Lennox VPB Series, Installation & Operation Instructions

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 

find 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  flow)  system  that  uses  HFC-

410A refrigerant. 

Refer  to  the  Product  Specification  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-specified 

parts.

Do not use this system if any part has been 

under  water.  A  flood-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, fire or explosion may occur. 

Do not use parts other than those specified by 

Lennox or fire 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  specified  in  the  Product 

Specifications (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

VRF