Taco ON COMMAND 006-CT-USK User manual

Pre-Fab Easy Installation For
Models: 00 -CT-USK, 008-CT-USK
Installation and Operating Instructions
for Existing Homes with Standard Piping
Plant I.D. 001-1024 EFFECTIVE: July 1, 2013
102-140
Taco®On Command is manufactured using the highest quality component
parts available. Patented Integral Flow Checks (IFC) are built into each On
Command pump to prevent cold water from entering the hot water line. State-
of-the-art electronics allow the On Command to accurately sense temperature
and automatically shut off the pump to maximize comfort and energy savings.
On Command saves energy and water. You can look forward to over 15 years
of life expectancy with a Taco On Command.
taco-hvac.com
A Tac res urce – saving pr duct

Installation shall be in accordance with the manufacturer’s
instructions or warranty may be voided.
IMPORTANT
Operation of the Taco On Command without being plumbed into water lines may dam-
age the pump and void the warranty.
2. Tools you need:
• Pipe or crescent wrench • Phillips and flat head screwdrivers
• Plier • Drill and 5⁄inch drill bit
• Wire strippers
3. Best location for the Taco On Command:
Typically, this would be at the fixture farthest away from the water heater, generally the
kitchen or master bath room. If your hot water supply runs in two different directions
from the water heater, you may need more than one Taco On Command.
PUMP POSITION
Pump should always be installed in a horizontal
position (as shown) with On Command capacitor
box facing up toward the sink. Be sure arrow on
pump casing is pointing from left to right (hot water
to cold water side) prior to connecting the flex lines.
N te: T’s and flex lines supplied by Tac pr vide
maximum fl w and perf rmance. Alternative
plumbing parts may restrict fl w and delay h t
water t fixtures.
WARNING: In the event the retaining screws have been pulled out of the hous-
ing, DO NOT replace them. Use of any other screw may short out
the stator windings, creating a risk of electrical shock.
WARNING: To avoid electrical shock, disconnect the power supply to the cir-
culator and the main electrical unit.
CAUTION: When installing electrical connections, do not apply mechanical
loads to the capacitor box; otherwise, retaining screws may be
pulled out of the housing, making circulator unusable.
PRE-INSTALLATION CHECKLIST
1. Taco On Command includes:
• Models 006-CT/006-CT-USK,
00 -CT/00 -CT-USK
• “00” Cartridge circulating pump
with built-in On Command
Electronics, power cord, Integral
Flow Check (IFC) and mounting
bracket
• Starter button
• Set of two (2) 1⁄2" plumbing
adapter tees (included with
“USK” models only)
• Set of two (2) 1⁄2" stainless steel
flex lines (included with “USK”
models only)

ELECTRICAL SUPPLY
A 110V electrical supply outlet is required to power the On Command unit. If an outlet
is not available, install a 110V outlet in accordance with all local electrical codes.
Cauti n: D n t plug in the On C mmand until all plumbing and wiring c nnecti ns
are c mpleted and water supply is turned n. Running the circulating pump without
water may damage internal components and void warranty.
PLUMBING INSTRUCTIONS USING USK- PLUMBING ADAPTER KIT
1. Turn off the house water supply at the main shut-off valve.
2. Open hot and cold faucets at the fixture chosen for installation. This will relieve water
pressure from the hot and cold water lines.
3. Remove the hot and cold shut-off valve angle stops
from the 1⁄2" copper pipes located below the sink. Be
sure to use a catch basin to drain water from hot and
cold lines. Warning: T prevent scalding, use cauti n
when rem ving valve n h t water line. For ease of
installation, leave the existing compression ring and nut
from the angle stops on the hot and cold water lines.
4. Remove the compression ring and nut from the adapter
tees provided and slide on to opposite straight copper
end. Attach the existing nut and ring to the threaded
end of the tee and tighten firmly.
5. Connect the shut-off valves to the new compression
ring and nut and tighten firmly.
6. Attach the stainless steel flex lines to the 1⁄2" threaded
connection on the tees and the 1⁄2" threaded connec-
tions on the pump. Teflon tape is recommended for the
1⁄2" threaded fittings.
INSTALLATION FOR THE CT-SERIES ON
COMMAND MODELS 006-CT-USK AND 008-
CT-USK
The two custom adapter “T”s are designed to sim-
plify your installation to 1⁄2inch copper hot and cold
supply lines. If you have plumbing other than as
shown in these instructions, additional fittings may
be required. Consult a plumbing professional.
1. Turn off water supply and
remove angle stops.
2. Install tees and attach angle
stops.
4. Connect flex lines to pump.
3. Connect flex lines to tees.

