Installing, starting up, and servicing air- conditioning equipment
can be hazardous due to system pressures, electrical components,
and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should
install, start- up, and service this equipment.
Untrained personnel can perform basic maintenance functions such
as cleaning coils. All other operations should be performed by
trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the
equipment.
Follow all safety codes. Wear safety glasses and work gloves. Keep
quenching cloth and fire extinguisher nearby when brazing. Use
care in handling, rigging, and setting bulky equipment.
Read these instructions thoroughly and follow all warnings or
cautions included in literature and attached to the unit. Consult
local building codes and current editions of the National Electrical
Code (NEC) NFPA 70. In Canada, refer to current editions of the
Canadian electrical code CSA 22.1.
!
Recognize safety information. This is the safety- alert symbol
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.Understand
these signal words: DANGER, WARNING, and CAUTION.
These words are used with the safety- alert symbol. DANGER
identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies hazards which could
result in personal injury or death. CAUTION is used to identify
unsafe practices which may result in minor personal injury or
product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
!
!
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF
position. There may be more than 1 disconnect switch.
Lock out and tag switch with a suitable warning label.
!
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not bury more than 36 in. (914 mm) of refrigerant pipe
in the ground. If any section of pipe is buried, there must be
a 6 in. (152 mm) vertical rise to the valve connections on
.
the outdoor units. If more than the recommended length is
buried, refrigerant may migrate to the cooler buried section
during extended periods of system shutdown. This causes
refrigerant slugging and could possibly damage the
compressor at start- up.
GENERAL
These instructions cover the installation, start- up and servicing of
outdoor and indoor units ductless systems.
SYSTEM REQUIREMENTS
Allow sufficient space for airflow and servicing unit. See Fig. 4 for
minimum required distances between unit and walls or ceilings.
Piping
IMPORTANT: Both refrigerant lines must be insulated
separately.
S Minimum refrigerant line length between the indoor and outdoor
units is 10 ft. (3 m).
S The following maximum lengths are allowed.
Table 2— Maximum Lengths
System Size
Min. Piping Lengthft (m)10 (3)10 (3)10 (3)
Standard Piping Lengthft (m)25 (7.6)25 (7.6)25 (7.6)
Max. Piping Length with no additional refrigerant chargeft (m)25 (7.6)25 (7.6)25 (7.6)
Max. Piping Lengthft (m)82 (25)82 (25)82 (25)
Piping
Refrigerant
* Charge is for piping that runs up to 25 ft. (7.6 m)
** For piping runs greater than 25 ft. (7.6 m), add specified amount of charge per foot of extra piping, up to the allowable length.
*** EXV - Electronic Expansion Device, Capillary tubes are used as metering devices
Additional refrigerant charge (between Standard – Max piping length)
Gas Pipe (size - connection type)in
Liquid Pipe (size - connection type)in
Refrigerant TypeR410AR410AR410A
Charge Amount
Oz/ft
(g/M)
Lbs
(kg)
9K
(208- 23 V)
0.2 (18.6)0.2 (18.6)0.2 (18.6)
1/4 flare
connection
1/2 flare
connection
3.1 (1.4)3.1 (1.4)3.1 (1.4)
12K
(208- 230 V)
1/4 flare
connection
1/2 flare
connection
18K
(208- 230 V)
1/4 flare
connection
5/8 flare
connection
2
All wires must be sized per NEC (National Electrical Code) or
CEC (Canadian Electrical Code) and local codes. Use Electrical
Data table MCA (minimum circuit amps) and MOCP (maximum
over current protection) to correctly size the wires and the
disconnect fuse or breakers respectively.
Per caution note, only copper conductors with a minimum 300 volt
rating and 2/64- -inch thick insulation must be used. The use of
BX cable is not recommended.
Recommended Connection Method for Power
Communication Wiring - Power and Communication W
and
iring:
The main power is supplied to the outdoor unit. The field supplied
14/3 power/communication wiring from the outdoor unit to indoor
unit consists of four (4) wires and provides the power for the
indoor unit. Two wires are high voltage AC power, one is
communication wiring and the other is a ground wire.
