Gree KWCA09A0 General instructions

HIGHWALLCOOLINGONLYANDHEATPUMP
DUCTLESSSPLITSYSTEMS
P/N# 240006537 Rev. 1.0 [01/07]
Enviromaster International LLC
5780 Success Dr.
Rome, NY 13440
www.enviromaster.com
INSTALLATION,OPERATIONANDMAINTENANCEMANUAL
An ISO 9001-2000 Certified Company
9,000 & 12,000
STRAIGHTCOOL/HEATPUMP*
Nominal Circuit Capacities:
9,000, 12,000, 18,000, 24,000 Btuh units.
24,000
18,000


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EnviroAir High Wall Ductless Split Systems 2
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
P/N 240006537 , Rev. 1.0 [01/07]
Shipping Damage MUST be Reported to the Carrier IMMEDIATELY!!!
Examine the carton for signs of damage if any is evident open packaging and
check the unit for shipping damage.
This manual is intended as an aid to a qualified service personnel for proper installation,
operation, and maintenance of EMI EnviroAir high efficiency R-410A Ductless Split
Systems. Carefully read these instructions before attempting installation or operation.
Failure to follow these instructions may result in improper installation, operation, or
maintenance, possibly resulting in fire, electrical shock, property damage, personal
injury, or death.
SAFETY INSTRUCTIONS
Read all instructions before using
the EMI EnviroAir high efficiency
system. Install or locate this sys-
tem only in accordance with these
instructions. Use this system only
for its intended use as described in
this manual.
Check rating plate for correct system
voltage before installing. Installa-
tion and operation of a system with
the incorrect voltage may result in
malfunction or other issues and will
void the warranty.
The EMI EnviroAir system must
be connected only to a properly
grounded electrical supply. Do not
fail to properly ground this unit.
Turn off the electrical supply be-
fore servicing the EMI EnviroAir
system.
Do not use the EMI EnviroAir
system if it has damaged wiring, is
not working properly, or has been
damaged or dropped.
[Save These Instructions]
TO THE INSTALLER
(1) Retain this manual for future reference.
(2) Before leaving the premises, review this
manual to be sure the unit has been
installed correctly and run the unit for
one complete cycle to make sure it
functions properly.
To obtain technical service or warranty
assistance during or after the installation
of this unit, check our website @ www.
enviromaster.com or call your installing
contractor or distributor. Our technical
service department may be contacted at
1-800-228-9364.
When calling for assistance, please have
the following information ready:
• Indoor Unit
Model Number___________________
• Indoor Unit
Serial Number___________________
• Outdoor Unit
Model Number___________________
• Outdoor Unit
Serial Number___________________
• Date of installation________________
This symbol is an indication of
Important Safety Information.
! !

