2
Model Number Identification
Safety Requirements
ELECTRICAL SHOCK, FIRE, OR EXPLOSION HAZARD.
Do not touch the unit or the controller if your hands are wet.
DO NOT spray water on the indoor unit for any reason.
Do not replace a fuse with a fuse of a different rating. Do not use a jumper wire to replace a fuse. Do not insert
your hands, tools or any other item into the air intake or air outlet at either the indoor or outdoor unit.
Do not allow children to operate the system.
WARNING
!
V OS B 036
H
4 - 3 P
Brand/Family
V = Variable Refrigerant Flow (VRF)
Unit Type
OS = Outside Air Ducted Indoor Models
Major Design Sequence
B = 2nd Generation
Cooling Efficiency
H = High Efficiency
Refrigerant Type
4 = R-410A
Controls Protocol
3 = Phase 3
Voltage
P = 208/230V-1 phase-60hz
Nominal Cooling Capacity Btuh
036 = 36,000 Btuh
048 = 48,000 Btuh
054 = 54,000 Btuh
072 = 72,000 Btuh
096 = 96,000 Btuh
CAUTION
VRF system piping is customized for each installation.
The LVSS piping report is an engineered design that
must be followed. The piping diagram or diagrams
included within the LVSS report have been prepared
based on the information provided to the Lennox VRF
applications department.
When the indicated lengths change from the figures
stated within the report, it is imperative that prior to the
commencement of the refrigerant pipe work installation,
Lennox VRF applications department are informed of
these proposed changes.
Upon receipt of this new information the Lennox VRF
applications department will confirm any changes that
may be applicable to this installation. If changes are
required, a new piping diagram will be produced and will
supersede all other previously provided documents.
Failure to provide this information regarding changes
to the original design may lead to insufficient capacity,
equipment failure, warranty being made void and the
refusal to commission the system.
NOTICE
When using as part of a VRF Heat Recovery system,
refer to the specific pipe connection details located in
the Mode Selection Box installation manual and the
detailed drawing on page 16 of this manual.
System Piping
NOTE -
Only Lennox VRF indoor units will work with Lennox VRF outdoor units and associated mechanical
equipment. Lennox Mini Split indoor units are similar in appearance but must not be connected to a Lennox VRF
refrigerant circuit. Please refer to model numbers to confirm compatibility. Model numbers for Lennox VRF units
start with a “V” and model numbers for Lennox Mini-Splits start with a “M”.
