Taco Comfort Solutions Hot-LinkPlus HLPE-1 User manual

Application:
The Taco Hot-LinkPlusTM System for Domestic Hot Water
recirculation ensures instant hot water comfort at showers
and faucets. By supplying fresh hot water to the fixtures
while returning the “cooled” hot water back to the water
heater through the cold line, it also saves thousands of gal-
lons of wasted water per year. The average family can
achieve yearly savings of up to 12,000 gallons of water nor-
mally wasted down the drain while waiting for hot water.
High Quality Features:
The Hot-LinkPlus System includes a Taco circulator des-
igned specifically for use with the Taco Hot-Link Valve. The
circulator and valve are suitable for most residential homes
with hot water supply lines up to 100 feet.
The unique Hot-Link Valve is the key to the system. Made
of durable high temperature polymer, it creates an easy-to-
install return loop through the cold line from the furthest fix-
ture back to the water heater. An integral thermal sensor
disc closes when hot water reaches the valve. An internal
flow check prevents cold water from backing into the hot
line. Stainless steel braided flex hoses complete the instal-
lation.
Installing the Hot-LinkPlus System Circulator:
1. Follow all local plumbing and electrical codes when
installing the Hot-LinkPlus System.
2. Shut off cold water supply valve to water heater.
3. pen a hot water faucet in the house to drain the hot
water line.
4. pen water heater drain valve located at the bottom of
tank to drain remaining hot water from the lines. It is not
necessary to drain the entire tank.
5. Disconnect hot water supply line at water heater outlet
nipple.
6. Install one 3⁄4" tailpiece of the union adapter provided to
the water heater outlet. Apply pipe dope or Teflon tape
to all male threads as required.
7. Install the other 3⁄4" union tailpiece to the pump inlet
connection. Be sure flow arrow located on the pump
casing is in the proper direction. See diagram.
8. Install the stainless steel Hot-LinkPlus circulator by
connecting the union halves. Circulator motor must be
in the horizontal position.
9. Reconnect the hot water supply line to circulator outlet.
10. pen supply valve to water heater. Let water run until all
air is purged from lines. Check for any leaks. If leaks are
detected, close supply valve and tighten all connections.
11. Shut off open hot water faucet.
Instruction Sheet
Hot-LinkPlusTM System for Domestic Hot Water Recirculation
102-507
SUPERSEDES: New EFFECTIVE: August 25, 2015
Plant ID# 001-4239
CAUTION: Do not run circulator dry.
Permanent damage may result and will void
warranty.
CITY WATER
SUPPLY
Cold
Additional Hot-LinkPlus
Valve locations
Hot
Cold
Inlet
Water
Heater
HOT WATER LINE
A typical
installation
with a
Mixing Valve
Hot-LinkPlus
Circulator
COLD WATER LINE
ColdHot
The best location
is furthest xture
from hot water heater
Shut-O
Valve
Shut-O
Valve
1/2"
1/2"
Use (2) existing 3/8" x 1/2"
female to female ex lines
(2) new 1/2" x 1/2"
Taco® supplied ex lines
(female to female)
Hot-LinkPlus includes (2)
plastic wall anchors
and screws
DIAGRAM IS FOR
DEMONSTRATION ONLY
TM
Hot-LinkPlus
Circulator
DIAGRAM IS FOR
DEMONSTRATION ONLY
WARNING: To avoid electrical shock, disconnect the
power supply to the circulator and the main
electrical unit.
WARNING: 1. Circulator must e installed on and support-
ed y the circulation piping.
2. The addition of unions on oth the suction
and discharge side of the circulator is
recommended. A Taco resource – saving product

