Braeburn 2000NC Thermostat Operation Manual

The Braeburn 2000NC 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 with bright blue backlight, 5-2 day programming, 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: 5-2 day programmable thermostat
Compatibility:
- Single-stage heat/cool conventional and heat pump systems
- 250–750 millivolt heat-only systems
- Not compatible with multi-stage systems 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, 2 amp total
- Setpoint Range: 45°F to 90°F (7°C to 32°C)
- Accuracy: +/- 1°F (+/- 0.5°C)
Display: Large LCD display with bright blue backlight
Operating Conditions:
- Ambient: 32°F to 105°F (0°C to 41°C)
- Humidity: 5% to 95% non-condensing
Dimensions: 3.72” H x 4.75” W x 1.12” D
Features:
- Large easy-to-read display with backlight
- Adaptive Recovery Mode (ARM™)
- Filter check monitor
- HOLD mode for temperature override
- Compressor short cycle protection
- Non-volatile memory retains settings
Thermostat Configuration Options:
- Conventional or heat pump systems
- Fahrenheit or Celsius display
- Gas or electric heat
- Adjustable differentials and limits

Operation Instructions

Initial Setup

1. Insert Batteries: Install two "AA" alkaline batteries in the front compartment, ensuring correct polarity.
2. Power On: If hardwired, connect 18-30 VAC to the C terminal. The display should show the current time and temperature.
3. Configure System:

Set internal switches: NORM/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. Fan Mode: Use FAN switch to choose AUTO or ON.
3. Adjust Temperature: Press UP/DOWN arrows to set desired temperature.
4. 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.
5. HOLD Mode: Press HOLD to override program; select indefinite or 24-hour hold.
6. Verify Operation: In HEAT, set above room temp; HEAT flashes. In COOL, set below; COOL flashes. Adaptive Recovery starts early to reach setpoint.
Note: Filter reminder flashes when due; reset after changing.

Temperature Display Adjustment

Hold RETURN for 4 seconds to access user settings. Adjust temperature differential (0.5°F, 1°F, 2°F). Use a separate thermometer to verify accuracy. 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 mode is correct, setpoint appropriate, power on. Check wiring, breakers. If icon flashes but no operation, contact contractor.
Fan Runs Constantly: Set FAN to AUTO, not ON.
Inaccurate Temperature: Adjust differential. Ensure proper location away from drafts/heat sources.
Erratic Operation: Reset thermostat: OFF mode, remove batteries, press reset, replace batteries.
Low Battery: Replace batteries when indicator shows.
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., Rc/Rh for power, W for heat, Y for cool, G for fan, O/B for reversing valve).
Set internal switches (NORM/HP, F/C, HG/HE).
Push excess wire back, plug hole with insulation to prevent drafts.
Snap thermostat onto sub-base.

Battery Location

Front loading battery door. Replace when low battery indicator shows. Use alkaline "AA" batteries.
If unoccupied for long periods, replace batteries before leaving.

Power Options

Dual powered: Hardwired or battery.

Thermostat Power Method	Description
Battery Powered	Runs on two "AA" batteries.
Hardwired with Battery Backup	Runs on 18-30V AC from transformer with batteries as backup for clock/settings.

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