PLACEMENT |
STABILIZING UNIT ON UNEVEN SURFACES
INSTALL UNIT AWAY |
FROM WINDOWS |
TWO 90_ ELBOWS INSTALLED IN LINE SET |
#10 X 1/2" LONG SELF−DRILLING SHEET METAL SCREWS
STABILIZING BRACKET (18 GAUGE METAL
WIDTH; HEIGHT AS REQUIRED)
#10 X 1−1/4" LONG HEX HD SCREW AND FLAT WASHER
Concrete slab
plastic anchors (hole drill 1/4")
COIL
BASE PAN
CORNER POST
WILL REDUCE LINE SET VIBRATION |
FIGURE 2
SLAB MOUNTING
Install unit level or, if on a slope, maintain slope tolerance of 2 degrees (or 2 inches per 5 feet [50 mm per 1.5 m]) away from building structure.
BUILDING | DISCHARGE AIR | |
STRUCTURE | ||
|
MOUNTING
SLAB
GROUND LEVEL
FIGURE 3
ELEVATED SLAB MOUNTING USING FEET
EXTENDERS
Use additional 2" SCH 40 male
2" (50.8MM) SCH 40 | threaded adapters which can | |||
FEMALE THREADED | ||||
be threaded into the female | ||||
ADAPTER | ||||
threaded | adapters to | make | ||
| ||||
| additional | adjustments | to the | |
| level of the unit. |
| ||
2" (50.8MM) |
|
|
| |
SCH 40 MALE |
|
| ||
THREADED |
|
| ||
ADAPTER |
|
|
| |
BASE
LEG DETAIL
FIGURE 4
! IMPORTANT !
Unit Stabilizer Bracket Use
(field−provided):
Always use stabilizers when unit is raised above the factory height.
(Elevated units could become unstable in gusty wind conditions.)
Stabilizers may be used on any unit installed on unstable and uneven surfaces.
FIGURE 5
STEP 2 −− REFRIGERANT PIPING −− Flush- ing Existing Line Set & Indoor Coil
Flush the existing line set per the following instruc- tions. For more information, refer to the Installation and Service Procedures manual available on Dave- Net. CAUTION −DO NOT attempt to flush and re−use ex- isting line sets or indoor coil when the system con- tains contaminants (i.e., compressor burn out).
NOTE − When installing refrigerant lines longer than 50 feet, refer to the Refrigerant Piping Design and Fabrication Guidelines manual available on DaveNet (Corp. 9351−L9), or contact the Technical Support Department Product Ap- plication group for assistance.
NOTE − For new or replacement line set installation, refer to Service and Application Note − Corp. 9112−L4 (C−91−4).
TABLE 1
REFRIGERANT LINE SET
Models | Liquid | Vapor/ | L15 Line Set |
| Line | Suction |
|
|
| Line |
|
|
|
|
|
−024, −036 | 3/8 (10) | 7/8 (22) | L15 line set sizes are |
and−048 |
|
| dependent on unit match up. |
|
|
| See XP21 Engineering |
|
|
| Handbook to determine |
|
|
| correct line set sizes. |
|
|
|
|
−060 | 3/8 (10) | 1−1/8 | Field Fabricated |
|
|
|
|
NOTE |
|
|
|
1−1/8" adapter. |
|
| |
|
|
|
|
Page 3
XC21 SERIES
