One set of brand new German made EBM  motor and fan  suitable for  HRV master or slave fan. 
Free air delivery will be 155 CFM to 545CFM depending on running speeds.
220/225mm ac radial fan 
230v•50/60Hz•2-pole
Backward curved motorised impeller
Durable AC external rotor motor
Low noise RadiCal impeller

It comes with a brand new factory capacitors.

If the existing hrv galvanised or metal fans under-perform due to ageing or whatever reasons, it is time to renew the fan motor assembly. You will realise the difference between genuine German factory product and those intimated aftermarket motors.
ebm-papst Group is the world’s leading manufacturer of fans and motors. As a technology company, they have continually set global industry standards since we were founded in 1963.