ACT D'MAND STS Series User manual

ACT D’MAND®SYSTEMS
STS-Series Pre-Fab Easy Installation System
For Models: STS-50T, STS-70T, STS-02T
Installation and
Operating Instructions
for existing homes with standard piping
or standard recirc piping
ACT D’MAND®Systems are manufactured using the highest quality U.S.made component
partsavailable.PDVValves (PositiveD’MAND®Valve)arebuiltintoeachD’MAND®System.
Patented, ACT, D’MAND®Electronics are the controls for each D’MAND®System. This
state-of-the-art electronics allows the D’MAND®System to accurately and automatically
adjust and shut off the system every time activated.The ACT D’MAND®Systems are the
only approved D’MAND®re-circulation product that saves both energy and water
tested by the US Department of Energy. You can look forward to over 15 years of life
expectancy with an ACT D’MAND®System.
ACT D’MAND®Systems
DESIGNED FOR TODAY...
DEDICATED TO THE FUTURE®
www.gothotwater.com
ACT, Inc. D’MAND®Systems
3176 Pullman Street, Suite 119, Costa Mesa, CA 92626
1-800-638-5863 • email: [e-mail]
-Met-001 REV 10/11
Installing The ACT D’MAND System for STS 02T
1. Check the package contents
Your ACT D’MAND®System Includes:
STS-02T MODE
• Pre-assembled STS-02T pump with built-in D’MAND®Electronics Circuit
Board, PDV Valve System (Built in check valve) and Thermistor
• Set of flanges & gaskets
• (1) push-button
STS-02T PF-R MODE
• Pre-assembled STS-02T pump with built-in D’MAND®Electronics Circuit
Board, PDV Valve System (Built in check valve) and Thermistor
• 2 Flanges
• 2 O-rings
• 2 Connection T’s
• 2 Stainless Steel Female Flex-line
• An RT-911 Remote Control Package
2. Installing the D’MAND®System
Flange Set-up
ay pump out with electrical box on top and flange fittings on each side.You will need:
2 bolts, 2 nuts, 1 flange and 1 O-ring per side. Place the small round gasket (O-Ring
Gasket) inside the groove of the pump, secure with nuts and bolts provided. Repeat
procedure on the other side of the D’MAND®System.
Follow “Installation for the S-Series Systems” on page 1 until # 6, you will have
3/4“female flex lines.
OOKING DOWN ONTO PUMP
Page 4
ACT, Inc. D’MAND®ystems will replace without charge (at the company’s option) any ACT D’MAND®pump, valve or component part which is proven defective
under normal use. Model STS-70T Series and Model STS-02T Series: Warranty-five years from date of purchase; Model S-50T: Warranty-three years from date
of purchase; Accessories: Hardwired Buttons and Remote Activators and Receivers: Warranty-one year from date of purchase. Labor is not included with
D’MAND®Limited Warranty.
In order to obtain services under this warranty, it is the responsibility of the purchaser to promptly notify the Company in writing and promptly deliver the item in question,
delivery prepaid to the factory. The address for notification and delivery is ACT, Inc. D’MAND®ystems, 3176 Pullman treet, uite 119, Costa Mesa, CA 92626. If the
product or part in question contains no defect as covered in this warranty, the purchaser will be billed for the parts and labor charges in effect at the time of factory
examination and repair.
Any D’MAND®product or part not installed or operated inconformity with D’MAND®instructions or which has been subject to misuse, misapplication, the addition
of petroleum based fluids or certain chemical additives to the system, or other abuse, will not be covered by this warranty.
ACT, Inc. D’MAND®ystems OFFER THI WARRANTY IN LIEU OF ALL OTHER EXPRE WARRANTIE . ANY WARRANTY IMPLIED BY LAW INCLUDING
WARRANTIE OF MERCHANTABILITY OR FITNE I IN EFFECT ONLY FOR THE DURATION OF THE EXPRE WARRANTY ET FORTH IN THE
PARAGRAPH ENTITLED “LIMITED WARRANTY” A HOWN ABOVE.
THE ABOVE WARRANTIE ARE IN LIEU OF ALL OTHER WARRANTIE , EXPRE OR TATUTORY, OR ANY OTHER WARRANTY OBLIGATION ON THE
PART OF ACT, INC. D’MAND®Y TEM .
ACT, INC. D’MAND®Y TEM WILL NOT BE LIABLE FOR ANY PECIAL INCIDENTAL, INDIRECT OR CON EQUENTIAL DAMAGE RE ULTING FROM
THE U E OF IT PRODUCT OR ANY INCIDENTAL CO T OF REMOVING OR REPLACING DEFECTIVE PRODUCT .
