Heating, ventilating and air conditioning (HVAC) systems regulate the indoor environment of a building to ensure occupant comfort. A hydronic HVAC system, on the other hand, employs water as the primary fluid for energy transfer throughout a building.
Water has excellent heat transfer properties and other benefits, including abundance, non-toxicity, eco-friendliness, and affordability, which make it an ideal choice for this application. To deliver heat, the system requires a heat source, typically a boiler, while a cooling source, such as a chiller or cooling tower, is needed for cooling.
The heated or cooled water is pumped through the building to air handling units, terminal units, or similar devices. It transfers energy with air from the ventilation system before recirculating it to the heating or cooling source. The conditioned air is then distributed to the designated rooms.
Image Credit: Sensata Technologies, Inc.
Solution
Sensata offers a variety of solutions to optimize and enhance the monitoring process, ensuring maximum efficiency. The company's portfolio includes sensors, circuit breakers, switches, and relays that safeguard the application and allow users to keep track of the system's performance.
Pressure sensors and switches are critical in monitoring HVAC systems, enabling precise detection of refrigerant and liquid media pressure throughout the system. Temperature sensors and switches are also crucial for accurate temperature monitoring of liquid media.
Sensata's temperature sensors are designed to provide precise temperature control, ensuring optimal performance.
Switches and relays are employed to regulate the on/off functioning of various parts of the HVAC system, with Sensata's relays enabling long-lasting, noiseless operation that minimizes the need for maintenance and maximizes user comfort.
Power control components protect HVAC systems from power surges. Sensata's circuit breakers feature high pulse tolerance and long-time trip delay, making them ideal for safeguarding HVAC systems.
Recommended Products
Table 1. Source: Sensata Technologies, Inc.
| Reference on Diagram |
Product |
Function |
Features |
Brand |
| Pressure Sensors & Switches |
| 1 |
 |
PS80 SERIES |
The PS80 series is a pressure switch that can be used for monitoring the refrigerant line pressure on chiller and cold water generator applications. Its robust build allows use with a variety of refrigerants. |
- High reliability
- Environmentally sealed leads
- Fixed set points
|
Klixon |
| 2 |
 |
116CP SERIES |
The 116CP series is a pressure sensor specializing in liquid media sensing pressure. It can be an inexpensive option for monitoring safe levels of hot water pressure due to its plastic housing in boiler applications. |
- High accuracy +/-1.5%FS
- REACH/RoHS compliant
- 0-4 to 0-16 bar
|
Sensata Technologies |
| 3 |
 |
2CP5 SERIES |
The 2CP5 series can monitor pressure between the pump and return water inlet allowing for more precise information to board controls. |
- UL recognized
- Overvoltage and short circuit protected
- Accurate performance over wide temperatures
|
Sensata Technologies |
| 4 |
 |
112CP SERIES |
The 112CP series combines a pressure sensor and temperature sensor in one package. It reduces the need for multiple sensors in compact HVAC applications. |
- 0 to 150 to 0 to 650 psi
- -40 °C to 135 °C Temperature Rating
- Precise superheat measurement
|
Sensata Technologies |
| Temperature |
| 5 |
 |
1NT & 3NT SERIES |
The 1NT & 3NT thermostats offer runaway thermal protection at any junction critical in HVAC applications. Due to the 3NT's mounting clip, it is beneficial on in-room thermal units or on copper tubing where safety is required. |
- -40 °C to 240 °C Temperature Rating
- Multiple switch actions are available
- ISO9001: 2000 certification
|
Sensata Technologies |
| 6 |
 |
3000 SERIES |
The 3000 series is a probe-style temperature sensor that can deliver precise, accurate temperatures of liquid media to board-level controllers for optimal temperature control and efficiency. Ideal for smart or green HVAC applications. |
- Available as a RTD or Thermistor
- -40 °C to 125 °C Temperature Rating
- Stainless steel probe assembly
|
Sensata Technologies |
| Switches & Relays |
| 7 |
 |
EL SERIES |
The EL series is a solid-state relay that offers the end-user silent operation of blowers or fans on the thermal units. Ideal for medical or hotel HVAC applications where silent operation can be critical. |
- 21 mm wide package
- 10A & 30A @ 24 to 280 VAC
- UL & cUL Recognized, CE & RoHS Compliant, TUV certified
|
Crydom |
| Power Controls |
| 8 |
 |
209 SERIES |
The 209 series circuit breaker can meet the unique trip point and trip time challenges of HVAC applications. A reduced trip point allows compliance with UL and NEC requirements while preventing nuisance trips during motor start. |
- UL489 Listed or UL 508 Recognized
- 115% trip point capable for UL and NEC requirements
- High pulse tolerance and long time delay
|
Airpax |
HVAC System
Image Credit: Sensata Technologies, Inc.
Boilers System
Image Credit: Sensata Technologies, Inc.
This information has been sourced, reviewed and adapted from materials provided by Sensata Technologies, Inc.
For more information on this source, please visit Sensata Technologies, Inc.