Recommended Connection Method for Power
Communication Wiring (To minimize communication
interfer
ence)
and
wiring
Power Wiring:
The main power is supplied to the outdoor unit. The field supplied
power wiring from the outdoor unit to indoor unit consists of three
(3) wires and provides the power for the indoor unit. Two wires are
high voltage AC power and one is a ground wire.
To minimize voltage drop, the factory recommended wire size is
14/2 stranded with a ground.
Communication Wiring:
A separate shielded copper conductor only, with a minimum 300
volt rating and 2/64- inch thick insulation, must be used as the
communication wire from the outdoor unit to the indoor unit.
Please use a separate shielded 16GA stranded control wire.
!
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S Wires should be sized based on NEC and local codes.
S Use copper conductors only with a minimum 300 volt
rating and 2/64 inch thick insulation.
!
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S Be sure to comply with local codes while running wire
from indoor unit to outdoor unit.
S Every wire must be connected firmly. Loose wiring may
cause terminal to overheat or result in unit malfunction.
A fire hazard may also exist. Therefore, be sure all
wiring is tightly connected.
S No wire should be allowed to touch refrigerant tubing,
compressor or any moving parts.
S Disconnecting means must be provided and shall be
located within sight and readily accessible from the air
conditioner.
S Connecting cable with conduit shall be routed through
S A location where there are no obstacles near inlet and outlet area.
S A location which can bear the weight of indoor unit.
S Do not install indoor units near a direct source of heat such as
direct sunlight or a heating appliance.
S A location which provides appropriate clearances as outlined in
Fig. 4. Be sure to leave enough distance to allow access for
routine maintenance. The installation site should be 72” or more
above the floor.
S Select a place away from potential electronic interference.
S Select a place where the filter can be easily removed.
Outdoor
Unit
S A location which is convenient to installation and not exposed to
strong wind.
S A location which can bear the weight of outdoor unit and where
the outdoor unit can be mounted in a level position.
S A location which provides appropriate clearances as outlined in
Fig. 4.
S Do not install the indoor or outdoor units in a location with
special environmental conditions.
S Make sure the outdoor unit is installed in accordance with the
installation instructions and is convenient for maintenance and
repair.
S See the refrigerant piping table for the maximum height
difference between indoor and outdoor units and the maximum
length of the connecting tubing.
INDOOR UNIT INSTALLATION
INSTALL MOUNTING PLATE
1. Carefully remove the mounting plate from the unit box.
2. The mounting plate should be located horizontally and level
on the wall. All minimum spacings shown in Fig. 6.
3. If the wall is block, brick, concrete or similar material, drill
.2” (5 mm) diameter holes and insert anchors for the
appropriate mounting screws.
4. Attach the mounting plate to the wall.
DRILL HOLE IN W ALL FOR INTERCONNECTING
PIPING, DRAIN AND WIRING
Refrigerant Line Routing
The refrigerant lines may be routed in any of the four directions
showninFig.8.
For maximum serviceability, it is recommended to have refrigerant
line flare connections and the drain connection on the outside of
the wall that the fan coil is mounted on.
rear left.
rear left
right
rear right
left
A12585
Fig. 8 - Refrigerant Line Routing
Fig. 9 - Refrigerant Line Routing
If piping is going through the back:
1. Determine pipe hole position using the mounting plate as a
template. Drill pipe hole diameter per chart below. The
outside pipe hole is 1/2- in. (13 mm) min. lower than inside
pipe hole, so it slants slightly downward.
If piping is going to exit from the left rear, it is
recommended to field- fabricate piping extensions to get the
flare connections to the outside of the wall.
Fig. 6 - 09 and 12K Mounting Plate Spacing
Wall
6 in.
See Hole
Size Tables
(Rear piping hole)
Mark middle
Level
(Rear piping hole)
Fig. 7 - 18K Mounting Plate Spacing
6 in.
