1
©2015 Lennox Industries Inc.
Dallas, Texas, USA
INSTALLATION
INSTRUCTION
VRF SYSTEMS -- Indoor Units
507462-02
10/2015
THIS MANUAL MUST BE LEFT WITH THE OWNER FOR
FUTURE REFERENCE
Shipping and Packing List
General
Check the components for shipping damage. If you fi nd any
damage, immediately contact the last carrier.
Package 1 of 2 contains the following:
1 - Assembled indoor unit with mounting bracket
8 - Mounting bracket securing screws
8 - Plastic screw anchors
1 - Roll tape
1 - Flexible condensate drain pipe
1 - Wall sleeve
1 - Plastic cover for wall sleeve
1 - Resistor
1 - Brass fl are nut
1 - Installation manual
The VWMA wall-mounted indoor units are matched with an
outdoor heat recovery or heat pump unit to create a VRF
(variable refrigerant fl ow) system that uses HFC-410A
refrigerant.
Refer to the Product Specifi cation bulletin (EHB) for the
proper use of these indoor units with specifi c heat pumps,
heat recovery units, mode switching devices, branch
pipes, line sets and controls.
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.
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, service agency
or the gas supplier.
Failure to follow safety warnings and these instruc-
tions exactly could result in property damage, dan-
gerous operation, serious injury, or death.
Any additions, changes, or conversions required in
order for the appliance to satisfactorily meet the ap-
plication needs must be made by a licensed profes-
sional HVAC installer (or equivalent) using factory-
specifi ed parts.
Do not use this system if any part has been under
water. A fl ood-damaged appliance is extremely dan-
gerous. Immediately call a licensed professional
HVAC service technician (or equivalent) to inspect
the system and to replace all controls and electrical
parts that have been wet, or to replace the system, if
deemed necessary.
The State of California has determined that this
product may contain or produce a chemical or
chemicals, in very low doses, which may cause
serious illness or death. It may also cause cancer,
birth defects, or reproductive harm.
CAUTION
!
As with any mechanical equipment, personal injury
can result from contact with sharp sheet metal edges.
Be careful when you handle this equipment.
VWMA Wall-Mounted Units
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
IMPORTANT!
The Clean Air Act of 1990 bans the intentional
venting of refrigerant (CFCs, HCFCs and HFCs)
as of July 1, 1992. Approved methods of recovery,
recycling or reclaiming must be followed. Fines and/
or incarceration may be levied for noncompliance.
These units must be installed as a part of a matched
system as specifi ed in the Product Specifi cations
(EHB) bulletin.
Not for use with V0CTRL90 Auxiliary Heat Relay.
See Service and Application Note VRF-15-01.