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EnviroAir High Wall Ductless Split Systems 3
INSTALLER SUPPLIED ITEMS
• Main System Breaker: Sized per unit
requirements, to be mounted adjacent
to outdoor unit.
• Mounting Hardware: Wall anchors,
condenser pad.
• Vacuum Pump
• Gauge Set : R-410 specific.
• High Voltage Interconnect Wiring:
14 AWG wiring from outdoor unit to in-
door unit for power and control. *
• Refrigerant : R-410A required for addi-
tional line sets beyond 16 ft.
* Can be purchased through the factory as an
accessory, (part of the Tube Set Kit below)
Tampering with the EMI EnviroAir
cooling system is dangerous and
may result in serious injury or
death. Tampering voids all warran-
ties. Do not attempt to modify or
change these units in any way.
! !
DANGER
ACCESSORY
Tube-Set Kit consisting of:
• Refrigerant Line Set - 25 feet of
suction and liquid line, both fully in-
sulated, and flare fittings supplied
on both ends.
• Interconnecting High Voltage Wiring
- 25 feet supplied.
• Additional Condensate Tubing - 6 feet
extra supplied.
FACTORY SUPPLIED ITEM
• Matched System Consisting Of:
Evaporator section and condenser sec-
tion with remote control.
ITEMS FOR CONSIDERATION
Application:
Check the application of the unit prior to
installation, certain applications require
additional components or installation pa-
rameters, such as the need for external
condensate pump or if the system will
need to perform low ambient cooling at
outdoor temperatures below 60°F.
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
PRODUCT DESCRIPTION
The EnviroAir system is an efficient duct-
less split air conditioning system with cool-
ing capacities from 9,000-24,000 Btuh and
heat pump capacity of 9,000-24,000 Btuh.
Designed for quiet operation and boasting
compact dimensions, the EnviroAir sys-
tem includes advanced features like auto-
restart, full feature remote control.
Comprised of three standard components
the indoor high wall evaporator, the out
door condensing unit, and an infrared
handheld remote control. The EnviroAir
system is engineered to the highest per-
formance and reliability standards. The
evaporator is equipped with permanent
washable air filters as well as motorized
air sweep for enhanced air circulation, and
the condensing unit is equipped as stan-
dard with a high efficiency rotary compres-
sor.
EMI recommends the EnviroAir system
for residential and light commercial cool-
ing applications. The EnviroAir system will
operate in standard cooling mode down to
60°F outdoor temperature.
The EnviroAir system is backed with the
standard limited warranty that applies
to all EMI equipment. For a copy of this
limited warranty, please contact EMI cus-
tomer service or refer to the website at
www.enviromaster.com.

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EnviroAir High Wall Ductless Split Systems 4
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
CHOOSING UNIT MODEL
EnviroAir Outdoor Unit Nomenclature
Position 1 2 3 4 5 6 7 8 9 10 11
Example K 1 C A 9 0 0 0 A 0 0
EnviroAir Unit
Number of Zones
1 = Single Zone
Duty
C = Cooling Only
H = Heat Pump
Design Revision
A = R-410A
Zone 1 Capacity
9 = 9,000 Btuh
2 = 12,000 Btuh
8 = 18,000 Btuh
4 = 24,000 Btuh
Not Used
Not Used
Not Used
Voltage
A = 115-1-60
(9 and 2 only)
D = 208/230-1-60
(8 and 4 only)
Controls
0 = Standard
Condenser Coil
0 = Standard Al/Cu
EnviroAir Indoor Unit Nomenclature
Position 1 2 3 4 5,6 7 8
Example K W C A 09 A 0
EnviroAir Unit
Unit Style
W = High Wall Unit
Duty
C = Cooling Only
H = Heat Pump
Design Revision
A = R-410A
Capacity
09 = 9,000 Btuh
12 = 12,000 Btuh
18 = 18,000 Btuh
24 = 24,000 Btuh
Voltage
A = 115-1-60
(09 and 12 only)
D = 208/230-1-60
(18 and 24 only)
Not Used
MODELS OFFERED
Indoor Model # Outdoor Model # Duty Capacity Btuh Voltage
KWCA09A0 K1CA9000A00 Cooling Only 9,000 115-1-60
KWCA12A0 K1CA2000A00 Cooling Only 12,000 115-1-60
KWCA18D0 K1CA8000D00 Cooling Only 18,000 208/230-1-60
KWCA24D0 K1CA4000D00 Cooling Only 24,000 208/230-1-60
KWHA09A0 K1HA9000A00 Heat Pump 9,000 115-1-60
KWHA12A0 K1HA2000A00 Heat Pump 12,000 115-1-60
KWHA18D0 K1HA8000D00 Heat Pump 18,000 208/230-1-60
KWHA24D0 K1HA4000D00 Heat Pump 24,000 208/230-1-60

