Air Ducts Connections - Carrier 30PA Installation, Operation And Maintenance Instructions

Ductable air-cooled scroll
chillers and heat pumps

Air ducts connections

For units designed for installation indoors with ducted supply and
return in the outdoor circuit, it is advisable to have the following
recommendations:
- Curves in the fan discharge supply must be avoided. It is
recommendable to have a straight section of duct measuring
approximately 1 metre. If it is not possible, they must be as smooth
as possible, using indoor defl ectors when the duct is of large
dimensions.
- When making the ducts, direction sharp changes must be avoided
since they can generate occasional pressure drops, which affect
the available pressure and the fl ow. The location of discharge
and aspiration grilles must be studied carefully to avoid the air
recirculation and the transmission and generation of noises to the
interior.
- No matter the type of ducts type to use, these must be insulated and
must not be composed of materials that propagate fi re nor expel toxic
gases in the event of a fi re. The internal surfaces must be smooth
and should not pollute the air that circulates within them. In any case,
the effective legislation about this issue must be respected.
- Flexible connections must be made between the ducts and the unit
that avoid the noise and vibration transmission.
 Flexible connections
Optionally, these units can be sent with fl exible connections for supply
and return air.
Supply ducts
STD version M00 dimensions (mm)
A
90STD / 100STD 859
120STD to 180STD 1139
STD version M00 dimensions (mm)
A
90STD / 100STD 859
120STD to 180STD
1139
M00 dimensions (mm)
HEE version
A
90HEE
859
100HEE / 120HEE
1139
160HEE / 180HEE
1854
 Damper for condensation pressure control (optional): add the height
of the damper to the fl exible duct.
In case of asking together for fl exible connections and damper for
condensation pressure control (optional for version STD), discharge
fl exible ducts are attached to the above mentioned damper.
If it is removed the damper for installation on duct, it is necessary to
maintain the frame for reconnecting the fl exible connections.

Without damper
M01 dimensions (mm)
B C A B
407 132 552 430
481 132 652 552

With damper
M01 dimensions (mm)
B C A B
407 132 513 391
481 132 613 513
M01 dimensions (mm)
B C A B
407 132 633 589
481 132 817 639
407 132 1619 590
Return ducts
STD version
90STD / 100STD
120STD to 180STD
HEE version
90HEE
100HEE / 120HEE
160HEE / 180HEE
M00 asssembly:
Horizontal supply
C
152
152
C
132
132
C
132
132
132
M01 asssembly:
Vertical supply
Without fi lters (mm) With fi lters (mm)
C D E C
132 903 800 109
132 1183 950 109
Without fi lters (mm) With fi lters (mm)
C D E C
132 903 800 109
132 1183 950 109
132 1897 800 109
D E
903 800
1183 950
D E
903 800
1183 950
1897 800
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