RDT FloodMaster RS-094-MK7 User manual

Leak Detection & Automatic Shut-Off System
for Conventional Vent Water Heaters
with Gas Shut-Off Interface Cable
Congratulations on your purchase of a FloodMaster RS-094-MK7 water heater leak detection system
from Reliance Detection Technologies. This product is designed to automatically shut off the water
supply to a water heater or tank if a leak is detected. This kit also provides the capability to cut off
the pilot light signal to shut down gas ow to the tank’s burner when a leak is detected, as may be
required by some local codes.
To ensure proper installation and to maximize the performance of your RS-094-MK7 water leak
detection system, please read this manual thoroughly before installing or operating the system.
PLEASE READ CAREFULLY BEFORE PROCEEDING:
If a leak is detected, the RS-094-MK7 will shut off the water going to the water heater. This will stop
the continuous ow of water from the water supply to the tank. However, all or some of the water
that is already in the tank may still leak out onto the oor.
NOTE: This installation and operating manual contains important information about the operation of the
RS-094-MK7 system. If this system is being installed for use by a different user, please be sure a copy of
this manual is left with the system for future reference.
www.RelianceDetection.com Toll-Free: 888-771-4929
RS-094-MK7 System Components (included in kit):
1 – Receiver box / actuator
1 – 3/4” full port lead-free shut-off valve
(NSF/ANSI 61 and 372)
1 – Power supply with 12’ lead wire
1 – Water sensor with 8’ lead wire
1 – Metal plate for sensor placement
1 – Gas shut-off interface cable
RS-094-MK7

NOTE: The RS-094-MK7 can be installed on existing or new water heater installations.
RDT recommends installation by appropriately licensed and certied installers to ensure that all
local code requirements are met.
INSTALLATION INSTRUCTIONS
1. Turn off the water supply feed line to the water heater.
2. Prior to installation, manually exercise the valve body to fully closed and back to fully open
position by holding it in your hand, applying a pliers to the valve stem and turning. Thread the valve
body into the feed water line after the manual shut-off. Apply pipe sealant or Teon®tape to the
NPT threads and tighten.
3. The receiver connector comes prewired with basic connections to the power supply, sensor and
gas shut-off interface cable. Using an appropriate screwdriver, make any additional electrical
connections as may be desired for output contacts or additional sensors per wiring Figure 2.
(Note: additional sensors can be connected to either 6 & 7 or 8 & 9, as wiring space allows.) Then
snap the terminal wiring block into the receiver housing at the mating slot provided.
4. Secure the valve body in one hand and snap the receiver into place on the valve body mounting
pad. (Note: Improper alignment of the valve stem may interfere with proper receiver mounting. If any
resistance is encountered, conrm the witness mark on the valve stem is in alignment with the valve
ports. Use an appropriate hand tool, such as pliers, to clamp down on the valve stem and turn in the
appropriate direction until the desired position is achieved).
5. Place the sensor(s) where water is most likely to rst accumulate (such as the drain pan or the
oor next to the tank). The sensor is magnetic and can be installed horizontally or vertically in
conjunction with the metal plate – see Figure 3.
• Clean the desired location area to ensure the surface is clean for optimum plate adhesion.
• Peel the backing off the metal plate to reveal the adhesive and stick in place.
• Place the sensor on the plate as close as possible to the oor, allowing the magnets to secure it
in place.
Note: The sensor features a through-hole that can be used to screw it onto a surface if a more
permanent installation is desired or necessary.
6. Shut off the gas supply and shut down the water heater per the manufacturer’s instructions.
7. Disconnect one wire from the thermocouple on the water heater. Connect the female 1/4” spade
connector (white wire) to the thermocouple switch. Connect the male 1/4” spade connector (black
wire) to the system wire that was previously disconnected.
8. Plug the power supply into a 120V AC wall outlet. The green “Power” indicator light on the receiver
will turn on.
9. Turn on the gas supply and light the pilot on the water heater per the water heater manufacturer’s
instructions. Open the water supply feed line.
10. Function Test the system as follows:
• Place the sensor on a wet paper towel. The audible alarm will sound and the valve will rotate to
the closed position. The shut-off interface cable will also respond to close down the gas ow to
the water tank.
• The red “Valve Closed” LED will turn on when the valve is completely closed (approximately
45-second cycle time). Open a hot water faucet and conrm that there is no water ow. Conrm
deactivation of the gas.
• Remove the sensor from the paper towel, dry the contact points, and place it back in the desired
location on the metal plate.
• Press and release the “Reset” button on the receiver to open the valve and begin the ow
of water again (approximately 45 seconds to fully re-open). The green “Power” indicator light will
ash once to indicate the reset process has begun. Relight the water heater pilot and conrm
gas ow to the water heater.
• Open a hot water faucet and inspect for water ow.

