Johnson Controls KAFS Air Flow Switch with 80x175mm Paddle and IP65 Rating for HVAC Systems
The Johnson Controls KAFS Air Flow Switch is a reliable monitoring device designed for HVAC systems and industrial applications. This replaceable switch detects airflow in ducts and chambers, providing essential control for heating, cooling, and air conditioning equipment.
Control and monitor air and non-aggressive gases flow in ducts, chambers, and HVAC equipment including heating, cooling, and air conditioning systems.
- Renovated SPDT micro switch ensures reliable switching function
- Stainless steel paddle with brass level
- Cut-in and cut-out flow rate monitoring
- IP65 protection rating for durable performance
| Model | KAFS |
|---|---|
| Operation Type | On/Off, single-stage, micro switch |
| Flow Rate Switching | Cut-out: 1.0-8.0 m/sec, Cut-in: 2.5-9.2 m/sec |
| Paddle Size | 3.2 x 6.9 inches (80 x 175 mm) |
| Paddle with Level Length | 7.9 inches (200 mm) |
| Flow Applications | Air and non-aggressive gases |
| Ambient Temperature | Housing: -40°F to 185°F (-40°C to 85°C) |
| Ambient Humidity | 10-90% RH, non-condensing |
| Cable Entry | M18 fitting |
| Housing Material | Base: Galvanized steel, Cover: ABS or PC |
| Protection Rating | IP65 |
| Installation | Duct mounted |
| Ship Weight | 0.7 kg |
The flow switch should be mounted into a duct or chamber where the air paddle can freely point horizontally downwards. To avoid air swirl and paddle instability, provide straight zones for a length of 5 times the diameter of duct upstream and downstream from the installation location.
Units are factory calibrated to the minimum switch-off value. To increase the set value, adjust the range screw clockwise. Due to fracture risk at air speeds above 5.0 m/sec, the paddle must be cut off on the marked side. When the paddle is cut off, the minimum cut-out value increases from 1.0 m/sec to 2.5 m/sec.
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