Home > EPH CONTROLS > EPH CONTROLS eTRV Smart Radiator Thermostat Instruction Manual
EPH CONTROLS eTRV Smart Radiator Thermostat Instruction Manual
| General | Details |
|---|---|
| Name | EPH CONTROLS eTRV Smart Radiator Thermostat Instruction Manual |
| Make | EPH CONTROLS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.66 MB |

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EPH CONTROLS eTRV Smart Radiator Thermostat Instruction Manual Overview
Summary of Contents
- Page 1: Smart radiator thermostat installation and operation guide.
- Page 2: Table of contents Installation instructions Factory default settings Specifications Important notes How your eTRV works Mounting & installation Operating instructions LCD symbol description Button description Replacing the batteries
- Page 3: Operating instructions Calibrate Setting high and low limits Resetting the eTRV Backlight - Auto Installation direction Hysteresis
- Page 4: Smart radiator thermostat installation instructions.
- Page 5: Factory default settings Keypad lock Installation position Boost temperature Power supply Battery replacement Temperature control range Dimensions Ambient admissible humidity Hysteresis (switching differential)
- Page 6: Important notes It is extremely important to use good quality batteries in the eTRV to ensure correct operation of the product. EPH recommend using Li-FeS2 (Lithium Iron) batteries. Poor quality batteries may cause the product to stop communicating wirelessly and fail to operate correctly. Low power or discount store battery brands should not be used. A battery low notification will appear on the eTRV and the EMBER app when the battery is low. Batteries should be changed immediately as the eTRV will stop operating soon after this notification. When the eTRV shows a fault E4, it is normally due to a battery issue. The eTRV detects temperature and communicates on cycles every 4 minutes to conserve battery power. When buttons are pressed on the eTRV, changes will be saved but may not communicate immediately to the RF16 controller. The eTRV is designed for use with EPH TRV Valve bodies.
- Page 7: How your eTRV works The eTRV is designed to control and operate a radiator valve wirelessly. When the eTRV is calling for heat, it will communicate wirelessly to the RF16 controller which will activate your heating system to heat the radiator. When the eTRV reaches its defined setpoint temperature it will close the radiator valve and stop calling for heat. The temperature setpoint is defined by the program settings on your RF16 controller, via the EMBER app or by using the buttons on the eTRV. If the room temperature is lower than the target temperature then the eTRV will open the radiator valve and request the heating system to activate. When calling for heat your eTRV will show a flame symbol on the screen. When the eTRV is in MANUAL or AUTO, the screen will display the current room temperature. When the eTRV is in the OFF mode the screen will display the word ‘OFF’.
- Page 8: Mounting & installation Ensure the eTRV is positioned in an area that has good air flow so it can detect temperature effectively. Ensure the eTRV is out of direct sunlight. If the eTRV or RF16 are used in a way not specified by the manufacturer, its safety may be impaired. Prior to setting the eTRV, it is necessary to complete all required settings described in the mounting & installation section. Ensure the valve body is free of dust and debris. Ensure the valve body is dry and not leaking.
- Page 9: Press and hold the release mechanism on the side of the eTRV to slide off the cover. Insert the 2 x AA batteries and replace the cover. Pair the eTRV to the RF16. Mark the eTRV zone using the stickers provided. Note the room name on the 16 zone list to help identify the zones in the future. The eTRV can be mounted to a radiator valve with a M30 x 1.5mm thread. Rotate the ring at the base of the eTRV to thread onto the radiator valve until tight. It’s recommended that the eTRV is opened to make it easier to mount. Position the eTRV on the radiator valve so the screen is orientated correctly. The eTRV is designed for use with EPH TRV valve bodies.
- Page 10: Smart radiator thermostat operating instructions.
- Page 11: - LCD symbol description - Wireless symbol - Open window - Function active - Battery low - Limit active - Room temperature - Boost time - Lock - Heating ON symbol
- Page 12: Button descriptions include the minus button, boost button, plus button, and on/off button. Shortcuts are available for various functions. Holding buttons for specific durations enables features like keypad lock, menu access, RF connection, and open window function.
- Page 13: Replacing the batteries involves pressing and holding the release mechanism on the side of the eTRV while pulling the cover up to slide it off. Remove and replace the 2 x AA batteries, ensuring to use good quality batteries for correct operation. Slide the cover back on to the eTRV to return it to normal operation. Lithium Iron batteries are available from EPH Controls Ltd.
- Page 14: Error codes will be displayed if there is a problem with the eTRV. E4 indicates a motor issue and suggests checking the batteries. If E4 persists after using premium batteries, the eTRV needs to be replaced. A low battery indication will appear on the screen when batteries are low. The low battery icon will also show on the zone in the EMBER App. It is recommended to change the batteries immediately when the low battery indication appears.
- Page 15: Boost function allows the eTRV to be set to a specific temperature for 30 minutes, 1, 2, or 3 hours. Press once for 30 minutes, twice for 1 hour, three times for 2 hours, or four times for 3 hours. Press the appropriate button to set the desired temperature for the boost period. The duration will appear on the screen, and the eTRV will return to the home screen after 5 seconds. To cancel a boost, press the designated button when the boost is active. Locking the eTRV requires pressing and holding two specific buttons for 10 seconds. A lock icon will appear on the screen, indicating that the buttons are disabled. Unlocking the eTRV is done by pressing and holding the same two buttons for 10 seconds. The lock icon will disappear, and the buttons will be enabled again.
