1
INSTALLATION/OPERATION
INSTRUCTIONS
VRB Heat Recovery
VRF SYSTEMS
OUTDOOR UNITS
507885-03
05/2019
THIS MANUAL MUST BE LEFT WITH THE
OWNER FOR FUTURE REFERENCE
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
Shipping and Packing List
General
Check the components for shipping damage. If you
nd any damage, immediately contact the last car-
rier. Package 1 of 1 contains the following:
1 - Assembled VRB heat recovery outdoor unit
1 - Outdoor unit installation instruction
1 - Piping accessory package
The VRB heat recovery outdoor units are matched
with up to 64 indoor units per system to create a VRF
(variable refrigerant ow) system that uses HFC-
410A refrigerant.
Refer to the Product Specication bulletin (EHB)
for the proper use of these heat recovery units with
matching indoor units, mode selection boxes, branch
pipes, line sets and controls.
WARNING
!
Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, personal injury or loss of life.
Installation and service must be performed
by a licensed professional HVAC installer (or
equivalent) or service agency.
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-specied
parts.
Do not use this system if any part has been
under water. A 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.
Do not change the settings of any protection
devices installed in the outdoor unit. If the
pressure switch, thermal switch, or other
protection device is shorted or forcibly
operated, re or explosion may occur.
Do not use parts other than those specied by
Lennox or re and/or explosion may occur.
WARNING
!
IMPORTANT
The Clean Air Act of 1990 bans the intentional
venting of refrigerant (CFC’s and HCFC’s) as of
July 1, 1992. Approved methods of recovery,
recycling or reclaiming must be followed. Fines
and/or incarceration may be levied for non-
compliance.
These units must be installed as part of a
matched system as specied in the Product
Specications (EHB) bulletin.
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.
©2018 Lennox Industries Inc. Dallas, Texas, USA
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