RectorSeal AQUAGUARD AG-1250E Installation Instructions

WORK SAFE, READ THIS
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 warranty.
Remove electrical shock hazard – DISCONNECT THE POWER TO THE HVAC UNIT BEFORE INSTALLING
THE AQUAGUARD AG-3150E/75E to avoid electrical shock and/or equipment damage. Do not use on circuits
exceeding 24 VAC to avoid damage to sensor, shock or fire hazard.
The AG-3150E/75E must be installed in accordance with manufacturer's instructions. The
NOTICE NOTICE
AG-3150E/75E must be installed in accordance with all applicable local plumbing, drainage and electrical codes.
In some situations the sensor may cause the unit to rapidly cycle on and off as water level rises
NOTICE NOTICE
slowly in pan. After a brief period the HVAC unit will turn off completely. Condensation drain must be serviced
if this occurs.
In any installation where property damage and/or personal injury might result from an inoperative
NOTICE NOTICE
sensor due to power outages, a back-up system(s) and /or alarm should be installed.
The AG-3150E/75E must only be installed by a licensed contractor. Condensation pan must be
NOTICE NOTICE
properly maintained after installation and be kept free of foreign matter, rust or other obstructions that might
interfere with the proper operation of the AG-3150E/75E.
If sensor is exposed to cleaning solution or has dirty probes, it may not allow the HVAC to function
NOTICE NOTICE
properly. If such, remove probe sensor and/or secondary pan sensor, clean, and dry.
This device must be installed in accordance with manufacturer's instructions. This unit must be in
STOP/READ
accordance with all applicable local plumbing, drainage and electrical codes.
1. In HVAC Unit locate HVAC Power wire going to "Wall Thermostat", (Typically RED).
Break/Disconnect 24VAC Power wire going to "Wall Thermostat".
A. Connect "RED", "Input 24VAC (Hot)" and "Gray" "Common" wire of AG3150E/75E to 24VAC (Hot) secondary side of 24VAC
Transformer.
B. Connect "Purple", "Normally Closed" wire of AG3150E/75E to Thermostat's "R" Terminal wire.
NOTE: "Purple" wire must be connected to "Thermostat". Maximum capacity 24VAC/5Amp.
C. Connect "BLACK", "Input: 24VAC (Common)" wire of AG3150E/75E to 24VAC (COMMON) secondary side of 24VAC Transformer or
Thermostat's "C"Terminal.
D. Optional: Connect "WHITE", "Normally Open" wire of AG3150E/75E to the "WHITE" wire of AquaGuard, AG-9100 External Alarm
or Home Alarm System, or Communicating System, etc... If not used, wire nut and tape.
NOTE: "WHITE", "Normally Open" wire maximum capacity, 24VAC/1Amp.
2. Test the AG-3150E/75E Sensors (At start-up check initial amperage load) while the HVAC unit is on and functioning correctly.
See installation section.
*Note:
Probe Wire Not Included
On Model AG-1250E
1. In HVAC Unit locate Compressor wire going to "Wall Thermostat", (Typically YELLOW).
Break/Disconnect Compressor wire going to "Wall Thermostat".
A. Connect typically "YELLOW" wire, going to "Wall Thermostat" to "Gray" "Common" wires of AG-3150E/75E.
B. Connect "Purple", "Normally Closed" wire of AG-3150E/75E to Compressor's typically "YELLOW" wire going to compressor.
NOTE: "Purple" wire must be connected to Compressor "YELLOW" wire. Maximum capacity 24VAC/5Amp.
C. Connect "RED", "Input: 24 VAC (HOT)" wire of AG-3150E/75E to 24VAC (HOT) of 24 VAC Transformer or Thermostat's "R"Terminal.
D. Connect "BLACK", "Input: 24VAC (Common) wire of AG-3150E/75E to 24VAC (Common) secondary side of 24VAC Transformer or
Thermostat's "C" terminal.
E. Optional: Connect "WHITE", "Normally Open" wire of AG-3150E/75E to the "WHITE" wire of AquaGuard, AG-9100 External
Alarm or Home Alarm System, or Communicating System, etc... If not used, wire nut and tape.
NOTE: "WHITE", "Normally Open" wire maximum capacity, 24VAC/1Amp.
2. Test the AG-3150E/75E Sensors (At start-up check initial amperage load) while the HVAC unit is on and functioning correctly.
See installation section.
NOTE: When the AG-3150E/75E is wired correctly, (ONLY) the Compressor unit will shut-off upon condensate detection.
Air Handler will continue to run.
NOTE: For communicating HVAC systems, refer to equipment manufacturers recommendations for specific wiring instructions.
Installation of the AG-3150E/75E:
(To ensure proper performance of product, instructions must be followed).
