EPH Controls CP4B Installation And Operation Manual

3 4 Specifications 5 Wiring Diagram 6 How your programmable thermostat works 7 13 Operating Instructions 13 12 11 15 16 Table of contents 17 18 19 19 20 Frost Protection Mounting & Installation Resetting the thermostat Keypad lock and unlock Setting the date, time, programming mode and daylight sav ...

PO 3 Hysteresis H On and H Off Optimum Start Normal PO 1 Operating Mode Holiday Function Battery low warning Backlight mode selection Replacing the batteries PO 4 Calibrate the thermostat PO 5 Frost Protection PO 6 Exit Installer menu - OpenTherm 32 P ...

Factory Default Settings Contacts: Volt Free Temperature indicator: ˚C Switching differential: 0.4˚C In built frost protection: 5˚C - Not adjustable Clock: 24 hours Keypad lock: Off Operating mode: 5/2 day Frost Protection 5˚C Frost protection is built into this thermostat. It is set at 5°C and is not adjust ...

Specifications Power supply: 2 x AA Alkaline Batteries Battery replacement: Once a year Temp. control range: 5 … 35˚C Ambient temperature: 0 … 45˚C Contact rating: 8A 230Vac Dimensions: 130 x 99 x 25mm Temperature sensor: NTC 100K Ohm @ 25˚C Temperature indication: ˚C Switching differential: 0.4˚C Frost protection: Only operat ...

terminal COM. Important: Do not connect Mains Voltage to OpenTherm®terminals. Wiring Diagram ON O T OFF COM (OpenTherm) Internal Wiring Diagram for CP4B ...

When the thermostat is in the AUTO mode, it will operate according to the times and temperatures that have been programmed. The user can select from 6 different programs per day, each with a time and a temperature. There is no OFF time, only a higher and a lower temperature setpoint. If the user does not want the thermostat to operate, ...

Caution! � Installation and connection should only be carried out by a qualified person. � Only qualified electricians or authorised service staff are permitted to open the thermostat. � If the thermostat is used in a way not specified by the manufacturer, its safety may be impaired. � Prior to settin ...

1) The mounting height should be 1.5 metres above the floor level. 2) The thermostat should be wall mounted in the room where the heating is to be controlled. The place of installation should be chosen so that the thermostat can measure the room temperature as accurately as possible. Exposure to direct sunlight or other heating / cooli ...