CoolGuard FS1 Float Switch for HVAC Condensate Drain Protection- 24VAC Safety Switch

Short Description

Protect your HVAC system from costly condensate overflow with the CoolGuard FS1 Float Switch. Designed for sloped drain line installations up to 45°, the FS1 automatically shuts down your air conditioner or heat pump when a clogged condensate drain is detected, helping prevent water damage to air handlers, ceilings, walls, and flooring. Compatible with 24VAC Class 2 thermostat circuits, it’s an easy upgrade for residential and light commercial HVAC systems.

 

Water damage caused by clogged condensate drains is one of the most common HVAC service issues. The CoolGuard FS1 Float Switch provides an affordable layer of protection by automatically shutting down your HVAC system before overflowing condensate can damage your equipment or home.

Designed specifically for sloped condensate drain line installations, the FS1 continues to operate properly even on drain lines angled up to 45 degrees, making it an excellent choice for installations where traditional float switches may not perform reliably.

When the condensate drain becomes blocked, the float rises and interrupts the 24VAC control circuit, safely shutting down the air conditioner or heat pump until the drain obstruction has been cleared.

The removable inspection cap allows technicians to quickly inspect and service the switch without removing the entire assembly, reducing maintenance time.

Ideal for:

• Central Air Conditioners
• Heat Pumps
• Air Handlers
• Ducted HVAC Systems
• Mini Split Air Handlers with Drain Protection
• Residential HVAC
• Commercial HVAC

Whether you’re a homeowner looking to protect your investment or an HVAC contractor installing a new system, the CoolGuard FS1 offers dependable overflow protection with simple installation.

 

Features

• Automatically shuts down HVAC equipment during condensate overflow
• Designed specifically for sloped drain lines
• Operates properly on drain slopes up to 45°
• Helps prevent water damage
• Easily removable inspection cap
• Heavy-duty construction
• Compatible with Class 2 thermostat circuits
• Ideal for primary condensate drain protection
• Works with air conditioners and heat pumps
• Residential and commercial applications

 

Specifications

Brand: CoolGuard

Series: CoolGuard

Model: FS1

UPC: 840433704232

Voltage: 24 VAC

Current Rating: 1.25 Amps

Application: Condensate Drain Float Switch

Circuit: Class 2 Thermostat Circuit

Installation: Sloped drain lines (up to 45°)

Color: White

Contains Electronics: Yes

 

Dimensions

• Height: 8 in.
• Width: 1.5 in.
• Depth: 5.75 in.

Weight

• 1 lb

 

Perfect For

• Air conditioners
• Heat pumps
• Air handlers
• Condensate drain systems
• HVAC contractors
• Residential HVAC
• Commercial HVAC
• New installations
• Replacement float switches
• Preventing water damage

 

Why Buy From MRCOOL DIRECT?

Protect your HVAC investment with genuine CoolGuard accessories from MRCOOL DIRECT. We offer fast shipping, competitive pricing, expert support, and dependable products designed to help keep your heating and cooling system operating safely and efficiently.