🌡️ HVAC & Building Management Instrumentation
Countronics humidity and temperature instruments are used in HVAC systems, air handling units, cleanrooms, server rooms, and building management applications across India — providing accurate measurement and automatic control of environmental conditions.
Quick Answer: HVAC and building management systems use humidity and temperature controllers with relay outputs to automatically control heaters, coolers, humidifiers, and dehumidifiers, maintaining comfortable and compliant environmental conditions in AHUs, cleanrooms, and server rooms.
Temperature & Humidity in HVAC Applications
HVAC systems are designed to maintain comfortable and appropriate environmental conditions — but without accurate measurement and control instruments, even the best HVAC equipment cannot guarantee consistent results. Countronics humidity and temperature controllers act as the sensing and decision-making layer for HVAC systems, activating humidifiers, de-humidifiers, heaters, and coolers based on real-time measurements to maintain set conditions automatically.
Humidity & Temperature Controllers
Honeywell capacitive sensor. Four SSR outputs: Heater, Cooler, Humidifier, De-Humidifier. Proportional PWM control. For precise AHU and cleanroom control.
Dry/wet PT100 sensors. Relay outputs for temperature and humidity control. Panel-mounted. For industrial HVAC and process area control.
Two independent relay outputs — one for temperature, one for humidity. User-settable hysteresis. Dry/wet sensor. Simple and reliable HVAC control.
Same as 7217 with capacitive humidity sensor. Faster response. Suitable for cleanrooms and precision environments requiring accurate RH sensing.
Display Indicators
Large 1-inch LED displays. Visible from 10 metres. Dry/wet PT100. For building lobbies, production halls, and large HVAC-controlled spaces.
Records both RH% and temperature to USB pen drive. For HVAC performance audits, energy optimisation, and environmental compliance documentation.
Key HVAC Applications
- Air handling units (AHU) — humidity and temperature control with 7214
- Cleanrooms — precise 4-output control with 7214 or monitoring with CT700
- Server rooms and data centres — temperature and humidity monitoring with CT700
- Office buildings and lobbies — large display monitoring with 7100W
- Pharmaceutical HVAC — cleanroom environmental control and logging
- Textile mills — humidity control critical for yarn quality
- Printing facilities — humidity and temperature for ink and paper quality
Frequently Asked Questions
Which Countronics instruments are used in HVAC?
Countronics supplies humidity and temperature controllers (7210, 7214, 7217, 7217-CAP), wall indicators (7100W, 7100W-CAP), and data loggers (CT700) for HVAC applications including AHU control, cleanroom monitoring, and environmental logging.
Which controller is best for AHU systems?
The 7214 with four SSR outputs (Heater, Cooler, Humidifier, De-Humidifier) is most suitable for AHU control, providing proportional PWM for heater and humidifier with a Honeywell capacitive sensor for accurate sensing.
Which instrument is used for server room monitoring?
The CT700 humidity and temperature data logger records both RH% and temperature to USB pen drive with timestamps — ideal for server room environmental monitoring and compliance documentation.
What is the difference between 7217 and 7214?
7217 has two relays with simple on/off control. 7214 has four SSR outputs with proportional PWM. Choose 7217 for simple two-device HVAC control; 7214 when full four-mode automatic environmental control is needed.
Need instruments for your HVAC system?
Share your application and we will recommend the right model with datasheet and pricing within 24 hours.
