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Fixed Pivot Air/Gas Vents
Model 21-AR
®
These instructions should be used by experienced personnel!
PRODUCT DESCRIPTION
Armstrong Cast Iron Fixed Pivot Air/Gas Vent.
Vertical connection.
For detailed material specifications, options, approximate dimensions and weights,
see Armstrong literature or consult your local Representative.
INSTALLATION
Possible connections: screwed.
Not included
Vent connection
START-UP PROCEDURE (Bottom Inlet - Top Outlet)
For detailed hookups and adapted start-up and shut-down procedures, see Armstrong literature or consult your
local Representative.
I
II
III
SHUT-DOWN PROCEDURE (Bottom Inlet - Top Outlet)
I
II
III
t < 40°C
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