GVS CHTC-86/01.1.21 User Manual
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GVS CHTC-86/01.1.21 User Manual

K-bus thermostat knx/eib intelligent installation systems
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Guangzhou Video-star Electronics Industrial Co., Ltd
○
K-BUS
R
Thermostat
User manual-Ver. 1
CHTC-86/01.1.21
CHTC-86/01.1.22
CHTC-86/01.1.24
KNX/EIB Intelligent Installation Systems
www.video-star.com.cn
marketing@video-star.com.cn
Tel.： （8620）39338986
Fax.： （8620）39338465

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Summary of Contents for GVS CHTC-86/01.1.21

  • Page 1 Guangzhou Video-star Electronics Industrial Co., Ltd ○ K-BUS Thermostat User manual-Ver. 1 CHTC-86/01.1.21 CHTC-86/01.1.22 CHTC-86/01.1.24 KNX/EIB Intelligent Installation Systems www.video-star.com.cn marketing@video-star.com.cn Tel.： （8620）39338986 Fax.： （8620）39338465...

  • Page 2: Table Of Contents

    GVS K-BUS KNX/EIB Thermostat ○ Contents 1. Summary------------------------------------------------------------------------------------------------------------------------------------ 4 1.1 Product and function instruction---------------------------------------------------------------------------------------------------- 4 2. Technical Parameter, Size Structure chart and Wire Map--------------------------------------------------------------------- 5 2.1 Technical Parameter------------------------------------------------------------------------------------------------------------------- 5 2.2 Size Structure Picture----------------------------------------------------------------------------------------------------------------- 6 2.3 Button operation instruction--------------------------------------------------------------------------------------------------------- 8 3. Project design and application------------------------------------------------------------------------------------------------------- 10 3.1 Summary-------------------------------------------------------------------------------------------------------------------------------10...
  • Page 3 GVS K-BUS KNX/EIB Thermostat ○ 5. Communication Object Description------------------------------------------------------------------------------------------------ 74 5.1 "General Setting” Communication Object---------------------------------------------------------------------------------------74 5.2 "Heating/cooling control “Communication Object---------------------------------------------------------------------------- 75 5.3 "Threshold value" communication object--------------------------------------------------------------------------------------- 82 5.4 "Logic" Communication Object--------------------------------------------------------------------------------------------------- 83 5.5 "Timer Page 1/2" communication object---------------------------------------------------------------------------------------- 84 5.6 "Pushbutton Interface" Communication Object-------------------------------------------------------------------------------- 85 5.6.1 "Switch"...

  • Page 4: Summary

    GVS K-BUS KNX/EIB Thermostat ○ 1. Summary Thermostat is a device to control indoor temperature. It adjusts the room temperature and relative humidity according to the measured temperature and relative humidity, generally implemented by controlling indoor temperature controller and fan coil actuator on the bus. Thermostat closely bound up with our living environment.

  • Page 5: Technical Parameter, Size Structure Chart And Wire Map

    GVS K-BUS KNX/EIB Thermostat ○ on-off control With PI parameters self-tuning and manual tuning two kinds of control modes  Timing room temperature control switch mode and transmit data function   Manual and automatic three-speed fan control  Temperature and humidity threshold function ...

  • Page 6: Size Structure Picture

    GVS K-BUS KNX/EIB Thermostat ○ operating – 5 °C ... 45 °C Temperature range storage – 25 °C ... 55 °C transportation – 25 °C ... 70 °C Environmental conditions humidity <80%，No dewing Installation standard 86 wall-mounted installation Size 86*86*42.6mm Weight 0.3KG...
  • Page 7 GVS K-BUS KNX/EIB Thermostat ○ Figure2.2.2Thermostat coupler size picture Figure2.2.2Thermostat connect picture ①、②：KNX/EIB Auxiliary power supply ③、④：KNX/EIB BUS ⑤： NTC temperature ⑥、⑦、⑧：Three binary inputs To ensure the accuracy and stability of the measurement Thermostat, please note the following items: 1．Keep away from air conditioners, refrigerators, stoves and other areas sensitive to changes in www.video-star.com.cn...

