Supco Adjust Air Press Sw .5-12" WC | AFS222121

Name: Supco Adjust Air Press Sw .5-12" WC | AFS222121
Brand: Supco
SKU: AFS222121
Price: 100.27 USD
Availability: InStock

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Supco AFS222121 Adjust Air Press Sw .5-12" WC

UPC:
Condition:: New
Width:: 6.00 (in)
Height:: 3.00 (in)
Depth:: 4.00 (in)

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Overview

Supco Adjust Air Press Sw .5-12" WC | AFS222121

Product details

Description

Product Summary

The Supco AFS222121 Adjust Air Press Sw .5-12" WC is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. General purpose proving switch designed for HVAC and energy management applications.

Pressure switches protect HVAC and refrigeration systems by opening the circuit when pressures move outside a safe range. This group covers high and low pressure controls, fan-cycling switches, manual-reset safeties, and furnace air (draft inducer) proving switches. Match the cut-in/cut-out settings, connection type, and contact configuration to the application.

Key Features

Adjustable air pressure sensing switch
Replaces White Rodgers® 770-1
Senses positive, negative or differential air pressure
Set point range: 0.05" to 12.0" W.C.
SPDT switch

Cross Reference

The Supco AFS222121 is a direct replacement for the following OEM and competitor part numbers. Always verify ratings and fit against the original part before installing.

White Paper

What's Included

(1) Supco AFS222121 Adjust Air Press Sw .5-12" WC

Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.

Comfort for the people who live there

The right equipment keeps the rooms you live in steady and quiet, whether it's dinner in the kitchen or a weekend project in the garage.

Specifications

Extra Information

Find your comfort-ready size with confidence

Get a fast, learning-friendly estimate for tons and BTUs, then review it with a Pro to dial in the perfect fit for your home.

Quick sizing snapshot

Enter your home size and a few basics to see a quick HVAC365 sizing snapshot you can review with a Professional.

Home size (sq ft)

Enter at least 100 sq ft.

Use conditioned square footage only; skip garages and unfinished basements.

Climate

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Home type

Select your home type.

Shared walls and insulation levels change the load—pick what matches your structure.

System type

Choose a system type.

Match the system to your ductwork, fuel, or preferred heat source for best comfort.

This is a sizing estimate for general guidance only. Always confirm final size, duct design, and fuel type with a Professional before purchasing equipment or pulling permits.

Brand:

Supco

Width:

6.00 (in)

Height:

3.00 (in)

Depth:

4.00 (in)

Weight:

1.00 LBS

Safety Information:

⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Prop 65 Warning:

Yes

Part Type:

Pressure Switch

Set Point Range:

0.05 ± .02"w.c to 12.0"w.c

Operating Range:

0.07"w.c to 12.0"w.c

Release Range:

0.04"w.c to 11.2"w.c

Maximum pressure:

0.5 psi (0.03 bar)

Operating Temperature:

-40 to 82°C (-40 to 180°F)

Product Life:

100,000 cycles

Approvals:

UL, FM, CSA

Replaces:

2374-410, 770-1

Model Number:

AFS222121

Replaces Models:

Robertshaw 2374-410, White Rodgers 770-1

Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.