1. Couple the probe sensor and the AG-3150E/75E Secondary Pan Sensor using the one-way connector (fig. 4)
2. Test the AG-3150E/75E: thread the probe sensor on the secondary drain line on the primary pan. Plug the condensate line
and fill the primary drain pan with water. If sensor has been installed properly, the HVAC unit will stop running and LED will
illuminate (time delay up to 1 min ON / 5 min OFF). Using two wetted fingers, simultaneously touch the two metal contacts
on the back of the AG-3150E/75E Secondary Pan sensor (fig. 5). If sensor has been installed properly, the HVAC unit will stop
running and LED will illuminate (time delay up to 1 min ON / 5 min OFF).
3. After testing the probe sensor, uncouple the one-way connector to facilitate installation of the AG-3150E/75E Secondary
Pan Sensor.
4. Clean desired mounting area with included alcohol pad.
5. Using the adhesive pad or mounting clips provided with the AG-3150E/75E, affix the mounting base in the lowest point of the pan
within 25" of the secondary drain port (fig. 2) and snap AG-3150E/75E Secondary Pan Sensor into mounting base.
Note: If not using a secondary drain pan, AG-3150E/75E Secondary Pan Sensor may be mounted to the side of the HVAC unit
using the adhesive pad or mounting clips. (fig.3)
6. Some units have a plastic piece that extends beyond the drain hole opening which will prevent the probe sensor from sealing
properly into the auxiliary drain port. If this is the case, refer to step 7. Otherwise refer to step 8.
7. Thread the adapter fitting (fig. 7) into an available auxiliary drain port of the primary drain pan. Tighten with pliers to ensure a
proper seal, remove the O-ring from the probe, and replace with the flat washer (included). Thread the probe sensor into the
adapter ensuring that it has been seated properly.
Note: Over tightening will cause rubber O-ring/washer to bulge out leading to potential leaks.
8. Thread the probe sensor into an available auxiliary drain port of the primary drain pan (fig. 8). Ensure the probe sensor is above
the dam and make sure that the seal has been seated properly (fig. 2).
9. Re-couple the one-way connector (fig. 4). HVAC system should now be operational.
10. Place the included WARNING sticker on HVAC unit in a clearly visible location (fig. 9).
11. Test the HVAC unit by plugging the condensate line and filling the primary drain pan with water. If AG-3150E/75E has been installed
properly, the HVAC unit will shut down prior to the pan overflowing. Check for leaks (time delay up to 1 min ON / 5 min OFF).
Adapter:
Potential uses.
1. See Steps 6 & 7 of Installation section.
2. In the event the Probe Sensor encounters interference during installation use adapter ( works best with Non-Dammed drain).
Make sure to remove the O-ring from the probe, and replace with the flat washer (included).
probe sensor
(mounted to the side of unit)
(fig. 2)
probe sensor O-ring
(fig. 4)
ring shaped contact at
end of sensor
(fig. 6)
Unit is equipped with an AquaGuard condensate shut-off sensor. If A/C unit is not
operating, check for condensate in drain pan or tray. Inspect, clean and test the
device every 30 days and following each cleaning of the drain line.
R50118-0223
(fig. 9)
Specifications:
Relay normally closed contact 5 Amps @ 24VAC - Red to Purple; Relay normally open contact 1 Amp @ 24VAC - Red to White.
Limited Warranty
For more information on our product
limited warranty, visit RectorSeal.com
Manufactured by
RectorSeal, LLC
2601 Spenwick Drive  Houston, TX 77055, USA  800-231-3345  Fax 800-441-0051 
A CSW Industrials Company. RectorSeal, the logos and other trademarks are property of RectorSeal, LLC, its affiliates or its licensors and are protected by
copyright, trademark and other intellectual property laws, and may not be used without permission. RectorSeal reserves the right to change specifications
without prior notice. ©2023 RectorSeal. All rights reserved. U.S. Patents 7,744,395; 8,151,580; 8,561,417; 8,578,770 R50118-0823 Made in China.
Dual electronic condensate sensor and probe sensor with time delay
STANDARD WIRING DIAGRAM
FOR BREAKING "WALL THERMOSTAT" POWER WIRE
AG-1250E, AG-3150E, AG-3175E, AG-3180E, AG-4200E
OPTIONAL WIRING DIAGRAM
FOR BREAKING COMPRESSOR WIRE
AG-1250E, AG-3150E, AG-3175E, AG-3180E, AG-4200E
FOR CONNECTING TO SENSOR PORT
(A) NORMALLY CLOSED SIGNAL
AG-1250E, AG-3150E, AG-3175E, AG-3180E, AG-4200E
AG-3150E/75E secondary
pan sensor
(inside secondary pan)
flat washer
(fig. 7)
I N STA L L AT I O N I N ST R U C T I O N S
AQUAGUARD
COMPRESSOR
24 VAC
(Common)
24 VAC
(Hot)
AG-3150E/75E secondary
pan sensor
(fig. 3)
one way connector
O-ring
to auxilary drain port
(fig. 8)
moisture detection LED AG-3150E/75E secondary pan sensor
(fig. 10)
24 Volt AC, 5 Amp, GP,
Use in CLass 2
(Thermostat) Circuit Only
3150 E/75E
®
metal contacts
adhesive pad
(fig. 5)
AG-3150E/75E
secondary pan sensor
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