Solution: All air VAV system
When ventilation allocations are high and heat loads are below 100w/m2 room temperature can be effectively controlled with air as the coolant. Using EMSS damper responding to room thermostat and CO2 sensor, air flow can be varied for temperature control and fresh air regulation matching occupancy levels.
Optimix in LO2 mode delivers a draught free comfortable environment by actively controlling air velocity to 0.2 m/s from minimum right through maximum occupancy levels.
Thus simply matching ventilation to demand saves energy and when connected up to eQ PRIME with ReCooler HP, further savings can be achieved from year round exceptional efficiency of the SEMCO energy recovery wheel and heat pump combination.
The eQ Air Handling Unit with ReCooler removes the need for condenser on roof and for associated pipework which when combined with Veloduct system offers the simplest installation and a huge potential for saving expensive time on site.