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Ranco F25-107 HVAC fan control with 60 inch capillary tube

Ranco

Ranco F25-107 HVAC Control 40-75F 60 in Capillary

SKU CH-Z0QX-J89AJ

Fan control for commercial refrigeration with 40 to 75F range and 60 in capillary

  • Controls fans from 40 to 75 °F for reliable defrost termination
  • 60-inch capillary provides flexible mounting in commercial refrigeration systems
  • SPDT contacts rated 20 A full load and 80 A locked rotor handle heavy compressor loads
  • Fixed 20 °F differential keeps temperature swings tight without adjustment
  • Pilot duty rated 360 VA for direct control of electric heat or hot gas valves

Ranco F25-107 HVAC Fan Control

The Ranco F25-107 is a single-pole double-throw fan control built for commercial refrigeration, electric heat, hot-gas and reverse-cycle systems. It manages defrost termination and fan delay across a 40 to 75 degrees Fahrenheit range with a fixed 20-degree differential. A 60-inch capillary connects to a 3/8-inch diameter, 4-inch long sensing bulb. The switch carries a 20-ampere full-load rating and 80-ampere locked-rotor rating at 360 VA pilot duty.

Installation and common issues

Mount the control where the capillary can reach the sensing point without sharp bends that restrict fluid movement. Wire the SPDT contacts according to the system schematic, observing the 20-ampere full-load and 80-ampere locked-rotor limits. The fixed 20-degree differential cannot be adjusted, so verify the application tolerates that span before fitting. Capillary kinks or an oversized bulb well are the usual causes of sluggish or inaccurate response.

Suited for fixed-differential defrost

This control suits technicians who need a ready-to-install, fixed-differential switch for the listed temperature band and electrical ratings. It is not for installers who require an adjustable differential, a different temperature span, or a control rated for higher pilot-duty VA. Buyers needing a separate heating-stage contact or a digital display should look at other models.

Highlights

  • Controls fans from 40 to 75 °F for reliable defrost termination
  • 60-inch capillary provides flexible mounting in commercial refrigeration systems
  • SPDT contacts rated 20 A full load and 80 A locked rotor handle heavy compressor loads
  • Fixed 20 °F differential keeps temperature swings tight without adjustment
  • Pilot duty rated 360 VA for direct control of electric heat or hot gas valves

Specifications

BrandRANCO

Questions about this item

How can I verify the F25-107 is switching correctly after wiring it for defrost termination?

Use a multimeter on the SPDT contacts while the bulb temperature crosses the 40 to 75 degrees F range; the circuit should change state at the set point with the fixed 20 degrees F differential.

What components come with the F25-107 and what must be sourced separately?

The control includes the capillary bulb assembly with 60 in capillary and SPDT switch rated for 20 A full load; mounting hardware, wiring connectors and any required conduit are not included.

Which version of the F25-107 suits a commercial refrigeration system needing fan delay between 40 and 75 degrees F?

The listed F25-107 model covers exactly that 40 to 75 degrees F range with a 60 in capillary, 20 A full-load rating and 360 VA pilot duty, matching commercial refrigeration, electric heat and reverse-cycle applications.

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