RS-094-MK7
WATER
HEATER KIT
1. Receiver box
2. Valve Closed LED
3. Power LED
4. Wiring terminal block
5. Reset button
6. Valve actuator
7. Water sensor
8. Metal plate
9. Shut-off valve
10. Power transformer
11. Gas shut-off interface
cable spade connectors
4
3 5
3.0
3.1
1.53.0
1.4
2.5
.4
1.4
1.11.350
4.9
1FRONT VIEW BACK VIEW
2
6
2.56
Ø .12 THRU
1.77
.02
1.48
1.69
8 FT LEAD
.30
.04
PIN OFFSET
FROM SURFACE
Ø .25 .30
Ø .38 x 82°
7
8
9
See RS-094 technical data submittal
sheet for valve dimensions.
FIGURE 2 –
WIRING DIAGRAM
FIGURE 3 –
SENSOR INSTALLATION OPTIONS
11
POWER SUPPLY
RS-094
123456789
1/4” MALE SPADE
(BLACK WIRE)
1/4” FEMALE SP
ADE
(WHITE WIRE)
FIGURE 1
KIT PREWIRED AT FACTORY
1.89
12 FT LEAD
10
.855
.855
.373
.487
.522 MAX
TOTAL
WIDTH
.409 MAX
TOTAL
WIDTH
MALE
FEMALE
HORIZONTAL VERTICAL

All specications subject to change without notice.
© Copyright 2020 Reliance Detection Technologies, LLC – A Madison Company
ECN # 11386, 09/2020, MF110, RevB
203-488-2684 or 888-771-4929
[email protected]
www.RelianceDetection.com
27 Business Park Drive, Branford, CT 06405
NEED INSTALLATION OR SETUP ASSISTANCE?
Call toll-free: 888-771-4929
www.RelianceDetection.com/support/RS-094
Warning: For use with water only. Do not install on gas line. Never install this device
on a re protection or re suppression system. For indoor use only.
OUTPUT SIGNAL CONNECTIONS
The unit also provides output signal capabilities (SPDT Relay Output Contact) for connection to a home
security panel or for use with an appropriate relay to control a secondary device, such as a pump. See
Figure 2 for wiring diagram.
Normally Closed Circuit – Terminal Pins 3 & 4 Normally Open Circuit – Terminal Pins 4 & 5
OPERATION & SYSTEM RESET
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 ow of water and gas again. The green “Power” indicator light on
the receiver will ash once to conrm the reset. Light the water heater pilot and conrm gas ow to the
water heater.
MAINTENANCE
Test the system annually per the function test (install step 10) to ensure correct operation and maintain
product warranty status. At a minimum, exercise (press and release) the “Reset” button on the receiver.
EMERGENCY MANUAL VALVE OPERATION
The unit is equipped with an emergency feature for the manual rotation of the valve. Disengage the
actuator from the valve and manually changing the valve to open or closed as follows:
1. Turn off the main power to the transformer.
2. Stabilize the water feed line by grabbing it in one hand near the valve. While grasping the actuator
housing in the other hand, pull the actuator housing away from the water feed line.
3.
Using an appropriate hand tool (such as a pliers), clamp down on valve stem and turn in the appropriate
direction until the desired position is achieved. Note the top of the stem is slotted to indicate valve
position (in line with water ow indicates open valve; slot across water line indicates closed).
4. Before remounting the actuator, return the valve to the original position prior to the manual rotation.
5. Remount the actuator and restore the main power to the transformer.
6. Test for correct operation per the function test listed in install step 10.