Prepare the Hot-LinkPlus Circulator for Operation:
PUMP CONTROL OPTIONS:
The circulator has a “Mode Select” toggle switch that allows
for 2 operation modes. “Pulse” or “Smart” mode can be
selected using the toggle switch located on the capacitor
base mounted electronic control board (See Fig. 1). A yel-
low LED indicates which mode is selected. All operation is
automatic, no manual timer or temperature setting is
required.
• “Pulse Mo e”
When set for “Pulse” operation,
the circulator will run for 5 min-
utes every 10 minutes to main-
tain hot water at all fixtures.
• “Smart/Learn” Mo e
When set for “Smart/Learn”
operation, the circulator will
run in “Pulse” mode as above
for the first 7 days. During this
time, the circulator will monitor
and record the home’s hot
water usage pattern. For the
next 7 days, the circulator will
then use the preceding week’s
usage pattern to cycle the
pump. This process will be repeated every 7 days. The
pump will run in “Pulse” mode from 1 hour before to 1 hour
after each recorded hot water demand.
1. The circulator is shipped from the factory in “Smart”
mode. To switch the pump to “Pulse” mode, remove the
2 capacitor cover screws and cover. Change the posi
tion of the toggle switch on the circuit board to “Pulse”
(see Fig.1 ). Install the capacitor cover and secure the
2 screws.
2. Plug the external temperature sensor connector pro-
vided into the the ”TEMP SENS R” receptacle on the
side of the capacitor base. Attach the sensor to the hot
water supply pipe downstream of the pump using the
black zip-tie connector provided.
3. nce the system is filled and air is purged, plug in the
circulator power cord.
N TE: The temperature sensor must be installed and
connected in either “Pulse” or “Smart” mode.
N TE: The circulator must be installed and supported
by the circulation piping.
WARNING: All local plumbing an electrical co es
shoul be followe when installing this pro uct.
WARNING: Risk of electrical shock. This pump is sup-
plie with a groun ing con uctor an groun ing-type
attachment plug. To re uce the risk of shock, be cer-
tain that it is connecte only to a properly groun e
groun ing-type receptacle.
CAUTION: Do not plug in the circulator power cor until
the system is fille with water an purge of air.
THER SPECIAL FEATURES F THE Hot-LinkPlus
CIRCULAT R:
1. Vacation Function - If no hot water usage is detected for
36 hours, the pump will remain off until hot water
usage is detected. nce detected, the pump will
resume operation.
2. Exercise Function - While in vacation mode, the pump
will come on every 7 days and run for 10 seconds
to prevent corrosion or scale buildup.
3. Power Outage - When power is restored, pump will
revert to its mode setting, either “Pulse” or “Smart.”
If in “Smart” mode, previously recorded data will not
be saved and the pump will begin a new 7-day
usage learning cycle.
4. LED - The circulator is provided with 3 LED’s located
on the side of the capacitor base.
Green LED - Illuminated - Power on.
Yellow LED - Flashing - Pump in “Pulse” mode.
Illuminated (not flashing) - Pump is in “Smart” mode.
Red LED - LED off - Sensor is connected properly.
LED flashes once every 5 seconds - Shorted sensor.
LED flashes twice every 5 seconds - pen sensor.
Installing the Hot-Link Valve:
1. Select the hot water faucet furthest from the water
heater. If your plumbing system branches in two differ-
ent directions, another Hot-Link Valve may need to be
installed at the end of each run.
2. Shut off the hot and cold angle stop valves below the
sink.
3. pen the hot and cold faucets to purge water from the
lines.
CAUTION: Do not use pipe dope or teflon
tape on the valve ody threads.

4. Disconnect the hot and cold flex hoses from the 1⁄2"
faucet connections beneath the sink and reconnect
them to the respective hot and cold inlet ports on the
Hot-Link Valve. Locate the flow arrows on the side of
the valve to verify flow direction.
5. Install the 1⁄2" x 1⁄2" flex hoses provided. Connect one
hose to the hot outlet of the valve and the hot water
connection on the faucet (left side). Connect the second
flex hose to the cold outlet of the valve and the cold
water connection on the faucet (right side).
6. When all connections are made, open angle stop
valves and check for leaks.
7. Attach the Hot-Link Valve to the wall using anchor
screws provided.
Note: The can be disassembled for service and cleaning.
Repeat steps number 2 and 3. Unthread the valve stem
from the body and clean internal screen of debris. Reattach
valve stem securely to prevent leaks. pen angle stop
valves and check for leaks.
CAUTION: Use caution when attaching flex
hoses to the Hot-Link Valve to prevent cross-
threading or stripping of the threads.
Hot
Shut-O
Valve
Shut-O
Valve
1/2” Male
(2) New 1/2”x1/2”
Taco® supplied ex lines
(female x female)
Use (2) existing female
x female ex lines
1/2” Male
Hot-Link® includes (2)
plastic wall anchors
&screws
Cold
1/2”
3/8” Male 3/8” Male
1/2”
HOT COLD
Hot-LinkPlus Trou le Shooting
SYMPTOM POSSIBLE CAUSE SERVICE TIP
No Hot Water
Clogged filter screen.
• Close angle stop valves beneath sink.
• pen hot and cold faucets to drain line of
pressure.
• Remove valve stem, thoroughly clean
screen, replace, open angle stop valves
and check operation.
Pump installed incorrectly. • Check to see if flow arrow on pump casing
is in correct direction.
Pump not running.
• Check circuit breaker.
• Check power supply outlet.
• Check to ensure pump sensor is installed
correctly
• Check to ensure green LED on pump is on
Hoses connected incorrectly. • Check to see if flex hoses are connected to
proper Hot/Cold ports on valve.
Abundance of Hot Water in Cold
Line
Note: It is normal for some warm
water to be in cold line during recir-
culation cycle.
If unable to flush the hot water from the
cold line by running the cold faucet, it
may indicate that the valve is damaged.
• Replace valve.
Water is too Hot Hot-LinkPlus system has improved
delivery of hot water.
• Install mixing valve on water heater outlet.
See piping schematic on page 1.

LIMITED WARRANTY STATEMENT
Taco, Inc. will repair or replace without charge
(at the company’s option) any Taco 00 Series cir-
culator or circulator part which is proven defec-
tive 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 distribu-
tor. For assistance on warranty returns, the pur-
chaser may either contact the local Taco stock-
ing distributor or Taco. If the subject product or
part contains no defect as covered in this war-
ranty, the purchaser will be billed for parts and
labor charges in effect at time of factory exami-
nation and repair.
Any Taco product or part not installed or operated
in conformity with Taco instructions or which has
been subject to misuse, misapplication, the addi-
tion of petroleum-based fluids or certain chemi-
cal 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 (401-942-8000).
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 INCIDENTAL
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 conse-
quential damages, so these limitations or exclu-
sions may not apply to you.