Vaillant auroTHERM VFK 900 Installation Manual page 10

3 In-roof mounting
Fig. 3.12 Slide the silicone T profile into the gap between the
collectors. Alternate pushing and pulling will make the
task easier. Then push the collectors together to meet.
Fig. 3.13 Screw the solar collector to the laths at the top left
and right along the edge using collector in-roof
retainers.
Fig. 3.14 Apply a thin bead of silicone between the profile flanks
of the T profile and the collector frame to provide a seal.
10
Fig. 3.15 Connect the collectors with stainless steel corrugated
hoses. Holding the fitting securely when tightening
protects the collector connection from damage.
Fig. 3.16 Connect collector connection pipes (Part No.302 384
and 302 385) to the free collector connections and
the Cu pipes of the solar circuit under the roof (with
1/2"-18 mm nipples). Seal connections if later the
underside of the roof is enclosed.
Installation Manual auroTHERM, VFK 900, 0020009584_01