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Lenox Heat Pump 50677201 manual

Brand: Lenox, product: Lenox Heat Pump 50677201

Type: Heat Pump

Total pages: 32, PDF manual size: 1 Mb


08/11 506772−01
*2P0811* *P506772-01*
Page 1
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.
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).
DEFROST OPERATION
INSTALLATION
INSTRUCTIONS
Elite
®
Series XP14 Units
HEAT PUMPS
506772−01
08/11
Supersedes 06/11
Litho U.S.A.
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 Ċ Assembled XP14 outdoor 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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