  • Page 8: Button Operation Instruction

    GVS K-BUS KNX/EIB Thermostat ○ air temperature. 2 ． Should not be installed in direct sunlight and away from a strong vibration, electromagnetic interference are, Its location should avoid breaking the appearance and integrity of the building, installed with a outdoor weatherproof shield.
  • Page 9 GVS K-BUS KNX/EIB Thermostat ○ from left to right are the comfortable mode, standby mode, night mode and the protection mode, different modes correspond to different setting temperature .In addition, the mode key can switch heating and cooling functions. When the database is set to the heating and cooling both needed, you can long press the button to switch the heating and cooling on the "Heating/cooling...

  • Page 10: Project Design And Application

    GVS K-BUS KNX/EIB Thermostat ○ 3. Project design and application 3.1 Summary Max. number of Max. number of group Max. number of Application program communication objects addresses association addresses Thermostat Thermostat mainly send output control value to fan coil actuator through collecting temperature and setting temperature , so as to realize the effect of indoor constant temperature.
  • Page 11 GVS K-BUS KNX/EIB Thermostat ○ example, when the current control values is 50% of the largest , the valve position will open to 50% according to the control values ;If the output control values is the maximum , the valve is fully open.

  • Page 12: Threshold Function

    GVS K-BUS KNX/EIB Thermostat ○ PWM control is a relatively accurate adjustment, if you choose the appropriate cycle, the temperature overshoot will not be very big, a simple low cost common switch valve actuator can be used .It can be used to control ordinary switch valve of the fan coil , electric valve or KNX valve driver.

  • Page 13: Timing Function

    GVS K-BUS KNX/EIB Thermostat ○ and humidity and will not control it; When logic functions are banned, the logic operation from Thermostat will be disrupted as well as the control of this function. 3.8 timing function Thermostat offers 16 timing time, so users can set the timing time regularly according to their using habits, which automatically adjust the working mode and send the appropriate value.
  • Page 14 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.2“General settings “Parameter Settings interface Parameter “Send ‘In operation’ object” Options ：No Send value “0” cyclically Send value “1” cyclically These parameter set the Thermostat cycle and send a message "1" or "0" to the bus,which shows that the panel is working well.
  • Page 15 GVS K-BUS KNX/EIB Thermostat ○ This parameter is the communication object sending period for testing whether Thermostat is normal or not, and mainly being sent to the bus circularly to tell whether Thermostat is normal or not through object "in operation”.
  • Page 16 GVS K-BUS KNX/EIB Thermostat ○ If you choose "no", conduct day or night light switch through the communication objects-"Day / night mode"; If you choose "yes”, setting up automatic switching by setting the time moment. Parameter "Time for switching to night at: hour (0 ... 23) / minute (0 ... 59)"...
  • Page 17 GVS K-BUS KNX/EIB Thermostat ○ 10:30:00, 11:30:00; "1h" means sending the time to the bus per on hour point, such as 9:00:00, 10:00:00, 11:00:00. Parameters "Warning tone" Options: disable enable The parameters mainly are set in the Thermostat keys about whether to open the tone. "Disable" is not enabled tone, "enable"...

