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Vitoflex 300-RF Installation & Operating
Recirculation System
Legend
A Vent piece with recirculation adaptor
B Recirculation system damper
C Threaded rod M12 39e in. (1000 mm)
D Base plate M12 (x4)
E Pipe clamp M12 (x4)
F Pipe clamp fitting (x16)
G Elbow 15º (x2)
H Elbow 30º (x2)
I Elbow 90º with cleanout (x3)
J Pipe 9
/
in. (250 mm) (x3)
7
8
K Pipe 19f in. (500 mm) (x3)
L Pipe 39e in. (1000 mm) (x3)
M Insulation (optional) (x5)
RD Recirculation pipe diameter, for Vitoflex 300-RF 150
and 220 is 3d in. (80 mm), for Vitoflex 300-RF, 400
and 540 is 5d in. (130 mm).
VD Vent pipe diameter, for Vitoflex 300-RF 150 and 220
is 9
/
in. (250 mm), for Vitoflex 300-RF is 11
7
8
(300 mm), for Vitoflex 300-RF 400 and 540 is 13
(350 mm).
/
in.
7
8
/
in.
7
8
Mechanical
1
25
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