White Rodgers 47D43-811 User's Manual

White Rodgers Home Theater Server User's Manual - 47D43-811.
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47D43-811 

Deluxe Defrost Control

INSTALLATION INSTRUCTIONS

The 47D43-811 is a microprocessor-based demand defrost 
controller intended for Rheem heat pump systems. This 
controller uses basic differential temperature means to detect 
degradation of system performance due to ice build-up on the 
outdoor coil. The controller uses “self-calibrating” principles 
to calibrate itself to the heat pump system. The defrosting is 
performed by reversing the direction of flow of refrigerant.
The 47D43-811 is meant to replace the following controllers 
in Rheem heat pump systems:

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE 
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL 
INJURY AND/OR PROPERTY DAMAGE.

Operator: Save these instructions for future use!

DESCRIPTION 

www.white-rodgers.com

www.emersonclimate.com

PART NO. 37-7199A

1047

PRECAUTIONS 

WARNING

!

•  To prevent electrical shock and/or equipment damage, 

disconnect electric power to system at main fuse or 
circuit breaker box until installation is complete. 

•  This control is not intended for use in locations where 

it  may  come  in  direct  contact  with  water.  Suitable 
protections must be provided to shield the control from 
exposure to water (dripping, spraying, rain, etc.)

•  Label all wires prior to disconnection when servicing 

controls. Wiring errors can cause improper or loss of 
heat pump operation and/or shock hazard.

•  Following installation or replacement, follow appliance 

manufacturer’s  recommended  installation/service 
instructions to insure proper operation.

•  Do not use on circuits exceeding specified voltage. 

Higher voltage will damage control and could cause 
shock or fire hazard.

If in doubt about whether your wiring is millivolt, line or low 
voltage, have it inspected by a qualified heating and air 
conditioning contractor or licensed electrician.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes 
and ordinances.
This control is a precision instrument, and should be handled 
carefully. Rough handling or distorting components could 
cause the control to malfunction.

CAUTION

!

•  This control is intended only for Rheem heat pump 

systems.

•  Replace  47D43-811  control  as  a  unit  -  no  user 

serviceable parts.

CONTENTS

Description ................................................................ 1
Precautions  ............................................................... 1
Specifications ............................................................ 2
Operation ................................................................... 2
Installation .................................................................  3      

47D43-811 Replaces

47D43-111
47D43-111
47D43-111 02
47D43-101

47-102685-04
47-102685-84
47-102685-05
47-102685-02
47-21517-22

47-21517-92
47-102684-02
47-102684-04
47-102684-07
47-102684-08

DDL-122131-2RH
DDL-122131-2RH

47D43-811

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