1. 1. Return Duct Temperature Sensor
  2. 2. Differential Pressure Switch
  3. 3. Supply Duct Temperature Sensor
  4. 4. Immersion Temperature Sensor
  5. 5. Variable Frequency Drive
  6. 6. Room Mounted Humidty / Temperature Sensor
  7. 7. Motorized Valve
  8. 8. BTU meter
  9. 9. Damper Actuator