Carrier 42/38SHDS050 Installation Manual page 10

Step 3: Duct and accessories installation
1. Install the filter(optional) according to air inlet
size.
2. Install the canvas tie-in between the body and
duct.
3. Air inlet and air outlet duct should be apart far
enough to avoid air passage short-circuit.
4. Recommended duct connection.
Canvas tie-in
Air outlet
Isolation booth
checking orifice
5. Please refer to the following static pressure to
install.
Table.4-2
MODEL
42SHDS050
42SHDS070
42SHDS090
42SHDS100
Change the fan motor static pressure
corresponding to external duct static pressure.
NOTE: 1.Do not put the connecting duct weight
on the indoor unit.
2.When connecting duct, use inflammable
canvas tie-in to prevent vibrating.
3.Insulation foam should be wrapped outside the
duct to avoid condensate and internal duct
underlayer shall be added to reduce the noise
for special requirement.
Page 10
Canvas tie-in
Isolation booth
Air inlet
Air dust filter
Fig. 4.10
Static Pressure
(Pa)
0~100
0~100
0~160
0~160