507861-01
Issue 1927
Page 1 of 17
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INSTALLATION AND MAINTENANCE INSTRUCTIONS
MHP4 Series
Self-Contained Heat Pump
Manufactured By
Allied Air Enterprises LLC
A Lennox International Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in
manuals, be alert to the potential for personal injury or death.
Improper installation, adjustment, alteration, service, or
maintenance can cause injury or property damage. Refer
to this manual. For assistance or additional information,
consult a qualified installer or service agency.
WARNING
Table of Contents
Installation ...................................................................1
Operation .....................................................................9
Maintenance ..............................................................11
Accessories ...............................................................12
Wiring Diagrams ........................................................14
The installation of this appliance must conform to the requirements of the National Fire Protection Association; the National
Electrical Code, ANSI/NFPA No. 70 (latest edition) in the United States; the Canadian Electrical Code Part 1, CSA 22.1
(latest edition) in Canada; and any state or provincial laws or local ordinances. Local authorities having jurisdiction should
be consulted before installation is made. Such applicable regulations or requirements take precedence over the general
instructions in this manual.
CAUTION
(P) 507861-01
*P507861-01*
Installation
These units are not approved for mobile home
applications. Such use could result in property damage,
personal injury, or death.
WARNING
General
These instructions explain the recommended method of
installation of the MHP4 electric cooling unit and associated
electrical wiring.
This unit is designed and approved for use as a self-
contained air-to-air air conditioning system with optional
CLIMATE GUARD™ coated coils.
These instructions, and any instructions packaged with
mating components and/or accessories, should be carefully
read prior to beginning installation. Note particularly any
CAUTIONS
or
WARNINGS
in these instructions and all
labels on the units.
These instructions are intended as a general guide only,
for use by qualified personnel and do not supersede any
national or local codes in any way. Compliance with all local,
state, provincial, or national codes pertaining to this type of
equipment should be determined prior to installation.