A CoolGuard float switch watches the condensate drain and opens the 24VAC thermostat circuit when water backs up, shutting the system down before a clogged line overflows the pan. Pick the FS1 for an inline drain line run on a slope of up to 45 degrees, the FS2 for a horizontal fit at the point where the primary pan meets its auxiliary outlet, or the FS3, which clamps onto a primary or auxiliary drain pan.
Each switch is rated 1.25 amps for Class 2 circuits, and the FS1 and FS2 caps lift off to check the float. It protects the ceilings and floors around attic, closet and above-ceiling installs. That is the CoolGuard float switch.
Features
Shuts Down on a Clog
Opens the 24VAC control circuit when condensate rises, stopping the system until the drain is cleared.
Three Mounting Styles
FS1 inline on the drain line, FS2 horizontal at the primary pan's auxiliary outlet, FS3 clamped to a drain pan.
Slope Tolerant
The FS1 keeps working on drain lines sloped as steeply as 45 degrees.
Fittings Supplied for FS2
The FS2 package includes the adapter, bushing and cap needed for its horizontal fit.
Steel Pan Brackets on FS3
Heavy steel brackets hold the FS3 to the pan edge, and it tolerates an off-center position.
Class 2 Rated
24VAC and 1.25 amps, approved for Class 2 thermostat circuits.
Specifications
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Voltage: 24V
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Color: White
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Dimensions: 1.5"W x 5.75"D x 8"H
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Weight: 1 lbs
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Rating: 24VAC, 1.25 A, Class 2
FS1
FS2
FS3 drain pan
What's Included
- CoolGuard float switch: FS1, FS2 or FS3 as selected
- FS2: adapter, bushing and cap
- FS3: steel mounting brackets
Installation
Homeowner-installable. This accessory is part of MRCOOL's DIY range and is installed following the instructions in MRCOOL's manual, including any wrench, torque or leak-check steps it lists. Check local electrical and building codes for any wiring or wall penetrations.
Turn off power at the panel. Fit the FS1 into the drain line, the FS2 at the primary pan's auxiliary outlet, or clip the FS3 to the pan edge, then wire the switch leads in series with the thermostat control circuit as shown on the package. Lift the float by hand to confirm the system stops.
Shipping, Returns & Warranty
Ships to addresses in the United States only. Shipping cost is calculated at checkout.
Inspect the packaging and the product before you sign. Note any damage or shortage on the delivery receipt, then email photos to support@mycleansupplies.com within 48 hours of delivery so the freight claim can be filed. Damage reported after 48 hours can't be claimed.
MRCOOL handles returns through the store you bought from, so your return comes to us. Unopened, unused MRCOOL equipment can be returned within 21 days of delivery with a return authorization from us. You pay the return shipping, and a restocking fee of up to 20% may be deducted along with payment processing fees. Opened, installed or used equipment and special-order items can't be returned.
MRCOOL does not publish a warranty document for the CoolGuard float switches. Keep your proof of purchase for any claim to MRCOOL.
Warranty claims. MRCOOL handles warranty claims directly through support.mrcool.com or (270) 366-0457. Some MRCOOL warranties cover the original purchaser only. Systems that aren't DIY need a valid installation invoice to open a claim.
About MRCOOL
MRCOOL designs heating, cooling and water-heating equipment from its home base in Hickory, Kentucky. The range runs from DIY ductless mini-splits, built around MRCOOL's patented pre-charged Quick Connect line sets, through contractor-installed mini-splits, central split systems, packaged units and gas furnaces, to HeatWise water heaters and CoolBlade HVLS fans for warehouses and shops.
CoolGuard is a condensate management line that MRCOOL distributes for ductless and ducted equipment. It covers the parts that carry water away from an air handler and the safety switches that stop the system before a blocked drain can overflow: condensate pumps, float switches, a condensate trap kit with its own overflow switch, and drain line sized for mini-split heads. For outdoor condenser supports, see the CoolGuard equipment pad and Weldbracket.
