York CSA DH 036 Spécifications Page 93

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Vue de la page 92
2-63
JOHNSON CONTROLS
FORM 102.20-N1 (1109)
2
FIG. 2-95 – RECOMMENDED DISCHARGE DUCT ARRANGEMENT WHEN TURNS ARE REQUIRED
GASKET OR SEALANT
GASKET OR
SEALANT
FLANGED DUCT
RAW EDGE DUCT
SHEET METAL SCREW
DETAIL A
BOTTOM VIEW OF UNIT
DUCT CONNECTIONS
Ducts must have positive seal to unit openings.
Installer is responsible for providing ductwork to include base rail height for curb mounted
units.
All duct work is to be supported independent of the connection to the unit.
If the entire unit is mounted on isolation, the duct connection is to be flexible.
This instruction is suitable for bottom, end, side and top connections. Top connections on
Outdoor units are not recommended.
FLANGED DUCTS OR SLEEVES:
To use flanged duct or sleeve be sure there will be access on all four sides to fasten the flange completely.
:
Flanged ducts can be connected with self drilling screws directly to the unit with gasket or sealant between unit and
duct flange.
A flanged sleeve may be dropped through the opening, provided there is access to seal & fasten the flange to the
unit interior surface.
RAW OR STRAIGHT EDGE DUCTS OR SLEEVES
The duct opening on the unit is located in a panel that is approximately 2” thick. The inside of the opening (2”
surface) is suitable for attaching ducts.
If access is not available from inside the unit, access may have to be from inside the duct or sleeve.
Raw or straight edge ducts can be connected with self drilling screws directly to the unit with gasket or sealant
between unit and duct.
LD14087
Duct Connections
Ducts must have positive seal to unit
openings. Installer is responsible for
providing ductwork to include baserail
height for curb mounted units.
All duct work is to be supported in-
dependent of the connection to the
unit. If the entire unit is mounted on
isolation, the duct connection is to be
exible. This instruction is suitable for
bottom, end, side and top connections.
Top connections on Outdoor units are
not recomended.
Flanged Ducts or Sleeves
To use anged duct or sleeves, be sure there will
be access on all four sides to fasten the ange
completely.
Flanged ducts can be connected with self drilling screws
directly to the unit with gasket or sealant between unit
and duct ange.
A anged sleeve may be dropped through the opening,
provided there is access to seal and fasten the ange to
the unit interior surface.
Raw or Straight Edge Ducts or Sleeves
The duct opening on the unit is located in a panel that
is approximately 2" thick. The inside of the opening
(2" surface) is suitable for attaching ducts.
If access is not available from inside the unit, access
may have to be from inside the duct or sleeve.
Raw or straight edge ducts can be connected with
self drilling screws directly to the unit with gasket or
sealant between unit and duct.
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