JUNG CD 2178 WW Room temperature Thermostat
Safety instructions
- Electrical equipment must be installed and fitted by qualified electricians only.
- Failure to observe the instructions may cause damage to the device and result in fire or other hazards.
- These operating instructions are part of the product and must be left with the final customer.
Device layout
- Presence button
- Adjusting wheel
- Status LED
Function
System information
- This device is a product of the KNX system and complies with KNX directives. Detailed technical knowledge obtained in KNX training courses is a prerequisite to proper understanding.
- The functionality of this device depends on the software. Detailed information on software versions and attainable functionality as well as the software itself can be obtained from the manufacturer‘s product database.
- Planning, installation and commissioning of the unit is effected by means of KNX-certified software. The full functionality with KNX commissioning software is available from version ETS3.0d onwards.
- The product database, technical descriptions, conversion programs and other utilities are always available in their latest versions in the Internet under www.jung.de.
Designated use
- Single-room temperature regulation in KNX installations.
- Flush-mounted installation in hollow or in solid walls.
Product features
- Measurement of the room temperature and comparison with the temperature reference value)
- Reference value preset by selecting the mode of operation
- Operating modes ‚comfort‘, ‚standby‘, ‚night-time‘,frost/heat protection‘
- Heating and cooling
- Heating and cooling at basic and backup levels
- Adjusting wheel zur Sollwert-Korrektur
- Presence button
- Status LED
Operation
Operating modes and status LED
The regulator compares the actual room temperature to the preset reference temperature and adjusts heating and cooling installations in accordance with the respective energy requirements. The temperature reference value depends on the respective operating mode and can be varied with the adjusting wheel (Fig. 1, 2). The operating modes and the current regulator status are indicated by means of status LEDs (Fig. 1, 3)
Comfort mode
Standby mode
Night-time mode
Frost/heat protection mode
Comfort prolongation mode(night)
Comfort prolongation mode (frost/heat protection)
Heating/cooling active indicator
Heating mode indicator
Cooling mode indicator
Controller locked indicator (dew-point mode)
Setting the mode of operation
- Control elements for setting the operating mode are installed, e.g. touch sensors, control panels, etc.
- Activate the desired mode of operation with the corresponding control element.
- The new operating mode is indicated by means of status LEDs (Fig. 1, 3).
- The reference temperature for the room is set in accordance with the selected operating mode.
Changing the room temperature
- To increase the reference temperature: turn the adjusting wheel clockwise.
- To lower the reference temperature: turn the adjusting wheel counter-clockwise.
Activating the comfort prolongation
It is desired to prolong the comfort mode for a certain time beyond the preset automatic switch-over of the operating mode. This can be ensured by comfort prolongation. The time for which the comfort prolongation mode can be prolonged is limited.
Komfortverlängerung aktivieren
- The regulator is in the night-time mode or in the frost/ heat protection mode.
- Press the presence button
- The LEDs
are lit up. - The reference temperature of the comfort mode is now active for the pre-programmed time.
- After the end of the programmed time span, the originally set night-time or frost/heat protection mode is resumed
Information for qualified electricians
- Electric shock in case of accidental contact with live parts. Electric shocks may be fatal.
- Before working on the device, disconnect the supply voltage and cover up live parts in the working environment.
Fitting and electrical connection
- The device is composed of a terminal insert with supporting ring and electronic attachment module
- Do not use the regulator together with other electrical devices in the same combination since the heat produced by these devices may influence the temperature measurement of the regulator.
- Do not use the regulator in the vicinity of heat sources such as electric ranges, refrigerators, draughts of air or insolation to avoid wrong temperature measurements.
- The optimal fitting height is about 1.5 m.
- Install the device in a flush-mounting box as per DIN 49073 or in a surface-mounting box.
- Recommendation: Use the deep type of box.
- Detach the electronic attachment module from the terminal insert
- Connect the bus line to the terminal insert using the connecting terminals
- Install the terminal insert (Fig. 2, 4) in the flush-mounting box. Pay attention to the lettering OBEN / TOP.The bus connection must be at the bottom.
- Place the design frame on the terminal insert
- Install the electronic attachment module in the correct position on the terminal insert.
- Withdraw the adjusting wheel
- Fix the electronic attachment module with the safety screw
- Put the adjusting wheel back in place on the module.
Commissioning
- Physical address and application software
- Use the commissioning software from ETS2 version 1.2 onwards..
- Withdraw the adjusting wheel
- Press the programming button
- The programming LED is illuminated.
- Assign the physical address.
- The programming LED is off.
- Note the physical address on the terminal insert and on the back of the electronic attachment module. To do so, perform the installation steps in reverse order.
Annex
Technical data
- KNX medium TP1
- Commissioning mode S mode
- KNX supply 21…32 V DC.
- KNX current rating max 10 mA
- KNX connection connecting terminal
- Ambient temperature: 5 °C …+45 °C
- Storage temperature – 25 °C …+70 °C
Guarantee
We accept the guarantee in accordance with the corresponding legal provisions. Please return the unit postage paid to our central service department giving a brief description of the fault:
- ALBRECHT JUNG GMBH & CO. KG
- Service-Center
- Kupferstr. 17-19
- D- 44532 Lünen
- Service-Line: +(49) 23 55 . 80 65 51
- Telefax: +(49) 23 55 . 80 61 89
- E-Mail: [email protected]
General equipment
- Service-Line: +(49) 23 55 . 80 65 55
- Telefax: +(49) 23 55 . 80 62 55
- E-Mail:[email protected]
KNX equipment
- Service-Line: +(49) 23 55 . 80 65 56
- Telefax: +(49) 23 55 . 80 62 55
- E-Mail:[email protected]
Reference
Download manual:
JUNG CD 2178 WW Room temperature Thermostat Operating Instruction
JUNG CD 2178 WW Room temperature Thermostat Operating Instruction