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FOR CONVENTIONAL PLUG-IN POWER-VENT GAS WATER HEATERS

Operation and Installation Instructions for FloodMaster  

RS-094 Water Heater Leak Detection Alarm/Shut-Off  

Systems with Electrical Plug Interrupter

The RS-094 series of Feed Water (Water Heater) Leak Detection and Shut-Off Systems 

is designed to monitor and respond immediately to water leaks. When a sensor comes 

in contact with as little as a 1/16” of water (or any other conductive liquid), it will 

automatically sound an audible alarm and close the valve to shut down the water feed 

line, thus mitigating damage caused by an undetected water leak. This kit also provides 

output signal capabilities to automatically kill electricity to the Water Heater Power Vent 

when a leak is detected. 

Installation of this device should only be performed by appropriately licensed and certified installers.

OPERATION:

In the event the system activates, locate the source of the leak, remove the sensor from the water and dry the metal contacts on the 

bottom. Correct the problem causing the leak and replace the sensor in the desired leak detection location once again as required. Press 

and release the reset button on the receiver to open the valve and begin the flow of water again. The green Power indicator light on the 

receiver will flash once to confirm the reset.

Installation Manual

RS-094-MK4

All specifications are subject to change without notice.

27 Business Park Drive, Branford, CT 06405  

   Tel: 203-488-2684  

   Fax: 203-481-5036  

   [email protected]

Reliance Detection Technologies, LLC

    RelianceDetection.com    888-771-4929 

ECN # 9508, 03/2016, MF105, REV A

INSTALLATION INSTRUCTIONS:

(FloodMaster recommends that installations be completed by a licensed plumber to ensure that all local code requirements are followed).

1.  Turn off the water supply feed line to the water heater. Confirm that the Power-Vent Water Heater is unplugged  

from the electrical supply.

2.  Thread the valve body into the feed water line after the manual shut-off. Apply pipe sealant or Teflon

®

 tape  

to the NPT threads and tighten.  

3.  The receiver connector comes pre-wired with basic connections to the power supply, sensor and electrical plug 

interrupter. Using an appropriate screwdriver, make any additional electrical connections as may be desired for 

output contacts or additional sensors per the diagram provided. 

(Note: Additional sensors can be connected to  

either 6 & 7 or 8 & 9, as wiring space allows.) 

Snap the terminal wiring block into the receiver housing at the  

mating slot provided.

POWER

SUPPLY

RS-094

1 2 3 4 5 6 7 8 9

1 2

For use in dry locations only. Always unplug the relay module 

before servicing or installation. For continued protection against 

electric shock, plug into grounded outlets only and do not remove 

the ground pin.

DANGER – Risque d’électrocution
À utiliser dans des endroits secs uniquement. Toujours débrancher 

le module de relais avant l’entretien ou l’installation. Pour une 

protection continue contre l’électrocution, uniquement brancher à 

des prises mises à la terre et ne pas retirer la broche de terre.

DANGER – Electrocution Hazard

RS-094-MK4 Kit Pre-Wired at the Factory

(Continued – See reverse.)

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