Table of Contents
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STRA-04 Room controller. Installation and maintenance manual.
Contents STRA-04 for Optivent
Installation instructions........................................................................2
Controller................................................................................................3
Display handling...................................................................................3
Technical data........................................................................................4
Configuration........................................................................................4
Operating modes..................................................................................6
Control...................................................................................................7
Condensation detector/Window contact/Frost protection.............8
Parameter settings................................................................................9
Function key........................................................................................11
8790 GB 2016.03
Fläkt Woods
1
Specifications are subject of alteration without further notice.
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Table of Contents
Summary of Contents for flakt woods STRA-04
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Page 1: Table Of Contents
STRA-04 Room controller. Installation and maintenance manual. Contents STRA-04 for Optivent Installation instructions................2 Controller....................3 Display handling...................3 Technical data..................4 Configuration..................4 Operating modes..................6 Control....................7 Condensation detector/Window contact/Frost protection.....8 Parameter settings................9 Function key..................11 8790 GB 2016.03 Fläkt Woods Specifications are subject of alteration without further notice. -
Page 2: Installation Instructions
STRA-04 Room controller. Installation and maintenance manual. STRA-04 for Optivent Installation instructions Follow local safety regulations when installing the product. For information on putting the product into operation, see the manual "STRA Manual", which can be downloaded from www.flaktwoods.com. Dimensions Dimensions given in mm Fläkt Woods... -
Page 3: Controller
If the Function button is pressed briefly (less than 5 Connection diagram for STRZ-05, STRZ-18, STRZ-09, seconds) when the controller STRA-04 is in the Preset STRZ-70, EMSS and condensation sensor STRZ-16 operating mode (Parameter 45, FS = 3 = Occupied), the controller switches to the Bypass operating mode. -
Page 4: Technical Data
2.1 mm Connection To keep the unit as compact as possible, the communication input on the STRA-04 is not galvanically separated from the supply voltage. This means that it is vital to be able to distinguish clearly between G and G0, as well as the communication input's A and B. - Page 5 RS485 communication A RS485 communication B On version 1.4.x.x.x has UO2 and UO3 switched pin for STRA-04, UO2= Pin 22 and UO3=24. You can with parameter 328 switch back UO2 to pin 24 like in 1.3.x.x.x by set 328 to 0.
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Page 6: Operating Modes
On the display, the background lighting is lit (dimmed) Operating modes and the occupancy indicator is lit (see Display Handling STRA-04 has five operating modes. The Function button section). The current room temperature (or setpoint can be used to switch between three of them. These depending on the configuration) is shown. -
Page 7: Control
If the Function button is pressed briefly when the Control controller is in Shutdown or Preset mode, the controller STRA-04 can be configured for different control states/ will switch to Bypass mode. If the button is pressed control sequences (Parameter 11, FS = 4 = Heating/Cooling... -
Page 8: Condensation Detector/Window Contact/Frost Protection
(parameter 112 FS =500 ppm), it starts controlling Parameter menu against a fully open damper (UO3). The damper opens In STRA-04, various parameter values can be set in a fully at Parameter 113 (FS=1000 ppm). Heating/Cooling parameter menu. This parameter menu is accessed by (PI) in controlled concurrently with the CO control. - Page 9 STRA-04 Room controller. Installation and maintenance manual. STRA-04 for Optivent Parameters The following parameters are modifiable in the parameter menu FS = factory-set value): Parameter Description Values Unit FS STRA-04 number Occupied Heating Setpoint °C Occupied Cooling Setpoint °C Standby Neutral Zone °C...
- Page 10 The lowest output the fan will need to start (Not in use) The highest speed of the fan (Not in use) The Model in Regin Range 1939 = STRA-07, 1943 = STRA-04, 1945 = STRA-14 Read Only 1943 Major Version...
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Page 11: Function Key
STRA-04 Room controller. Installation and maintenance manual. STRA-04 for Optivent Parameters The following parameters are modifiable in the parameter menu FS = factory-set value): Parameter Description Values Unit FS STRA-04 number Voltage x 10 for nozzle 2 Voltage x 10 for nozzle 3... - Page 12 STRA-04 Room controller. Installation and maintenance manual. User instruction 1. A brief pressure on the function key toggles between forced supply air and normal operation. Forced supply air is indicated by this symbol: 2. A long pressure (over 5 seconds) on the function key shuts the controller off, i.e.