Provides reliable back-up protection for temperature controlling thermostats

Incorporates Temperature Adjustment to Match Existing Setting

Time Start Fan Control for Heat Assist

Time Delay Turns ON Blower as Function of Time and Temperature after Call for Heat

Turns Off Blower as a Function of Temperature at Dial Setting for Fan

Adjustable Furnace Temperature Limit to Match Existing Setting

Time Delay Turns on Blower as Function of Time and Temperature after Call for Heat

Turns OFF Blower as a Function of Temperature at Dial Setting for Fan

Adjustable Fan Off Setting

Adjustable Differential Setting

Adjustable Furnace Temperature Limit to Match Existing Setting

Adjustable Temperature Setting

Time Delay Turns on Blower as Function of Time and Temperature after Call for Heat

Turns OFF Blower as a Function of Temperature at Dial Setting for Fan

Slotted Mounting Holes for Easy Installation

Long Terminal Screws for Wiring Junctions Can be Made on Terminal Block

Dial has Individual Pointers for Fan Cut-In and Cut-Out Settings

Removable Solid Copper Jumper between Fan and Limit Switches

Summer Fan Switch for Ventilation without Changing Control Settings has Same Fan and Limit Switch Mechanism

Slotted Mounting Holes for Easy Installation

Long Terminal Screws for Wiring Junctions Can be Made on Terminal Block

Dial has Individual Pointers for Fan Cut-In and Cut-Out Settings

Removable Solid Copper Jumper between Fan and Limit Switches

Summer Fan Switch for Ventilation without Changing Control Settings has Same Fan and Limit Switch Mechanism