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Installation Instructions:

Notice: 

Failure to read and comply with all warnings, cautions and instructions prior to starting installation may cause personal injury and/

or property damage and void the warranty.

AUXILIARY DRAIN PAN INSTALLATION 

(Works with 1-2” deep drain pans):

 

1. 

Disconnect power to air conditioner (A/C) unit at main panel. 

2. 

Clip Bracket onto the side of the auxiliary drain pan at the 

lowest end (Fig 1). 

3. 

Secure the Thumb Screw until the Bracket is firmly attached to the pan (Fig 2), ensuring switch wires are 

positioned up. Float should move freely. 

4. 

It is recommended to push the Stem to the bottom position for the most sensitive 

water detection (Fig 3). Ensure Stem Subassembly is firmly secured to the bracket. 

5. 

Wire the switch per instructions under 

WIRING (Fig. 4).

 6.

 Test the switch by lifting the Float while the unit is running. If wired correctly, the A/C unit will stop. 

7. 

Test 

switch sensitivity: Fill pan with water. Float should rise and A/C unit should stop before pan overflows. If sensitivity needs to 

be adjusted, move the Stem Subassembly up or down accordingly.

 8. 

Place the included Warning Sticker on a visible surface, 

such as the air handler or condenser unit.

Push stem to bo

tt

om

(Fig.1)

(Fig.2)

(Fig.3)

IMPORTANT SAFETY INFORMATION:

 

1. 

This device must be installed strictly in accordance with manufacturer’s instructions (to ensure proper operation) and in accordance with all 

 

applicable local plumbing, drainage and electrical codes.

 

2. 

Electric shock hazard. Disconnect power supply before installing this product to avoid electrical shock and/ or equipment damage.

 

 

Use in Class 2 (thermostat) circuit only, not to exceed 24-volts, 1.25 amps to avoid damage or fire hazard.

 

1. 

This device will not detect clogs occurring upstream from the installation point.

 

2. 

If not present, it is recommended that a fuse and time delay be installed, to protect the 24-volt circuit and avoid rapid cycling of equipment,

 

 

prior to installing this product.

 

3. 

This product is intended for use in water only. Not for use in the presence of flammable liquids or vapors.

 

4. 

Refer to the appropriate HVAC equipment operation manual prior to installing this product.

 

5. 

Do not use on dual compressor systems.

SAFE-T-SWITCH

®

 

SS3

For primary and auxiliary drain pans

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