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EnviroAir High Wall Ductless Split Systems 5
PRE INSTALLATION
Determine the best location for mounting
the indoor unit, it must be located a mini-
mum of 4 ft (6 ft or more recomended) from
the floor and no less than 6” from ceiling.
Pay attention to the air circulation in the
room, 9,000 & 12,000 Btuh units throw air
15ft, 18,000 & 24,000 Btuh units throw air
25ft, ensure no obstacles to airflow exist.
Locate the indoor and outdoor units as close
together as possible, maximum line set run
and lift MUST NOT BE EXCEEDED. Deter-
mine how the interconnect piping, wiring
and condensate hose are to be run.
Ensure that all panels can be removed for
service as required.
Certification:
All EnviroAir Ductless Splits are certified
by UL under UL Standard 1995. Per-
formance is varified by CSA under ARI
210/240 test standard.
Unit Max Line
Set Run
Max
Vertical
Lift
KWCA/K1CA 09/12 35 Feet 17 Feet
KWCA/K1CA 18/24 50 Feet 17 Feet
KWHA/K1HA 09/12 35 Feet 17 Feet
KWHA/K1HA 18/24 50 Feet 17 Feet
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
CONTROLS AND COMPONENTS
Units are supplied with a wireless remote
control, which communicates with the unit
microprocessor control. The return air
temperature sensor mounted in the in-
door unit provides input to the control for
system operation.
Several modes of operation are available
to the end user depending on the type of
comfort required. All unit operating func-
tions are controlled via the remote con-
trol. Refer to “System Operation” section
of this manual.
OPTIONAL CONTROLS AND
COMPONENTS
Low Ambient Control:
Please consult the factory for availability of
approved method of low ambient cooling
operation.
Condensate Pump:
It is recommended to use the supplied
condensate drain hose in a gravity fed
method whenever possible. If this can
not be done then a field installed pump
that is external to the evaporator would
be required.

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EnviroAir High Wall Ductless Split Systems 6
Remove indoor and outdoor units from
the carton/box. Indoor unit carton con-
tains, remote control and batteries, en-
sure these are kept in a safe place during
installation.
6” from ceiling minimum
CEILING
WALL
WALL
8”
from wall
minimum
8”
from wall
minimum
4ft from fl oor (minimum)
6ft plus from fl oor (optimum)
FLOOR
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
INDOOR UNIT INSTALLATION
Follow Instructions, failure to follow
instructions may cause possible mal-
function and void any warranty.
! !
CAUTION
Locate area to install indoor unit the
unit should be located a minimum of 6 ft.
from the fl oor and 6” from the ceiling.
Choose an area where the wall is plumb
and determine how to best to run the unit
interconnects.
Ensure no obstacles to airfl ow are directly
in front of the unit, for a minimum of 12 ft
for 9,000/12,000 Btuh units and 16 ft for
18,000/24,000 Btuh units.
Do not install the Indoor unit units in areas
exposed to high humidity (Relative Hu-
midity of 80% or more), direct sunlight and
direct heat from stoves or other devices.

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EnviroAir High Wall Ductless Split Systems 7
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
INDOOR UNIT INSTALLATION
Prepare the evaporator for mounting
by removing the mounting bracket from
the rear of the indoor unit. Use a Phillips
head screwdriver to remove the unit pipe
strap. If the unit is a heat pump the de-
frost sensor also must be undone from its
retainer.
If mounting the unit on an outside wall
measure from the edges of the unit to the
center of the line set 90° bend to locate the
the center of the wall penetration. Drill a
3” ø hole through the wall. Angle the wall
penetration slightly down towards the out-
side to assist in draining the condensate
away from the unit.
The indoor unit weighs a maximum of
20 Lbs. Use wall anchors to secure the
mounting bracket to a wall stud and en-
sure that the wall is capable of holding the
weight of the unit.
Be sure mounting bracket is level, so that
the condensate can drain properly.
remove mounting bracket knockout
knockout
mounting
bracket
on wall
3” ø hole
If mounting the unit on an inside wall, use
the knockouts provided on the left and
right sides of the unit to route the piping
and wiring connections through.
Note: Prepare all wiring and piping
connections before hanging the unit
on the mounting bracket.

