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Adjustable Sequences for Cooling

The controller can be set for one of two different sequences for cooling:
• 

Air – Water with temperature - and carbon dioxide control

• 

Water – Air with temperature - and carbon dioxide control

Air – Water with temperature - and carbon dioxide 
control

Temperature/CO

2

26

°

C

1000 PPM

24

°

C

800 PPM

22

°

C

600 PPM

Time 
period

Water

CO

2

Temperature

Air 2

Air 1

Occupancy

No 
occupancy

20%

50%

100%

Flow %

Figure 7.  Typical diagram dealing with the air-to-water sequence with temperature control.  

Note! Air 2 is valid only for W4.2 

The sequence involves the following: If occupancy is registered in the room 
and if the temperature is at a certain level, the system starts a cooling 
process that cools down the room by increasing the airflow.  

If the temperature rises more and the increased airflow is not sufficient for 
maintaining the required temperature, the cooling process is supplemented 
with cooling by circulating chilled water in the water pipes.

If the level of carbon dioxide in the room exceeds a certain level, the air 
system is activated in order to reduce the level and keep it constant. 

13

20210201                         Swegon reserves the right to make design changes.

CONDUCTOR 

W4

Summary of Contents for 20210201

Page 1: ...CONDUCTOR W4 Technical Manual sw 1 48 20210201...

Page 2: ......

Page 3: ...Units W4 2 29 Step 2 To Connect the Units W4 1 31 Step 3 Commissioning 33 Step 4 To Install the Room Unit thermostat 35 The Menus of the Room Unit thermostat 37 The Main Image and the Key Pad of the R...

Page 4: ...CONDUCTOR W4 4 Swegon reserves the right to make design changes 20210201...

Page 5: ...design changes Swegon reserves the right to change the specifications in the manual and change the design of the product without notice Safety precautions Responsibility It is the responsibility of th...

Page 6: ...CONDUCTOR W4 6 Swegon reserves the right to make design changes 20210201...

Page 7: ...4 1 especially adapted for partitioned offices and hotel rooms Controller and Room Unit thermostat The main components in the CONDUCTOR W4 control system are a controller and a room unit thermostat Co...

Page 8: ...ts the actuator opening time accordingly It is possible to switch over from PWM control to 0 10 V control if needed The user can easily configure the controller functions and parameters by means of th...

Page 9: ...mmunicate with the controller and to serve as a tool for adjusting the climate in the room The internal communication between the controller and the room unit is wireless which makes it easier to find...

Page 10: ...sure sensor supply air BP2 EA SYST PS Pressure sensor exhaust air BP3 SA2 SYST PS Pressure sensor supply air 2 BO1 DETECT Occupancy Presence detector BQ1 DETECT Quality CO2 sensor 2 10 V SA1 D1 CRTc a...

Page 11: ...unit BH1 Condensation sensor BP1 SA SYST PS Pressure sensor supply air BP2 EA SYST PS Pressure sensor exhaust air BO1 DETECT Occupancy Presence detector BQ1 DETECT Quality CO2 sensor 2 10 V SA1 D1 CRT...

Page 12: ...CONDUCTOR RE W4 1 Controller BT1 P1 CONDUCTOR RU Room unit BH1 Condensation sensor BP1 SA SYST PS Pressure sensor supply air BO1 DETECT Occupancy Presence detector SA1 D1 CRTc aaa 2 Supply air damper...

Page 13: ...ture control Note Air 2 is valid only for W4 2 The sequence involves the following If occupancy is registered in the room and if the temperature is at a certain level the system starts a cooling proce...

Page 14: ...erature the cooling process is supplemented by increasing the airflow If the level of carbon dioxide in the room exceeds a certain level the airflow is increased in order to reduce the level and keep...

Page 15: ...e most recent change manually entered on the room unit When the controller is set to the automatic mode the valve actuators for chilled water and hot water respectively and the supply air damper and e...

Page 16: ...y mode The RE then operates in the Boost mode The time is set with one parameter factory preset to 5 min Stand by mode When the control system registers a signal indicating that a window is open the c...

