Emerson White-Rodgers 50F06-843 Fan Timer Control User Manual

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50F06-843 Universal Furnace
Electronic Fan Timer

Product Launch – Fall 2019

22

Introducing
WHITE-ROGERS Newest Universal Replacement Control

What is an Electronic Fan Timer Control?

A Non-Integrated Control Board that utilizes
an internal timer to turn the Furnace Blower
Fan on through a timing sequence rather
than a temperature sensing device.

Blower functions that are completed through
an electronic timer on the Board are:

• Heat Fan Speed

• Cool Fan Speed

• Continuous Fan Circulation Speed

The 50F06-843 can also initiate the Inducer Fan
and monitor Furnace operation*

*Note: Level of control depends upon model being replaced.

Easy to Install, Easy to Configure, Easy to Diagnose

The White-Rodgers 50F06-843 Fan Timer Control

✓

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Non-Integrated Furnace Electronic Fan Timer

What is “Non-Integrated”?

A Non-Integrated Control is a
partial control that connects
to another for complete
operation.

The 50F06-843 will Integrate
with any one of these 3 types
of Ignition Controls for
complete Furnace operation:

• Direct Spark Ignition Control

• Hot Surface Ignition Control

• Intelligent Gas Valve Control

The Timer controls the Fan
Blower while providing Safety
Circuits* to monitor Pressure
Switch Safeties, Temperature
Limit Safeties, Blower Failure,
and Voltage Fluctuations.

*Note: Level of features depends upon model

being replaced.

PLUS +

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Fan Timer History

Era of Fan Timer Controls Manufactured in Furnaces

ICP produced >2M furnaces

from 1994 to 2006. During this

period they manufactured

Furnaces using a Fan Timer

Control and SmartValve™ .

1935 1968 1988 1990 2006

Mechanical

temperature switches

are used to control

when the blower

turns on/off.

Hamilton Standard

Controls, Inc. – A

division of UTC,

patents a Furnace

Blower Control that

uses a microprocessor

to time the fan blower

on & off instead of a

temperature sensing

control.

An electric fan to

distribute the heated

air through ductwork
of a coal fired furnace

within the home is

patented.

A fully Integrated

Furnace control that

controls the gas valve,

gas ignition, flame

sensing, blower fan

operation, induced

draft sensing, & limit

functions is patented

by Hamilton Standard

Controls, Inc.

Furnaces with non-

integraded controls no

longer manufactured

Fenwal introduces an

Intermittent Spark

ignition system to

replace Standing Pilot

Systems. Other

companies follow

over the next couple

of years.

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Universal Fan Timer Application

Where all can this be

used?

The 50F06-843 has been
cross to over 150 board
numbers.

References are listed on
the outside of the box
packaging.

White-Rodgers gives you

over 150 cross-references

compared to Brand X

which only list 48

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Easy to Install Mounting Options

• The raised molded

base provides space
between board and
unit mounting plate.

• 6 mounting holes

designed to match
the board being
replaced give
multiple options for
alternate mounting.

• Mounting screws are

provided for multiple
options.

– 4x ¼”x1”, and 2x

¼”x½”

We match mounting holes

of existing boards that are

not matched by other

brand replacements.

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Multiple ID Terminal Labels

• On some Terminals

multiple identifiers are
Silkscreened on the
board. All cross-over
boards are identified
and referenced on
each Terminal, making
it easy for correct
placement of wires.

Only White-Rodgers gives

all previous version

Terminal Identifier Labels