Products
AFA 1000/BLD
The AFA1000/BLD model is a wall mounting Fresh Air Bleed controller that is suitable for controlling the VAV system duct pressure using a Fresh Air Bleed damper or Fan Inverter drive and includes the following features:-
- Back lit graphic display with a visual area of 56x27mm showing the duct pressure (Pascals or Ins/wg) with VAV out Bar Graph. In an alarm condition the display will toggle between the duct pressure and alarm condition.
- Audio Visual Alarm – Audible alarm with Red, Amber and Green LED’s.
- Password protected pushbutton set up and calibration menus with on screen instructions.
- 2 Relay Inputs configurable as:- Night Setback /Emergency.
- 3 Relay outputs activated by any of the 2 inputs or any of the alarm conditions.
- VAV output to control either VAV damper or Fan Inverter drive.
- Full PII VAV differential pressure set point control.
- Com Port – RS485 for connections to a laptop for diagnostics and configuration of the monitor or for connection via a local Modbus RTU network for remote logging with real time graphical displays using the AFA Network software or for direct connection to a BMS system.
Specifications
Specifications
| Display range: | 0-1000 Pascals (+/- 4.000 Ins/wg) | |
| Alarm range: | 0-1000 Pascals (+/- 4.000 Ins/wg) | |
| Control range: | Differential Pressure control 0-1000 Pascals (+/- 4.000 Ins/wg) | |
| Control resolution: |
1 Pascal (0.001 Ins/wg) |
|
| Control output: | 0-10VDC control output for damper or Inverter drive | |
| Control response: | Less that 1 second | |
| Accuracy: |
Sensor / display resolution 1 Pascal (0.01 Ins/wg) Pressure +/- 1% |
|
| Field set-up: |
Zero point calibration (with on-screen instructions) |
|
| Alarm delays: | User configurable – 0 to 10secs | |
| Relay input: |
2 |
|
| Relay output: |
3 |
|
| Comm. Port: | RS485 – Can be connected via Serial interface to LAN network (Full software available) | |
| Night setback: | Yes | |
| Emergency Input: | Yes | |
| Power Requirement: | Input—240VAC, 50Hz (UK) 230VAC 50Hz (Euro) 120VAC 60Hz (US) | |
| Units: | English and Metric (user selectable) | |
| Display—visual: | VAV output Bar Graph / LEDs: red, alarm; yellow, caution; green, normal / Digital display of pressure reading | |
| Alarm indication: | Red LED & audible alarm (to a certain sound spec) | |
| Horn silence: | Yes (temporary / permanent/automatic depending on type of alarm or external input ) | |
| Mounting: | Wall mounting enclosure | |
| Monitor operating temp: |
55-86°F (13-30°C) |
|
| Storage temperature: | -40-150°F (-40-65°C) | |
| Agency listings: | CE | |
| Hazardous area: | With Suitable rated Pressure sensor for Gas group llC Temp Class T6 (With Atex certified MTL Zener Barriers). |
Product Download
Click here to download Product SheetDimensions
Ordering Options
| BLD | MK2 | UK | MPC |
|---|---|---|---|
| Model | Style | Power Supply | Comms |
| BLD | MK2 | US - 120v 60Hz Euro - 230v 50Hz UK - 240v 50Hz |
M -RS485 MPC - (Modbus RTU) |
Power Supply
The AFA1000/BLD Room pressure controller is supplied with PCB terminals for power connections. The mains supply should be fused 3A.
Comms
The AFA1000/BLD can be supplied with configuration software and cable for connections to a laptop for diagnostics and configuration of the monitor or for connection via a local Modbus RTU network for remote logging with real time graphical displays using the AFA Network software or for direct connection to a BMS system. See Modbus RTU Comms on additional features page.
Additional Features
The AFA1000/BLD controller range includes the following additional features:-
- Outputs for 2 x damper actuators, (max 30VA / 30VDC per output).
- Modbus RTU Coms – For connection to AFA Network or BMS.
The AFA1000/BLD can be supplied with a custom overlay (details on request).
Accessories & Airflow Sensor Options
Accessories
Temperature Electronics Ltd.
Unit 2
Wren Nest Road
Glossop SK13 8HB
UK
T. 01457 865 635
F. 01457 868 843
E. sales@tel-uk.com