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STRA-07 Room Controller. Installation and maintenance manual.

Fläkt Woods

8713 GB 2014.04

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Specifications are subject of alteration without further notice.

Content STRA-07 for Fancoils

Installation preparations................................2
Controller/Display handling.........................5
Technical data..................................................5
Installation.......................................................6
Configuration..................................................6
Operating modes............................................7
Activation operating modes.........................7
Control states..................................................8
Actuators.........................................................9
Fan control.......................................................9
Forced ventilation/Condensation detector/
Frost protection..............................................10
Parameter settings.........................................10

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Summary of Contents for STRA-07 R

Page 1: ... without further notice Content STRA 07 for Fancoils Installation preparations 2 Controller Display handling 5 Technical data 5 Installation 6 Configuration 6 Operating modes 7 Activation operating modes 7 Control states 8 Actuators 9 Fan control 9 Forced ventilation Condensation detector Frost protection 10 Parameter settings 10 ...

Page 2: ...ation without further notice STRA 07 for Fancoils Installation instruction Ensure that the installation complies with local safety regulations Information about commissioning of the product can be found in the manual STRA Manual which is available for download from www flaktwoods com 1 2 3 alt 4 5 Dimensions Dimensions in mm ...

Page 3: ...communication loop must use the same transformer pole for G terminal 10 and G0 terminal 11 On the communication loop the A terminal terminal 42 should only be connected to another A terminal and the B terminal terminal 43 to another B terminal Otherwise there is great danger of short circuit with damaged components as a result Inputs AI PT1000 sensor 0 50 C accuracy 0 1 C UI AI PT1000 sensor 0 100...

Page 4: ...enu and change parameter 20 to thermal actuator 24 UO2 Control output heating or cooling FS For 0 10 V DC valve actuator max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 24 and its supply terminals to terminals 10 and 11 Make sure that the reference pole G0 is connected to the correct terminal on the actuator alternative For 24 V AC thermal actuator max 2 0 ...

Page 5: ...l STRA 07 for Fancoils Fläkt Woods 8713 GB 2014 04 5 Specifications are subject of alteration without further notice Plug in of relay box STRZ 14 to fan coil unit QFDK mounted in ceiling Plug in of condensation detector Plug in of relay box STRZ 14 to STRA 07 ...

Page 6: ...ses the current setpoint by 0 5 C with each press up to the max limit FS 3 C Pressing on DECREASE decreases the current setpoint by 0 5 C with each press down to the min limit FS 3 C Switching between heating and cooling setpoints is done automatically in the controller depending on the heating and cooling requirement Fan control Fan control STRA 07 has a fan button When you press the button a sym...

Page 7: ... CENELEC EN 61000 6 1 and EN 61000 6 3 and the requirements of European LVD standard IEC 60 730 1 It carries the CE mark Inputs External room sensor PT1000 sensor 0 50 C Suitable sensor is Fläkt Woods STRZ 05 Occupancy detector Closing potential free contact Suitable occupancy detector is Fläkt Woods STRZ 09 Condensation detector alt window contact Fläkt Woods condensation detector STRZ 16 alt win...

Page 8: ...n 19 C and 27 C The setpoints can also be adjusted 3 C via the display Display the background lighting is lit dimmed STANDBY and the current room temperature or setpoint depending on the configuration are shown in the display Occupied Operating mode Occupied means that the room is in use and is therefore in a comfort mode The controller regulates the room temperature around a heating setpoint and ...

Page 9: ...r cooling via the change over function Heating Heating Heating Cooling Heating Cooling with VAV control and forced supply air function Heating Cooling with VAV control Cooling Cooling Cooling For the control states UO1 is used for the left control function and UO2 is used for the right control function For control states where only one control function is active Heating Heating or cooling via the ...

Page 10: ...two types of actuators Analogue 0 10 V actuators Thermal actuators The actuator type is set via the parameter menu in the display Analogue actuators The following output signals can be set for analogue actuators 0 10 V FS 2 10 V 10 2 V 10 0 V Thermal actuators When thermal actuator control has been selected this is controlled digitally with time proportional pulses via output UO By pulsing the ope...

Page 11: ...osition with high speed Manual setting of speed I III means that the speed of the fan in operating modes Stand by Occupied and Bypass is always the set speed In the other operating modes the fan is demand controlled Auto control In auto mode you can configure if the fan should be controlled by the heating output the cooling output or both the heating and cooling outputs When the selected output ex...

Page 12: ...heating and cooling outputs are set to 0 V and the frost protection function is activated Frost protection STRA has built in frost protection which is activated when the controller is not in use The frost protection prevents the temperature from dropping below 8 C Return to normal fan speed and control occurs automatically when the room temperature exceeds 8 C Parameter Settings STRA 07 is deliver...

Page 13: ...ndby Neutral Zone C 3 4 Unoccupied Heating Setpoint C 15 5 Unoccupied Cooling Setpoint C 30 6 Frost protection Setpoint C 8 7 P Band C 10 8 I Time sec 300 9 Cooling Changeover difference temperature Room and media C 3 10 Heating Changeover difference temperature Room and media C 4 11 Heating Cooling Functions 0 Heat 1 Heat Heat 2 Heat or Cool via changeover 3 Heat Cool 4 Heat Cool with VAV and for...

Page 14: ... hours 23 37 Cooling Valve Periodic Exercise Interval 0 inactive hours 23 38 Hysteresis for the heating thermostat function C 2 39 Hysteresis for the cooling thermostat function C 2 40 The minimum heat output in heating mode 0 41 Fan runs on low speed Not in use 0 0 42 Display View 0 Actual Temp Value 1 Heating Setpoint 2 Cooling Setpoint 3 Average of Heating Cooling 4 Only Setpoint Displacement 5...

Page 15: ... Even 2 71 Modbus Timeout millisecond 3 72 Modbus Response Delay Millisecond 5 73 Heating output 0 For N C actuator 1 For N O actuator 0 74 HMI Displacement View 0 The offset 1 The active setpoint offset 2 The heating setpoint offset 3 The cooling setpoint offset 4 Occupied Heating Setpoint Offset 5 Occupied Cooling setpoint Offset 6 Occupied Average Offset 0 0 75 Free Cooling 0 ON 1 OFF N A 0 76 ...

Page 16: ...t PPM 0 114 Port Mode 0 EXOline Modbus 1 BACnet 0 115 BACnet address Above 127 Slave 116 BACnet device ID low 4 figures 117 BACnet device ID high 3 figures 118 BACnet Max Master 127 119 Com Speed 0 9600 1 19200 2 38400 3 76800 BACnet 0 120 Reset com to factory default Modbus 9K6 8 N 1 0 121 The lowest output the fan will need to start Not in use 0 V 10 122 The highest speed of the fan Not in use 0...

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