INSTALLATION INSTRUCTIONS
23
Adjustable Flue Diaphragms
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Coaxial flue kit system (horizontal-coaxial or vertical-coaxial)
Adjustable flue diaphragms have to be installed on the top of boiler.
Installation Instructions: (see fig. 1):
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Clean the inspection collar surface;
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Stick the neoprene washer paying attention to centre holes of the washer with those on the inspection collar;
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Position flue diaphragms respecting this order: lower disc first with graduated numbers then the upper disc;
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Fix the flange to the flue elbow using the screw and nut provided with the flue kit;
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Install the Ø60 aluminium collar onto the flue elbow and when it is fully assembled (i.e. flange+ aluminium
collar), install it on the flue outlet. Do not push it too strongly to avoid the elbow flange sliding up.
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Fix the system with self tapping screws provided with the flue kit;
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Complete the flue kit installation;
Important! Make the final tightening of screws only after the diaphragms have been set.
UPPER DISK FOR ADJUSTMENT
LOWER DISK FOR ADJUSTMENT
NEOPRENE SEALING
GASKET
90° FLUE BEND
FIXING SCREW
Fig. 1
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