Lennox Elite ELS Series, Installation Instructions Manual

Page: 13 / 24

Page 13
Installation Clearances
See Unit Dimensions on page 2 for sizing mounting slab,
platforms or supports. Refer to figures 4 through 6 for
mandatory installation clearance requirements.
NOTES:
• Clearance to one of the remaining two sides may be 12
in. (305 mm) and the final side may be 6 in. (152 mm).
• A clearance of 24 in. (610 mm) must be maintained be-
tween two units.
• 48 in. (1219 mm) clearance required on top of unit.
CONTROL BOX
ACCESS
30”
(762)
SEE
NOTES
SEE
NOTES
36”
(914)
FIGURE 4. ELS072 and ELS090
Installation Clearances
CONTROL BOX
ACCESS
SEE
NOTES
SEE
NOTES
36”
30”
FIGURE 5. ELS120S4S, ELS120S4D
and ELS150 Installation Clearances
CONTROL
BOX ACCESS 30”
36”
SEE
NOTES
SEE
NOTES
FIGURE 6. ELS180 and ELS240
Installation Clearances
Line Set
Field refrigerant piping consists of liquid and suction lines
connecting the condensing unit and the indoor unit. Liquid
and suction service valves are located in a compartment
at the corner of the unit below the control box.
Piping can be routed directly from the service valves or
field supplied elbows can be added to divert the piping as
required.
Refer to table 1 for field-fabricated refrigerant line sizes for
runs up to 50 linear feet (15 m).
TABLE 1. Refrigerant Line Sizes for Runs
Up to 50 Linear Feet
Unit Liquid Line Suction Line
ELS072 3/8" (10mm) 1-1/8” (29mm)
ELS090 5/8" (16mm) 1-1/8” (29mm)
ELS120S4S 5/8” (16mm) 1-1/8” (29mm)
ELS120S4D 3/8” (10mm) 1-1/8” (29mm)
ELS150 3/8” (10mm) 1-1/8” (29mm)
ELS180 5/8” (16mm) 1-1/8” (29mm)
ELS240 5/8” (16mm) 1-1/8” (29mm)
Refrigerant Line Limitations
You may install the unit in applications that have line set
lengths of up to 50 linear feet (15 m) with refrigerant line
sizes as outlined in table 1 (excluding equivalent length of
fittings). Size refrigerant lines greater than 50 linear feet
(15m or greater) according to the Lennox Refrigerant Pip-
ing Design and Fabrication Guidelines (Corp. 9351-L9) or
latest version.
Electrical Connections
In the United States, wiring must conform with current lo-
cal codes and the current National Electric Code (NEC). In
Canada, wiring must conform with current local codes and
the current Canadian Electrical Code (CEC).