EPH Controls CDT2-RF Installation And Operation Manual
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EPH Controls CDT2-RF Installation And Operation Manual

Mains rf room thermostat
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CDT2-RF
Mains RF Room Thermostat
Installation and Operation Guide

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Summary of Contents for EPH Controls CDT2-RF

  • Page 1 CDT2-RF Mains RF Room Thermostat Installation and Operation Guide...

  • Page 2: Table Of Contents

    Operating Instructions On / O Function Adjusting the Target Temperature Locking the Keypad Backlight P0 1 Connecting a CDT2-RF Menu P0 2 Operating Mode (Normal/Delay Start/TPI) P0 3 Setting High and Low limits P0 4 HYS - Hysteresis P0 5 Calibrate...

  • Page 3: Installation Instructions

    Mains RF Room Thermostat Installation Instructions...

  • Page 4: Factory Default Settings

    Factory Default Settings Temperature indicator: ˚C Keypad lock: Backlight: Auto Operating mode: Normal High and low Limits: Hysteresis: 0.4˚C Setback temperature: 0˚C AFS - Air/Floor/Sensor: 01 Internal Air Sensor FHL - Floor High Limit: 26˚C CDT2-RF...

  • Page 5: Speci Cations

    Dimensions: 91 x 91 x 26mm Internal temperature sensor: NTC 100K Backlight: White IP rating: IP20 Pollution degree: Hysteresis Adjustable from 0 to 1°C (Switching di erential) 0.1°C increments Automatic action: Setback temperature: Adjustable 0˚C to 10˚C EPH Controls Ltd.

  • Page 6: Lcd Display

    Setting target set room temp mode cyc p band RF transmission temperature Calling for heat Keypad HYS calibrate high low limit off locked Setting Calibration Displays when high O mode hysteresis mode & low temperature CDT2-RF...

  • Page 7: Buttons

    Buttons Reset button Standby button OK button Setpoint Setpoint decrease increase EPH Controls Ltd.

  • Page 8: Wiring

    Wiring External Temp Sensor Terminal Connections Neutral In Live In 2 & 3 External Temperature Sensor Note: NTC10K temperature sensor can be bought separately as an accessory. CDT2-RF...

  • Page 9: Mounting & Installation

    Before commencing installation, the thermostat must be rst ƒ disconnected from the mains. This thermostat can be mounted in the following ways: 1) Directly mounted on wall 2) To a surface mounting box EPH Controls Ltd.
  • Page 10 Wire the thermostat according to the wiring diagram on page 6. Screw the backplate onto a back box or directly to the surface. Close the front housing and tighten the screw on the bottom of the thermostat. CDT2-RF...
  • Page 11 45 113...

  • Page 12: Operating Instructions

    Mains RF Room Thermostat Operating Instructions...

  • Page 13: On / O Function

    To lock the thermostat, press and hold for 10 seconds. will appear on the screen. The buttons are now disabled. To unlock the thermostat, press and hold for 10 seconds. will disappear from the screen. The buttons are now enabled. EPH Controls Ltd.

