IMO has released a new Jaguar energy saving inverter drives with functions incorporated specifically to support HVAC applications.  The Jaguar VXH torque vector controlled model has been designed in consultation with industry experts worldwide and satisfy the specific requirements of HVAC applications.

It is estimated that up to 50% of energy consumption in schools, hospitals, shopping centres, hotels and office buildings is related to HVAC use. The Jaguar VXH is a dedicated HVAC inverter offering functions and features designed to create the optimal building environment whilst keeping the energy consumption in AHUs, water pumps, compressors, condensers, and others to a minimum.

Suitable for BMS integration or stand-alone applications, the drive supports a wide range of analogue and digital input options and with BACnet MS/TP, Modbus RTU and Metasys N2 communications built in as standard and Lonworks, Ethernet, Profibus, DeviceNet, CANopen and CC-Link as plug in option cards.

IMO Jaguar VXH for HVAC applications (0.75kW – 710kW)

The Jaguar VXH is an energy saving drive designed to meet the demands of the building services industry. To simplify installation it is available in IP21 or IP55 forms for use with air handling units, cooling fans and circulating pumps.

All models incorporate multi-language keypads, built-in RFI filtering as standard, and drives up to 90kW also include built-in DC line reactors.  Other features include a real-time clock, built-in PLC functionality, PID controllers, automatic energy saving, and a cumulative kWh data logger.

Optimal control for HVAC

HVAC specific functions include wet-bulb temperature presumption control, fire mode, filter clog detection and cleaning function, broken belt detection.

Air Handling Unit (AHU) Supply fan / Return fan

The speed of supply and return fans is adjusted optimally according to the pressure, discharge temperature, room temperature, and others. The highest level of energy efficiency can be achieved by controlling the air flow based on the carbon dioxide level in room.

Chilled water pump

The chilled water pump circulates the chilled water generated with the freezing machine to the air conditioner and fan coil. The pump speed is adjusted optimally according to the header pressure.

In addition, the pump pressure can be controlled to the correct value by correlating the flow rate signal with the target pressure using the linearization function.

Cooling water pump

The cooling water pump circulates the cooling water to the cooling tower in order to cool the heat generated by the freezing machine. The pump speed is adjusted optimally according to the temperature and flow rate of cooling water. In addition, the inverter can control the cooling pump so that the difference of cooling water temperature between the inlet and outlet is always constant. (Temperature difference constant control).

Cooling tower fan

The cooling tower fan is used to cool the heat of cooling water by emitting it into the air. The fan speed is adjusted optimally according to the cooling water temperature at the outlet.

To further improve energy efficiency, the inverter estimates the wet-bulb temperature automatically to control the fan so that the temperature of cooling water (wet bulb) is interlocked to the air temperature. (Wet-bulb temperature estimation control).

Applications within the building services industry require 24/7 operation and all IMO Jaguar Drives have a 10 year design life and are covered by IMO’s unique 5 year warranty.  With many energy saving applications offering payback periods of between 12 – 18 months IMO’s 5 year warranty means that they are the only drives company to underwrite energy savings.

Go here for IMO XVH brochure

Go here for IMO Jaguar drives at discounted prices at 999 Inverters