Braeburn 2020 Thermostat Operation Manual

The Braeburn 2020 is a programmable thermostat designed for single-stage heat/cool conventional and heat pump systems, including 250–750 millivolt heat-only systems. It features a large display, 7-day, 5-2 day, or non-programmable options, and precise temperature control, ideal for residential applications. Below are the key specifications and operation instructions.

1. Key Specifications 2. Operation Instructions 2.1. Initial Setup 2.2. Operating the Thermostat 2.3. Temperature Display Adjustment 2.4. Troubleshooting 3. Installation Instructions 3.1. Remove Old Thermostat 3.2. Installing New Thermostat 3.3. Battery Location 3.4. Power Options

Key Specifications

Type: Programmable thermostat with 7-day, 5-2 day, or non-programmable options
Compatibility:
- Single-stage heat/cool conventional and heat pump systems
- 250–750 millivolt heat-only systems
- Not compatible with multi-stage cooling beyond specifications or systems exceeding 30 VAC
Power Source:
- Battery: Two "AA" alkaline batteries (included)
- Hardwired: 18-30 VAC with common (C) wire
Electrical Rating:
- Terminal Load: 1 amp maximum per terminal
- Setpoint Range: 45°F to 90°F (7°C to 32°C)
- Accuracy: +/- 1°F (+/- 0.5°C)
Display: Large LCD display with program indicators
Operating Conditions:
- Ambient: 32°F to 105°F (0°C to 41°C)
- Humidity: 90% non-condensing max
Dimensions: 3.70” H x 5.16” W x 1.38” D
Features:
- Large easy-to-read display
- Adaptive Recovery Mode (ARM)
- Service Filter Monitor
- HOLD mode for temperature override
Thermostat Configuration Options:
- Conventional or Heat Pump systems
- Fahrenheit or Celsius display
- Gas or Electric heat

Operation Instructions

Initial Setup

1. Insert Batteries: Install two "AA" alkaline batteries, ensuring correct polarity.
2. Power On: If hardwired, connect 24 VAC to the C terminal. The display should show the current time and temperature.
3. Configure System:

Set installer switches on the back: CONV/HP for system type, F/C for temperature units, HG/HE for gas/electric heat.
Press RESET after changes.
Set time and day: Press DAY/TIME, use UP/DOWN arrows to adjust, press RETURN to save.

Operating the Thermostat

1. Select Mode: Use SYSTEM switch to choose HEAT, COOL, or OFF.
2. Adjust Temperature: Press UP/DOWN arrows to set desired temperature.
3. Programming: Press PROG to enter programming mode. Set schedules for 5-2 day (weekdays/weekends) with four events: MORN, DAY, EVE, NIGHT. Use defaults or customize temperatures and times.
4. HOLD Mode: Press HOLD to override program; select indefinite or 24-hour hold.
5. Verify Operation: In HEAT, set above room temp; "HEAT ON" displays. In COOL, set below; "COOL ON" displays.
Note: Adaptive Recovery starts heating/cooling early to reach setpoint on time.

Temperature Display Adjustment

The thermostat has +/-1°F accuracy, but no specific calibration menu is mentioned. Use a separate thermometer to verify. Relocate if near drafts or heat sources.

Troubleshooting

No Display: Check battery polarity or replace batteries. Verify 24V power if hardwired. Press RESET.
No Heat/Cool: Ensure SYSTEM mode is correct, setpoint is appropriate, power is on. Check wiring and circuit breakers. For heat pumps, verify EMER mode if applicable.
Fan Runs Constantly: Set FAN to AUTO, not ON.
Inaccurate Temperature: Ensure proper location away from drafts/heat sources.
Erratic Operation: Reset thermostat. Check for voltage issues.
Service Filter: Flashes when filter needs service; reset by pressing RETURN after changing filter.
Buttons Not Working: Replace batteries and reset.

Installation Instructions

Warning: Turn off power before installation. For experienced technicians only. Conform to local codes.

Remove Old Thermostat

Turn off power. Remove old thermostat, label wires for terminals. Handle mercury thermostats carefully and dispose properly.

Installing New Thermostat

Separate thermostat from sub-base.
Mount sub-base on wall, mark and drill holes, use anchors if needed.
Connect wires to terminals per system type (e.g., Rh for heat power, W1 for heat relay).
Set installer switches (CONV/HP, F/C, HG/HE).
Push excess wire back, plug hole with insulation to prevent drafts.
Snap thermostat onto sub-base.

Battery Location

Batteries included; compartment on back. Replace when low battery indicator shows. Use alkaline "AA" batteries.
If unoccupied for long periods, replace batteries before leaving.

Power Options

Use 24V AC for primary power with batteries as backup, or batteries only.

Thermostat Power Method	Description
Battery Powered	Runs on two "AA" batteries.
Hardwired with Battery Backup	Runs on 24V AC from transformer with batteries as backup.

Caution: Ensure correct polarity for batteries. Do not short terminals during testing.