Taco 571 2 Zone Valve Wiring Diagram: A Comprehensive Guide

Installing a Taco 571 2 Zone Valve can be a daunting task, but with the right diagram and proper wiring techniques, it can be made much easier. In this guide, we will provide you with a step-by-step process for wiring a Taco 571 2 Zone Valve, along with some Frequently Asked Questions and a helpful table summarizing the components of the valve. So, let’s get started!

What is a Taco 571 2 Zone Valve?

The Taco 571 2 Zone Valve is a hydronic heating system valve that is designed to control the flow of hot water or steam in two separate zones. This is particularly useful in homes or buildings with multiple heating zones, as it allows for independent zone control and more efficient heating.

The Taco 571 2 Zone Valve is a reliable and efficient valve that is easy to install and maintain. It is compatible with a variety of thermostats and control systems, making it a versatile option for many heating applications.

Wiring the Taco 571 2 Zone Valve

Before getting started with the wiring process, it is important to gather all the required components and tools. Here is a list of the materials you will need:

Component Quantity
Taco 571 2 Zone Valve 2
Thermostat 2
Transformer 1
Relay 1
Wire strippers 1
Wire nuts 4

Once you have all the required components and tools, you can start with the wiring process. Here is a step-by-step guide:

Step 1: Turn off the Power

Before handling any electrical wires or components, make sure to turn off the power to your heating system at the circuit breaker.

Step 2: Mount the Zone Valves

Mount the two Taco 571 2 Zone Valves onto their respective zones. Make sure to label the valves and zones for easy identification later.

Step 3: Mount the Transformer

Mount the transformer onto the wall near the heating system. Connect the transformer’s hot and neutral wires to a power supply, and connect the transformer’s 24-volt output wires to the two zone valves.

Step 4: Wire the Thermostats

Wire the two thermostats to their respective zones. Connect the thermostat’s R and W wires to the corresponding zone valve’s T and T terminals. Make sure to use wire nuts to secure the connections.

Step 5: Wire the Relay

Wire the relay to the transformer and the two zone valves. Connect one of the relay’s 24-volt input wires to the transformer’s 24-volt output wire, and connect the other input wire to the first zone valve’s 24-volt input wire. Connect one of the relay’s output wires to the second zone valve’s 24-volt input wire, and connect the other output wire to the transformer’s common wire.

Step 6: Turn on the Power

Once all the wiring is complete, turn on the power to your heating system at the circuit breaker. Your Taco 571 2 Zone Valve should now be fully functional and able to control the flow of hot water or steam in both zones.

Frequently Asked Questions

1. What is the difference between a Taco 571 and a Taco 571-2?

The Taco 571 is a single-zone valve, whereas the Taco 571-2 is a dual-zone valve that can control the flow of hot water or steam in two separate zones.

2. Can the Taco 571 2 Zone Valve be used with any type of heating system?

Yes, the Taco 571 2 Zone Valve is compatible with a variety of heating systems, including hot water and steam systems.

3. Can the Taco 571 2 Zone Valve be used with any type of thermostat?

Yes, the Taco 571 2 Zone Valve is compatible with most low-voltage thermostats.

4. How many wires do I need to connect to the Taco 571 2 Zone Valve?

You will need to connect three wires to each valve: a common wire (C), a hot wire (H), and a wire that connects to the thermostat (T).

5. Can the Taco 571 2 Zone Valve be installed by a DIYer?

Yes, the Taco 571 2 Zone Valve is designed to be easy to install and can be installed by a DIYer with basic electrical skills.