Braeburn 6425 Programmable Thermostat Product Specifications

: October 30, 2023
: Braeburn

Table of Contents

Braeburn 6425 Programmable Thermostat
Features
Terminal Designations
Product Speciﬁcations
Shipping Information
Accessories
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Download This Manual (PDF format)

Braeburn 6425 Programmable Thermostat

Features

7 Day, 5-2 Day or Non-Programmable
Large 12 sq. in. Easy-Read Touchscreen
Auto or Manual Changeover
Bright Blue Backlight Display
Humidiﬁcation Control
Dehumidiﬁcation Control with Overcooling
Adjustable Over Cooling Limits
®SpeedBar Multi-Function Button
Residential or Commercial Modes
Adjustable Temperature Limits
Indoor or Outdoor Remote Sensing
SpeedSet Programming
Programmable and Circulating Fan Modes
Auxiliary Heat Fossil Fuel Option
Hardwire or Battery Power
Multi-Level Keypad Lockout
Auxiliary “A” Terminal for Economizer, Fresh Air or Output Control
Trilingual Packaging and Instruction Card with FREE Contractor Branding

Note As a licensee in the Energy Aware Programmable Thermostat Program, Braeburn Systems LLC has determined that this product meets the NEMA Energy Aware efﬁciency speciﬁcations for programmable thermostats. Visit www.getenergyaware for more information.
FREE Color Contractor Branding! Visit www.braeburnonline.com

Terminal Designations

Architectural Speciﬁcations
The universal auto changeover thermostat shall be a Braeburn®, model number 6425, 4.13” high x 6.13” wide x 1.38” deep, powered with either 24 Volt AC or with two “AA” Alkaline batteries (3.0 Volt DC). In the event of a power failure, the unit shall retain all user, installer, and program settings. The thermostat shall be compatible with low voltage single stage or multi-stage gas, oil, or electric conventional heating or cooling systems, up to three stages of heating and two stages of cooling, and heat pump systems with up to four stages of heating and two stages of cooling. Also compatible with 250mv – 750mv millivolt heating only systems. The thermostat shall have a bright blue backlight display, touchscreen with SpeedBar®, separate sub-base and multi- level keypad lockout. Temperature control range shall be between 45° and 90° F (7° and 32° C), accuracy of +/- 1° F (+/- .5° C). Operating humidity range between 5% and 95% relative humidity. The thermostat shall include separate installer and user setup modes, residential or commercial setup modes, permanent non-volatile memory to retain user settings, ﬁlter, UV and humidiﬁer pad check monitor, adaptive recovery mode (ARMTM ), programmable independent fan control, humidiﬁcation and dehumidiﬁcation control, residual cooling fan delay, indoor or outdoor remote sensor capability, auxiliary heat fossil fuel programming, and compressor power outage protection. A front reset button will return user settings to default values when pressed. Meets Energy Aware® Guidelines.

Product Speciﬁcations

Dimensions: 4.13” x 6.13” x 1.38”
Electric Rating: 24 Volt AC (18-30 Volt AC) 1 amp maximum load per terminal 8 amp total maximum load (all terminals)
AC Power: 18-30 Volt AC
DC Power: 3.0 Volts DC (2 “AA” Alkaline batteries included)
Compatibility: Heat pump systems up to 4 heat/2 cool, Conventional systems up to 3 heat/2 cool 250mv – 750mv millivolt heating systems
Control Range: 45° to 90° F (7° to 32° C)
Display Range: 40° to 99° F (5° to 37° C)
Accuracy: +/- 1° F (+/- .5° C)
Temperature
- Differential: 1st Stage – .5°, 1°, or 2° F (0.2°, 0.5°, or 1° C)
- 2nd, 3rd and 4th Stage – 1°, 2°, 3°, 4°, 5°, or 6° F (.5°, 1°, 1.5°, 2°, 2.5°, or 3° C)
Storage Temperature: 14° to 140° F (-10° to 60° C)
Operating Humidity: 5% to 95% Relative Humidity
Terminations: A/D, H, G, Rc, Rh, W2/AUX2, W3/O/B, Y1, Y2, W1/E/AUX1, C, L, S1, S2

Shipping Information

INDIVIDUAL CARTON

Dimensions: 6.8” x 4.7” x 2.0”
Weight: 1.2 lbs.

MASTER CARTON

Quantity: 6
Dimensions: 14.3” x 6.6” x 5.4”
Cubic Feet: .26
Weight: 8 lbs.

Braeburn 6425 Replaces
Honeywell® TH8320, TH8321
Emerson® 1F95-1277, 1F95-1280, 1F95-1291, 1F97-1277

Note: Verify specific application requirements. All trademarks are the property of their respective owners.

Accessories

2920 Vertical J-Box Adapter Wall Plate (6.5” x 5.1“)
2950 Universal Wall Plate (6.5” x 6.5”)
5970 Universal Thermostat Guard
5390 Remote Indoor Sensor
5490 Remote Outdoor Sensor

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Visit our website (www.braeburnonline.com) for more information, contact your
local distributor or call our sales department toll-free at 866.268.5599 (U.S.), or +1.630.844.1968 (Outside the U.S.).

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