LCD Screen, Customizable Control Setting, Ability to Display Outdoor Temperature on Thermostat, Programmable Auxiliary Relay to Add System Versatility

Outdoor Reset or Load Reset, 0 to 10 Volt DC Output to Run Modulating Boiler, Support for 1 A/C Compressor and up to 64 Zones of Cooling

The Ability to Control 2-Temperatures with Injection Pump or Mixing Valve

Immersion Type Controllers that Combine High Limit Protection with Low Limit and Circulator Control in Forced Hydronic Heating Systems, Including Domestic Hot Water Service

Provide Multi-Zone Control by Using a Separate Circulator and R845 Relay for Each Zone

Include Diaphragm Power Head and Micro Switch Assembly that Respond to Temperature Changes in Boiler Water, Mount Directly to Boiler

Select Models Include Large Transformers and Extra Terminals for Supplying Power to Low Voltage Zone Valves

Require 24 Volt AC Thermostat with Heat Anticipator Set at 0.2 Amp (Plus Current Draw of Gas Valve on L8124E)

Tradeline Models Include Tube of Heat Conductive Compound and Range Stops

Integral Transformer Provides Low Voltage Power for Control Circuit

The RA832A is a DPST Relay, One Relay Pole is Designed for Low Voltage or Millivoltage (PowerPile) Auxiliary Load, Two Other Relay Poles are for Line Voltage Loads

Compatible with most thermostats, including power-stealing and electromechanical models

C-terminal available for every thermostat connection

The LED panel is visible and functional whether the cover is on or off, saving troubleshooting time

The gravity centered hang hole speeds mounting and the included DIN rail mounting system offers an additional option

Easy-to understand labels coded to wire colors increase installation speed and decrease the risk of errors

The covered control board reduces visual clutter and provides a surface for clear, plain language labeling

Familiar Setup-If you Know How to Install an Existing Panel, You can Install Ours Too, We Offer the Same Board Layout and Matching Functionality as Competitive Product

Status Panel -LED Panel is Visible and Functional Whether the Cover is on or off Which Gives the Installer the Ability to Quickly Troubleshoot the System Saving Time and Effort

Flex Panel Mounting - Gravity Centered Hang Hole Makes Quick Work of Mounting

Hinged Door and Quarter Turn Access Screw - Quarter Turn Access and Hinge Off Front Cover Make Access Quick and Easy While Still Providing Safety

Simple Layout Cover - Control Board is Covered to Reduce Visual Clutter and Provide a Surface on Which to Print Full Color Terminal Labels. Easy-to-Understand Labels Coded to Wire Colors will Increase Installation Speed and Decrease Errors

Familiar Setup-If you Know How to Install an Existing Panel, You can Install Ours Too, We Offer the Same Board Layout and Matching Functionality as Competitive Product

Status Panel -LED Panel is Visible and Functional Whether the Cover is on or off Which Gives the Installer the Ability to Quickly Troubleshoot the System Saving Time and Effort

Flex Panel Mounting - Gravity Centered Hang Hole Makes Quick Work of Mounting

Hinged Door and Quarter Turn Access Screw - Quarter Turn Access and Hinge Off Front Cover Make Access Quick and Easy While Still Providing Safety

Simple Layout Cover - Control Board is Covered to Reduce Visual Clutter and Provide a Surface on Which to Print Full Color Terminal Labels. Easy-to-Understand Labels Coded to Wire Colors will Increase Installation Speed and Decrease Errors

Compatible with most thermostats, including power-stealing and electromechanical models

C-terminal available for every thermostat connection

The LED panel is visible and functional whether the cover is on or off, saving troubleshooting time

The gravity centered hang hole speeds mounting and the included DIN rail mounting system offers an additional option

Easy-to understand labels coded to wire colors increase installation speed and decrease the risk of errors

The covered control board reduces visual clutter and provides a surface for clear, plain language labeling

The PA404A is a Pressure Actuated High Limit, Safety Control for Steam Heating Boilers

It Breaks an Electrical Circuit to Shut Down the Burner if Steam Pressure Rises Above a Safe Level

The PA404B is Used with Suspension-Type Unit Heaters to Make the Fan Circuit When a Pressure Rise Indicates the Presence of Steam

Each Model Contains an SPST Micro Switch Snap Acting Switch

Sensitive Pressure-Actuated Diaphragm Expands or Contracts with Pressure Variations, Moving a Lever Mechanism Which Operates the Snap Switch

A Screw on Top of the Case Allows Set Point Adjustment without Removing the Cover

Differential is Adjusted by Means of a Dial Located Inside the Case

Twist-To-Fit Universal Flange, Rotates 90 Degree to Fit Most Installations with a Single Product

Three Pump Sizes Cover Every Application

3-Speed Versatility Maximize Efficiency and Provide Sufficient Flow Rates with a Single Pump

Universal Design Replaces Wide Range of Competitive Models with Just One Brand