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Details factory default settings for contacts, temperature indicator, switching differential, frost protection, clock, keypad lock, and operating mode.
Explains the built-in frost protection feature, set at 5°C and not adjustable, active in OFF mode when room temperature falls below 5°C.
Lists technical specifications including power supply, battery replacement, temperature control range, ambient temperature, contact rating, dimensions, and sensor type.
Provides the internal wiring diagram for the CP4B thermostat, detailing terminal connections and important notes on mains voltage.
Describes the AUTO mode operation, programmed times/temperatures, and the concept of higher/lower temperature setpoints.
Outlines crucial safety precautions and general guidelines for installing the thermostat, emphasizing qualified personnel and proper mounting.
Explains the meaning of various symbols displayed on the thermostat's LCD screen, including program status, day of the week, and temperature.
Identifies and describes the function of each button on the thermostat, including mode selection, setting adjustments, and confirmation.
Provides step-by-step instructions on how to reset the thermostat to its default factory settings using the dedicated reset button.
Details the procedure for locking and unlocking the thermostat's keypad to prevent accidental changes to settings.
Guides users through setting the current date, time, programming mode (5/2d, 7d, 24h), and activating Daylight Saving Time.
Displays pre-set temperature and time schedules for 5/2 Day, 7 Day, and 24 Hour programming modes.
Explains the three available programming modes: 5/2 Day, 7 Day, and 24 Hour, detailing their respective scheduling capabilities.
Instructs on how to modify the program settings for weekdays and weekends in the 5/2 Day mode, adjusting times and temperatures.
Describes how to use the copy function to duplicate program settings from one day to another within the 7-day mode.
Explains how to temporarily adjust the temperature setpoint, which will remain active until the next scheduled switching time.
Details how to enter manual mode (Permanent Override) to maintain a set temperature indefinitely until manually cancelled.
Describes how to activate a temporary heating boost for a set duration and temperature, overriding the current program.
Guides users on setting a holiday period to switch the heating system off and on at specified start and end times.
Explains how to select between OFF (permanently off) and AUTO (on for 5 seconds after button press) for the backlight.
Informs users about the battery low warning symbol and the need to replace batteries to prevent unit shutdown.
Provides a step-by-step guide on how to open the battery compartment, replace the batteries, and close the compartment.
Configures the thermostat's operating mode, including Normal, Optimum Start (OS), and Time Proportional & Integral (TPI) control.
Allows installers to define the minimum and maximum temperature ranges that the thermostat can be set to.
Enables adjustment of the switching differential (hysteresis) for temperature rising (Hoff) and falling (HOn).
Provides the function to recalibrate the thermostat, allowing adjustment of the displayed temperature reading.
Allows installers to activate or deactivate the frost protection feature, which maintains a minimum temperature to prevent freezing.
Option to exit the installer menu and return to the main interface.
Configures the Domestic Hot Water (DHW) temperature for the boiler when connected via OpenTherm.
Displays information received from the OpenTherm boiler, such as target water temperature, outlet water temp, and flue gas temperature.
Enables or disables DHW target temperature control from the thermostat when using OpenTherm.
Allows configuration of OpenTherm parameters, including climatic curves and setpoint adjustments.
Option to exit the installer menu and return to the main interface, also applicable to OpenTherm settings.
General| Brand | EPH Controls |
|---|---|
| Model | CP4B |
| Category | Thermostat |
| Language | English |
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