See Hole
Size Tables
Wall
1/2 in. (13 mm)
Min.
INDOOR
OUTDOOR
A07371
Fig. 10 - Drill Holes
Table6—HoleDiameter
Model Size
9k, 12k and 18k2.2 (56)
Hole Diameter
in. (mm)
If piping is going through the right or left side:
1. Use a small saw blade to carefully remove the
corresponding plastic covering on side panel and drill the
appropriate size hole where the pipe is going through the
wall. See Fig. 16.
2. Remove knockout (see Fig. 8).
NOTE: If required, a condensate pump is available for the
application.
7
OUTDOOR UNIT INSTALLATION
1. Use a rigid base to support unit in a level position.
2. Locate outdoor unit and connect piping and wiring.
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Excessive torque can break flare nut depending on
installation conditions.
Piping Connections to Outdoor
IMPORTANT: Use refrigeration grade tubing ONL Y. No other
type of tubing may be used. Use of other types of tubing will
void manufacturer’s warranty.
Make sure there is enough piping to cover the required length
between the outdoor and indoor unit.
Only use piping suitable for high side pressure for both high
side and low side connections.
Piping Guide:
S Do not open service valves or remove protective caps from
tubing ends until all the connections are made.
S Bend tubing with bending tools to avoid kinks and flat spots.
S Keep the tubing free of dirt, sand, moisture, and other
contaminants to avoid damaging the refrigerant system.
S Avoid sags in the suction line to prevent the formation of oil
traps. Insulate each tube with minimum 3/8- in. (10 mm) wall
thermal pipe insulation. Inserting the tubing into the insulation
before making the connections saves time and improves
installation quality.
1. Remove service valve cover if provided with unit.
2. Cut tubing with tubing cutter.
3. Install correct size flare nut onto tubing and make flare
connection.
4. Apply a small amount of refrigerant oil to the flare
connection on the tubing.
5. Properly align tubing in with service valve.
6. Tighten flare nut and finish installation using two wrenches
as shown in Fig. 11.
CAUTION
Unit
A07354
Fig. 11 - Tighten Flare Nut
Outdoor Unit Wiring
1. Mount outdoor power disconnect.
2. Run power wiring from main box to disconnect per NEC
and local codes. Set outdoor unit in place.
3. Remove field wiring cover from unit by removing screws.
4. Connect conduit to the conduit panel. (See Fig. 13)
5. Properly connect both power supply and control lines to
terminal block per the connection diagram.
6. Ground unit in accordance with NEC and local electrical
codes.
7. Use lock nuts to secure conduit.
8. Reinstall field wiring cover.
lock nut
conduit
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S Be sure to comply with local codes while running wire
from indoor unit to outdoor unit.
S Every wire must be connected firmly. Loose wiring may
cause terminal to overheat or result in unit malfunction.
A fire hazard may also exist. Therefore, be sure all wiring
is tightly connected.
S No wire should be allowed to touch refrigerant tubing,
compressor or any moving parts.
S Disconnecting means must be provided and shall be
located within sight and readily accessible from the air
conditioner.
S Connecting cable with conduit shall be routed through
hole in the conduit panel.
Connections
Field Wiring Cover
Conduit Panel
Finish
Fig. 13 - Field Wiring
CAUTION
A12539
Strong
wind
Fig. 12 - High Wind Installation
A07350
8
INSTALL ALL POWER, INTERCONNECTING
WIRING, AND PIPING TO INDOOR UNIT
1. Run interconnecting piping and wiring from outdoor unit to
indoor unit.
2. Pass interconnecting cable through hole in wall (outside to
inside).
3. Lift indoor unit into position and route piping and drain
through hole in wall (inside to outside). Fit interconnecting
wiring into back side of indoor unit.
4. Hang indoor unit on upper hooks of wall mounting plate (as
shown in Fig. 14 and Fig. 17).
