iACS - Experts in AHU Controls

The " infrared universale " series is a range of instruments for controlling the temperature, pressure and humidity values in the air-conditioning, refrigeration and heating units. They can however also be used in other contexts, as the voltage or current inputs can support various different types of sensors. In addition, the PT100 probes or thermocouples have an operating range up to 800 °C and can comfortably manage common oven or furnace temperature control processes. The wide range of models can satisfy all requirements: The models are divided into two families :  the first with temperature only inputs, and consequently suitable for temperature control in HVAC/R and/or generic applications that require a thermostat in the range –50T150 °C; the second with universal inputs (NTC, NTC-HT, PTC, PT1000, PT100, TC J/K, voltage and current). The following sensors can be connected to the “ temperature only ” models: • NTC with range –50T90 °C • NTC-HT with r...

The famous ir32 series of controllers has given rise to the new generation of controllers for refrigeration! The new ir33 includes: infrared remote control, programming key, repeater display, high efficiency LED display, HACCP function, clock, RS485 serial port, defrost management on a second evaporator, all without sacrificing the 4 relay outputs and the 115 to 230 Vac switching power supply! All this in the same dimension as the current ir32! ir33 also manages smart defrosts, resulting in energy savings for the entire intallation. IP65 is guaranteed: the innovative technology used by CAREL to mould the plastic parts allows the protection gasket to be integrated directly into the front panel. In models with an internal clock, HACCP management is standard: this guarantees the temperature control of the foodstuffs stored, in compliance with the requirements of the HACCP system. The parameters are set directly on the instrument: the time and temperature limits envisaged b...

This series of “ universal ” thermostats can connect two temperature probes (NTC, PTC, PT1000). The second probe can be used for a second control loop, independent from the first, or alternatively for temperature compensation (summer or heating), differential operation (difference between the two temperatures), or free cooling. They feature two digital inputs that can be configured to manage functions such as an immediate external or delayed alarm, and remote ON/OFF. Programming is made extremely simple by the 9 selectable operating models (e.g.: direct, reverse, neutral zone, PWM, etc.). All controllers feature a PID algorithm with AutoTuning and some versions are available with RTC (real time clock). A low consumption switching power supply is used on both the 12/24 Vac/Vdc and 115/230 Vac versions.

i-A.C.Systems , as Carel's VAR (Value Added Reseller), offers increasingly advanced control solutions in the field of parametric controllers for HVAC/R applications. Specific commitment is dedicated to universal controllers , which provide the user a powerful and flexible instrument that can easily be configured. Starting from extremely simple control strategies the user can, by modifying just a few parameters, adopt control algorithms that are much more sophisticated and innovative, for example PID (Proportional Integral Derivative) with AutoTuning. The comtool software can be used to configure the parameters on the controllers directly from a personal computer. Simple installation is also an important factor, both as regards assembly and wiring, using standard templates and quick connectors. Finally, all universal controllers can interface with CAREL supervisory systems and open supervisory systems.

After the great success of the IR32 controllers, Carel offers a new generation for refrigeration controls. With the new IR33 , Carel now offers: infrared remote controller programming key High performance green display Led RS485 serial board And all of this, keeping the same dimensions as the ir32! The ir33 also manages smart defrost, resulting in great energy savings for the entire insallation. This controller now automatically manages the monitoring of the unit, highlighting any critical situation. It warns when the alarm exceeds its limits, saving the main information to a permanent memory.