ISO 9001
SMACNA
Product Code: CEI-VAV / VAV-SD / VAV-DD
Variable Air Volume (VAV)
نظام تحكم متغير في الهواء VAV
VAV terminal units adjusting conditioned air volume to individual zones based on thermal load. Single and dual-duct configurations. Compatible with BMS and DDC control systems.
Frame Material
Product Description
Castle Variable Air Volume (VAV) Terminal Units regulate conditioned airflow to individual zones based on thermostat demand — varying air volume at constant temperature for optimal energy efficiency. Galvanized steel casing with acoustic lining, multipoint airflow sensor, modulating actuator and DDC controller. Compatible with BACnet and Modbus BMS protocols. Available in single-duct and dual-duct configurations.
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Casing Material | Galvanized steel 0.9mm — sealed and insulated | mm |
| Acoustic Lining | 12.5mm glass fibre — 32 kg/m³, UL 181 rated | mm |
| Airflow Sensor | Multipoint differential pressure flow grid | — |
| Actuator | 0-10V modulating / 24V AC spring-return | — |
| DDC Controller | Built-in — BACnet MS/TP or Modbus RTU | — |
| Thermostat | 0-10V analog / Digital DDC room sensor | — |
| Capacity Range | 40-4000 CFM (7 sizes) | CFM |
| Inlet Connection | Round spigot — for flexible duct connection | — |
| Outlet | Rectangular — TDF or S&D flange | — |
| Noise Level | NC 25-35 (depending on size and airflow) | NC |
| Transformer | Step-down 240V to 24V | V |
| Compliance | AHRI 880 / ASHRAE / SMACNA / UL | — |
Fields of Application
Tests & Certificates
ISO Certification
International Quality Certifications
International Standards
SMACNA · DW144 · IGC · UL
Duct Test
Rigorous leakage and pressure testing to SMACNA and DW144 standards.
Air Tests
Air velocity and distribution testing.
