6www.waterloo.co.uk Tel: +44 (0) 1622 711500Operating and maintenance instructionsSDFC Series for lay in ceilingFigure 13: Slide into ceiling gridFigure 13a: Lower diffuser into placeDuct Mount Installation6- Locate one end of the tile and diffuser into theFHLOLQJRSHQLQJDQGLQDVOLGLQJPRWLRQPRYHLWWRWKHfar end of the opening (Figures 13).7- 2QFH WKH GLIIXVHU LV SRVLWLRQHG ORZHU LW LQWR WKHRSHQLQJHQVXULQJWKDWLWLV¿UPO\VHDWHGDJDLQVWWKHtee bars of the ceiling grid. (Figures 13a).8- Rigid Ductwork a- Lower the ductwork on the drop rods to allowit to slide over the exterior of the duct collar(Figures 14). Anchor it in position using the locknuts on the supporting drop rods. b- Secure the ductwork by drilling through it andWKHGXFWFROODUDERYHWKHVZDJHOLQHWKHQULYHWLQJor screwing them in place (Figures 15). Do notXQGHUDQ\FLUFXPVWDQFHV¿[WKHGXFWZRUNEHORZthe swage line as damage to the diffuser mayoccur.9- Flexible Ductwork3ODFHWKHRSHQHQGRIWKHÀH[LEOHGXFWZRUNRYHUWKHoutside of the duct collar and secure in place using aworm drive hose clip.Cleaning and Maintenance:7R FOHDQ XVH ZDUP VRDS\ ZDWHU DQG D GDPS FORWKWipe down the blades and face of the diffuser andleave to dry.Figure 15: Secure ductwork in placeFigure 14: Lower the ductworkDrill and secureDVUHTXLUHGDo not drill below this swageline ordamage to the diffuser could occur