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The Modular Packaged Unit (MPU) is designed to be a factory packaged air conditioning and heating
unit for 100% Outdoor Air (OA) applications. Units are sized to operate between 360 to 600 cfm/ton of
cooling, depending on climate.
The modular packaged cooling unit is optimized to work in conjunction with highly efficient
make-up air delivery methods, such as perimeter supply plenums. The unit can either have a down
or end discharge, and can be used with both electric and gas heat. All refrigerant is environmentally
friendly R-410A and condensers have a nominal SEER rating of 14 for greater efficiency.
One benefit of this unit is the multiple cooling stages. Multiple cooling stages increase the
efficiency by not using 100% of the cooling capacity when this is not needed, thus allowing lower
energy usage. An internal make-up air cooling thermostat automatically energizes the first stage
when cooling of the make-up air is required. The same thermostat has a built in adjustable differential
to energize the second stage of cooling when required.
The condensers are top mounted on the make-up air unit to minimize roof space requirements, and
are situated for optimal airflow and serviceability.
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