This warranty gives your specific rights, and you may have other rights which vary form state to state. ome states do not allow limitations on how long an implied warranty
lasts or on the exclusion of incidental or consequential damages, so those limitations or exclusions may not apply to you.
1.The pump does
not run when push
button is pressed
A. No power at electrical outlet
B. You’ve plugged the controller into an
electrical outlet controlled by a wall
switch, (such as the outlet under
many kitchen sinks that controls the
garbage disposal)
C. Power cord is not secured to pump
and valve
D. Wire to push button is not
connected well
E. The temperature setting is already
sensing “hot” water so the pump is
not being activated
•Plug the controller into a “hot”outlet
• Shut off power, then make sure wires
have good contact
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2. The water is not
hot enough A. Pump or valve was installed with water flow going in the wrong direction
B. There is something in the piping that
has blocked the flow of water
•Check the arrows on the housings of the
valve and pump to make sure they point in
the correct direction (see page 2)
• Check the piping for obstruction
3. There is hot
water at the cold
water tap
A. The temperature sensitivity setting
now in place is too high, so the
pump is not shutting down soon
enough
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4. Water is not hot
enough when
pump shuts down
A. The temperature sensitivity setting
now in place is too low, and the
pump is turning itself off too soon ••CCaallll 11--880000--663388--55886633
5. There is hot
water in the cold
water lines only
A. The pump is installed backwards • Reinstall the pump correctly
TROUBLESHOOTING
WARRANTY
Hot
Water
Supply
Valve
Cold
Water
Supply
Valve
H C
COLD WATER LINE
WATER
SUPPLY
Water
Heater
HOT WATER LINE
Hardwired
Button
Pump &
Controller
Existing Plumbing
Recirc ine
®
6. Pump runs
approx. 4 mins. &
stops with no hot
water present
A. Air trapped inside the pump • Remove both flexlines at the custom tees.
Fill both flexlines with water and reconnect
7. Motion sensor
not activating
pump
A. Circuit board not set to 12V inside
D’MAND®Pump • Setting must be changed
••CCaallll 11--880000--663388--55886633
130369 ACT Instruction Sheet:115433 ACT Instruction Sheet 11/4/11 2:28 PM Page 1

Installation shall be in accordance with the manufacturer's
instructions or warranty may be voided.
IMPORTANT
Operation of the D’MAND®System without being plumbed into water
lines may damage the pump and void the warranty.
Pre Installation Checklist
1. ACT D’MAND®System includes:
• Pre-assembled STS-50T or STS-70T pump with built-in D’MAND®Electronics
Circuit Board, PDV Valve System and Thermistor
• (2) Connecting T’s - (PF-Series & PF-R-Series only)
• (2) Stainless steel flex lines (PF-Series & PF-R-Series only)
• (1) Push Button
• Remote receiver, wireless transmitter, battery, wire nuts & screws (PF-R-Series only)
2. Tools you need:
• Pipe or crescent wrench
• Pliers
• Phillips and flat head screwdrivers
• Wire strippers
• Drill and 5/8 inch drill bit
3. Best location for the D’MAND®system:
• Typically, this would be at the fixture farthest away from the water heater, generally the
kitchen or master bathroom. If your hot water supply runs in two different directions
from the water heater, you may need more than one ACT D’MAND®System.
The two custom “T”’s are designed to simplify your
installation to 1/2 inch copper hot and cold supply lines. (If
you have plumbing other than copper please call our office at
800-638-5863. Additional fittings may be required).
Installation for the S Series Systems
(PF and PF R) Models STS 50T and STS 70T
1. Turn off the house water supply.
2. Open the hot and cold faucets at the fixture chosen for installation, this will relieve the
water pressure from the hot and cold water pipes.
3. Remove the shut-off valves that supply hot and cold water to the sink from the 1/2”
copper pipe. For ease of installation, leave the compression ring and nut from the angle
stop on the hot and cold water supplies.
4. Remove the compression ring and nut from the threaded side of the custom “T” and
slide them onto the other side. Attach the existing nut and ring to the end of the
threaded T and firmly tighten to copper piping from wall.
Installation for the STS Series Systems (Continued)
5. Install the shut off valve on to the 1/2”” Female compression nut on the custom tee shut
off valve, on to the 1/2” side of the PF-T and firmly tighten.