  • Page 18: Parameter Setting Interface "Measurement Settings

    GVS K-BUS KNX/EIB Thermostat ○ Options: All off Protect mode This parameter is a command need to be send when the display off. "All off" means the command of sending off the fan and coil instructions when the screen being turned off; "Protect mode" means the command of the room mode transfer to protected mode when the screen being turned off.
  • Page 19 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.3 "Measurement Settings" parameter setting interface Parameter "Temperature sensor" Options: internal sensor external sensor internal sensor and external sensor This parameter defines the type of temperature sensor. If selecting "internal sensor", the temperature measured by the temperature sensor panel, will be read or send to the bus by the “Actual temperature”, so that controller will control according to the...
  • Page 20 GVS K-BUS KNX/EIB Thermostat ○ Parameters "Weighting interior / exterior" Options: 0% / 100% 10% / 90% 100% / 0% This parameter is visible when selecting "Internal and External sensor" in the sensor type, it can set the proportion between the measured temperature of Thermostat sensor and an external sensor. For example, the option is "40% / 60%", so, the panel temperature sensor (A) occupies 40%, an external...
  • Page 21 GVS K-BUS KNX/EIB Thermostat ○ setting the monitoring time to 0, will not be monitoring the external temperature sensor . Once setting the "external sensor", if the thermostat panel does not receive the temperature send from external temperature sensor within the set monitoring time, Thermostat will consider the external sensor is faulty, will stop controlling and control sending packets of controlling stop.
  • Page 22 GVS K-BUS KNX/EIB Thermostat ○ The parameter will be visible when the parameter "Indoor and outdoor temperature" selecting "enable" ,which is used to set the time interval for the internal temperature and external temperature alternately. Parameters "Humidity correction in%" Optional: -15 ..15...

  • Page 23: Parameter Setting Interface"Heating/Cooling Setpoint

    GVS K-BUS KNX/EIB Thermostat ○ This parameter setting defines the transmission time interval of the thermostat panel cycle send to other devices in the bus through its communication objects “rel. humidity. 4.4 Parameter setting interface“Heating/Cooling setpoint” In the setting of “Temperature control system”, parameter’s setting content will be different in this page according to your choice from “Cooling”, ”Heating”...
  • Page 24 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.4.2 Parameter setting interface of “Cooling setpoint” www.video-star.com.cn marketing@video-star.com.cn Tel.： （8620）39338986 Fax.： （8620）39338465...
  • Page 25 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.4.3 Parameter setting interface of “Heating/cooling setpoint” Parameter “operation mode after reset” Options： comfort standby night Frost/heat protection Here we can set the work patterns which is after BUS DEVICE RESET or after programming.
  • Page 26 GVS K-BUS KNX/EIB Thermostat ○ Parameter “Object type for operating mode switchover” Options： 1bit 1byte This Parameter is use for giving a definition of object type when switching mode room’s temperature work patterns. When choosing 1bit”，you can find the type of Active frost/heating protection mode”,...
  • Page 27 GVS K-BUS KNX/EIB Thermostat ○ forcing switchover Window status Presence object Operating mode Work pattern switchover to be activated Comfort Standby Night Frost/heating protection Frost/heating protection Comfort Comfort Standby Night Frost/heating protection Parameter “Send setpoint” Options ： do not send...
  • Page 28 GVS K-BUS KNX/EIB Thermostat ○ Parameter “Period of sending setpoint” Options：5s … Parameter of “Send setpoint” is use for setting the interval of sending a temperature setpoint recurrently from its sensor to bus. The interval setting can be found in choosing “cyclically” or “on change and cyclically”...
  • Page 29 GVS K-BUS KNX/EIB Thermostat ○ Options： when control option changes when control value changes The parameter of “Automatic transmission heating/cooling switchover” can be found if you choose the “automate switchover by dead zone” from the “Switchover between heating and cooling”, you’ll see two options as follows.
  • Page 30 GVS K-BUS KNX/EIB Thermostat ○ Parameter of “Period of sending HVAC status” is use for setting the interval of sending HVAV to the bus recurrently through type of “Output HVAC status”. The HVAC status is updated once every 30 seconds.
  • Page 31 GVS K-BUS KNX/EIB Thermostat ○ setpoint is referred to the basic comfortable temperature setpoint of heating function. Temperature setpoint for all modes changes with the basic comfortable temperature setpoint of heating function. The setpoint can be set by bus and it will keep saving the new value after changing.
  • Page 32 GVS K-BUS KNX/EIB Thermostat ○ If the values of dead zone is 3℃, temperature setpoint of heating comfort mode is 22℃, that means the temperature setpoint of the cooling comfort mode is 25℃。 ——Parameter of “setpoint increase for standby mode at cooling in 0.1Celsius”...
  • Page 33 GVS K-BUS KNX/EIB Thermostat ○ adjustment, the setpoint of absolute adjustment does not affect the setpoint under other modes. ——Parameters "Heating standby setpoint in 0.1Celsius" Options: 0-500 Here it sets the temperature setpoint of heating function under standby mode.This temperature setpoint is set independently and is not affected by the comfort mode.

