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This guide is for users of the EPH CP4D Opentherm Programmable Thermostat, offering intuitive temperature control and compatibility with various boiler types. It provides quick and smooth temperature adjustments with a clear display, benefiting those seeking efficient heating management. Please note that remote control via smartphone requires the separate purchase of the EPH GW04 Gateway.
| Model Part Number | CP4D |
|---|---|
| Brand | EPH |
Use the handwheel to adjust the temperature. The current set temperature will be displayed on the screen.
Refer to the user manual for instructions on how to activate boost mode.
OpenTherm is a communication protocol that allows the thermostat to modulate the boiler’s output for greater efficiency and comfort.
Refer to the user manual for instructions on setting the holiday mode.
The thermostat may lose settings. Replace the batteries as soon as the low battery indicator appears to avoid this.
Not directly. Remote control is possible with the addition of the EPH GW04 Gateway, which is sold separately.
The installation guide is included in the package. A digital copy may also be available on the manufacturer's website.
Check the battery installation and replace batteries if necessary. Ensure the batteries are inserted correctly.
Check the distance between the thermostat and receiver. Ensure there are no obstructions. Re-pair the devices following the instructions in the manual.
Ensure the thermostat is not placed in direct sunlight or near heat sources. Calibrate the thermostat according to the instructions in the manual.
Check the boiler’s settings and ensure it's compatible with OpenTherm. Verify the wiring connections between the receiver and the boiler. Reset both the thermostat and receiver.
