Braeburn 2000NC User Manual

MODEL
2000NC
USER MANUAL
Builder Series
5-2 Day Programmable
Single Stage Heat/Cool
Digital Thermostat
Compatible with low voltage single stage gas, oil
or electric heating or cooling systems, including
single stage heat pumps. This thermostat can
also be used on 250mv to 750mv millivolt heating
only systems. Do not use this thermostat on
applications with voltages above 30 Volts AC.
READ ALL INSTRUCTIONS BEFORE PROCEEDING
CONTENTS
WARNING!
Important Safety Information
SPECIFICATIONS
INSTALLATION
TESTING YOUR NEW THERMOSTAT
PROGRAMMING
1
2
3
4
5
6
7
• Always turn off power to the air conditioning or heating system prior to installing,
removing, cleaning or servicing thermostat.
• Read this manual thoroughly prior to installing, programming or operating
this thermostat.
• This thermostat is designed for use with a 24 Volt-AC low voltage single stage
gas, oil or electric heating or cooling systems.
• Do not use this thermostat on applications with voltages above 30 Volts AC.
• This thermostat requires two (2) properly installed "AA" alkaline batteries to
provide power for the thermostat to properly control the system operation.
• Wiring must conform to all building codes and ordinances as required by local and
national code authorities having jurisdiction.
• Do not short (or jumper) across terminals on the gas valve or at the heating or
cooling system control board to test the thermostat installation. This could
damage the thermostat and void the warranty.
• Do not select COOL mode of operation if the outside temperature is below 50˚ F
(10˚ C). This could possibly damage the controlled cooling system and may cause
personal injury.
• This thermostat should only be used as described in this manual. Any other use is
not recommended and will void the warranty.
SPECIFICATIONS
1
1
4. After labeling and removing all wires from terminals, unscrew the existing
thermostat sub-base from wall. Be sure to secure wires to prevent them from
slipping back into the hole in the wall.
NOTE: This thermostat is designed for use with a 24 Volt AC low voltage single
stage gas, oil or electric heating or cooling systems, including single stage heat
pumps. This thermostat can also be used on 250mv to 750mv millivolt heating only
systems. Do not use this thermostat on applications with voltages above 30 Volts AC.
2.2
Installing Your New Thermostat
NOTE: If you are installing this thermostat in a new installation be sure to locate
the thermostat 4 to 5 feet above the floor in accordance with applicable building
codes. Be sure to install the thermostat in a location that provides good airflow
characteristics and avoid areas behind doors, near corners, air vents, direct sunlight
or near any heat generating device. Installation in any of these areas could impact
thermostat performance.
1. Always turn off power to the air conditioning or heating system prior to installing
your new thermostat.
2. Place system switch on front of thermostat to the OFF position.
3. Place fan control switch on front of thermostat to the AUTO position.
4. Remove front of thermostat body from sub-base by pressing release latch on bottom
of front body.
5. Place the thermostat sub-base against wall in the desired thermostat location.
• Electrical Rating: 24 Volt AC (18-30 Volt AC)
1 amp maximum load per terminal
2 amp total maximum load (all terminals)
• Control Range: 45˚ - 90˚ F (7˚ - 32˚ C)
• Accuracy: +/- 1˚ F (+/- .5˚ C)
• DC Power: 3.0 Volt DC (2 AA Alkaline batteries included)
• Compatibility: Compatible with low voltage single stage gas, oil or electric
heating or cooling systems, including single stage heat pumps. This thermostat
can also be used on 250mv to 750mv millivolt heating only systems.
• Terminations: Rc, Rh, O/B, Y, W, G
INSTALLATION
2
2.1
Replacing Existing Thermostat
1. Always turn off power to the air conditioning or heating system prior to
removing existing thermostat.
2. Remove the cover of your old thermostat and locate the wire terminals.
Do not remove wires from terminals yet.
3. Using small pieces of masking tape, label wires prior to removal from terminals.
Use the chart below to determine the new terminal designations for your
new thermostat.
Old Terminal from New Terminal for
Existing Thermostat New Thermostat Terminal Description
V or Rc Rc Cooling Transformer
M, 4, Rh, or R Rh Heating Transformer
B or O O/B Reversing Valve (Cooling or Heating)
Y Y Cooling Control
H, W or 4 W Heating Control
G or F G Fan Control
C None-Cap the wire 24 Volt AC, Transformer Common
ADDITIONAL OPERATION FEATURES
TROUBLESHOOTING
WIRING DIAGRAMS
®

Braeburn 2000NC Specifications

General

Type	Non-Programmable Thermostat
Stages	1 Heat / 1 Cool
Programmability	Non-Programmable
Backlight	No
Temperature Swing	Adjustable
Mounting	Wall Mount
Power Source	24VAC
Display	LCD
Temperature Range	45°F to 90°F (7°C to 32°C)
Compatibility	Single Stage Heat/Cool Systems

Summary

Specifications

Electrical Rating

Details the electrical specifications for the thermostat, including voltage and amp loads.

