The refrigerated warehouse is kept
at 39°F (4°C) with an ammonia central
chiller and glycol secondary distribution fluid system. The warehouse has fresh air
supply control with CO2 sensors and has
an energy recovery ventilator. The chiller
can operate in free cooling mode by using
the thermosiphon principle.
Offices and common spaces are heated
by a hydronic radiant floor and cooled
by fan-coils. As with the refrigerated
warehouse, outdoor air intake is controlled
by CO2 sensors and variable air
volume (VAV) boxes. Energy recovery
ventilators are also installed. Gas boilers
are installed and sized to heat the entire