Page 17: ...means that the water valves are open when the system is installed which makes it easier to fill pressure test and vent the water system The function will be automatically disabled after the actuator...

Page 18: ...The whole coil is then utilized for heating or cooling with one and the same circuit in contrast to a traditional cooling heating solution in which heated water and chilled water are conveyed in sepa...

Page 19: ...both in the normal mode and in the BMS mode This function interacts with the controller s internal occupancy switching and if any of these signals are activated the controller will switch over to the...

Page 20: ...below 95 and no signal is then fed out to the output W4 1 and normal cooling heating operation Heating step 1 on the normal heating output and heating step 2 on the internal relay W4 1 and change ove...

Page 21: ...order to provide satisfactory ventilation in the room Using a so called Offset value the controller carries out a calculation in order to achieve the required pressure in the room Pressure SA1 SA2 Off...

Page 22: ...C Occupancy heating 21 C No occupancy cooling 24 C No occupancy heating 20 C Inputs Condensation sensor Resistance Temperature sensor Resistance Presence detector No occupancy NO NC optional default N...

Page 23: ...be exposed to direct sunlight In operation LED temperature Cooling load Heating load In operation LED air Low airflow One LED lit Normal airflow Two LEDs lit High airflow Three LEDs lit In operation...

Page 24: ...CONDUCTOR W4 24 Swegon reserves the right to make design changes 20210201...

Page 25: ...aaa 100 or 125 Condensation sensor Carbon dioxide sensor DETECT Qyality Presence detector DETECT Occupancy Pressure sensor ModBus sensor SYST PS Modular cable SYST KABEL RJ12 6 LED L Xm Transformer S...

Page 26: ...ems contractor The electrical contractor or the systems contractor provides a 230 V earthed outlet for transformer a fitted junction box for the room unit thermostat and possible external cables Prepa...

Page 27: ...1 Plastic hooks Pos 2 Supporting surface for example a comfort module or climate beam Pos 3 DIN rail Pos 4 Snap on fastener 1 Fasten the two plastic hooks on the backside of the controller on the uppe...

Page 28: ...n the comfort module or climate beam 2 1 Figure 2 To mount the controller Pos 1 Supporting surface NOT for the comfort module or climate beam Pos 2 Screws 1 Secure the controller by means of screws in...

Page 29: ...1 Valve actuator for cooling water Pos 2 Presence detector Pos 3 Window contact Pos 4 Pressure sensor Pos 5 Carbon dioxide sensor Pos 6 Condensation sensor Pos 7 Temperature sensor Pos 8 Transformer P...

Page 30: ...t the wires of the temperature sensor to wiring terminals 19 and 20 respectively 8 Connect the secondary side cables of the transformer to wiring terminals 23 G and 24 GO respectively 9 Connect the va...

Page 31: ...el Office Pos 1 Valve actuator for cooling water Pos 2 Valve actuator for heating water Pos 3 Presence detector Pos 4 Window contact Pos 5 Pressure sensor Pos 6 Carbon dioxide sensor Pos 7 Condensatio...

Page 32: ...ively NOTE May vary depending on the type of condensation sensor 7 Connect the wires of the temperature sensor to wiring terminals 19 and 20 respectively 8 Connect the secondary side cables of the tra...

Page 33: ...ed via a controller the cable must be connected at this point 2 3 1 Figure 5 To insert batteries in the room unit thermostat Pos 1 To open the snap on fastener Pos 2 Remove the back piece Pos 3 To ins...

Page 34: ...Room unit menus Check the factory settings 5 Make sure that the current application setting is in agreement with units connected to the controller Check in accordance with instructions in the section...

Page 35: ...2 Figure 7 To mount the room unit thermostat Pos 1 Front piece Pos 2 Back piece Pos 3 Screws suitable for the supporting surface 1 Select a suitable location in the room for installing the room unit T...

Page 36: ...CONDUCTOR W4 36 Swegon reserves the right to make design changes 20210201...

Page 37: ...on dioxide content Pos 9 Occupancy status Pos 10 Cursor key for moving UP Pos 11 Cursor key for moving to the RIGHT Pos 12 OK key Heating Cooling The field shows whether the climate system is heating...