Control Range and Accuracy

Specifies the operating temperature range and accuracy of the thermostat.

DC Power and Compatibility

Outlines the battery requirements and system compatibility of the thermostat.

Terminal Designations

Lists the terminal designations available on the thermostat for wiring connections.

Installation

Replacing Existing Thermostat

Provides step-by-step instructions for removing an old thermostat and preparing for installation.

Installing Your New Thermostat

Guides the user through the physical installation process of the new thermostat.

Important Safety Information

General Safety Precautions

Essential safety guidelines to follow before, during, and after thermostat installation and operation.

Testing Your New Thermostat

Testing Safety Warnings

Critical safety warnings to observe before testing the thermostat installation.

Thermostat System Testing

Step-by-step instructions to verify the correct operation of the heating, cooling, and fan systems.

Programming

Default Thermostat Settings

Lists the default settings for various thermostat functions after a reset.

Setting Current Time and Day

Instructions on how to accurately set the current time and day for program execution.

Setting Temperature Differential

Explains how to adjust the temperature difference that triggers heating or cooling cycles.

Setting Extended Hold Time

Details how to set a temporary or permanent hold for the current setpoint temperature.

Setting Filter Check Monitor

Instructions for configuring the filter replacement reminder feature.

Setting Energy Saving Programs

Provides guidance and default program settings for energy efficiency.

Programming Overview

Explains the structure of weekday and weekend programming groups.

Additional Operation Features

Reviewing Set Temperature

How to view the current setpoint temperature on the thermostat.

Temporary Program Override

How to temporarily change the setpoint temperature without altering the program.

Extended Hold (Vacation) Mode

How to engage a permanent or timed hold on the current setpoint.

Compressor Protection Feature

Explanation of the automatic delay feature to protect the compressor.

Low Battery Detection and Replacement

How the thermostat indicates low batteries and how to replace them.

Adaptive Recovery Mode (ARM)

Explains the feature that gradually reaches setpoints for comfort and efficiency.

Filter Check Monitor Feature

Details the feature that reminds users to replace or clean the air filter.

Troubleshooting

Troubleshooting: System Not Starting

Solutions for when the thermostat fails to activate the heating or cooling system.

Troubleshooting: Incorrect System Activation

Addresses issues where the thermostat activates the wrong system mode.

Troubleshooting: Program Setpoints Not Followed

Helps diagnose why the thermostat isn't adhering to programmed schedules.

Troubleshooting: System Cycling Frequency

Solutions for frequent or infrequent system cycling.

Troubleshooting: Low Battery Indicator

Explains what to do when the low battery indicator appears on the display.

Troubleshooting: 'OFF' Display and No Start

Troubleshooting steps when the thermostat shows 'OFF' and the system won't start.

Troubleshooting: Blank Display

Solutions for a blank thermostat display, often related to battery issues.

Troubleshooting: 'HI' Temperature Display

Explains the meaning of the 'HI' display and how to resolve it.

Troubleshooting: 'LO' Temperature Display

Explains the meaning of the 'LO' display and how to resolve it.

Troubleshooting: Set Point Upper Limit

Information regarding the upper limit for programming setpoint temperatures.

Troubleshooting: Set Point Lower Limit

Information regarding the lower limit for programming setpoint temperatures.

Troubleshooting: Continuous Fan Operation

Troubleshooting steps when the system fan runs constantly.

Troubleshooting: Room Temperature Inaccuracy

Addresses situations where the room temperature is not as expected.

Troubleshooting: Premature System Activation

Explains why the system might turn on prematurely.

Wiring Diagrams

Wiring Diagrams: 2-Wire Systems

Illustrates wiring configurations for 2-wire millivolt and 24V AC heating systems.

Wiring Diagrams: 4-Wire Systems

Shows wiring for 4-wire single transformer heating and cooling systems.

Wiring Diagrams: 5-Wire Systems

Depicts wiring for 5-wire two transformer heating and cooling systems.

Wiring Diagrams: Heat Pump Systems

Provides wiring diagrams specific to single stage heat pump installations.