Fig. 14 - Hanging Indoor Unit
A08283
Fig. 16 - Remove Knockouts
Fixing hook
Mounting
plate
Fig. 17 - Hang Indoor Unit
!
CAUTION
Mounting
plate
A12408
5. Open front cover of indoor unit and remove field wiring terminal block cover (see Fig. 15).
Field Wiring
Cover
Interconnecting
Cable
A08279
Fig. 15 - Field Wiring Cover
6. Pull interconnecting wire up from back of indoor unit and
position in close to the terminal block on indoor unit.
7. Push bottom of indoor unit onto mounting plate to
complete wall mount.
8. Connect wiring from outdoor unit per connection diagram
(see Fig. 23).
NOTE:Polarity of power wires must match original
connection on outdoor unit.
9. Replace field wiring cover and close front cover of indoor
unit.
10. Connect refrigerant piping and drain line outside of indoor
unit. Refer to Fig. 11 for proper installation of flare
connections. Complete pipe insulation at flare connection
then fasten piping and wiring to the wall as required.
Completely seal the hole in the wall.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Never use the system compressor as a vacuum pump.
Refrigerant tubes and indoor coil should be evacuated using the
recommended deep vacuum method of 500 microns. The alternate
triple evacuation method may be used if the procedure outlined
below is followed. Always break a vacuum with dry nitrogen.
SYSTEM VACUUM AND CHARGE
Using Vacuum Pump
1. Completely tighten flare nuts A, B, C, D, connect manifold
gage charge hose to a charge port of the low side service
valve. (See Fig. 18.)
2. Connect charge hose to vacuum pump.
3. Fully open the low side of manifold gage. (See Fig. 19)
4. Start vacuum pump
5. Evacuate using either deep vacuum or triple evacuation
method.
6. After evacuation is complete, fully close the low side of
manifold gage and stop operation of vacuum pump.
7. The factory charge contained in the outdoor unit is good for
up to 25 ft. (8 m) of line length. For refrigerant lines longer
than 25 ft (8 m), add 0.2 oz. per foot of extra piping up to
the maximum allowable length.
8. Disconnect charge hose from charge connection of the low
side service valve.
9. Fully open service valves B and A.
10. Securely tighten caps of service valves.
9
Outdoor Unit
t
Service Valve
Refrigerant
Low Side
A
High Side
B
Indoor Uni
C
D
A07360
Fig. 18 - Service Valve
Manifold Gage
500 microns
Low side valve
Charge hose
Low side valve
High side valve
Charge hose
Vacuum pump
A07361
Fig. 19 - Manifold
Deep Vacuum
Method
The deep vacuum method requires a vacuum pump capable of
pulling a vacuum of 500 microns and a vacuum gage capable of
accurately measuring this vacuum depth. The deep vacuum method
is the most positive way of assuring a system is free of air and
liquid water. (See Fig. 20)
5000
4500
4000
3500
3000
LEAK IN
SYSTEM
2500
2000
MICRONS
1500
1000
500
VACUUM TIGHT
TOO WET
TIGHT
DRY SYSTEM
Triple Evacuation
Method
The triple evacuation method should only be used when vacuum
pump is only capable of pumping down to 28 in. of mercury
vacuum and system does not contain any liquid water.
Refer to Fig. 21 and proceed as follows:
1. Pump system down to 28 in. of mercury and allow pump to
continue operating for an additional 15 minutes.
2. Close service valves and shut off vacuum pump.
3. Connect a nitrogen cylinder and regulator to system and
open until system pressure is 2 psig.
4. Close service valve and allow system to stand for 1 hr.
During this time, dry nitrogen will be able to diffuse
throughout the system absorbing moisture.
5. Repeat this procedure as indicated in Fig. 21. The system is
then free of any contaminants and water vapor.
