Duct pressure control - static transducer
Application
Control strategy
Operating modes
Variable operation (V)
Constant value mode (F)
Interface
Analogue interface with adjustable signal voltage range
Signal voltage ranges
Operating parameters
Parts and characteristics
Note:
Depending on variant, e.g. acoustic cladding, differential pressure sensors or pressure connections of the control unit are not accessible for this attachment.
Construction
Type 227P-024-15-DS6 for control units of types
Commissioning
Useful additions
A static differential pressure transducer converts the differential pressure into a voltage signal. The differential pressure actual value is available as a voltage signal. The factory setting is such that 10 V DC always corresponds to the nominal differential pressure (Δp nom). The differential pressure setpoint value is either a constant value or it comes from a setpoint adjuster or from switch contacts. The controller compares the differential pressure setpoint value to the actual value and controls the actuator accordingly if there is a difference. Differential pressure parameters and signal voltage range are stored in the control component. Customers can easily make changes using an adjustment device or a notebook with service tool.
Category
Application
Static transducer for duct pressure control in ventilation and air conditioning systems
Control range 25 – 550 Pa
Supply voltage
Actuator
Installation orientation
Interface/signalling
Connection
Interface information
Special functions
Parameter setting
Factory condition
TVR | – | D | / | 200 | / | D2 | / | XF0 | / | PDS | / | V | / | Pmin | – | Pmax | |
| | | | | | | | | | | | | | | | ||||||||||
1 | 2 | 5 | 6 | 7 | 8 | 9 | 11 | ||||||||||
D With acoustic cladding
3 Material
A2 Stainless steel construction
5 Nominal size [mm]
100, 125 , 160, 200, 250
6 Accessories
No entry required: None
D2 Double lip seal both sides
G2 Matching flanges both sides
7 Attachments (control component)
XF0 Compact controller with dynamic transducer
8 Equipment function/Installation location
PDS Duct pressure control, supply air
PDE Duct pressure control, extract air
9 Operating mode
F Constant value (a setpoint value)
V Variable (setpoint value range)
10 Signal voltage range
0 0 – 10 V DC
2 2 – 10 V DC
11 Operating values for factory setting
Duct pressure in Pa
Pconst (only with operating mode F)
Pvmin (only with operating mode V)
Pvmax (only with operating mode V)
Order example: TVR/100/D2/XF0/PDS/V0/300-500 PaAcoustic cladding without Material Galvanised sheet steel Nominal size 100 mm Accessories Double lip seal both sides Attachment Compact controller for duct pressure Equipment function/installation location Duct pressure control, supply air Operating mode Variable operation – signal voltage range 0 –10 V DC Operating value 300 – 500 Pa
Compact controllers for VAV terminal units
VAV terminal units | Type of installation component | Part number |
TVR, TVJ, TVT, TZ-Silenzio, TA-Silenzio, TVZ, TVA, TVRK | 227P-024-15-DS6 | A00000038356 |
Compact controller XF0, 227P-024-15-DS6
Supply voltage (AC) | 24 V AC ± 20%, 50/60 Hz |
Supply voltage (DC) | 24 V DC ± 20 % |
Power rating (AC) | 5 VA max. |
Power rating (DC) | Max. 2.5 W |
Nominal pressure range | 0 – 600 Pa |
Pressure control range | 25 – 550 Pa |
Torque | 15 Nm |
Setpoint value signal input | 0 – 10 V DC, Ra > 100 kΩ or 2 – 10 V DC, |
Actual value signal output | 0 – 10 V DC or 2 – 10 V DC, |
IEC protection class | III (protective extra-low voltage) |
Protection level | IP 42 |
EC conformity | EMC to 2014/30/EU |
Analogue interface 0 – 10 V or 2 – 10 V DC (operating mode V, F)
The analogue interface can be set for signal voltage range 0 – 10 V DC or 2 – 10 V DC. The assignment of the duct pressure setpoint value or actual value to a voltage signal is shown in the characteristic curves.
▪ The set signal voltage range applies to both setpoint value and actual value signals
▪ The signal voltage range is pre-set in the factory in accordance with the order code entries
▪ The signal voltage range can be adjusted by others with an adjustment device
Setpoint value default setting
Variable operation
▪ In operating mode V (variable operation), the setpoint comes from an analogue signal on terminal Y
▪ The selected signal voltage range 0 – 10V or 2 – 10V DC is assigned to the pressure range Pmin – Pmax .
▪ Operating values Pmin – Pmax preset at the factory according to the order code
▪ Subsequent adjustment of Pmin or Pmax is possible with adjustment device
Constant value mode
▪ In the operating mode F (constant value mode), an analogue signal is not required on terminal Y
▪ The set duct pressure constant value Pmin is used.
▪ Operating value Pmin is preset at the factory according to the order code
▪ Subsequent adjustment of Pmin is possible with adjustment device
Actual value as feedback for monitoring or tracking control
▪ The actual duct pressure measured by the controller can be captured as a voltage signal at terminal U
▪ The selected signal voltage range 0 – 10V DC or 2 – 10V DC is converted to the pressure range 0 – PNominal .
▪ Reference point PNominal = 600 Pa
Override control
For special operating situations, the duct pressure controller can be put in a special operating mode (override control). The following modes are possible: control Pmin, control Pmax, damper blade in the OPEN position, damper blade CLOSED. Under certain conditions, the control can also be suspended (control stop).
Override control via signal input Y
With appropriate wiring on the signal input Y, the override controls can be activated according to the connection diagrams via wiring with external switch contacts/relays. OPEN and CLOSED are only available if the controller is supplied with alternating current (AC). In the signal voltage range 2 – 10 V, the differential pressure control can be suspended (stop) by connecting input Y to GND.
Override control CLOSED via control signal Y
Override control for diagnostic purposes
Prioritisation of various setting options
Commissioning
For supply air:
For extract air:
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Contact
We are here for you
Please specify your message and type of request
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265
Contact
Thank you for your message!
Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265