INSTALLING THE ON COMMAND STARTER BUTTON
The manual starter button is a unique feature to the On Command. The “on-command”
start to the circulating pump maximizes energy savings and controls operation only when
there is a request for hot water as compared to automatic timer controlled systems.
1. Drill a 5⁄" hole into the desired location, typically the side or
front of a vanity cabinet.
2. Insert the gray wire from the controller through the back side of
the hole and connect it to the starter button.
3. Firmly insert the button into the drilled hole.
Note: To operate the On Command from other locations
throughout the house, additional starters can be installed and
spliced into the gray wire provided. Or for wireless remote
operation, the Taco #554-1 transmitter/receiver kit can be eas-
ily installed. See “WIRELESS REMOTE KIT OPTION” below for
instructions.
4. If wireless remote kit is not installed, use electrical tape or wire nuts to isolate the
three leads (black, white and green) on the black wire.
COMPLETING YOUR INSTALLATION
1. Turn on the water supply at the main. Check the system carefully for possible leaks.
If leaks occur, check all compression and threaded connections and tighten firmly.
Open hot and cold fixtures for one to two minutes to flush system completely.
2. Plug in the On Command to the 110V electrical outlet. The pump will start automatical-
ly the first time only and run for a short time until a rise in temperature is detected by
the thermal sensor. Pump will automatically shut off. Note: When the On Command
is operating a green LED located on the pump motor housing will illuminate.
The Green LED will only be “on” when the pump is activated and circulating
water.
3. To test manual starter button, wait for hot water temperature to cool below 100°F
(approximately 20-30 minutes). Press starter button to operate the pump. The On
Command should run for a short time and shut off automatically as in step 2 above.
4. Check hot water at the fixture for desired temperature. If hot water temperature is
not satisfactory, refer to Trouble Shooting checklist section.
WIRELESS REMOTE KIT OPTION MODEL #554-1
Wiring the Receiver:
The optional remote receiver kit is the white rectangular box with
the three protruding wires (black, white and green). Batteries are
not required. Wire the receiver directly to the corresponding wires
on the controller by twisting each same colored wire together with
gray wirenuts provided. Receiver should be mounted toward front
of cabinet. (Range of transmitter is about 70'.) If transmitter will
activate pump from short distance, but not from further away,
receiver may need to be relocated for better reception. Strapping
receiver to front of drain trap facing outward will optimize reception.
Installing Batteries to the Transmitter:
Open transmitter by inserting a small flathead screwdriver into slot to release catch.
Load battery with negative side of battery toward spring. Carefully replace cover.
Numbered jumper pins are inside the transmitter and receiver. The signal frequency can
be changed by removing the same numbered pins from both the receiver and transmit-
ter. This should only be necessary when two On Command pumps are in the same
home or neighboring homes.
For Additional Wireless Transmitter Buttons use Model #554-2.