EVACUATE
BREAK VACUUM WITH DRY NITROGEN
WAIT
EVACUATE
BREAK VACUUM WITH DRY NITROGEN
WAIT
EVACUATE
CHECK FOR TIGHT, DRY SYSTEM
(IF IT HOLDS DEEP VACUUM)
RELEASE CHARGE INTO SYSTEM
A95425
Fig. 21 - Triple Evacuation Method
Final Tubing
Check
IMPORTANT: Check to be certain factory tubing on both indoor
and outdoor unit has not shifted during shipment. Ensure tubes are
not rubbing against each other or any sheet metal. Pay close
attention to feeder tubes, making sure wire ties on feeder tubes are
secure and tight.
01234567
MINUTES
Fig. 20 - Deep Vacuum Graph
A95424
10
START- UP
Tes t Operation
Perform test operation after completing gas leak and electrical
safety check.
1. Push the “ON/OFF” button on Remote Control to begin
testing.
NOTE: A protection feature prevents the air conditioner from
being activated for approximately 3 minutes.
2. Push MODE button, select COOLING, HEATING, FAN
mode to check if all functions work correctly.
SYSTEM CHECKS
1. Conceal the tubing where possible.
2. Make sure that the drain tube slopes downward along its entire length.
3. Ensure all tubing and connections are properly insulated.
4. Fasten tubes to the outside wall, when possible.
5. Seal the hole through which the cables and tubing pass.
INDOOR UNIT
1. Do all Remote Control buttons function properly?
2. Do the display panel lights work properly?
3. Does the air deflection louver function properly?
4. Does the drain work?
OUTDOOR UNIT
1. Are there unusual noises or vibrations during operation?
Explain Following Items To Customer With The Aid Of The
Owner’s Manual:
1. How to turn air conditioner on and off; selecting
COOLING, HEATING and other operating modes; setting
a desired temperature; setting the timer to automatically start
and stop air conditioner operation; and all other features of
the Remote Control and display panel.
2. How to remove and clean the air filter.
3. How to set air deflection louver.
4. Explain care and maintenance.
5. Present the Owner’s Manual and installation instructions to
customer.
INSTALLATION AND MAINTENANCE OF FILTER
1. Grasp the front panel by its two ends and lift the panel and
then remove the air filter.
2. Install a clean air filter along the arrow direction and close
the panel.
Air filter
Auxiliary filter
A12541
Fig. 22 - Install Air Filter
11
Outdoor
Unit
Terminal
Block
Power to
Indoor Uni t
Power to
Indoor Unit
Main Pow er
Supply
208/230-1-60208/230-1-60
Control to
Indoor Uni t
Control to
Indoor Unit
Power to
Indoor Uni t
Power to Indoor
Unit
Main Pow er Supply
Main Power Supply
WIRING DIAGRAMS
09 &12 208/230-1-60 Connection Diagram
CONNECTING CABLE
OUTDOOR TO INDOOR
CAUTION
Attention
Use Copper Conductors Only
WithMinimum 300 Volt,2/64"
Thick Insulation.
Utilisezseulementdes
conducteur s e n cuivre d'un
minimum de 300 volt d'une
isola tion d' è paiss eur de 2/64 ".
DNG1L2L
Ground
Fig. 23 - 09K & 12K Unit Wiring Diagrams
208/230-1-60 Connection Diagram
CONNECTING
CABLE OUTDOOR
TO INDOOR
CAUTION
CAUTION
Attention
Atte nti on
UseCopperConductorsOnly
Use Copper Conductors Only
WithMinimum300Volt,2/64"
WithMinimum 300 Volt,2/64"
ThickInsulation.
Main Power
Supply
Thick Ins ulation.
Utilisezseulementdes
Utilisez s euleme nt des
conducteursencuivred'un
conducteurs en cuivre d'un
minimumde300voltd'une
minimum de 300 voltd'une
isolationd'èpaisseurde2/64".
This unit has on- board diagnostics. Error codes appear on the LED display on the front panel of the indoor unit in place of the temperature
display. Error codes are also displayed on the outdoor unit microprocessor board with colored LED lights. The table below explains the error
codes for both units.
