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Installation Instructions
Condensate Safety
Overflow Switch
CS-2
Condensate Safety
Overflow Switch for
Primary Drain Pans
Cuts power to an air conditioning
system when a clog or backup
occurs, preventing water damage
STEP 1:
On The Drain Pan
Thread the threaded
bushing (3) into the
Sensor
Assembly with
Jumper Wire
drain pan outlet. Glue
the threaded bushing
(3) into the pipe elbow
Pipe Elbow
(2). Firmly press the
sensor assembly (1)
FIG. A: PRODUCT COMPONENTS
into the pipe elbow.
(Refer to FIG. A.)
STEP 2:
Ensure Sensor Tilt Threshold is Met
Do not glue the sensor assembly onto the
pipe. Ensure that the sensor is not tilted
more than 30°. (Refer to FIG. B.)
1
Proven Float
Design
4
2
30° MAX
3
X
FIG. B: SENSOR TILT
THRESHOLD
Wire Nuts
3⁄4"
Threaded
Fitting
Removable Assembly
for Easy Cleanout
Pull to Test
LED Light Indicator
STEP 3: Verifying Correct Installation
The sensor can be wired in series to break control voltage
(typically either the red or yellow wires. (Refer to FIG. C).
Max current: 1.5 amp.
Use the “Pull To Test” lever to test functionality and confirm that
LED is on when lever is up. Press down on the “Pull To Test” lever
to ensure that it is flush with the housing. (Refer to FIG. D)
Control Voltage
(Max 24VAC 1.5 A)
(Field Wiring)
To Equipment
(Field Wiring)
FIG. C: WIRING DIAGRAM
LED JUMPER
Normally
Closed
Switch
CONDENSATE DRAIN
LINE SWITCH
FIG. D: USING
“PULL TO TEST”
LEVER
SHUTDOWN TESTING MUST BE PERFORMED FOR EACH INSTALLATION TO ENSURE PROPER SWITCH OPERATION.
IMPORTANT INFORMATION REGARDING THE JUMPER WIRE
• The CS-2 uses a very small current to light the LED
• Some HVAC systems will not shut down when the CS-2 LED is illuminated
• In the event the HVAC system does not shut down when verifying installation
(Step 3), cut jumper wire and insulate both ends with either wire nuts or electrical
tape (Refer to Fig. E)
• Cutting the LED jumper will disable the LED
• Once the jumper wire is cut and insulated, repeat Step 3 by pulling the "Pull to Test"
lever again to verify proper shutdown
Control Voltage
(Max 24VAC 1.5 A)
(Field Wiring)
To Equipment
(Field Wiring)
LED JUMPER
Normally
Closed
Switch
CONDENSATE DRAIN
LINE SWITCH
FIG. E: WIRING DIAGRAM WITH CUT JUMPER WIRE
Maintenance & Troubleshooting
Algae and mold growing inside the condensate drain line can restrict the movement of the float inside the housing. It is recommended to clean the
float and housing with a mild dish soap solution and a soft or medium brush. Do not use vinegar, bleach, acetone, gasoline, or any other harsh or
corrosive chemicals to clean the float or housing. Do not use wire brushes, steel wool, or any other abrasive materials to clean the float or housing.
If the LED light indicator is illuminated and the HVAC system will not turn on, try the following:
• Check and confirm that water is flowing freely through the drain line. Clear any clogs.
• Remove the switch assembly and confirm that the float moves freely inside the housing. If algae growth has blocked the movement of the float,
clean it with a brush using a mild solution of water and dish soap.
• Press down on the “Pull To Test” lever to ensure that it is flush with the housing.
The CS-2 has an industry leading 3 year warranty. Visit our website for full warranty information: asurityhvacr.com
©2024 DiversiTech Corporation
Asurity® is a registered trademark of DiversiTech Corporation.
www.diversitech.com
0224
CONDENSATE MANAGEMENT
800.995.2222www.diversitech.com
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