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Enhanced Switching Relay
The Best Choice for All Your Zoning Needs
With advanced timer and boiler functions, external diagnostic lights, switchable priority and contractor-friendly PC board layouts.
 
Hydro Air Fan Control
The Ideal Interface Between Thermostat and Air Handler
Use the Taco Hydro Air Fan Control to increase year-round comfort and operating efficiency in your systems.
 
PC 605 Series
Priority Protection Plug-In Card
Solid-state Taco Priority Protection Plug-In Card helps prevent freeze-ups in the event of a priority zone failure.
 
PC705
Variable Speed Pump Mixing Control
Use to regulate the supply water temperature to a heating system by simultaneously controlling a boiler and the speed of an injection pump
 
Standard Zone Valve Controls
Simplify Wiring for 2-, 3-, or 4-Wire Zone Valves
The easy-to-follow PC board layout eliminates the problems caused by incorrect wiring.
 
 
Enhanced Zone Valve Controls
Simplify the Wiring Nightmare
Easy-to follow PC board layout eliminates the problems caused by incorrect wiring, while external indicator lights provide instant diagnostic feedback.
 
LTR Series
Low Water Cutoff
The LTR is a probe-style, one-piece, sealed design for use with residential hot water boilers.
 
PC 610 Series
Pump Exercise Plug-In Card
The Taco Pump Exercise Plug-In Card is a solid-state, universal timer designed to cycle all the pumps that are attached to the Expandable Switching Relay(s) at selected time intervals.
 
Priority Zoning Circulator
PC Board-Mounted Switching Relay Package
Reliability of the 00 circulator, the convenience of a PC board-mounted switching relay
 
 
FuelMizer
SR501-OR-4 Boiler Reset Control
Designed to regulate the supply water temperature of a single boiler, based on the outdoor temperature, this microprocessor-based control is a boiler reset control and switching relay in one unit.
 
PC 600 Series
Post Purge Timer Plug-In Card
Solid-state Taco Post Purge Plug-In Card maintains power to the circulator once the priority zone is satisfied, but does not fire the boiler.
 
PC702
Two Stage Boiler Reset Control
Use this microprocessor-based control to regulate the supply water temperature from a two-stage boiler system based on the outdoor temperature or domestic hot water requirements.
 
Standard Switching Relays
Customized Control
Clearly-labeled layouts and advanced features allow complete customization of your systems.