E2011 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
These instructions are intended as a general guide and do not supersede local codes in any way. Consult authorities having 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
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.
IMPORTANT
This unit must be matched with an indoor coil as specified in Lennox’ Engineering Handbook. Coils previously charged with HCFC−22 must be flushed.
NOTICE TO INSTALLER
UNIT PLACEMENT
It is critical for proper unit operation to place outdoor unit on an elevated surface as described in Unit Placement section on page 7.
BRAZING LINE SET TO SERVICE VALVES
Follow the brazing technique illustrated starting on page 12 to avoid damaging the service valve’s internal seals.
DEFROST OPERATION
It is critical for proper time / temperature defrost operation to set the defrost termination pins (P1) on the defrost control prior to starting system. See Defrost System section on page 29 for further details. Also note that a low pressure bypass switch is required when operating unit below 15ºF (page 28).
INSTALLATION
INSTRUCTIONS
Elite® Series XP14 Units
HEAT PUMPS 506772−01
08/11 | Litho U.S.A. |
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Supersedes 06/11 |
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TABLE OF CONTENTS
Shipping and Packing List . . . . . . . . . . . . . . . . . . . . . . 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Model Number Identification . . . . . . . . . . . . . . . . . . . . 2 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Unit Parts Arrangement . . . . . . . . . . . . . . . . . . . . . . . . 3 Caps and Fasteners Torque Requirements . . . . . . . . 4 Operating Gauge Set and Service Valves . . . . . . . . . 4 Recovering Refrigerant from Existing System . . . . . 6 New Outdoor Unit Placement . . . . . . . . . . . . . . . . . . . 7 Removing and Installing Panels . . . . . . . . . . . . . . . . . 9 Line Set Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 10 Brazing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Indoor Refrigerant Metering Device Removal and Flushing Line Set and Indoor Coil . . . . . . . . . . . . . . . . 15
Installing New Indoor Metering Device . . . . . . . . . . . . 16 Leak Test Line Set and Indoor Coil . . . . . . . . . . . . . . . 17 Evacuating Line Set and Indoor Coil . . . . . . . . . . . . . 18 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . 19 Unit Start−Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Servicing and Weighing In Refrigerant for Units Delivered Void of Charge . . . . . . . . . . . . . . . . . . . . . . . 23
Optimizing System Refrigerant Charge . . . . . . . . . . . 25 System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Defrost System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Maintenance (Dealer and Homeowner) . . . . . . . . . . . 30 Start−up and Performance Checklist . . . . . . . . . . . . . . 32
Shipping and Packing List
Check the unit for shipping damage and listed times below are intact. If damaged, or if parts are missing, immediately contact the last shipping carrier.
1 door unit
General
The XP14 outdoor unit uses HFC−410A refrigerant. This unit must be installed with a matching indoor blower coil and line set as outlined in the XP14 Engineering Handbook. These 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.
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