Lennox EL16XC1-030-230, EL16XC1-024-230, EL16XC1-042-230, EL16XC1-060-230, EL16XC1-047-230 Installation Instructions Manual
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INSTALLATION
©2016 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
General
This EL16XC1 outdoor air conditioner with all-aluminum
coil is designed for use with HFC-410A refrigerant only.
This unit must be installed with an approved indoor air han
dler or coil. See the Lennox EL16XC1 Product Specifica
tions bulletin (EHB) for approved indoor component match
ups.
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
IMPORTANT: Special procedures are required for clean
ing the aluminum coil in this unit. See page 15 in this in
struction for information.
INSTRUCTIONS
Elite® Series EL16XC1 Units
AIR CONDITIONER
507525-01
08/2016
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal inju
ry or loss of life.
Installation and service must be performed by a licensed
professional installer (or equivalent) or service agency.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take care
while handling this equipment and wear gloves and pro
tective clothing.
NOTICE !
For more in-depth information, consult the Installa
tion and Service Procedures manual, available as
Corp. 1503-L7 on LennoxPROs.com or through the
Technical Support department at 800-453-6669.
STEP 1 -- SETTING THE UNIT -- Clearances
See NOTES
See
NOTES
See NOTES
NOTICE: Specific applications may require adjustment of the listed installation clearances to provide protection for
the unit from physical damage or to avoid conditions which limit operating efficiency. (Example: Clearances may
have to be increased to prevent snow or ice from falling on the top of the unit. Additional clearances may also be
required to prevent air recirculation when the unit is installed under a deck or in another tight space.)
See
NOTES
Control
Box
NOTES:
Service clearance of 30 in. must be maintained on one of the sides
adjacent to the control box.
Clearance to one of the other three sides must be 36 in.
Clearance to one of the remaining two sides may be 12 in. and the
final side may be 6 in.
A clearance of 24 in. must be maintained between two units.
48 in. clearance required on top of unit.
FIGURE 1
Page 1
UNIT DIMENSIONS - INCHES (MM)
A
LIQUID LINE
CONNECTION
ELECTRICAL INLETS
SUCTION LINE
CONNECTION
C
SIDE VIEW
Model
EL16XC1-018-230
EL16XC1-024-230
EL16XC1-030-230
EL16XC1-041-230
EL16XC1-042-230
EL16XC1-048-230
EL16XC1-036-230
EL16XC1-047-230 35 (889)
EL16XC1-060-230 45 (1143)
UNIT SUPPORT
FEET
8-1/2”
(216)
A B C D E F G H I J
31 (787)
31 (787)
39 (991)
31 (787)
27
(686)
30-1/2
(775)
30-1/2
(775)
30-1/2
(775)
35-1/2
(902)
28
(711)
35
(889)
35
(889)
35
(889)
39-1/2
(1003)
4-1/2”
(108)
4-3/4”
(121)
EL16XC1 Dimensions - in. (mm)
See EL16XC1-018 base section below.
9-1/2”
(241)
13-7/8
(352)
13-7/8
(352)
13-7/8
(352)
16-7/8
(429)
UNIT SUPPORT
FEET
7-3/4
(197)
7-3/4
(197)
7-3/4
(197)
8-3/4
(222)
3-1/4
(83)
3-1/4
(83)
3-1/4
(83)
3-1/8
(79)
D
27-1/8
(689)
27-1/8
(689)
27-1/8
(689)
30-3/4
(781)
B
TOP VIEW
3-5/8
(92)
3-5/8
(92)
3-5/8
(92)
4-5/8
(117)
4-1/2
(114)
4-1/2
(114)
4-1/2
(114)
3-3/4
(95)
20-5/8
(524)
20-5/8
(524)
20-5/8
(524)
26-7/8
(683)
J
8-3/4
(222)
5-1/2”
(140)
13-1/2”
(343)
EL16XC1-018 BASE SECTION (SMALL)
8-1/4”
(210)
Page 2
E
F
G
EL16XC1-024 TO -060 BASE WITH
ELONGATED LEGS
I
H
EL16XC1 SERIES
STEP 1 -- SETTING THE UNIT (Continued)
-- Unit Placement
NOTICE !
Roof Damage!
This system contains both refrigerant and oil. Some
rubber roofing material may absorb oil, causing the
rubber to degrade. Failure to follow this notice could
result in damage to roof surface.
IMPORTANT !
Exhaust vents from dryers, water heaters and
furnaces should be directed away from the outdoor
unit. Prolonged exposure to exhaust gases and the
chemicals contained within them may cause
condensation to form on the steel cabinet and other
metal components of the outdoor unit. This will
diminish unit performance and longevity.
PLACEMENT
Install unit away from windows.