Page 38: ...onomy STOP Standby EMERG Emergency Current temperature The field shows the current temperature setting The temperature is specified in C Level of carbon dioxide The symbol is shown in the field when t...

Page 39: ...Min 0 Max 2 1 P_1902 1 or 2 room units values Alarms Enter code Regulator adjust K factor SA1 Norm SA1 l s Boost SA1 l s K factor SA2 Boost SA2 l s K factor EA Offset l s Temp C Temp H Flow SA1 l s F...

Page 40: ...it Select Press code Exit 9 1 9 1 Figure 3 The image for selecting Service menu and to enter the code 1 Go to the Main menu 2 Highlight Service menu 3 Press OK or on the Right key 4 Enter the first di...

Page 41: ...seconds to confirm the setting To set the desired airflow Figure 5 Main image 1 Check that the main image is shown in the display 2 Press on The Right key to increase the airflow The Left key to decre...

Page 42: ...ight the Regulator adjustment settings 3 Press OK or on the Right key 4 Highlight the line of the value you want to change by pressing the UP key or the DOWN key 5 Press OK to highlight the value 6 To...

Page 43: ...the Service menu 2 Highlight the Regulator adjustment settings 3 Press OK or on the Right key 4 Press the Right key twice for showing the image for setting the air damper for extract air and offset 5...

Page 44: ...o highlight and to be able to change the cut in temperature 7 Change the cut in temperature by pressing the UP or DOWN key 8 Press OK to confirm the change 9 Press the Left key four times to return to...

Page 45: ...nit is connected via cable to the controller 1 Go to the Service menu 2 Highlight Settings 3 Press OK or on the Right key 4 Highlight the id number of the Room unit 5 Press OK 6 Make one of the follow...

Page 46: ...rvice menu 2 Highlight Settings 3 Press OK or on the Right key 4 Mark Connect units 5 Press OK or on the Right key 6 Enter the first digit in the RF ID number by pressing the UP key or DOWN key 7 High...

Page 47: ...s OK or on the Right key 4 Highlight RF pair up 5 Press OK or on the Right key 6 Start the test by the Right key During the test 100 messages are sent between the controller and the room unit The room...

Page 48: ...Return to the Service menu by pressing the Left key To enable disable the first open function Language Exit Select FirstTime func Temp calibration FirstTime func Exit Off Figure 14 Image for selecting...

Page 49: ...o the Settings menu 8 Return to the Service menu by pressing the Left key Energy saving function to save battery Temp calibration Exit Select Energy saving Backlight Energysaving1 2 Exit Figure 16 Ima...

Page 50: ...enu by pressing the Left key Basescreen mode for selecting analogue or digital temperature display Backlight Exit Select Basescreen mode Set point step Basescreen mode Exit Figure 18 Image for selecti...

Page 51: ...and return to the Settings menu 8 Return to the Service menu by pressing the Left key 0 5 C Commissioning Commissioning Exit Water AIR Commissioning Exit Cool valve Heating valve Backlight Exit Bases...

Page 52: ...y 8 Press OK to confirm the new value 9 Press the Left key to exit the parameter change image 10 Highlight Yes to save the changes you ve made No to not to save the changes Cancel to return to paramet...

Page 53: ...e for selecting Show Alarms and the Alarm image 1 Go to the Service menu 2 Highlight Alarms 3 Press OK or on the Right key All active alarms are shown in the image 4 Return to the Service menu by pres...

Page 54: ...CONDUCTOR W4 54 Swegon reserves the right to make design changes 20210201...

Page 55: ...tions Display image Description P_101 set 2 ID Modbus Address min 1 max 247 Indicates the ModBus address P_102 set 3 BMS Baudrate 9 6 19 2 38 4 min 1 max 3 Indicates the transmission speed for connect...

Page 56: ...sure has not been reached The alarm is deactivated when the time delay 0 P_113 30 min Warning delay pressure sensor min min 0 max 720 Indicates after how many minutes the system should initiate an ala...

