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Corp. 1503-L7
EL16XC1
Service Literature
INSTALLATION AND SERVICE PROCEDURE
August 29, 2016
EL16XC1 (HFC-410A) SERIES UNITS WITH ALL-ALUMINUM COIL
This literature is intended as a general guide and does not
supersede local codes in any way. Consult authorities who
have jurisdiction before installation.
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause personal injury, loss of life, or
damage to property.
Installation and service must be performed by a licensed
professional installer (or equivalent) or a service agency.
IMPORTANT
This unit must be matched with an indoor coil as speci
fied in Lennox EL16XC1 Engineering Handbook. Coils
previously charged with HCFC-22 must be flushed.
WARNING
Electric Shock Hazard. Can cause injury
or death. Unit must be grounded in
accordance with national and local
codes.
Line voltage is present at all
components when unit is not in
operation on units with single‐pole
contactors. Disconnect all remote
electric power supplies before opening
access panel. Unit may have multiple
power supplies.
TABLE OF CONTENTS
Model Number Identification 2....................
Typical Serial Number Identification 2..............
Specifications 2.................................
Electrical Data 3................................
Unit Dimensions 4...............................
Unit Parts Arrangement 5........................
Operating Gauge Set and Service Valves 6.........
Outdoor Unit Placement 8........................
Removing and Installing Panels 10.................
New or Replacement Line Set 11...................
Brazing Connections 14...........................
Flushing Line Set and Indoor Coil 17................
Installing Indoor Metering Device 18................
Leak Test Line Set and Indoor Coil 19...............
Evacuating Line Set and Indoor Coil 20.............
Electrical 21.....................................
System Operation 23.............................
Maintenance 23..................................
Start-Up and Performance Checklist 24.............
Unit Electrical Diagram and Sequence
of Operations 25.................................
Servicing Units Void of Charge 27..................
Unit Start-Up 27.................................
System Refrigerant 27............................
The EL16XC1 air conditioners, which will also be referred
to in this instruction as the outdoor unit, use HFC-410A
refrigerant. This outdoor unit must be installed with a
matching indoor unit and line set as outlined in the Lennox
EL16XC1 Engineering Handbook.
This outdoor unit is designed for use in systems that use
one of the following refrigerant metering devices:
Expansion valve (TXV)
Fixed orifice
IMPORTANT: Special procedures are required for
cleaning the aluminum coil in this unit. See page 23 in this
manual for information.
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