How to Wire a 2 Speed Inline Duct Fan?

Two Speeds Inline Fan Wiring Instruction

1. Wiring Diagram:

N: COMMON
LB: LOW SPEED
LA: HIGH SPEED

2. Wiring with REB Speed Control:

Remark:To avoid influencing the fan service life,the optimal adjustable speed range is from 70% to 100%.

3. Switch Control:

N: COMMON
LB: LOW SPEED
LA: HIGH SPEED
C: SWITCH

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