CH-HRV Heat Recovery Ventilation Units (K2 and K4 series)
 The Cooper&Hunter CH-HRV2K2, CH-HRV3K2, CH-HRV4K2, CH-HRV6K2, CH-HRV8K2, CH-HRV10K2 and CH-HRV13K2 ventilation units are designed for efficient air renewal with heat recovery using a cellulose enthalpy exchanger.
 Main features:

 
 Cellulose enthalpy recovery
 
 Air flow rate from 150 to 3000 m³/h
 
 Parallel flow heat exchanger
 
 Silent operation
 
 Two integrated filters: supply and extraction
 
 Easy ceiling installation
 
 Bypass function
 
 Three fan speeds
 
 Automatic defrost control
 
 Compatible with external control and BMS
 
 Filter maintenance indicator
 
 Optional support for CO₂ and humidity control

 Available models (K2 and K4 series):
 CH-HRV2K2, CH-HRV3K2, CH-HRV4K2, CH-HRV6K2, CH-HRV8K2, CH-HRV10K2, CH-HRV13K2
 CH-HRV1.5KDC, CH-HRV2.5KDC, CH-HRV3.5KDC, CH-HRV5KDC, CH-HRV6.5KDC, CH-HRV8KDC, CH-HRV10KDC
 CH-HRV15K2, CH-HRV20K2, CH-HRV25K2, CH-HRV30K2
 CH-HRV15AK2, CH-HRV20AK2, CH-HRV25AK2, CH-HRV30AK2
 CH-HRV15K4, CH-HRV20K4, CH-HRV25K4, CH-HRV30K4
 CH-HRV15AK4, CH-HRV20AK4, CH-HRV25AK4, CH-HRV30AK4
 Control options:

 
 Basic or advanced controller (optional)
 
 Speed selection
 
 Weekly timer
 
 Automatic bypass function (depending on model)
 
 Configuration memory
 
 Nighttime free cooling mode (on compatible models)

 About the series:

 
 K2 / AK2 – enthalpy recuperator (cellulose / aluminum)
 
 K4 / AK4 – higher capacity versions with cellulose or aluminum heat exchanger