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018-060
070 24-IN.
UPFLOW/DOWNFLOW
SECONDARY DRAIN
UPFLOW/DOWNFLOW
PRIMARY DRAIN
CAUTION: For optimum condensate drainage performance in horizontal installations, unit should be leveled along its
length and width.
NOTE: Modular units can be disassembled and components moved separately to installation area for reassembly. This process accommodates
small scuttle holes and limiting entrances to installation sites. (See Fig. 3.)
HORIZONTAL RIGHT CONVERSION OF UNITS WITH SLOPE COILS
NOTE: The TXV sensing bulb must be insulated on slope coils in horizontal right and downflow applications. Failure to insulate bulb will result
in performance loss.
1. Remove blower and coil access panels and fitting panel. (See Fig. 4.)
2. Remove coil mounting screw securing coil assembly to right-side casing flange.
3. Remove coil assembly.
4. On FC4 insulate TXV sensing bulb with cork tape or other permanent insulating material. (See Fig. 4.)
5. Lay fan coil unit on its right side and reinstall coil assembly with condensate pan down. (See Fig. 4.)
6. Attach coil to casing flange using coil mounting screw previously removed.
7. Align holes with tubing connections and condensate pan connections, and reinstall access panels and fitting panel.
Make sure liquid and suction tube grommets are in place to prevent air leaks and cabinet sweating. Install after brazing.
HORIZONTAL RIGHT CONVERSION OF UNITS WITH A-COIL
1. Remove blower and coil access panels. (See Fig. 5.)
2. Remove metal clip securing fitting panel to condensate pan. Remove fitting panel.
3. Remove 2 snap-in clips securing A-coil in unit.
4. Slide coil and pan assembly out of unit.
5. Remove horizontal drain pan support bracket from coil support rail on left side of unit and reinstall on coil support rail on right side of unit.
6. Convert air-seal assembly for horizontal right
a. Remove air-seal assembly from coil by removing 4 screws. (See Fig. 5.)
b. Remove air splitter (B) from coil seal assembly by removing 3 screws. (See Fig. 5—factory-shipped inset.)
POWER ENTRY
OPTIONS
21-IN. FRONT SERVICE
CLEARANCE
A COIL
UNITS
UPFLOW/DOWNFLOW
SECONDARY DRAIN
UPFLOW/DOWNFLOW
PRIMARY DRAIN
→ Fig. 1—Slope Coil Unit in Upflow Application
UNIT
018/024
030/036
042
⁄
"
1
1
2
19"
⁄
"
1
2
2
—2—
FIELD SUPPLIED
SUPPLY DUCT
LOW VOLT
ENTRY
OPTIONS
A
12 In.
17 In.
19 In.
FIELD MODIFIED
SIDE RETURN
A
LOCATION FOR
SLOPE COIL
UNITS ONLY
FIELD SUPPLIED
RETURN PLENUM
A00069
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