Prem-I-Air EH0530 Instruction Manual page 13

IMPORTANT SUGGESTIONS:
Because the hot air discharge pipe diameter is nearly the same as the 135mm drill bit,
the pipe is slightly tight fit into wall hole. If you experience any difficulties, use a small
piece of timber & a rubber hammer to gently knock the tube into the hole.
After the pipe has been installed through the wall, insulate and seal its perimeter to
prevent air and humidity infiltration using polyurethane foam.
Use the same instructions to fit the left hand tube ( air discharge pipe ) and ring, using
the other supplied pipe with diameter 120mm.
5 . Remove the Rubber Plug.
6. Fitting the unit on bracket
After checking again that the fastening bracket is securely fastened to the wall,
and that any necessary preparations for electric connection and condensate
drainage have been made, tilt the unit slightly towards you to aid the operation
of fastening the unit onto the bracket. Fit the drainage pipe that protrudes from
the back of the unit, which is then inserted in the drainage hole.
The air conditioner can now be pushed firmly against the wall. Carefully inspect
the installation to ensure that the insulating back panel fits firmly against the
wall and there are no gaps at the back of the air conditioner.
Page 13