  • Page 34: Parameter Setting Interface "Heating / Cooling Control

    GVS K-BUS KNX/EIB Thermostat ○ ——Parameters "Cooling night setpoint in 0.1Celsius" Options :0-500 Here it sets the temperature setpoint of cooling function under night mode. This temperature setpoint is set independently and is not affected by the comfort mode. ——Parameter "Setpoint heat protection at cooling 0.1Celsius"...
  • Page 35 GVS K-BUS KNX/EIB Thermostat ○ actuator by Thermostat to switch on/off the electric valve and adjust the speed of fan to adjust the room temperature, making the temperature vary within the predetermined range. Figure 4.5 “Heating/cooling control” parameter setting interface Parameter “Control type”...
  • Page 36 GVS K-BUS KNX/EIB Thermostat ○ which could receive 1byte type controlling value.) If you select "Switching PI Control", the controlled object sends switch value and directly controls the output of actuator by the switch command, which means the controlled object directly switches solenoid valve.
  • Page 37 GVS K-BUS KNX/EIB Thermostat ○ Switching PI control Two position control fan coil control Parameter “control parameter of heating system” Options：Hot water heating (5K/150min) Floor heating (5K/240 min) Electric heating (4K/100min) Split unit (4K/90min) PI auto tuning User-defined parameter www.video-star.com.cn marketing@video-star.com.cn...
  • Page 38 GVS K-BUS KNX/EIB Thermostat ○ Parameter “control parameter of cooling system” Options： Cooling ceiling (5K/240min) Split unit (4K/90min) PI auto tuning User-defined parameter If the option is "PI auto tuning", you can obtain the PI parameters through auto tuning. After programming the Thermostat starts auto-tuning, makes room temperature oscillate upper and lower around temperature setpoint through fully open and fully close operations.
  • Page 39 GVS K-BUS KNX/EIB Thermostat ○ Options: 0 ... 255 In the parameter "control parameter of heating / cooling system",when the option is "user-defined parameter", this parameter is visible and is used to set parameter values of I (integral time).The integral time must be appropriately set.
  • Page 40 GVS K-BUS KNX/EIB Thermostat ○ This parameter is used to set the maximum allowable value of the PI control value. When control value calculated from PI is larger than the set maximum value, Thermostat will send the maximum value. If you use a Thermostat to control an actuator using PWM (Pulse Width Modulation) mode, this parameter is very necessary.
  • Page 41 GVS K-BUS KNX/EIB Thermostat ○ The two control type "continuous PI control" and "switching PI control" have same PI control value, but different control object. The control object of "continuous PI" sends out PI control (1byte) directly,but control object of "switching PI" outputs an "on / off" control telegram according to the duty cycle of control object.

  • Page 42: Parameter Setting Interface"Additional Heating/Cooling

    GVS K-BUS KNX/EIB Thermostat ○ 4.6 Parameter setting interface“Additional heating/cooling” Figure 4.6 “Additional Heating/cooling” parameter setting interface In the fig.4.6 these parameter settings are the same as above except the first parameter. The parameter “Setpoint between basic and additional heating/cooling in 1C” is used to set the setpoint temperature of the additional heating/cooling, if select additional heating, the setpoint of additional heating= basis comfort temperature (at heating)-value of the parameter setting;...
  • Page 43 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.7 “Fan Coil General Parameter Setting Interface Parameters "Number of fan level" Options: 1 level 2 levels 3 levels This parameter is used to set the levels of wind speed. The maximum wind speed does not exceed the levels.

