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2019 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
General
This XP21 outdoor heat pump is designed for use with
HFC-410A refrigerant only. This unit must be installed with
an approved indoor air handler or coil. See the Lennox
XP21 Product Specifications bulletin (EHB) for approved
indoor component match ups.
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
NOTICE !
For more in-depth information, consult the Installa
tion and Service Procedures manual, available as
Corp.1031-L7 on LennoxPros.com or through the
Technical Support department at 800-453-6669.
INSTALLATION
INSTRUCTIONS
Dave Lennox Signature
®
Collection XP21 System
HEAT PUMPS
507217-02
8/2019
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal inju
ry or loss of life.
Installation and service must be performed by a licensed
professional installer (or equivalent) or service agency.
CAUTION
Before attempting to perform any service or mainte
nance, turn the electrical power to unit OFF at discon
nect switch.
STEP 1 -- SETTING THE UNIT -- Clearances
CONTROL
PANEL ACCESS
LOCATION
6 (152)
36 (914)
12 (305)
30 (762)
24
(610)
LINE SET
CONNECTIONS
ACCESS PANEL
REAR VIEW OF UNIT
48 (1219)
MINIMUM CLEARANCE BETWEEN TWO UNITS
CLEARANCE ON ALL SIDES — INCHES (MILLIMETERS)
MINIMUM CLEARANCE
ABOVE UNIT
NOTES:
Clearance to access panel must be 30
inches (762mm).
Clearance to one of the other three
sides must be 36 inches (914mm).
Clearance to one of the remaining two
sides may be 12 inches (305mm) and
the final side may be 6 inches
(152mm).
NOTICE:
Specific applications may require adjustment of the listed installation clearances to provide protection for the unit from
physical damage or to avoid conditions which limit operating efficiency. (Example: Clearances may have to be increased to
prevent snow or ice from falling on the top of the unit. Additional clearances may also be required to prevent air recirculation when
the unit is installed under a deck or in another tight space.)
FIGURE 1
