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© 2006 Lennox Industries Inc.
Corp. 0619−L4
13HPX
Service Literature
1.5 to 5 ton
Revised 04−2009
13HPX SERIES UNITS
The 13HPX is a residential split-system heat pump. The
series is designed for use with expansion valves (TXV) and
R−410A refrigerant. All 13HPX units utilize scroll compressors.
13HPX series units are available in 1 1/2, 2, 2 -1/2, 3, 3
-1/2, 4 and 5 ton capacities. All major components (indoor
blower and coil) must be matched according to Lennox rec-
ommendations for the compressor to be covered under
warranty. Refer to the Engineering Handbook for approved
system matchups.
This manual is divided into sections which discuss the
major components, refrigerant system, charging proce-
dure, maintenance and operation sequence.
Information contained in this manual is intended for use by
qualified service technicians only. All specifications are subject
to change.
ELECTROSTATIC DISCHARGE (ESD)
Precautions and Procedures
CAUTION
Electrostatic discharge can affect electronic
components. Take precautions during unit instal-
lation and service to protect the unit’s electronic
controls. Precautions will help to avoid control
exposure to electrostatic discharge by putting
the unit, the control and the technician at the
same electrostatic potential. Neutralize electro-
static charge by touching hand and all tools on an
unpainted unit surface before performing any
service procedure.
WARNING
Refrigerant can be harmful if it is inhaled. Refrigerant
must be used and recovered responsibly.
Failure to follow this warning may result in person-
al injury or death.
CAUTION
In order to avoid injury, take proper precaution when
lifting heavy objects.
Table of Contents
Specifications / Electrical Data 2. . . . . . . . . . . . . . . . . . .
I Unit Components 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
II Refrigerant System 9. . . . . . . . . . . . . . . . . . . . . . . . . . .
III Charging 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IV Maintenance 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V Brazing Procedure 14. . . . . . . . . . . . . . . . . . . . . . . . . . .
VI Diagrams 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MODEL NUMBER IDENTIFICATION
Unit Type
HP = Heat Pump Outdoor Unit
Refrigerant
X = R−410A
Nominal Cooling Capacity
018 = 1.5 tons
024 = 2 tons
030 = 2.5 tons
036 = 3 tons
042 = 3.5 tons
048 = 4 tons
060 = 5 tons
061 = 5+ tons
Minor Revision Number
Nominal SEER
Voltage
230 = 208/230V−1phase−60hz
13 HP X − 024 − 230 − 2
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