Product Overview

Application
Taco Heat Motor Zone Valves provide a convenient way to
create individual zones or equipment isolation in a hydronic
heating system. Utilizing one pump along with multiple zone
valves, flow can be started, stopped, or diverted through the
system to provide individual room or area comfort control
and energy savings. Taco offers many versions and sizes of the
Heat Motor Zone Valve to meet all your zone valve needs.
Features
 •ProvenPerformance–MillionsinUse.TacoZoneValves
are the Industry’s Top Choice for Consistent Performance.
 •RuggedDependability
 •SilentOperation
 •TwistOffHead
 •BellowsorGlobeValveConstructionEnsuresPositive
Shut-offandLeakProofOperation
 •PatentedConstruction
 •EasytoInstall
 •ManualOpen(Bypass)Lever
 •24VACPoweredwithIsolatedEndSwitch
 •100%FactoryTested
 •MadeintheUSA
 •3YearHead,5YearBodyWarranty
Choose The Right Valve For Your Application
550 Series (Models 555, 556, 557)
Designed for high head capacity applications such as
high-rise residential and commercial buildings. The
heavy-duty construction allows this series of Taco Heat
Motor Zone Valves to operate up to 150 feet of pump
head.Availablein1/2”-1”sweatconnections.
Geothermal Valves (Models 5101G, 556G, 557G)
Designed for high head, open system zone control.
The unique end switch design permits control of the
heatpumpbythevalve(seefigureA).Thisallows
movement of cold water into the coil before the heat
pumpactuallystarts.Availablein3/4”threaded,3/4”
and1”sweatconnections.
560 Series (560, 561, 562)
A3-Waybypassversionofthe570GoldSeries.
This valve is used to control the flow to a fan coil
orterminalheatingunit(seefigureB).Availablein
1/2”–1”sweatconnections.
570 Gold Series (570, 571, 572, 573)
TheGoldSeriesistheindustrystandardforhydronic
heating applications. The quiet and dependable
operation has made this valve an industry leader for
decades. The manual open lever and twist off head
makes installation and service easy. Available in
1/2”–1-1/4”sweatconnections.
FigureB:560Series3-WayValvePiping
FigureA:GeothermalZoneValveWiringtoaHeatPumpControl
Mounting Positions
Thermostat
Heat Pump
Control Panel