Kiway offers three direct-coupled damper actuator models — spring return and non-spring return — engineered for reliable control of dampers in commercial and residential HVAC systems.
Direct-coupled, 24 VAC, on/off, spring return
The KD10 Series is a compact, direct-coupled spring return damper actuator designed for two-position fail-safe applications. It features a hysteresis synchronous motor with an additional small spring to reduce gear train closing shock. Quick damper opening and closing with adjustable end stop for easy field configuration.
| Power Supply | 24 VAC, 50/60 Hz, 7.5 VA |
|---|---|
| Control Signal | On/off (two-wire thermostat control) |
| Torque | 30 oz·in (0.2 N·m) |
| Angular Rotation | 0 to 93° |
| Stroke Speed (power open) | 30 seconds for 93° |
| Stroke Speed (spring return) | 6 seconds |
| Shaft Compatibility | 5/16" (8 mm) round shaft |
| Dimensions | 3.3 x 2.7 x 3.5 in (83 x 68 x 88 mm) |
| Weight | 1.1 lb (0.5 kg) |
| Enclosure | Stainless steel base with aluminum cover |
| Operating Temperature | 0 to 120°F (–17 to 49°C) |
| Humidity | 5 to 95% RH (non-condensing) |
Direct-coupled, 12 VDC, on/off or floating, compact
The KD20 Series is a compact, direct-coupled non-spring return damper actuator ideal for two-position zone dampers in HVAC systems requiring high rotation speed and low torque. Features dual-color LED indicators (green/red) for open/close position and troubleshooting, plus adjustable cam for clockwise direction setting.
| Power Supply | 12 VDC, 2 VA |
|---|---|
| Control Signal | On/off or floating |
| Torque | 3.5 in-lb (0.4 N·m) |
| Motor Timing | 4 to 8 seconds for 90° |
| Angular Rotation | 90°, adjustable for CW direction |
| Shaft Compatibility | Square shaft 0.22 in (5.6 mm), min. 1.5 in length |
| Connections | Screw terminal block, wire 14 to 22 AWG |
| Dimensions | 4.7 x 2.4 x 1.3 in (120 x 62 x 33 mm) |
| Weight | 0.33 lb (0.15 kg) |
| Enclosure | Plastic nylon |
| Noise Level | < 35 dBA max. at 1 meter |
| Operating Temperature | –4 to 140°F (–20 to 60°C) |
| Humidity | 5 to 95% RH (non-condensing) |
Direct-coupled, 24 VAC/DC, on/off or floating, high-torque
The KD30 Series is a direct-coupled non-spring return damper actuator with higher torque output for larger dampers. Features a bi-color LED indicator, manual gear release button for easy field setup and adjustments, adjustable end stops for both open and close positions, and screw terminal block wiring.
| Power Supply | 24 VAC/DC, 50/60 Hz, 2 VA Class 2 |
|---|---|
| Control Signal | On/off or floating |
| Torque | 13 in-lb (1.5 N·m) |
| Motor Timing | 30 to 40 seconds for 95° |
| Angular Rotation | 0 to 95°, adjustable |
| Shaft Compatibility | Round 1/4 to 5/8 in (6 to 16 mm), Square 1/4 to 7/16 in (6 to 11 mm), min. 1.5 in length |
| Connections | Screw terminal block, wire 14 to 22 AWG |
| Dimensions | 5 x 2.6 x 2 in (127 x 66 x 51 mm) |
| Weight | 0.75 lb (0.34 kg) |
| Enclosure | Flame-retardant plastic |
| Noise Level | < 35 dBA max. at 1 meter |
| Operating Temperature | –4 to 140°F (–20 to 60°C) |
| Humidity | 5 to 95% RH (non-condensing) |
Explore Kiway's KZ and KZH223 series zone valves for hydronic heating and cooling systems.
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