TROUBLE-SHOOTING GUIDE. EXPLODED VIEW DRAWINGS. REPLACEMENT PARTS. NuTone to the LB-55. the LBC-55 and the chime models no longer in production. MODEL. View online (4 pages) or download PDF (107 KB) NuTone LB-55 User manual • LB-55 car kits PDF manual download and more NuTone online manuals. READ & SAVE THESE INSTRUCTIONS! Melody. Musical Chime. MODEL: LB-55HO. INSTALLATION HINTS. • A NuTone Decorative Door Chime is not only a pleasant. NuTone LB-55. Manuals and User Guides for NuTone LB-55. We found 1 manuals for free downloads: User manual. NuTone LB-55 Wiring Instructions. NuTone Musical Electronic Chime Model LB55 LBC55 Service Manual. (2.9M). This is an update manual that covers later versions of the listed chimes.