Carrier 42C Series Product Data page 22

Application data (cont)
One of the unique traits of the Universal Stack (42SU) is the variety of possible unit arrangements. The
best unit design configuration can be selected by choosing from numerous unit arrangement options
that utilize knockout designs while conserving floor space and reducing installation costs.
Below are just a few pictorials of the many arrangement possibilities of the 42SU fan coil system.
NOTE: Risers ship separately. Units are field connected to risers using factory furnished flex hoses.
Room B
Room B
Room B
Room B
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22
42SU ARRANGEMENT OPTIONS
42SU
Room A
42SU
Room A
42SU
Room A
42SU
Room A
LEGEND
Exterior Wall
Field Sheetrock
Separation or Utility Chase
Universal Stack Unit
Partition (or Separation) Wall
Hoses for Field Installation
Supply Air
Return Air
The Supply, Return, and Drain risers (2-pipe or
4-pipe applications) can be oriented on any of
three sides of the unit.
HR HS
42SU
Cabinet
Return Air
R D S
R = Return
D = Drain
S = Supply
2-pipe
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D CR CS
HR HS CR CS
D
HR = Hot Water Return
HS = Hot Water Supply
D = Drain
CR = Cold Water Return
CS = Cold Water Supply
4-pipe