2024 Lennox Industries Inc.
©
Dallas, Texas, USA
General .....................................................................................1
Included Parts...........................................................................2
System Dimensions ..................................................................5
Outdoor Units ................................................................................................... 5
Indoor Units ...................................................................................................... 8
Wall Mounting Plates ........................................................................................ 9
Outdoor Unit ................................................................................................... 11
Indoor Unit ...................................................................................................... 11
Prevailing Winds ............................................................................................. 16
Leak Test ........................................................................................................ 19
Outdoor Unit .................................................................................................. 20
Indoor Unit ...................................................................................................... 20
Unit Start-Up ...........................................................................28
Troubleshooting ......................................................................29
I-Clean Feature.......................................................................30
Test Run .................................................................................31
Pre-Checks ..................................................................................................... 31
Procedure ....................................................................................................... 31
Procedure ....................................................................................................... 31
Sequence of Operation .................................................................................. 31
Humidity Control .....................................................................32
INSTALLATION
INSTRUCTIONS
MLB/MPC Outdoor Units
with MWMC Indoor Units
SINGLE-ZONE MINI-SPLIT SYSTEMS
(115V and 208/230V) --
Wall-Mounted Indoor Unit
507545-07 04/2024
Supersedes 02/2024
THIS MANUAL MUST BE LEFT WITH THE OWNER
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, ser vice or
maintenance can cause property damage, personal
injury or loss of life.
Installation and service must be performed by a li censed
professional HVAC installer (or equivalent) or a service
agency.
WARNING
The clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs, and HFCs) as of July, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for non-compliance.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
General
These instructions are intended as a general guide and
do not supersede local or national codes in any way.
Authorities having jurisdiction should be consulted before
installation.
The MWMC wall-mounted indoor units are matched with
an outdoor heat pump unit to create a mini-split system
that uses HFC-410A refrigerant.