Products Centrale wentylacyjne PREEVA SHH / RHH


PREEVA SHH condensing air handling unit
PREEVA SHH condensing air handling unit


The Reznor PREEVA High Efficiency condensing units SHH and RHH are the latest variants of our compact air handlers.

They are capable of providing heating, cooling, ventilation and free cooling, with varied classes of air filtration. The difference with the regular PREEVA air handlers is that the SHH and RHH have a secondary heat exchanger for additional heat extraction out of the flue gases.

The indoor (SHH) and outdoor (RHH) installations are suitable for connection to ductwork and the indoor SHH  units can also be used as free blowing units.
They are an ideal fit for industrial buildings, commercial and retail premises, warehouses, sports and leisure halls and churches.

All units are manufactured by means of factory-assembled modular sections, which allow an easy  selection of possibilities, including air mixing modules , filter modules or cooling modules. The base frame is also a modular design.

Heating Range ( kW )

Cooling Range ( kW )

Airflow Range ( m3/h )

Heating Efficiency ( Net )

  • Natural gas or propane
  • Spark ignition
  • Heating section
  • Blower section
  • SHH: Heat exchanger from titanium stabilized aluminized steel
  • RHH: Heat exchanger from stainless steel AISI 409

2 Files


Complete manual Carel English
Complete manual Carel
Download File
1.4 MB
Quickstart manual Carel English
Quickstart manual Carel English
Download File
168.1 kB

Product News : PREEVA - Air handling to your measure!

The Reznor brand PREEVA air handling units for heating, ventilation and cooling can be installed indoors or outdoors. An optional cooling coil allows the application of a chiller, condensing unit or even a heat pump. Heat recovery is one of the many other energy saving possibilities.


Case Study : Year round comfort for sustainable Quick restaurants

Quick is a chain of Belgian fast food restaurants who are currently redesigning their restaurants to become more sustainable, reducing energy use. This concept requires high efficiency heating and air conditioning as well as heat recovery. It should come as no surprise that Reznor's PREEVA air handling units were selected to give the end user year round heating and cooling comfort at the highest efficiency.