  • Page 14: Backlight

    This menu allows the user to adjust additional functions. Press and hold together for 5 seconds to access the menu. P0 1 Connecting a CDT2-RF This function allows the user to connect a CDT2-RF to a UFH10-RF or a R_7-RF programmer. CDT2-RF...
  • Page 15 To connect a CDT2-RF to a UFH10-RF 1. On the UFH10-RF: , ‘P01 rF COn’ will appear on the screen. Press MENU ‘RF CONNECT’ will appear solid on the screen. Press Rotate to choose the zone you would like to connect to.
  • Page 16 4. On the CDT2-RF: Wait for ‘r01’ to appear. Press to con rm the thermostat is connected. *If there are multiple CDT2-RF thermostats to be connected, repeat steps 2, 3 and 4. 5. On the R_7-RF Press to return to the main screen when thermostat pairing is complete.
  • Page 17 ‘P02’ appears on the screen. Press to select. to select between: nOr (Normal mode) dS (Delay Start mode) tPi (Time Proportional Integral mode) Press to con rm the mode. Press to return to the home screen. EPH Controls Ltd.
  • Page 18 When the temperature rises above the target temperature, will disappear, and the thermostat will cancel the demand for heat. Graph (16.1): On / O Control Temp 22˚C Target Temperature 21˚C 20˚C 19˚C 18˚C 17˚C Time Minutes CDT2-RF...
  • Page 19 E.g: If the temperature is 6˚C below the thermostat target, the thermostat will call for heat immediately. If the temperature is 2˚C below the target, the thermostat will not call for heat for 32 minutes. Temperature below thermostat setting °C EPH Controls Ltd.
  • Page 20 3°C the thermostat will delay starting for circa 24 minutes. If the di erence is 6°C or more then the thermostat will be switched on immediately. The time delay will change if the temperature drops from the original calculation. CDT2-RF...
  • Page 21 CyC – Number of Heating Cycles per hour 6 Cycles This value will decide how often the thermostat will cycle the heating on and o when trying to achieve the target temperature. You can select 2, 3, 6 or 12. EPH Controls Ltd.
  • Page 22 TPI control. You can set this temperature from 1.5°C to 3.0°C in 0.1°C increments. Graph (20.1): TPI Control Temp 22˚C 21˚C Target Temperature 20˚C Proportional Bandwidth 19˚C 18˚C 17˚C Time Minutes Heating On Heating O CDT2-RF...
  • Page 23 2, 3, 6 or 12. Press to con rm. ‘P Band’ and ‘2.0’ will appear on the screen. to select from 1.5 to 3.0. Press to con rm. Press to return to normal operation. EPH Controls Ltd.
  • Page 24 ‘LOW LIMIT’ will appear on the screen, the temperature will begin to ash. to select the low limit for the thermostat. Press to con rm. Press to return to normal operation. ‘LIMIT’ will appear on the screen. CDT2-RF...

  • Page 25: P0 4 Hys - Hysteresis

    ‘HOn’ temperature, press ‘HOF’ appears on the screen. Press and the temperature will begin to ash. to select the ‘HOF’ temperature, press Press to return to normal operation. EPH Controls Ltd.

  • Page 26: P0 5 Calibrate

    ‘P01’ will appear on the screen. until ‘P05 & CALIBRATE’ appears on the screen. Press Press to select. The actual temperature will ash on the screen. to calibrate the temperature. Press to con rm the temperature. Press to return to normal operation. CDT2-RF...

  • Page 27: P0 6 Setback Mode

    0°...10°C.. Press to con rm. Press to return to normal operation. The setback temperature will be saved, and the user will be returned to the previous screen. When in Setback mode ‘LOW’ will appear on the screen. EPH Controls Ltd.

  • Page 28: P0 7 Afs - Air / Floor Sensor

    03 Internal air sensor with an external hight limit sensor. – This option allows the user to record the room temperature with the internal sensor while having the external sensor record the oor temperature to prevent overheating. (NTC10K temperature sensor required). CDT2-RF...
  • Page 29 ‘01’ will ash on the screen. to choose between options 01, 02 or 03. Press to con rm. Press to return to normal operation. Note: NTC10K temperature sensor can be bought separately as an accessory. EPH Controls Ltd.

  • Page 30: P0 8 Fhl - Floor High Limit

    ‘P01’ will appear on the screen. Press until ‘P08’ appears on the screen. Press to select. The high limit temperature will ash on the screen. to choose the desired high limit temperature. Press con rm the temperature. Press to return to normal operation. CDT2-RF...
  • Page 31 Press the reset button and release it. ‘NO’ will ash on the screen. Press ‘YES’ will ash on the screen. Press to con rm. The thermostat will restart and revert to its factory settings. EPH Controls Ltd.
  • Page 32 EPH Controls IE technical@ephcontrols.com www.ephcontrols.com/contact-us +353 21 471 8440 Cork, T12 W665 EPH Controls UK technical@ephcontrols.co.uk www.ephcontrols.co.uk/contact-us +44 1933 322 072 Harrow, HA1 1BD...

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