OEM defrost control board kit for Lennox heat pump systems with integrated demand defrost logic and 28W71 ambient sensor harness. Monitors outdoor coil temperature to prevent frost accumulation and optimize efficiency during low-ambient operation. Includes control board, sensor harness, control sticker, and installation instructions. Direct replacement for legacy Lennox, Allied, Armstrong, and other brand part numbers.
Lennox 15D57 Defrost Control Board with Sensor
Lennox
$213.95
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Lennox
Lennox 15D57 Defrost Control Board with Sensor
- SKU:
- 15D57
- Product Type:
- Defrost Control Board
- Subcategory:
- Heat Pump Defrost Control
- Application:
- Residential/Commercial
- System Type:
- Heat Pump
- Installation Type:
- OEM Replacement
- Voltage:
- 24V
- Voltage Class:
- Low Voltage
- Mounting Type:
- Plug-In
- Connection Type:
- Quick-Connect
- Control Type:
- Non-Programmable
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