ELEVATED SLAB MOUNTING USING FEET
EXTENDERS
2” (50.8MM) SCH 40
FEMALE THREADED
ADAPTER
2” (50.8MM)
SCH 40 MALE
THREADED
ADAPTER
LEG DETAIL
Use additional 2” SCH 40 male
threaded adapters which can
be threaded into the female
threaded adapters to make
additional adjustments to the
level of the unit.
BASE
FIGURE 4
CAUTION
TWO 90° ELBOWS INSTALLED IN LINE SET
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
STRUCTURE
MOUNTING
SLAB
GROUND LEVEL
Before attempting to perform any service or mainte
nance, turn the electrical power to unit OFF at disconnect
switch.
STABILIZING UNIT ON UNEVEN SURFACES
#10 X 1/2” LONG
SELF-DRILLING
SHEET METAL
SCREWS
STABILIZING BRACKET
(18 GAUGE METAL — 2”
WIDTH; HEIGHT AS
REQUIRED)
#10 X 1-1/4” LONG
HEX HD SCREW AND
FLAT WASHER
Concrete slab — use two
plastic anchors (hole drill 1/4”)
!
IMPORTANT !
CORNER POST
COIL
BASE PAN
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 3
FIGURE 5
Page 3
EL16XC1 SERIES
WARNING
To prevent personal injury, as well as damage to panels,
unit or structure, observe the following:
While installing or servicing this unit, carefully stow all
removed panels so that the panels will not cause injury
to personnel, objects or nearby structures. Also, take
care to store panels where they will not be subject to
damage (e.g., being bent or scratched).
While handling or stowing the panels, consider any
weather conditions (especially wind) that may cause
panels to be blown around and damaged.
STEP 2 -- REFRIGERANT PIPING —
Flushing 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 DaveNet.
CAUTION - DO NOT attempt to flush and re-use exist
ing line sets or indoor coil when the system contains
contaminants (i.e., compressor burn out).
IMPORTANT !
If this unit is being matched with an approved line
set or indoor unit coil that was previously charged
with mineral oil, or if it is being matched with a coil
which was manufactured before January of 1999,
the coil and line set must be flushed prior to installa
tion. Take care to empty all existing traps. Polyol es
ter (POE) oils are used in Lennox units charged with
HFC-410A refrigerant. Residual mineral oil can act
as an insulator, preventing proper heat transfer. It
can also clog the expansion device and reduce sys
tem performance and capacity.
Failure to properly flush the system per this instruc
tion and the detailed Installation and Service Proce
dures manual will void the warranty.
WARNING
When using a high pressure gas such as
nitrogen to pressurize a refrigeration or air
conditioning system, use a regulator that
can control the pressure down to 1 or 2 psig
(6.9 to 13.8 kPa).
WARNING
Refrigerant can be harmful if it is inhaled. Refrigerant
must be used and recovered responsibly.
Failure to follow this warning may result in personal injury
or death.
WARNING
Fire, Explosion and Personal Safety Haz
ard. Failure to follow this warning could re
sult in damage, personal injury or death.
Never use oxygen to pressurize or purge
refrigeration lines. Oxygen, when exposed
to a spark or open flame, can cause fire
and/or an explosion, that could result in
property damage, personal injury or death.
WARNING
Polyol ester (POE) oils used with HFC-410A
refrigerant absorb moisture very quickly. It is very
important that the refrigerant system be kept closed
as much as possible. DO NOT remove line set caps
or service valve stub caps until you are ready to make
connections.
TABLE 1
REFRIGERANT LINE SET — INCHES (MM)
Valve Size Connections Recommended Line Sets
Model Number (-xx*)
EL16XC1-018-230AXX
EL16XC1-024-230AXX
EL16XC1-030-230AXX
EL16XC1-036-230AXX
EL16XC1-041-230-XX
EL16XC1-042-230AXX
EL16XC1-047-230-XX
EL16XC1-048-230-XX
EL16XC1-060-230-XX 3/8” (10 mm) 1-1/8” (29 mm) ** Field-fabricated N/A N/A
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 Application group for assistance.
NOTE - For new or replacement line set installation, refer to Service and Application Note - Corp. 9112-L4 (C-91-4).
Liquid Line Suction Line
3/8” (10 mm) 3/4” (19 mm)
3/8” (10 mm) 7/8” (22 mm)
* Applicable to all minor revision numbers unless otherwise specified.
** Some applications may require a field-provided 1-1/8” to 7/8” adapter.
L15 Line Set
Model
L15-41-20 20 feet (6.1 m) 89J56
L15-41-30 30 feet (9.1 m) 89J57
L15-41-40 40 feet (12.2 m) 89J58
L15-41-50 50 feet (15.2 m) 89J59
L15-65-30 30 feet (9.1 m) 89J60
L15-65-40 40 feet (12.2 m) 89J61
L15-65-50 50 feet (15.2 m) 89J62
Line Set Length Catalog Number
Page 4
EL16XC1 SERIES
STEP 2 -- REFRIGERANT PIPING -- Removing Existing Indoor Metering Device
TYPICAL EXISTING FIXED ORIFICE
1A
DISTRIBUTOR
ASSEMBLY
1 - On fully cased coils, remove the coil access and plumbing panels.
