Lennox VCFA012S4, VCFA015S4, VCFA024S4, VCFA030S4, VCFA018S4 Installation Instructions Manual
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©2017 Lennox Industries Inc.
THIS MANUAL MUST BE LEFT WITH THE OWNER FOR
FUTURE REFERENCE
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 licensed professional HVAC installer, service agency
or the gas supplier.
Failure to follow safety warnings and these instructions exactly could result in property damage, dangerous operation, serious injury, or death.
Any additions, changes, or conversions required in
order for the appliance to satisfactorily meet the application needs must be made by a licensed professional HVAC installer (or equivalent) using factoryspecifi 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.
Dallas, Texas, USA
!
WARNING
INSTALLATION
INSTRUCTIONS
VCFA Convertible Ceiling /
Floor-Mount Indoor Units
VRF SYSTEMS -- Ceiling/Floor Indoor Units
507444-05
03/2017
General
The VCFA ceiling/fl oor-mount non-ducted 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. The units can be suspended from
the ceiling in a horizontal position or installed on the wall
near the fl oor in a vertical position.
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 codes in any way. Consult authorities
having jurisdiction before installation.
Shipping and Packing List
Check the components for shipping damage. If you fi nd any
damage, immediately contact the last carrier.
Package 1 of 1 contains the following:
1 - Assembled indoor unit
4 - Nuts
4 - Washers
2 - Suspension brackets (ceiling mount) NOTE - not pro-
vided with VCFA054
2 - Mounting brackets (wall/fl oor mount)
1 - Resistor
1 - Brass fl are nut
1 - Condensate drain fl exible pipe
1 - Condensate drain insulation sleeve (VCFA054 only)
1 - Water level switch cable
1 - Installation manual
!
CAUTION
As with any mechanical equipment, personal injury
can result from contact with sharp sheet metal edges.
Be careful when you handle this equipment.
1
Safety Requirements
!
WARNING
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.
Model Number Identifi cation
V CF A 012 S 4 - 1 P
Brand/Family
V = Variable Refrigerant Flow (VRF)
Unit Type
CF = Ceiling/Floor-Mount Non-Ducted Indoor Models
Major Design Sequence
A = 1st Generation
Nominal Cooling Capacity - Btuh
012 = 12,000 Btuh
015 = 15,000 Btuh
018 = 18,000 Btuh
024 = 24,000 Btuh
030 = 30,000 Btuh
036 = 36,000 Btuh
048 = 48,000 Btuh
054 = 54,000 Btuh
System Piping
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 fi gures
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 confi rm 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 insuffi cient capacity,
equipment failure, warranty being made void and the
refusal to commission the system.
Voltage
P = 208/230V-1 phase-60hz
Minor Design Sequence
1 = 1st Revision
2 = 2nd Revision
3 = 3rd Revision
Refrigerant Type
4 = R-410A
Cooling Effi ciency
S = Standard Effi ciency
2
Dimensions
VCFA012S4, VCFA015S4, VCFA018S4, VCFA024S4
MOUNTING
HOLES (4)
26
(660)
7-7/8
(200)
VCFA030S4
MOUNTING
HOLES (4)
7-1/8
(181)
5-1/4
(134)
3-7/8
(97)
LIQUID
PIPE
3-7/8
2-1/2
GAS
PIPE
(98)
(64)
1-5/8 (41)
1-3/8 (35)
8-1/8 (207)
35-3/4 (908)
39 (991)
REAR VIEW
BOTTOM VIEW
DRAIN OUTLET
(Rear)
15-3/4 (401)14-5/8 (371)
DRAIN
OUTLET
(Either Side)
8-1/8
(206)
SIDE VIEW
26
(660)
7-7/8
(200)
7-1/8
5-1/4
(181)
(134)
1-1/2 (38)
3-7/8
(98)
2-1/2
3-7/8
(64)
(97)
LIQUID
PIPE
GAS
PIPE
NOTE - Fresh Air intake not available on VHIA030 and smaller units.
1-5/8 (41)
8-1/8 (207)
47 (1195)
50-3/8 (1280)
REAR VIEW
BOTTOM VIEW
3
21-1/2 (547)20-1/4 (515)
DRAIN OUTLET
(Rear)
DRAIN
OUTLET
(Either Side)
8-1/8
(206)
SIDE VIEW
VCFA036S4, VCFA048S4
MOUNTING
HOLES (4)
26-3/4
(679)
10
12-7/8
(255)
(185)
DRAIN
OUTLET
(Either Side)
5-3/4
(146)
4-1/2
(116)
GAS
PIPE
VCFA054S4
HANGING
BRACKETS (4)
26-3/4
(680)
4-1/2
(113)
LIQUID
PIPE
8-5/8
(220)
2-3/4 (70)
60-3/4 (1543)
65-3/4 (1670)
REAR VIEW
BOTTOM VIEW
42-1/8 (1070)
28-1/2 (725)24-7/8 (631)
FRESH AIR INTAKE
4 (105) dia.
9-5/8
(244)
SIDE VIEW
15
(381)
6-3/4
(172)
2-5/8 (67)
5
(127)
6-1/8
4-7/8
(157)
(124)
11-1/4
(285)
LIQUID
LINE
SUCTION
LINE
DRAIN OUTLET
65-1/2 (1613)
65-3/4 (1670)
REAR VIEW
BOTTOM VIEW
4
11-1/4
(285)
SIDE VIEW
FRESH AIR INTAKE
4 (105) dia.
Clearances
CEILING APPLICA TIONS
3/4”
(19)
WALL
1”
(25.4)
SIDE VIEW
DROP CEILING
SUPPLY
AIR
CEILING AND FLOOR APPLICATIONS
WALL WALL
24
(610)
FRONT VIEW
24”
(610)
FLOOR APPLICA TIONS
Unit Flush with Wall
SUPPLY
AIR
1”
(25.4)
5
(Service Clearance
SIDE VIEW
24”
(610)
Front of Unit)
FLOOR
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