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EnviroAir High Wall Ductless Split Systems 8
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
Prepare unit line set connections
Rotate refrigerant line stubs gently to 90°
(if mounting on an outside wall). For oth-
er line set configurations align the stubs
as required.
INDOOR UNIT INSTALLATION
Feed the 14 AWG interconnect wiring
between indoor and outdoor through
the unit electrical connection (maxi-
mum number of 6 wires is required) (if
required by local codes an electrical
connector can be attached to the rear
of the unit). Tape the loose wire to the
line set stubs. (See Electrical Wiring In-
stall section.) These two tips save time
and prevent damage to the stubs when
mounting the indoor unit.
duct tape
Tip: Use Duct tape to tape the Con-
densate hose (make sure it is below
the Line set stubs) and the defrost
sensor (heat pump only). This makes
it easier to guide them through the
hole in the wall.
Very Important! Make sure the de-
frost sensor wire is run and connected
between the indoor and outdoor units,
or the heat pump system will not oper-
ate in heat mode. Refer to “Heat Pump
Wiring” section of this manual.
HEAT PUMP SYSTEMS

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EnviroAir High Wall Ductless Split Systems 9
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
INDOOR UNIT INSTALLATION
Install unit on mounting bracket
Feed the line set stubs/condensate hose/
wiring connections through a ø 3” hole in
the wall.
Position the evaporator so that the “key”
slots on the back of the unit slide onto the
tabs on top of the mounting bracket. Then
push the lower portion of the evaporator
against the bracket until it latches into the
mounting bracket.
Indoor unit is now installed, it should be
plumb, level and fl ush with the wall. In-
sure that the line set stubs are completely
18,000
Btuh shown
OUTDOOR UNIT INSTALLATION
Locate Outdoor unit
Select a location with proper ventilation,
minimizing recirculation possibility. Do not
install the outdoor unit in a location ex-
posed to high winds (fi eld fabricated and
installed wind baffl e may be required).
Ensure location does not impede access
around unit and pose a disturbance to
neighboring areas.
Clearances for the Outdoor unit:
12” Minimum
12” Minimum
48” Minimum
12” Minimum
Service
Valves
Note: Consult factory if
minimum clearances can’t
be maintained.
Outdoor Unit
Rear
Condenser Fan
Front
Airfl ow
Install the outdoor unit on a condenser
service pad. If unit is a heat pump ex-
tend feet to raise 6” to allow for defrost
to drain away.
through the wall penetration, also check
that the wall is plumb. The unit must be
level and plumb for proper condensate
removal.

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EnviroAir High Wall Ductless Split Systems 10
OUTDOOR UNIT INSTALLATION
ENVIROAIR HIGH WALL DUCTLESS SPLIT SYSTEMS
Refrigerant Line Set Piping
Interconnecting line set between the outdoor
unit and the indoor unit, must have both re-
frigerant lines insulated as the expansion
device is located in the outdoor unit.
Gently bend the line set stubs from the in-
door unit to the desired location. Using 2
x 10”/12” Crescent wrenches remove the
fl are nuts from the indoor unit line stubs.
The indoor unit is fi lled with a dry gas,
check for release of this to ensure that no
leaks are present. Use a small amount of
vacuum pump oil on the male fl are threads
to ease installation.
Connect the line set to the stubs. Using
the 2 wrenches, 1 on the male and 1 on
the female tighten the fl are nuts. Run the
line set to the outdoor unit, avoid tight
bends and kinking the lines.
If line set length is in excess of that re-
quired, cut line set and re-fl are or coil ex-
cess vertically to facilitate oil return to the
compressor
Line set connections
under the GRAY
caps.
Service port Gas line service valve
Liquid line service valve
Install the line set on the
indoor unit stubs.
Indoor Unit
Outdoor
Unit
remove line
set cover
K1CA/K1HA 9,000/2,000 shown.
(K1CA/K1HA 18,000/4,000 has
an additional liquid line port.)