E20 Lennox Industries Inc.
Dallas, Texas, USA
These instructions are intended as a general guide and do not supersede local codes in any way. Consult authorities having jurisdiction before installation.
RETAIN THESE INSTRUCTIONS FOR FUTURE
REFERENCE
NOTICE TO INSTALLER
BRAZING LINE SET TO SERVICE VALVES
It is imperative to follow the brazing technique illustrated starting on page 11 to avoid damaging the service valve’s internal seals.
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
The Clean Air Act of 1990 bans the intentional venting of refrigerant (CFCs, HFCs, and HCFCs) as of July 1, 1992. Approved methods of recovery, recycling or reclaiming must be followed. Fines and/or incarceration may be levied for noncompliance.
INSTRUCTIONS
Elite® Series XP16 Units
HEAT PUMPS 506640−01
12/10 | Litho U.S.A. |
Supersedes 11/10 |
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TABLE OF CONTENTS
Shipping and Packing List . . . . . . . . . . . . . . . . . . . . . . 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Model Number Identification . . . . . . . . . . . . . . . . . . . . 2 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Typical Parts Arrangement . . . . . . . . . . . . . . . . . . . . . . 3 Caps and Fasteners Torque Requirements . . . . . . . . 3 Operating Gauge Set and Service Valves . . . . . . . . . 3 Recovering Refrigerant from Existing System . . . . . 5 New Outdoor Unit Placement . . . . . . . . . . . . . . . . . . . 6 Removing and Installing Panels . . . . . . . . . . . . . . . . . 8 Line Set Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 9 Brazing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Indoor Refrigerant Metering Device Removal and Flushing Line Set and Indoor Coil . . . . . . . . . . . . . . . . 14
Installing New Indoor Metering Device . . . . . . . . . . . . 15 Leak Test Line Set and Indoor Coil . . . . . . . . . . . . . . . 16 Evacuating Line Set and Indoor Coil . . . . . . . . . . . . . 17 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . 18 Unit Start−Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Servicing and Weighing In Refrigerant for Units Delivered Void of Charge . . . . . . . . . . . . . . . . . . . . . . . 24
Optimizing System Refrigerant Charge . . . . . . . . . . . 26 System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Defrost System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Two−Stage Modulation Compressors Checks . . . . . . 40 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
IMPORTANT
This unit must be matched with an indoor coil as specified in Lennox XP16 Engineering Handbook. Coils previously charged with HCFC−22 must be flushed.
CAUTION
Physical contact with metal edges and corners while applying excessive force or rapid motion can result in personal injury. Be aware of, and use caution when working near these areas during installation or while servicing this equipment.
Shipping and Packing List
Check unit for shipping damage. Consult last carrier immediately if damage is found.
1 − Assembled outdoor unit
General
The XP16 outdoor unit uses HFC−410A refrigerant. This unit must be installed with a matching indoor blower coil and line set as outlined in the XP16 Lennox Engineering Handbook. Elite® Series outdoor units are designed for use in check / expansion valve (CTXV) systems only and are not to be used with other refrigerant flow control devices. An indoor coil check / expansion valve approved for use with HFC−410A must be ordered separately and installed prior to operating the unit.
12/10 | Page 1 | 506640−01 | |
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