6. Now you are ready to attach flex lines from the 3/4” male thread of the PF-T’s to your
ACT D’MAND®System. (Teflon tape is recommended for the 3/4” threaded fittings.)
Tighten snug — Do not over tighten.
7. Refer to Page 3 – “Installing the D’MAND®Button(s)” and “Wireless Remote Option”.
*Additional fittings may be required if your supply lines are galvanized or plastic pipe.
Installing the ACT D’MAND System on Recirc Line
1. Install The Pump
A. Turn off the house water supply.
B. Install the pump in the hot water return line before it enters the water heater.
C. Install the pump so the raised arrows on the pump housing indicate the
direction of flow toward the inlet of the water heater. Make sure the electronic
control box is on top of the circulator pump. The control box attached to the
pump housing may be rotated on the body by removing the four screws that
connect them together - rotate housing until box is on top - then re-secure the
screws. (If pump is already installed on loop, turn off water supply and purge
line prior to rotating housing).
Pump Position
Install the pump in the horizontal position with the D’MAND®label facing up toward the
sink (as shown on Page 4). Be sure the arrow on the pump base points left to right (hot
water to cold water side) prior to connecting the flex-lines. NOTE: Use of any parts
other than the supplied D’MAND®parts, including the flex-lines, may restrict and delay
the flow of water from the water heater, and void warranty.
COMPLETING YOUR INSTALLATION
1. After installation adjustments
CHECK THE SYSTEM CAREFU Y TO MAKE SURE THE INSTA ATION IS FREE OF WATER
EAKS. All electronic sensitivity adjustments are pre-set at the factory. If adjustments are necessary
please call 1-800-638-5863 for technical support prior to making any adjustments.The sensor is
designed to signal the controller to shut off automatically when hot waterhas reached your fixture, and
not to reactivate if hot water is at the fixture. Review the troubleshooting page for additional information.
2. Try the ACT D’MAND® System and check water temperature
Once installed, turn water supply on and plug in the system. (Pump will automatically turn itself on
when it is initially plugged in without pushing the D’MAND®button). the D’MAND®System will
continue to operate until the sensor signals that hot water has arrived, then it will automatically shut
off. To test the system again, wait until pipes cool down, approximately 20-30 minutes. To operate
the D’MAND®System from another location in the home, place wireless transmitter in desired
location. Push transmitter and wait for system to cycle. You may now turn on hot water.
3. Installing the D’MAND®System Wired Button
The manual button is a unique feature to the D’MAND®System. The
“on-demand” start to the circulating pump maximizes energy
savings and controls operation only when there is a demand for hot
water as compared to automatic timer controlled systems.
A. Drill a 5/8” hole into the desired location, typically the side or
front of a vanity cabinet.
B. Insert the gray control cable from the controller through the back
side of the hole and connect black and red wires to the starter button.
C. Firmly insert the button into the drilled hole.
Note: To operate the D’MAND®System from other locations
throughout the house, additional starters can be installed and
spliced into the gray control cable provided. Or for wireless remote
operation, the transmitter/receiver kit can be easily installed. See
“WIRE ESS REMOTE KIT OPTION”below for instructions.
D. If wireless remote kit is not installed, use electrical tape or wirenuts to
isolate the three leads (black, red and green) in the black control
cable.
WIRELESS REMOTE OPTIONS – RT 911, V 1209 OR VRS
Wiring the Receiver
The remote receiver is the white rectangular box with the three protruding wires: black, red and green. Wire
the receiver directly to the corresponding wires on the controller by twisting each same colored wire
together with gray wirenuts provided. If transmitter will activate system from short distance, but not from
further away, receiver may need to be relocated for better reception.
Installing Batteries to the Transmitter
Open transmitter with a small flat head screwdriver by inserting screwdriver into slot to release catch. oad
battery with negative side of battery toward spring. Carefully replace cover. The signal frequency can be
changed. This should only be necessary when two D’MAND®Systems are in the same home or
your neighbor has the system. Call 800-638-5863 for assistance.
4. Connect D’MAND®
System, install push
button and plug in.
Unacceptable
Page 1 Page 2 Page 3
1. Turn off water
supply and
remove angle stops.
2. Install & tighten
T’s (included)
attach angle stops.
3. Install flex lines or
any line with
1/2” inside diameter.
®
RT-911 – Wireless
Transmitter V-1209 – Wired
Motion Sensor VRS-1107 – Wireless Motion Sensor VRS-0411 – Wireless Motion Sensor
130369 ACT Instruction Sheet:115433 ACT Instruction Sheet 11/4/11 2:28 PM Page 2