| Installation of flue assembly • Fit rubber sealing collar (A) into groove at the outer end of pipe (B). • Fit outer pipe (B) into wall with groove to the outside. • Pull pipe inwards to bring rubber sealing collar hard up against external wall, see diagram 12. • Fit internal plastic flange (C) onto outer pipe. Push along the pipe until engaged against internal wall. • From inside, insert inner pipe (D) into outer pipe. • Fit both 'O' rings (E) into the flue elbow (F), one at the inlet, one at the outlet. By necessity, they are a loose fit, apply a small amount of silicone grease to each 'O' ring when fitting. • Slacken the two screws and fit the clamp and seal (G) onto the elbow. • Take hold of the inner flue and push gently onto the elbow outlet taking care not to tear the 'O' ring. Important: If the flue has been cut, ensure that there are no burrs that could damage the 'O' ring. • Push the elbow clamp and seal over the outer flue. • For flue systems less than 1 m long, leave the restrictor (a) fitted in the fan outlet, see diagram 13. • Remove the backing from the self adhesive gasket (H) and carefully fit gasket to base of flue elbow. • Fit elbow onto boiler and secure with the four screws (I). |