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Manual 2100-537
I
Page 13 of 54
FIGURE 2A – UPFLOW & COUNTERFLOW DUCTING CONFIGURATIONS
Blower Air
Evap. Coil
Counterflow
Position
Cond. Coil
Water Out
Cond. Coil
Desuper.
Water In
Water In
Desuper.
Water Out
Supply
Return
Main Drain
Blower in
Alternate Position
7/8" Line Set
3/8" Line Set
Blower Air
Evap. Coil
Upflow
Cond. Coil
Position
Cond. Coil
Water Out
Desuper.
Water In
Desuper.
Water In
Water Out
Supply
Return
Return
Secondary
Return
Drain
Main Drain
Blower in
Shipped Position
7/8" Line Set
Control Panel
MIS-2828
Control Panel
3/8" Line Set
Drain
Secondary
Air Filter Required
One FR23 (16 x 25 x 1) or
field supplied equivalent
required for upflow side
return installation
Bottom return upflow and
top return counterflow filter
provision must be field
supplied
NOTE:
Requires Switch #4 on Tap Select
Control to be Turned On.