Lennox 21U21, Photoelectric Smoke Detector Kit, Power Board and 1 Sensor
Cat # : 21U21
Quantity:
Product Overview
Smoke Detector Kit - Supply or Return (Power Board D4P120 and 1 Sensor D4S)
For PR, PRP, LRP and Q-Series Packaged Units
Includes
- Smoke detector sensor
- Smoke detector power board
- Power harness
- Supply or return air harness
- Jumper harness
- Metal sampling tube
- Plastic exhaust tube
- Magnet
- Sensor manufacturer’s instructions
- #10 - 16 X 3/4” sheet metal screws
- #8 - 32 X 1” thread-forming screws