Ventair Mixflow Installation And Wiring Instructions page 5

To start the installation the motor wheel assembly must first be removed,
loosening the two spring clips around the casing and remove.
(Step 1-3 diagram below).
2.Secure the mounting bracket fan flange assembly to a fixed structure.
(Step 4-5 diagram below).
3.Replace the fan motor wheel assembly and tighten the two spring clips
to secure the product.(Step 6-8 diagram below).
Note:Please pay attention to the Air Direction when replacing the motor
wheel assembly.
4.Prepare the electrical wiring connection.Please refer to ELECTRICAL
CONNECTION section of this manual for wiring diagram.(Step 9-12
diagram below).