🔗 Junction Section
Junction sections connect different AHU modules and provide transition points.
Junction — configuration panel
Junction — CAD schematic view
| Parameter | Description |
|---|---|
| Length | Custom junction length (mm) |
| Access Door | Optional maintenance access |
| Inspection Window | Round porthole option |
🔇 Sound Attenuator
Sound attenuators reduce noise generated by fans and airflow. Place after the fan section toward the supply duct.
Sound Attenuator — configuration panel
Sound Attenuator — CAD view
Advanced Options
Sound Attenuator — advanced parameters
| Parameter | Description |
|---|---|
| Insertion Loss | dB reduction per octave band |
| Splitter Count | Number of acoustic splitters |
| Splitter Thickness | mm — thicker = more attenuation |
| Length | mm — longer = more low-frequency attenuation |
| Pressure Drop | Pa — auto-calculated |
💡 Tip
Always add an attenuator when fan noise exceeds 75 dB(A) for office supply. Check both supply and return paths.
🔍 Inspection Section
Inspection sections provide maintenance access to internal components.
Inspection Section — configuration panel
Inspection Section — CAD view
| Parameter | Description |
|---|---|
| Length | Access space (mm) |
| Door Type | Single/Double |
| Lighting | Wired inspection light |
| Microswitch | Safety interlock on door |
♻️ Heat Recovery (Overview)
CTAPRO supports two heat recovery technologies via the component palette:
| Type | Mechanism | Recovery | Efficiency |
|---|---|---|---|
| Plate Heat Exchanger | Static plates | Sensible only | 50–75% |
| Heat Wheel | Rotating wheel | Sensible + latent | 70–85% |
Recovery coils (air-to-air dual circuit) are configured under Coils → Recovery Coil.
Energy Recovery — system comparison diagram