  • Page 44: Parameter Window "Fan Coil Heating/Cooling

    GVS K-BUS KNX/EIB Thermostat ○ 4.8 Parameter window "Fan Coil Heating/Cooling" Parameter window "Fan Coil Heating/Cooling”, shown in Figure 4.8 Figure 4.8 Parameter window "Fan Coil Heating/Cooling" Parameter "Automatic return from manual adjustment" Options: 1- 255 This parameter sets time of "Automatic return from manual adjustment". After user manually switching the wind speed, the wind speed reaches the time to return to the automatic mode, the communication object 21 sends packets to return to automatic speed mode.

  • Page 45: Parameter Window "Threshold Value

    GVS K-BUS KNX/EIB Thermostat ○ "Threshold value in% for fan speed 3 at heating”: to set packet value that "communication object 22-Fan manual stage" outputs when the Thermostat is switched to high speed 3. Parameter "Fan speed for switching to comfort mode"...
  • Page 46 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.9 Parameter window "Threshold value" Setpoints of "threshold values": www.video-star.com.cn marketing@video-star.com.cn Tel.： （8620）39338986 Fax.： （8620）39338465...

  • Page 47: Temperature Threshold Value

    GVS K-BUS KNX/EIB Thermostat ○ 4.9.1 Temperature threshold value Figure 4.9.1 Parameter window "Temperature threshold value 1/2" Parameter "Temperature threshold value (×0.1℃)" Options: 0- 500 This parameter sets a high threshold value of temperature, this threshold value can be changed as "change temperature threshold value1 / 2", and once changing, in the bus will save the new value when...
  • Page 48 GVS K-BUS KNX/EIB Thermostat ○ "1bit/1byte output, temperature", when the detected temperature is below the low threshold or above the high threshold. If select "do not send telegram", no telegram is sent; if select "send following telegram once", the telegram is sent once; if select "send cyclically", the telegram is sent cyclically; send cyclically time can be set in the below "cycle time for temperature threshold value [min]", and at most two values can be set,...
  • Page 49 GVS K-BUS KNX/EIB Thermostat ○ Send the same telegram as upper threshold This parameter sets the action when the threshold value is banned. Select “do not send", no action; Select "Send the same telegram as lower threshold", when the object "temperature threshold value1/2 block"...

  • Page 50: Humidity Threshold Value

    GVS K-BUS KNX/EIB Thermostat ○ 4.9.2 Humidity threshold value Figure 4.9.2 Parameter window "Humidity threshold value 1/2" Parameter "Humidity threshold value (%)" Options: 0- 100 This parameter sets a high threshold value humidity, this threshold value can be changed as "change humidity threshold value1 / 2", and once changing, in the bus will save the new value when the...
  • Page 51 GVS K-BUS KNX/EIB Thermostat ○ Send following telegram cyclically These two parameters are used to respectively set ways of sending telegram to the object "1bit/1byte output, humidity", when the detected humidity is below the low threshold or above the high threshold.
  • Page 52 GVS K-BUS KNX/EIB Thermostat ○ When select "yes", the following parameters can be seen. Parameter "Behaviour when setting the lock" Options: Do not send telegram Send the same telegram as lower threshold Send the same telegram as upper threshold This parameter sets the action when the threshold value is banned.

  • Page 53: Parameter Window "Logic

    GVS K-BUS KNX/EIB Thermostat ○ 4.10 Parameter window "Logic" Parameter window "Logic" shows in Figure 4.10.1 Temperature controller provides two logic functions, each function has three logic inputs, each input can be freely set, telegrams may be sent by the temperature threshold (1bit), or humidity threshold (1bit), or from the bus, these telegrams can also be inverted, then participate in logic operations.
  • Page 54 GVS K-BUS KNX/EIB Thermostat ○ Parameter "The value of communication object input B after bus voltage recovery" Options: 0 This parameter sets logic values of "Input A" and "Input B", when the bus on a power-on reset. "Input A" and "Input B" logic values ​ ​ can be changed via the communication object "communication object logic Input A"...
  • Page 55 GVS K-BUS KNX/EIB Thermostat ○ Options: do not use temperature threshold value 1 temperature threshold value 1 inverted temperature threshold value 2 temperature threshold value 2 inverted humidity threshold value1 humidity threshold value1 inverted humidity threshold value 2 humidity threshold value 2 inverted...
  • Page 56 GVS K-BUS KNX/EIB Thermostat ○ Options: AND This parameter sets the logic operations results or relations of "Input 3 (6)" and "Input 1 (4)"/"Input 2 (5)", providing three kinds of logic operations relations: “AND", “OR", "XOR". Parameter "if logic result=‘0/1'"...

