and Con 4.  

To unlock the thermostat, press the hand wheel for 10 seconds. The  

keypad symbol will disappear from the screen.  

Offer the baseplate up to the thermostat. Snap it into position to close.  

EPH Controls Ireland  

EPH Controls UK  

technical@ephcontrols.com www.ephcontrols.com  

technical@ephcontrols.co.uk www.ephcontrols.co.uk  

20221108_RFC_OpIns_PK  

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General	Details
Name	EPH CONTROLS 20221108 RF Cylinder Thermostat Instruction Manual
Make	EPH CONTROLS
Language	English
Filetype	PDF (Download)
File size	0.11 MB

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EPH CONTROLS 20221108 RF Cylinder Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Operating instructions for the RFC - RF Cylinder Thermostat include factory default settings, specifications and wiring, mounting, installation, button and symbol descriptions, resetting the thermostat, boost function, and lock function. Only qualified electricians or authorized service staff are permitted to open the thermostat. Ensure that the wireless-enabled thermostat is installed 1 metre from any metallic object, television, radio, or wireless internet transmitter. The temperature sensor should be mounted on the bottom third of the cylinder or tightly on the pipework for accurate control. To reset the thermostat, press the reset button on the PCB and confirm the setting by rotating the hand wheel. The boost function allows for heating to be boosted for 1, 2, or 3 hours. To lock the thermostat, press the hand wheel for 10 seconds; to unlock, press again for the same duration. Insert the batteries into the thermostat as part of the installation process. The thermostat should be mounted in a position that allows for convenient reading of the display. The thermostat can be fitted to recessed conduit boxes, surface mounting boxes, or directly on walls.
• Page 2: Operating instructions for the RFC - RF cylinder thermostat include connecting and disconnecting the thermostat with the programmer. To connect the RF thermostat, lower the cover on the front of the timeswitch/programmer and move the selector switch to the RUN position. Press the button on the timeswitch/programmer for 5 seconds to access the Wireless Connect screen. On the thermostat, press the Code button located inside the housing on the Printed Circuit Board. Available zones will begin to flash on the timeswitch/programmer. Select the zone you wish to connect the thermostat to by pressing the corresponding button. The thermostat will display the zone it is paired to after a countdown. To disconnect the RF thermostat, lower the cover and move the selector switch to the RUN position. Press the button on the timeswitch/programmer for 5 seconds to enter the Wireless Connect screen and then press the button for 3 seconds to clear all RF connections. The timeswitch/programmer will now operate in wireless mode, displaying the temperature of the wireless thermostat.