Table 7—Diagnostic Codes
Display table for error status
Error nameError definitionError code display
Freon recovery modeOperation status is displayed immediatelyFo
Malfunction of indoor fanMalfunction of hardwareH6
Malfunction of middle temperature sensor of indoor evaporatorMalfunction of hardwareF2
Malfunction of indoor ambient temperature sensorMalfunction of hardwareF1
Communication malfunction between indoor unit and outdoor unitMalfunction of hardwareE6
Malfunction of jumper capMalfunction of hardwareC5
Limit/decrease frequency due to module current protectionDisplay through adjustment with remote controllerEn
Limit/decrease frequency due to module temperature protectionDisplay through adjustment with remote controllerEU
Limit/decrease frequency due to overload protectionDisplay through adjustment with remote controllerF6
Limit/decrease frequency due to freeze prevention protectionDisplay through adjustment with remote controllerFH
Limit/decrease frequency due to discharge protectionDisplay through adjustment with remote controllerF9
Limit/decrease frequency due to AC current protection of outdoor unitDisplay through adjustment with remote controllerF8
Malfunction overload temperature sensorMalfunction of hardwareFE
Malfunction of outdoor discharge temperatureMalfunction of hardwareF5
Malfunction of outdoor ambient temperature sensorMalfunction of hardwareF3
Malfunction of outdoor condenser temperature sensorMalfunction of hardwareF4
Circuit malfunction of module temperature sensorMalfunction of hardwareP7
Overload protection of compressorOther malfunctionH3
Discharge protectionOther malfunctionE4
Overload protectionOther malfunctionE8
AC current protection of outdoor unitOther malfunctionE5
Module current protectionOther malfunctionH5
Module temperature protectionOther malfunctionP8
Freeze prevention protectionOther malfunctionE2
High power protectionOther malfunctionL9
Lacking/inverse phase protection of compressorOther malfunctionU2
PFC current malfunctionOther malfunctionHC
High DC bus bar voltage protectionOther malfunctionPH
Low DC bus bar voltage protectionOther malfunctionPL
Freon-lacking protectionOther malfunctionFO
Mode shockMalfunction of hardwareE7
Non-matching between indoor unit and outdoor unitMalfunctionof hardwareLP
Read-write malfunction of memory chipMalfunction of hardwareEE
Abnormal changeover for 4-way valveMalfunction of hardwareU7
Malfunction of outdoor fan 2Malfunction of hardwareLA
Malfunction of outdoor fan 1Malfunction of hardwareL3
Low pressure protectionOther malfunctionE3
High pressure protectionOther malfunctionE1
Drop malfunction of DC bus bar voltageOther malfunctionU3
Current detection malfunction for the complete unitMalfunction of hardwareU5
Charing malfunction for capacityMalfunction of hardwarePU
Phase current detection malfunction of compressorMalfunction of hardwareU1
De synchronizingof compressorOther malfunctionH7
Demagnetizing protection of compressorOther malfunctionHE
Failure start up of compressorOther malfunctionLc
High peak current of compressorOther malfunctionP5
Conglutination malfunction of relay of refrigerant electric heater of OUMalfunction of hardwareA2
Refrigerator heater of outdoor unit is invalidDisplay through adjustment with remote controllerA3
Malfunction of temperature sensor of refrigerant heaterMalfunction of hardwareA4
Malfunction exit tube temperature sensor for condenserMalfunction of hardwareA5
Oil returnDisplay through adjustment with remote controllerF7
Nominal cooling and heating (capacity test code)Operation status is displayed immediatelyP1
Maximum cooling and heating (capacity test code)Operation status is displayed immediatelyP2
Medium cooling and heating (capacity test code)Operation status is displayed immediatelyP3
Minimum cooling and heating (capacity test code)Operation status is displayed immediatelyPO
13
Copyright 2015 CAC/BDP. S 7310 W. Morris St. S Indianapolis, IN 46231
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Edition Date: 06/15
Catalog No: 38GR- 40GR - 1SI
Replaces: NEW
14
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