Fire & Smoke Actuator · 24 Vac · 6"–20"
HAC-90: Inline Damper with Belimo FSLF24 US
Hoyme inline round damper driven by a Belimo FSLF24 US on/off, spring return fire and smoke actuator at 24 Vac. Power Open or Power Close. Sizes 6" to 20", with other sizes available on request.
Shop HAC-90 →⚠ Not a listed fire, smoke or combination damper
This Hoyme damper assembly is not UL 555 or UL 555S listed and is not CSA certified. Fitting a Belimo fire and smoke actuator does not make the assembly a listed damper. Where a code, a specification or the authority having jurisdiction requires a listed fire damper, smoke damper or combination fire/smoke damper, specify a listed damper assembly. Do not use the HAC-90 in its place.
Is this the right product?
✔ Right product if
You want a Hoyme inline round damper with a Belimo FSLF24 US spring return actuator at 24 Vac, on an application that does not require a listed fire or smoke damper assembly.
✗ Not this product if
- A listed fire, smoke or combination damper is required: specify a listed damper assembly
- Standard fresh air, ventilation or zone control: use the HAC-40 (TFB24)
- 120 Vac supply: use the HAC-80 (FSLF120 US)
Features
- Belimo FSLF24 US on/off, spring return fire and smoke actuator, 24 Vac
- Mounting collar up to 9", or order without
- Reinforcement bands on dampers 10" and larger
- ¼" shaft up to 20"; ⅜" shaft on 20" and larger, and whenever the end switch is added
- Power Open (PO) or Power Close (PC) sets the damper action when power is switched on
- Options: end switch, and heat design with 10% bypass (-H)
- 6" to 20" listed; other sizes available on request
Confirm PO or PC with the design engineer in writing before ordering. The action code decides where the blade goes when power is removed. A Power Open damper springs closed; a Power Close damper springs open.
Configuration Guide
| Variant | Action | End Switch | Heat Bypass | Example (10") |
|---|---|---|---|---|
| OPO | Power Open: spring closes on power loss | No | No | HAC-1090-OPO |
| OPO-H | Power Open: spring closes on power loss | No | 10% | HAC-1090-OPO-H |
| SPO | Power Open: spring closes on power loss | Yes | No | HAC-1090-SPO |
| SPO-H | Power Open: spring closes on power loss | Yes | 10% | HAC-1090-SPO-H |
| OPC | Power Close: spring opens on power loss | No | No | HAC-1090-OPC |
| OPC-H | Power Close: spring opens on power loss | No | 10% | HAC-1090-OPC-H |
| SPC | Power Close: spring opens on power loss | Yes | No | HAC-1090-SPC |
| SPC-H | Power Close: spring opens on power loss | Yes | 10% | HAC-1090-SPC-H |
Part number: HAC-[size][90]-[O or S][PO or PC][-H]. Size codes 06 to 20. 90 = Belimo FSLF24 US. O = no end switch, S = end switch. -H = heat design with 10% bypass.
Key Specs
Common Questions
Is the HAC-90 a listed smoke damper?
No. The Hoyme damper assembly is not UL 555 or UL 555S listed. Where a listed fire, smoke or combination damper is required, specify a listed damper assembly.
Who decides PO or PC?
The design engineer, based on where the blade must go when power is removed. Get it in writing before ordering.
Can I replace just the actuator?
Yes. The Belimo FSLF24 US is available through Belimo distributors and mounts to the Hoyme damper body. Confirm the replacement model matches the installed unit.
Is there a 120 Vac version?
Yes, the HAC-80 (Belimo FSLF120 US).
Need help specifying the HAC-90?
Call technical support with your duct size, supply voltage and required action.
Call 1-800-661-7382Contractor? Order through your HVAC wholesaler for your account pricing. Find a wholesaler
No wholesaler account? Buy direct online at list price. Ships across Canada and the US. Buy online · How to buy
Not sure it's the right part? Call 1-800-661-7382 for free technical support.