Page 57: ...x 32 Indicates the temperature setpoint applicable to the Night cool function P_1908 Actuator Cool 1 NC 2 0 10V 3 NO 4 CCO 1 Min 1 Max 4 Cooling actuator type 1 Normally closed 2 0 10V 3 Normally open...

Page 58: ...e value for I for heating A high value denotes faster control A low value denotes slower control P_1919 P term Cooling Scale 1 100 5000 Min 1 Max 10000 Indicates the value for P for cooling A high val...

Page 59: ...f what type 0 No sensor connected 1 Analogue sensor 2 ModBus P_1930 SA2 Flow sen 0 NP 1 Active 0 Min 0 Max 1 Indicates whether the pressure sensor in supply air duct 2 is connected 0 No sensor connect...

Page 60: ...actuator on a 0 output signal from the controller Resolution 50 mV P_1943 SA2 mV at 100 output 10000 mV Min 5000 Max 10000 Indicates the Volt signal transmitted to the actuator on a 100 output signal...

Page 61: ...n 1 Max 10000 Indicates the value for I in the extract air duct A high value denotes faster control A low value denotes slower control P_1955 SA1 calc type 1 Ana 2 MB 2 Min 1 Max 2 Indicates how the c...

Page 62: ...rs hotel office or VAV 1 W4 2 Conference room 2 W4 1 Hotel 3 VAV P_1965 ActuatorHeat 1 NC 2 0 10V 3 NO 30 31 32 X 12 1 Min 1 Max 3 W4 1 function for actuator heat 1 Normally closed 2 0 10V 3 Normally...

Page 63: ...y 4 Airflow Holiday P_1977 Commissioning Water 0 Min 0 Max 2 Choice of commissioning mode Water 0 Off 1 Cooling valve fully open 2 Heating valve fully open P_1978 Cold draught protection 0 OFF 0 Min 0...

Page 64: ...nd DIP 2 to On 4 Orange flashing for 1 second None On Off Service position All MB ports are slaves 38400n1 Room unit does not operate in the service mode 5 Off On BMS mode The mode is automatically ac...

Page 65: ...or Flow sensor is missing or is defectiveive Alarm is initiated after given time P_113 Install or replace the sensor Auto 5 No exhaust flow sensor Flow sensor is missing or is defectiveive Alarm is in...

Page 66: ...with new parameter file Man 29 No application Parameter file is incorrect Update with new parameter file Man 30 No parameters Parameter file is incorrect Update with new parameter file Man 31 Paramet...

Page 67: ...it 2 0 1 ALARM resets automatically 1x0009 No Pressure sensor 0 1 ALARM resets automatically 1x0010 No Supply Flow sensor 0 1 ALARM resets automatically 1x0011 No Exhaust Flow sensor 0 1 ALARM resets...

Page 68: ...es HW reset 1x0039 Parameter file size 0 1 ALARM requires HW reset 1x0040 Wrong parameter file 0 1 ALARM requires HW reset 1x0041 Check Duct Group SM 0 1 ALARM resets after right parameters 1x0042 Che...

Page 69: ...Not used 4x0014 System type 1 5 1 Heat 2 Cool 3 Change Over 4 Heat Cool 5 Heating with radiator 4 4x0015 Number of Room units 0 2 0 external temperature 1 One room unit 2 Two room units 1 4x0016 Wind...

Page 70: ...ale 1 100 5 4x0052 P term Change over 1 10000 Scale 1 100 5000 4x0053 I term Change over 1 10000 Scale 1 100 5 4x0054 SA 0 value 0 5000 0 4x0055 SA 100 value 5000 10000 10000 4x0056 EA 0 value 0 5000...

Page 71: ...ed 3x0028 Temp sensor regulator Cels Scaling 1 10 external tempsensor connected to 19 20 3x0029 Temp sensor RU1 Cels Scaling 1 10 3x0030 Temp sensor RU2 Cels Scaling 1 10 3x0031 Temp set point RU Setp...

Page 72: ...59 Airflow EA l s 3x0060 Room temp to controller degC if 2 RU the average temperature of these 3x0061 Change over temp degC 3x0062 CO2 in room ppm 3x0063 Copy of Input Status 1 16 0 65535 Bit0 0x0001...

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