Possible Types Of Assemblies - Carrier 020-093 Installation, Operation And Maintenance Instructions

3 - POSSIBLE TYPES OF ASSEMBLIES

Depending on the indoor airfl ow direction
B1 assembly
Standard
S''
S'
S
B3 assembly
Economizer, 3 dampers:
fresh air damper and exhaust air damper
S'
S
BA assembly
Plug-fan in return section +
Cooling recovery circuit (active recovery)
S'
S
BW assembly
Plug-fan in return section + Heat recovery
wheel module (passive recovery)
S'
S R
Indoor airfl ow direction
0
Lower supply and lower return
1 Lateral supply and lower return
2 Lower supply and lateral return
B assemblies: "Standard" (all models): R-410A and R-454B
B2 assembly
Economizer, 2 dampers: fresh air damper
interlocked with return damper
R''
R' S'
R
BX assembly
Axial return fan
F
E
S'
R
BT assembly
Return top box with plug-fan or centrifugal fan
R'
F
E
S'
R
BL assembly (upon request)
Return top box with plug-fan + Heat recovery
wheel module (passive recovery)
R'
F
E
S'
3
Lateral supply and lateral return
4 Upper supply and lower return
5 Lateral supply and upper return
S'' R''
F
R'
S R
F
E
S R
E
F
S
E
F
S
BF assembly
100% fresh air
S'
S
BP assembly
Plug-fan in return section
S'
S
BB assembly
Return top box with plug-fan or centrifugal fan
+ Cooling recovery circuit (active recovery)
R'
S'
S
Legend
S Lower air supply R Lower air return
S' Lateral air supply R' Lateral air return
S'' Upper air supply R'' Upper air return
F Fresh air intake E Exhaust air outlet
Note: only one of the three possible options
(lower, lateral or upper) can be selected for both,
supply and return.
6
Upper supply and lateral return
7 Lower supply and upper return
8 Upper supply and upper return
F
F
E
R
E
F
5