  • Page 57: Parameter Window "Timer Page 1" And "Timer Page 2

    GVS K-BUS KNX/EIB Thermostat ○ telegram "0", the threshold value is enabled. When select "yes", the following parameters can be seen. Parameter "Behaviour when setting the lock" Options: do not send the same as logic result =‘0’ the same as logic result=‘1’...
  • Page 58 GVS K-BUS KNX/EIB Thermostat ○ corresponding data. Figure 4.11 parameter window "Timer Page x" and "Timer Page 2" Parameter "Time x" Options: enable disable This parameter is used to activate a timing time. After the timing is enabled, timing mode switching and manually adjust the timing time can be achieved.
  • Page 59 GVS K-BUS KNX/EIB Thermostat ○ Sunday Monday- Wednesday Thursday- Friday Monday- Friday Saturday- Sunday Monday- Sunday This parameter sets the date. Users can set according to their needs. Parameter "Hour" Options: 0- 23 This parameter is used to set time in hours.

  • Page 60: Parameter Window "Pushbutton Interface

    GVS K-BUS KNX/EIB Thermostat ○ This parameter sets the data type thermostat panel sent to the bus when the set timing time reaches. Options "Output value" Options: 0..1/0..3/0..15/0..255/-32768…32767/0..65535/0..4294967295 This parameter sets the data value that is sent to the bus.

  • Page 61: Switch

    GVS K-BUS KNX/EIB Thermostat ○ Parameter "Limit number of Tele." Options: yes This parameter sets limits on the number of binary input telegrams sent to the main bus, in order to reduce the burden of bus. If selecting "Yes", the parameter "Max. Number Tele. Within a period" is visible.
  • Page 62 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.12.2 parameter window "switch" Parameter "Reaction on closing the contact（rising edge）switch 1/2" Parameter "Reaction on opening the contact (falling edge) switch 1/2" Options: No function toggle Here is to set the switch value that the object "Switch, X” sent when performing the operation.

  • Page 63: Switch/Dimming

    GVS K-BUS KNX/EIB Thermostat ○ restored, but only when the parameter "Reaction on closing the contact(rising edge)/ opening the contact(falling edge)", and all options don't select "Toggle", will it send the current switch value of "Switch, X" to the bus; if any of the options selects "Toggle", no value will be sent in the bus.
  • Page 64 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.12.3 parameter window "Switch / Dimming" Parameter "Long operation after(entry*0.1s)" Options: 3-250 This parameter defines the contact input's effective time for a long operation. If the connecting time of input contacts is longer that the set time, the operation is considered as long operation.

  • Page 65: Shutter Control

    GVS K-BUS KNX/EIB Thermostat ○ relative dimming, brighten or darken, the input is disconnected and stop dimming. If select "brighter /darker", the contact input is long operation, both the brighter and darker can be performed, but at first is brighter, then the later operation is the inverse of the former operation.
  • Page 66 GVS K-BUS KNX/EIB Thermostat ○ Figure 4.12.4. After enabling this function, user can control the shutter through one or two input operations. Figure 4.12.4 parameter window "Shutter control" Parameter "Long operation after(Entry*0.1s)" Options: 3-250 This parameter defines the contact input's effective time for a long operation. If the connecting time of input contacts is longer that the set time, the operation is considered as long operation.

