47D40-801

Demand Defrost Control

INSTALLATION INSTRUCTIONS

Operator: Save these instructions for future use!

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

The 47D40-801 control 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” prin- ciples to calibrate to the heat pump system. The defrosting is performed by reversing the refrigerant direction of flow.

The 47D40-801 is meant to replace the following controllers in Rheem heat pump systems:

47-21517-16

47-21517-82

DDL-013102-1RH

47-21517-17

47-21517-88

DDL-017002-2RH

47-21517-18

47-102685-01

DDL-017102-1RH

47-21517-23

47-102685-03

DDL-017702-1RH

47-21517-24

47-102684-01

DDL-117702-3RH

47-21517-11

47-102684-03

DDL-013002-0RH

47-21517-14

47-102684-83

DDL-013002-1RH

47-21517-13

 

 

 

 

 

DESCRIPTION

47D40-801

PRECAUTIONS

!CAUTION

This control is intended only for Rheem heat pump systems.

Replace 47D40-801 control as a unit - no user service- able parts.

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.

 

CONTENTS

Description

1

Precautions

1

Specifications

2

Operation

2

Installation

3

!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.

 

PART NO. 37-7200A

www.white-rodgers.com

 

www.emersonclimate.com

1039

Page 1
Image 1
White Rodgers 47D40-801 installation instructions Description, Precautions, Contents

47D40-801 specifications

The White Rodgers 47D40-801 is a robust and versatile digital thermostat designed for residential heating and cooling systems. This model exemplifies reliability and user-friendliness, making it a popular choice among homeowners and HVAC professionals alike. One of the standout features of the 47D40-801 is its ability to control multi-stage heating and cooling systems, which provides enhanced comfort and energy efficiency.

One of the primary technologies integrated into the White Rodgers 47D40-801 is its Digital Display. The easy-to-read LCD screen allows users to quickly assess the current temperature, set temperature, and overall system operation with clarity. The display also features backlighting, making it usable in various lighting conditions. In addition to its visual capabilities, the thermostat includes a built-in temperature sensor, ensuring accurate readings for more precise climate control.

The unit supports advanced programming capabilities, allowing homeowners to set up custom schedules for different times of the day or week. This feature not only optimizes comfort but also enhances energy savings by reducing heating and cooling when it is not needed. Users can select from different modes, such as heating, cooling, and auto changeover, ensuring that the home remains comfortable throughout the year.

Another notable characteristic is its compatibility with a variety of HVAC systems, including conventional and heat pump systems, which broadens its appeal to many users. The 47D40-801 also comes with built-in Wi-Fi connectivity options, allowing for remote control through compatible smart devices. This feature enables homeowners to make adjustments from anywhere, ensuring their space remains comfortable upon their arrival.

In terms of installation, the White Rodgers 47D40-801 is designed for easy setup, featuring color-coded wiring and a user-friendly manual. Additionally, it boasts a battery backup that maintains settings even during power outages, ensuring reliability.

In conclusion, the White Rodgers 47D40-801 thermostat stands out due to its combination of advanced features, user-friendly interface, and compatibility with a wide range of HVAC systems. With its programmable capabilities and modern technologies, it serves as an excellent choice for those looking to enhance their home's comfort while maintaining energy efficiency. Whether for a new installation or a replacement, this thermostat promises reliability and performance.