Lennox 14HPX?018 Installation Instructions Manual
Download Installation instructions manual of Lennox 14HPX?018 Heat Pump for Free or View it Online on All-Guides.com. This version of Lennox 14HPX?018 Manual compatible with such list of devices, as: 14HPX?018, 14HPX?024, 14HPX?030, 14HPX?042, 14HPX?048
Brand: Lennox
Category: Heat Pump
Type: Installation instructions manual
Model: Lennox 14HPX?018 , Lennox 14HPX?024 , Lennox 14HPX?030 , Lennox 14HPX?036 , Lennox 14HPX?042 , Lennox 14HPX?048 , Lennox 14HPX?060
Pages: 24
05/08 505,243M
*2P0508* *P505243M*
Page 1
2008 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, ser-
vice or maintenance can cause personal injury, loss
of life, or damage to property.
Installation and service must be performed by a
qualified installer or service agency.
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.
IMPORTANT
The Clean Air Act of 1990 bans the intentional vent-
ing of refrigerant (CFC’s, HFC’s, and HCFC’s) as of
July 1, 1992. Approved methods of recovery, recycl-
ing or reclaiming must be followed. Fines and/or in-
carceration 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
INSTALLATION
INSTRUCTIONS
14HPX Series Units
HEAT PUMP UNITS
505,243M
05/08
Supersedes 04/08
Table of Contents
14HPX Outdoor Unit 1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List 1. . . . . . . . . . . . . . . . . . . . . .
Unit Dimensions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information 3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Unit 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Piping 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flushing Existing Line Set and Indoor Coil 8. . . . . . . .
Refrigerant Metering Device 9. . . . . . . . . . . . . . . . . . . .
Manifold Gauge Set 10. . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Valves 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leak Testing 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evacuation 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Charge 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Indoor Airflow 12. . . . . . . . . . . . . . . . . . . . . . .
Setup for Checking and Adding Charge 13. . . . . . . . . .
System Operation 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defrost System 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories 23. . . . . . . . . . . . . . . . . . . . . . . . . .
Homeowner Information 23. . . . . . . . . . . . . . . . . . . . . . . .
Thermostat Operation 24. . . . . . . . . . . . . . . . . . . . . . . . . .
14HPX Check List 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14HPX Outdoor Unit
14HPX Merit
®
outdoor units use HFC−410A refrigerant.
This unit must be installed with a matching indoor blower
coil and line set as outlined in the Lennox Engineering
Handbook. 14HPX outdoor units are designed for use in
expansion valve systems only. They are not designed to be
used with other refrigerant flow control devices. An expan-
sion valve approved for use with HFC−410A must be or-
dered separately and must be installed prior to operating
the unit.
Shipping and Packing List
1 − Assembled 14HPX outdoor unit
Check the unit components for shipping damage. If you
find any damage, immediately contact the last carrier.
Litho U.S.A.