Rheem RA17 Series Installation Instructions Manual page 14

INSTALLATION
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:
• on the indoor unit
• Start components may be required depending
upon quality of voltage
• ran case heater
• Insulated liquid and suction line
For applications that are considered to have a long
line set with the outdoor unit below the indoor unit
the following is required:
• at the IDunit
• ran case heater
• Start components may be required depending
upon quality of voltage
• Inverted vapor-line trap
• Insulated liquid and suction line
14
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 1
eference igure 3
• apor line should slope toward the indoor unit
• ollow the proper line si ing, equivalent length,
charging requirements, and oil level adjustments
spelled out in this document and the outdoor
units I&O
• erify adequate sub-cooling at the ID unit prior
to throttling device
REFERENCE TABLE 2 FOR
MAXIMUM LENGTH
LIMITATIONS
ST-A1219-02-02
• ollow the proper line si ing, equivalent length,
charging requirements, and oil level adjustments
spelled out in this document and the outdoor
units I&O
• easure pressure at the liquid line service valve
and prior to expansion device. Verify that it is
not greater than 50 PSI
• or elevations greater that 25 can expect a
lower sub-cooling