New Or Replacement Line Set - Lennox EL16XC1 Series Installation And Service Procedure

LOUVERED PANEL REMOVAL
Remove the louvered panels as follows:
1. Remove two screws, allowing the panel to swing open slight­
ly.
2. Hold the panel firmly throughout this procedure. Rotate bot­
tom corner of panel away from hinged corner post until lower
three tabs clear the slots as illustrated in detail B.
3. Move panel down until lip of upper tab clears the top slot in
corner post as illustrated in detail A.
LOUVERED PANEL INSTALLATION
Position the panel almost parallel with the unit as illustrated in
detail D with the screw side as close to the unit as possible.
Then, in a continuous motion:
1. Slightly rotate and guide the lip of top tab inward as illus­
trated in detail A and C; then upward into the top slot
of the hinge corner post.
2. Rotate panel to vertical to fully engage all tabs.
3. Holding the panel's hinged side firmly in place, close the
right-hand side of the panel, aligning the screw holes.
4. When panel is correctly positioned and aligned, insert
the screws and tighten.
Detail C
MAINTAIN MINIMUM PANEL ANGLE (AS CLOSE TO PARALLEL WITH THE UNIT
AS POSSIBLE) WHILE INSTALLING PANEL.

New or Replacement Line Set

REFRIGERANT LINE SET
This section provides information on installation or
replacement of existing line set. If new or replacement line
set is not being installed then proceed to Brazing
Connections on page 14.
IMPORTANT
Lennox highly recommends changing line set when
converting the existing system from HCFC-22 to
HFC-410A. If that is not possible and the line set is the
proper size as referenced in table 2, use the procedure
outlined under Flushing the System on page 13.
IMPORTANT! DO NOT ALLOW PANELS TO HANG ON UNIT BY TOP TAB. TAB IS FOR
ALIGNMENT AND NOT DESIGNED TO SUPPORT WEIGHT OF PANEL.
PANEL SHOWN SLIGHTLY ROTATED TO ALLOW TOP TAB TO EXIT (OR
ENTER) TOP SLOT FOR REMOVING (OR INSTALLING) PANEL.
DETAIL A
ANGLE MAY BE TOO
EXTREME
PREFERRED ANGLE
FOR INSTALLATION
Figure 5. Removing and Installing Panels
Page 11
SCREW
HOLES
LIP
DETAIL B
ROTATE IN THIS DIRECTION;
THEN DOWN TO REMOVE
If refrigerant lines are routed through a wall, then seal and
isolate the opening so vibration is not transmitted to the
building. Pay close attention to line set isolation during
installation of any HVAC system. When properly isolated
from building structures (walls, ceilings. floors), the
refrigerant lines will not create unnecessary vibration and
subsequent sounds. See figure 6 for recommended
installation practices. Also, consider the following when
placing and installing a high-efficiency outdoor unit.
Liquid lines that meter the refrigerant, such as RFC1 liquid
lines, must not be used in this application. Existing line set
of proper size as listed in table 2 may be reused. If system
was previously charged with HCFC-22 refrigerant, then
existing line set must be flushed (see Flushing on page
17).
PANEL
HOLD DOOR FIRMLY TO THE HINGED
SIDE TO MAINTAIN
FULLY-ENGAGED TABS
EL16XC1 SERIES