2 - Remove any shipping clamps from the liquid line and distributor as
sembly.
3 - Using two wrenches, disconnect liquid line from liquid line orifice hous
ing. Take care not to twist or damage distributor tubes during this pro
cess.
4 - Remove and discard fixed orifice, valve stem assembly (if present)
and Teflon® washer as illustrated above.
5 - Use a field-provided fitting to temporarily reconnect the liquid line to the
indoor unit's liquid line orifice housing.
(UNCASED COIL SHOWN)
DISTRIBUTOR TUBES
LIQUID LINE ORIFICE HOUSING
TEFLON® RING
FIXED ORIFICE
REMOVE AND DISCARD
WHITE TEFLON
(IF PRESENT)
®
SEAL
LIQUID LINE ASSEMBLY
(INCLUDES STRAINER)
REMOVAL PROCEDURE
OR
BRASS NUT
1B
TWO-PIECE PATCH PLATE
(UNCASED COIL ONLY)
CONNECT GAUGES AND EQUIPMENT FOR
FLUSHING PROCEDURE
2
SUCTION LINE
SERVICE VALVE
EXISTING
INDOOR
UNIT
LIQUID LINE SERVICE
VALV E
RECOVERY
CYLINDER
LIQUID
D
1 - HCFC-22 cylinder with clean refrigerant* (positioned to deliver liquid
refrigerant) to the suction service valve.
2 - HCFC-22 gauge set (low side) to the liquid line valve.
3 - HCFC-22 gauge set center port to inlet on the recovery machine with an
empty recovery tank connected to the gauge set.
4 - Connect recovery tank to recovery machine per machine instructions.
CYLINDER CONTAINING
CLEAN HCFC-22* TO BE
USED FOR FLUSHING
(Positioned to deliver liquid
A
refrigerant)
1
B
SUCTION
NEW
OUTDOOR
UNIT
C
GAUGE
MANIFOLD
LOW HIGH
OPENED
TANK
RETURN
INLET
DISCHARGE
RECOVERY MACHINE
CLOSED
TYPICAL EXISTING EXPANSION VALVE REMOVAL
PROCEDURE (UNCASED COIL SHOWN)
ORIFICE
HOUSING
EQUALIZER
LINE
STUB END
TEFLON
RING
SUCTION
EXPANSION
VALV E
®
LIQUID LINE
ASSEMBLY WITH
BRASS NUT
LINE
TEFLON
RING
®
SENSING
LINE
LIQUID
LINE
LIQUID LINE
DISTRIBUTOR
TUBES
DISTRIBUTOR
ASSEMBLY
MALE EQUALIZER
LINE FITTING
SENSING BULB
1 - On fully cased coils, remove the coil access and plumbing panels.
2 - Remove any shipping clamps from the liquid line and distributor
assembly.
3 - Disconnect the equalizer line from the expansion valve equalizer
line fitting on the suction line.
4 - Remove the suction line sensing bulb.
5 - Disconnect the liquid line from the expansion valve at the liquid line
assembly.
6 - Disconnect the expansion valve from the liquid line orifice housing.
Take care not to twist or damage distributor tubes during this
process.
7 - Remove and discard expansion valve and the two Teflon® rings.
8 - Use a field-provided fitting to temporarily reconnect the liquid line to
the indoor unit's liquid line orifice housing.
FLUSHING LINE SET
The line set and indoor unit coil must be flushed with at least the same
3
amount of clean refrigerant* that previously charged the system.
Check the charge in the flushing cylinder before proceeding.
1 - Set the recovery machine for liquid recovery and start the recovery
machine. Open the gauge set valves to allow the recovery
machine to pull a vacuum on the existing system line set and indoor
unit coil.
2 - Position the cylinder of clean HCFC-22* for delivery of liquid
3 - After all of the liquid refrigerant has been recovered, switch the
4 - Close the valve on the inverted HCFC-22 drum and the gauge set
B
refrigerant and open its valve to allow liquid refrigerant to flow into
the system through the suction line valve. Allow the refrigerant to
pass from the cylinder and through the line set and the indoor unit
coil before it enters the recovery machine.
recovery machine to vapor recovery so that all of the HCFC-22
vapor is recovered. Allow the recovery machine to pull the system
down to 0.
valves. Pump the remaining refrigerant out of the recovery
machine and turn the machine off.
*IMPORTANT - Clean refrigerant is any refrigerant in a system that has not had compressor burn out. If the system
has experienced burn out, it is recommended that the existing line set and indoor coil be replaced.
FIGURE 6
Page 5
EL16XC1 SERIES
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