Application:
The Taco
HLS-2 Hot-Link
®
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 gallons 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-Link System
includes a high performance
Stainless Steel 00 circulator with a pre-wired power cord
and programmable 24 hour timer. This circulator is suitable
for most residential homes with hot supply lines up to 150
feet in length.
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-Link System Circulator:
1. Follow all local plumbing and electrical codes when
installing the
Hot-Link System
.
2. Shut off cold water supply valve to water heater.
3. Open a hot water faucet in the house to drain the hot
water line.
4. Open 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
3
⁄
4
" female tailpiece and union nut to the water
heater outlet. Apply pipe dope or Teflon tape to all male
threads as required.
7. Install the
3
⁄
4
" male union tailpiece and union nut to the
pump outlet connection. Be sure flow arrow located on
the pump casing is in the proper direction. See diagram.
8. Install the
Hot-Link
circulator by attaching the inlet to
the tailpiece and union nut on water heater outlet.
Circulator motor must be in the horizontal position.
9. Reconnect the hot water supply line to circulator
3
⁄
4
"
male outlet.
10. Open 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
HLS-2 Hot-Link
®
System for Domestic Hot Water Recirculation
102-514
SUPERSEDES: NEW
EFFECTIVE: October 30, 2015
Plant ID# 001-4255
CAUTION: Do not run circulator dry.
Permanent damage may result and will void
warranty.
CITY WATER
SUPPLY
Cold
Additional Hot-Link®
Valve Locations
Hot
Cold
Inlet
Water
Heater
HOT WATER LINE
A Typical
Installation
with a
Mixing Valve
Hot-Link®
Circulator
COLD WATER LINE
Cold
Hot
The Best Location
is furthest fixture
from Hot Water Heater
Shut-Off
Valve
Shut-Off
Valve
1/2"
1/2"
Use (2) existing 3/8" x 1/2"
female to female flex lines
(2) new 1/2" x 1/2"
Taco® supplied flex lines
(female to female)
Hot-Link® includes (2)
plastic wall anchors
and screws
Hot-Link®
Circulator
Mixing Valve
(optional)
WARNING: To avoid electrical shock, disconnect the
power supply to the circulator and the main
electrical unit.
WARNING: Circulator must be installed on and supported
by the circulation piping.
A Taco resource – saving product