- Page 16: Changing the mode allows you to switch between AUTO, MANUAL, and OFF modes. In AUTO mode, the system operates automatically. In OFF mode, the system is turned off. In MANUAL mode, you can set the temperature manually. To adjust the target temperature, press the appropriate buttons to increase or decrease it. The target temperature is saved after adjustment. A temporary override occurs when the temperature is changed in AUTO mode, reverting to programmed settings later. A permanent override happens when the temperature is changed in MANUAL mode, permanently altering the target temperature.
- Page 17: Connecting an eTRV to the RF16 Controller involves several steps. Press the MENU button to access the pairing options. ‘P01 rF Cn’ will appear on the screen, and you need to press to confirm. ‘01’ will then appear on the screen. Rotate to select the required zone and press to confirm that zone. ‘CONNECT’ will appear flashing on the screen. Zones that are flashing are available for pairing, while solid zones have already been paired.
- Page 18: Connecting an eTRV to the RF16 Controller On the eTRV, press and hold for 5 seconds. ‘nOE’ will appear on the screen followed by ‘ - - ’. The eTRV will display ‘r ‘ followed by the zone number. Press to exit from the screen. On the RF16, ‘CONNECTED’ will appear solid on the screen when the eTRV is successfully paired. Rotate to pair the next available zone and repeat the MENU process or press to exit. Press to return to normal operation at any time.
- Page 19: Disconnecting an eTRV from the RF16 Controller To disconnect all zones: On the RF16, press MENU. ‘P01 rF Cn’ will appear on the screen. Rotate clockwise until ‘P06 rF dn’ appears on the screen. Press to confirm. ‘ALL’ will be flashing. Press to select ALL. ‘nO’ will appear on the screen. Rotate until ‘YES’ appears on the screen. Press to confirm disconnection. (This allows you to disconnect all connected zones at once)
- Page 20: Disconnecting an eTRV from the RF16 Controller To disconnect an individual zone: On the RF16: Press MENU on the RF16. ‘P01 rF Cn’ will appear on the screen. Rotate clockwise until ‘P06 & rF dn’ appears on the screen. Press to confirm. ‘All’ will be flashing. Press to select an individual zone. Rotate to select the zone to be unpaired. ‘nO’ will appear on the screen. Rotate clockwise. ‘YES’ will appear on the screen. Press to confirm disconnection.
- Page 21: Open window function Enabling this feature will stop the zone from operating if the eTRV detects a drop in temperature of over 1.5°C within 3 minutes. When this is detected, the eTRV will display the open window symbol and will stop reading temperature. That zone will be prevented from turning on even if it falls below its setpoint. The open window function will disable if the temperature rises by 0.5°C within 3 minutes or if the temperature stays low for more than 15 minutes. Press and hold for 5 seconds. ‘OFF’ will appear on the screen. Press until ‘On’ appears on the screen.
- Page 22: P1 CAL - Calibrate This function allows the user to calibrate the temperature reading of the eTRV. It’s strongly recommended that you should leave the eTRV for a minimum of 20 mins to acclimatise to the room temperature before calibrating. Do not hold the eTRV during this time as it can increase the temperature reading. Press and hold ‘CAL’ will appear on screen. The current actual temperature will appear on the screen. Use to adjust the temperature reading. Press to confirm and you will return to the menu. Press to exit at any point.
- Page 23: Hi & Lo – Setting high & low limits This function allows the user to change the minimum and maximum temperatures that the thermostat can be set to between 5...35°C. Press and hold for 5 seconds. ‘CAL’ will appear on the screen. Press until ‘LIn’ appears on the screen. Use to select ON. ‘Hi’ will appear on the screen & the temperature will flash. Use to select the high limit. ‘Lo’ will appear on the screen & the temperature will flash. Use to select the low limit. ‘LIM’ will appear on the screen of the eTRV.
- Page 24: Resetting the eTRV allows the user to restore factory default settings. To reset, press and hold specific buttons for 5 seconds until 'CAL' appears on the screen. Select 'rSt' when it appears. 'No' will flash on the screen, and you can adjust to 'YES' to confirm the reset. The eTRV will reset and switch to OFF mode. You can change between Manual, Auto, and OFF modes.
- Page 25: Backlight settings allow the user to select between OFF or Auto. In Auto mode, the backlight activates for 5 seconds when a button is pressed. In OFF mode, the backlight is permanently off. To access backlight settings, press and hold specific buttons for 5 seconds. ‘CA L’ will appear on the screen during the process. Navigate until ‘b L’ appears on the screen to select backlight options. ‘AUt’ will display on the screen when Auto is selected. Use designated buttons to adjust between Auto and OFF. Press to confirm your selection and return to the menu. You can exit at any point during the process.
- Page 26: Installation direction is crucial for the eTRV's performance. Select the correct setting based on whether the eTRV is mounted vertically or horizontally. The installation direction affects how the eTRV senses temperature. To change the setting, press and hold specific buttons for 5 seconds until 'CAL' appears. Navigate to 'InS' on the screen to select the installation direction. 'ud' indicates vertical direction, while 'Hd' indicates horizontal direction. Use the adjustment buttons to set the correct direction. Press to confirm the selection and return to the menu. You can exit at any point during the process. Make sure to follow these steps for optimal eTRV functionality.
- Page 27: HOn - Hysteresis This menu allows the installer to change the switching differential when the temperature is rising and falling. If ‘H ON’ is set at 0.4˚C and the setpoint is 20˚C, then the thermostat will turn on when the temperature drops below 19.6˚C. If ‘H OF’ is set at 0.2˚C and the setpoint is 20˚C, then the thermostat will turn off when the temperature reaches 20.2˚C. Press and hold for 5 seconds. ‘CAL’ will appear on the screen. Press until ‘HOn’ appears on the screen. ‘On’ temperature will begin to flash. Use to adjust the HOn temperature. Press to confirm. ‘OF’ temperature will begin to flash.
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