TROUBLESHOOTING DIAGNOSING SPECIFIC PROBLEMS
PROBLEM POSSIBLE CAUSE REMEDY
1. The pump does
not run when push
button is pressed.
Green LED does
not illuminate.
A. No power at electrical outlet
B. You’ve plugged the controller
into an electrical outlet con-
trolled by a wall switch, (such
as the outlet under many
kitchen sinks that controls the
garbage disposal.)
• Plug the controller into a “hot”
outlet
2. The water is not
hot enough.
A. Pump 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 pump
casing to make sure they point in
the correct direction (see page 2)
• Check the piping for obstruc-
tion
3. There is hot water
at the cold water
tap.
A. The water temperature sensor
is loose or dislodged
B. The temperature sensitivity set-
ting now in place is too low, so
the pump is not shutting down
soon enough
• Check the connection of the
water temperature sensor to
make sure it is firmly attached
to the plug and casing
• Call 1-401-942- 000 for reset
information
4. Water is not hot
enough when
pump shuts down.
A. The temperature sensitivity set-
ting now in place is too high,
and the pump is turning itself
off too soon
• Call 1-401-942- 000 for reset
information
5. There is hot water
in the cold water
lines only
A. The pump is installed back-
wards
• Reinstall the pump correctly
C. Power cord is not secured to
pump
D. Wire to push button is not con-
nected well
E. The temperature setting is
already sensing “hot” water so
the pump is not being activated
• Call 1-401-942- 000 to reset
sensitivity setting
• Shut off power, then make sure
wires have good contact

LIMITED WARRANTY STATEMENT
Taco, Inc. will repair or replace without charge
(at the company’s option) any Taco 00 Series
circulator or circulator part which is proven
defective under normal use within three (3)
years from the date of manufacture.
In order to obtain service under this warranty, it
is the responsibility of the purchaser to promptly
notify the local Taco stocking distributor or Taco
in writing and promptly deliver the subject
product or part, delivery prepaid, to the stocking
distributor. For assistance on warranty returns,
the purchaser may either contact the local Taco
stocking distributor or Taco. If the subject prod-
uct or part contains no defect as covered in this
warranty, the purchaser will be billed for parts
and labor charges in effect at time of factory
examination and repair.
Any Taco product or part not installed or operat-
ed in conformity with Taco instructions or which
has been subject to misuse, misapplication, the
addition of petroleum-based fluids or certain
chemical additives to the systems, or other
abuse, will not be covered by this warranty.
If in doubt as to whether a particular substance
is suitable for use with a Taco product or part,
or for any application restrictions, consult the
applicable Taco instruction sheets or contact
Taco at (401-942- 000).
Taco reserves the right to provide replacement
products and parts which are substantially similar
in design and functionally equivalent to the
defective product or part. Taco reserves the right
to make changes in details of design, construc-
tion, or arrangement of materials of its products
without notification.
TACO OFFERS THIS WARRANTY IN LIEU OF
ALL OTHER EXPRESS WARRANTIES. ANY
WARRANTY IMPLIED BY LAW INCLUDING
WARRANTIES OF MERCHANTABILITY OR
FITNESS IS IN EFFECT ONLY FOR THE DURA-
TION OF THE EXPRESS WARRANTY SET
FORTH IN THE FIRST PARAGRAPH ABOVE.
THE ABOVE WARRANTIES ARE IN LIEU OF
ALL OTHER WARRANTIES, EXPRESS OR
STATUTORY, OR ANY OTHER WARRANTY
OBLIGATION ON THE PART OF TACO.
TACO WILL NOT BE LIABLE FOR ANY SPE-
CIAL, INCIDENTAL, INDIRECT OR CONSE-
QUENTIAL DAMAGES RESULTING FROM
THE USE OF ITS PRODUCTS OR ANY INCI-
DENTAL COSTS OF REMOVING OR
REPLACING DEFECTIVE PRODUCTS.
This warranty gives the purchaser specific
rights, and the purchaser may have other rights
which vary from state to state. Some states do
not allow limitations on how long an implied
warranty lasts or on the exclusion of incidental
or consequential damages, so these limitations
or exclusions may not apply to you.
TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: [phone] FAX: [phone]
TACO (Canada), Ltd., 450 Lawson Road, Unit #3, Milton, Ontario L9T 0J
Telephone: [phone] FAX: [phone]
Visit our web site at: http://www.taco-hvac.com
Printed in USA
Copyright 2013
TACO, Inc.