  • Page 67: Scene

    GVS K-BUS KNX/EIB Thermostat ○ 1BYTE If this parameter is visible when "function switchover blinds/roller shutter" selects "shutter", and is used to set the object types of "Output shutter UP/DOWN" and "Output Stop/lamella adj". Parameter “Cyclical transmission tele. repetition (Entry*0.1s)"...
  • Page 68 GVS K-BUS KNX/EIB Thermostat ○ Scene" Figure 4.12.5 parameter window " Parameter "Number of scene" Options: 1-64 Here "Number of scene" can be set, and its range: 1~64; when the switch is operated, via 1 byte communication object "Input x ， scene" send telegram value. The setting scene number 1-64 corresponding to the telegram value 0-63.

  • Page 69: External Temperature Sensor For Rtc

    GVS K-BUS KNX/EIB Thermostat ○ 4.12.5 External temperature sensor for RTC Parameter window "Input 4" is seen as Figure 4.12.6, Temperature sensor inputs can be connected an external NTC thermistor, as an external temperature sensor of thermostat panel, or as a temperature limiter of underfloor heating, to stop heating when the heating temperature is higher than the limit.
  • Page 70 GVS K-BUS KNX/EIB Thermostat ○ … 200K This parameter sets the resistance value of the external temperature sensor thermistor. Parameter "B value of external temperature sensor" Options: 3275 3380 … 4200 This parameter sets the B value of the external temperature sensor thermistor. When a temperature sensor input is used as underfloor heating temperature limiter, you need to connect an NTC thermistor and put the thermistor into the floor inside.

  • Page 71: Parameter Window "Air Condition

    GVS K-BUS KNX/EIB Thermostat ○ heating", the thermistor temperature of temperature sensor is lower than the limit temperature, the basic heating restarts. Additional heating has a similar situation. Note that the temperature limiter's influence on the set temperature, the heating temperature will not reach the set temperature higher than the limit.
  • Page 72 GVS K-BUS KNX/EIB Thermostat ○ control. Parameter "Send setpoint" Options: Do not send on change cyclically on change and cyclically This option is set to send the way of the set temperature; "do not send" means do not send commands, "on change" means that there is a change on the sending, "cyclically" means cyclically Send, "on change and cyclically"...
  • Page 73 GVS K-BUS KNX/EIB Thermostat ○ "Object type for controlling air condition" is selected “1byte”, it is visible. Parameter "Command for heating mode" Parameter "Command for air cooling mode" Options: 1- 64 These two parameters are to set the command value of switching between heating and cooling mode.

  • Page 74: Communication Object Description

    GVS K-BUS KNX/EIB Thermostat ○ Auto off time Parameter "Hour" Options: 0-23 Parameter "Minute" Options: 0-59 This parameter is to set the OFF time of air conditioner. Long Press the timer button to modify the timing value, and its timing number is 2.

  • Page 75: Heating/Cooling Control "Communication Object

    GVS K-BUS KNX/EIB Thermostat ○ This communication object is used to receive telegram value from the bus to switch the backlight brightness of backlit screen. Received telegram values: 1——the backlight brightness of backlit screen in daytime 0——the backlight brightness of backlit screen at night.
  • Page 76 GVS K-BUS KNX/EIB Thermostat ○ by multiple sensors, or temperature by external sensor. rel. humidity Humidity 2 byte C, R, T 9.007 DPT_Value_Humidity The communication object is used to send the current humidity that is detected by the thermostat panel sensor, to the bus;...
  • Page 77 GVS K-BUS KNX/EIB Thermostat ○ The communication object is visible when the object type of operating mode is "1bit", and is used to activate standby mode. Receiving telegram "1"will activate standby mode; receiving telegram "0" will not activate standby mode.
  • Page 78 GVS K-BUS KNX/EIB Thermostat ○ The communication object is for heating/cooling switchover. Receiving telegram "1"will activate heating; receiving telegram "0" will activate cooling. Receiving telegram "1"----- heating Receiving telegram "0" ----- cooling Basic comfort temperature (at Setpoint 2byte C, R, W 9.001 DPT_Value_Temp...
  • Page 79 GVS K-BUS KNX/EIB Thermostat ○ Bit0: flag of enabling comfort mode 1---enable 0----disable Bit1: flag of enabling standby mode 1---enable 0----disable Bit2: flag of enabling night mode 1---enable 0----disable Bit3: flag of enabling frost / heat protection mode 1---enable 0----disable...
  • Page 80 GVS K-BUS KNX/EIB Thermostat ○ Send telegrams（fan coil control） ：0…100% fan automatic or fan manual 1 bit C, R, T 1.001 DPT_Switch This communication object is used to switch over fan between auto and manual. when parameter "Switchover fan between auto and manual" selects "object 'Automatic ON/OFF'", Send the telegram "1"...
  • Page 81 GVS K-BUS KNX/EIB Thermostat ○ Note: Stop control telegrams is not restricted by the minimum and maximum control value, if the control values ​ ​ are negated, stop control telegrams are negated, too. Outdoor temperature Setpoint 2byte C, R, W 9.001 DPT_Value_Temp...

