Installation - Rheem FO13C Series Installation Instructions Manual

Interconnecting Tubing (cont.)
For applications that are considered to have a long
line set with the outdoor unit and indoor unit on the
same level the following is required:
• TXV or EEV on the indoor unit
• Start components may be required depending
upon quality of voltage (consistently <200vac at
outdoor unit)
• Crankcase heater (Some models have factory
installed CCH's. Refer to tables on pages 13 and
14.)
For applications that are considered to have a long
line set with the outdoor unit below the indoor unit
the following is required:
• TXV or EEV at the IDunit
• Crankcase heater (Some moels come with factory
installed CCH's. Refer to tables on page 13 & 14.)
• Start components may be required depending
upon quality of voltage (consistently <200vac at
outdoor unit)
• Refrigerant lines should be routed even with the
top of the ID coil or an inverted trap is to be ap-
plied. (Reference fi gure 4).
OUTDOOR UNIT BELOW INDOOR SECTION LINE SET
ROUTE
REFIGERANT LINES
EVEN WITH TOP OF
COIL OR INSTALL
INVERTED TRAP.
INSULATE
LIQUID AND
SUCTION LINE
Figure 4
• Insulated liquid and suction line in uncondi-
• Follow the proper line sizing, equivalent length,
• Measure pressure at the liquid line service valve
• For elevations greater that 25' can expect a

INSTALLATION

• Insulated liquid and suction line in unconditioned
space only.
• Vapor line should slope toward the indoor unit
• Follow the proper line sizing, equivalent length,
charging requirements, and oil level adjustments
spelled out in this document and the outdoor
units I&O
• Verify at least 5°F sub-cooling at the ID unit prior
to throttling device
REFERENCE TABLE 2 FOR
MAXIMUM LENGTH
LIMITATIONS
ST-A1219-02-02
tioned space only.
charging requirements, and oil level adjustments
spelled out in this document and the outdoor
units I&O
and prior to expansion device. Verify that it is
not greater than 50 PSI
lower sub-cooling
15