Hydro Air Fan Control w/ Time Delays Zoom

Hydro Air Fan Control w/ Time Delays


Brand: Taco

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In Stock! Ships in 24-48 Hours
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Application: Fan Control
Pump Rating: 1/6 HP
Switch Action: DPDT
Features: Time Delays

Description for Taco HAFC201-4

The Hydro Air Fan Control is an interface between the thermostat and air handler. It also has an isolated end switch to start the boiler and/or pump. When the thermostat calls for heat, the Fan Control energizes the end switch relay and allows the fan to operate at low speed when the water is above the optional aquastat setting. When the thermostat calls for cooling, the Fan Control energizes the condenser and operates on high speed. The Fan Control also includes three built-in fan time delay options, two selectable pump exercise modes, a secondary aquastat connection for freeze protection and the ability to switch a pump and / or boiler.


  • Automatic Multi-Speed Switching
  • Prevents False Calls for Fan Operation
  • Simplified Wiring
  • Contractor-Friendly PC-Board Layout
  • Built in Time Delays
  • Pump Exercise Timer
  • 100% Factory Tested

Hydro Air Fan Control w/ Time Delays


by PowerReviews
TacoHydro Air Fan Control w/ Time Delays

(based on 3 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




No Pros


No Cons

Best Uses

No Best Uses
    • Primary use:
    • Personal (3)

Reviewed by 3 customers

Displaying reviews 1-3

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Interface: T-stat, AHU, & Boiler

By Sierradmax

from RI

Verified Reviewer

Comments about Hydro Air Fan Control w/ Time Delays:

I was fed up with the control to my Hydro-air Fan coils. Their original control was through an aquastat. I was constantly trying to "dial-in" the aquastat settings in order to control the Fan upon a call for heat. I would always get false calls and often cold air blowing at the end of each cycle. I tried insulating the HW lines and it made it worse. Now, I get heat when it's called for and turns off when it needs to be off! Also, I have a AHU in the attic for 2nd floor Heat/AC. Freeze protection is a nice feature.

  • Primary use:
  • Personal

Does the job!

By Tradingdad

from Long Island NY

Verified Buyer

Comments about Hydro Air Fan Control w/ Time Delays:

This item is perfect to go in between the thermostat airhandler and combi boiler. This item resolved the cold air problem between the boiler valve cutoff and airhandler over run. Works great for the price easy to install.

  • Primary use:
  • Personal

(1 of 1 customers found this review helpful)


Great Controller!

By HydroMan

from Pittsburgh, PA

Verified Buyer

Comments about Hydro Air Fan Control w/ Time Delays:

This controller rocks! I used it to control my old gas fired furnace that I converted over to hydronic forced air. I was able to keep my high efficiency filter and all my existing duct. I like the circulation feature during the cooling season so I don't have to worry about stagnant water. The only drawback is that this unit requires a separate relay control board to operate the furnace fan. I think they could have incorporated the relays in this unit and made it a one-stop shop.

  • Primary use:
  • Personal

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1 Question | 1 Answer
Displaying question 1
  • Hydro Air Fan Control w/ Time Delays


    My fan is not working and the indicator light on my fan control is not on. All three are off. Is it the fan control or something else?
    Asked on 3/21/2015 by Ewald from Milton, ma

    1 answer



      we can not trouble shoot, you should contact Taco's tech support.

      Answered on 3/23/2015 by Supplyhouse Staff from New York
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