  • Page 82: Threshold Value" Communication Object

    GVS K-BUS KNX/EIB Thermostat ○ This communication object would display when parameter ”Setpoint adjustment” Selects “absolute adjustment”, it is used to modify the heat protection mode temperature at cooling 5.3 "Threshold value" communication object Figure 5.3 Threshold value communication object...

  • Page 83: Logic" Communication Object

    GVS K-BUS KNX/EIB Thermostat ○ 35/39 Change humidity threshold Humidity threshold value 1/2 2byte C, R,W 9.007 value 1/2 DPT_Value_Humidity This communication object is used to change the humidity's high threshold value; telegram range: 0…100% 36/40 1 bit output humidity...

  • Page 84: Timer Page 1/2" Communication Object

    GVS K-BUS KNX/EIB Thermostat ○ When the logical result is 1 or 0, 1bit telegram is sent e through this object; the telegram is set by parameter "1bit telegram value". 46/49 Logic 1/2, 1 byte output Logic 1/2 1byte C, R,T 5.010 DPT_Value_1_Ucount...

  • Page 85: Pushbutton Interface" Communication Object

    GVS K-BUS KNX/EIB Thermostat ○ Disable room Timer 1bit 1.001 DPT_Switch temperature timer This communication object is used to disable or enable the Timer function. Receive telegram "1" - disable the timer function Receive telegram "0" - enable the timer function 92/../107...

  • Page 86: Dimming" Communication Object

    GVS K-BUS KNX/EIB Thermostat ○ When CH A "Switch" is enabled, this communication object is visible, through long push, according to the parameters settings, performs the corresponding actions, e.g. ON, OFF, TOGGLE, etc. When the telegram is "1"--- ON; When the telegram is "0"--- OFF.

  • Page 87: Scene" Communication Object

    GVS K-BUS KNX/EIB Thermostat ○ 53/56/59 Output shutter UP/DOWN CH A/B/C Blind 1bit/1byte C, T 1.008 DPT_UpDown 5.001 DPT_Scaling The communication object, by sending commands to the bus, moves up / down curtains. The communication object can send 1bit or 1bytecommands, by "Function of switchover blinds / roller shutter" choose curtain type, by "Object type"...

  • Page 88: Temperature Limiter (Underfloor Heating)" Communication Object

    GVS K-BUS KNX/EIB Thermostat ○ This object sends a scene number by operating the switch, short press to call the scene, and long press to save the current scene. The "scene number" is set in parameter "Number of scene". Set an 8bit instruction(binary coded)：FXNNNNNN F: “0 "-- call the scene;"...
  • Page 89 GVS K-BUS KNX/EIB Thermostat ○ Figure 5.7 air condition communication object Number Communication object name Functions Data types Flags IR command number Temperature control 1byte C, T 17.001 DPT_SceneNumber In the first parameter "Control device" selects “air condition", and selecting "1byte" in "Object type for controlling air condition”, this communication object can be seen.

This manual is also suitable for:

Chtc-86/01.1.24Chtc-86/01.1.22

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