A Quick Overview of Monitoring HVAC Systems with Wzzard Sensors
23/10/2018
Thermocouple Nodes use Type J or K thermocouples to measure temperature:
• Room air temperature
• Feed / Return duct air temperature
•
• Outdoor temperature
•
• Compressor temperature
• Motor temperature
• Etc.
Analog Nodes can be used to monitor any sensor that outputs an analog voltage or 4-20mA signal:
Note: Signals other than 0-5V or 4-20mA may require signal conditioners or voltage dividers.
• Temperature / Humidity
• Duct pressure
•
• Motor running current
• Compressor running current
• Hot gas line pressure
• Suction line pressure
• Dew point
• Wind direction
• Soil moisture
• Etc.
Digital Nodes can be used to monitor digital (On/Off) sensors and count events:
• Compressor/pump run
• Heat/Cool on/off
• Float level (flood sensor)
• Wind Speed
• Rain gauge
• Limit sensors
• Smoke / CO sensors
• Etc.
