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 wo rkin g o n th e equ ipm ent, o bserv e precau tio ns in t he literatu re and
on tags, st ickers, and labels attached to the equipme nt.
Follow all safety codes. Wear safety glasses and work gloves. Keep a
quenching cloth and fire extinguisher nearby when brazing. Use care in
handling, rigging, and setting bulky equipment.
Read this manual thoroughly and follow all warnings or cautions included
in literature and attached to the unit. Consult local building codes and
National Electrical Code (NEC) for special requirements.
!
!
Recognize safety information. This is the safety−alert symbol
you see this symbol on the unit an d in instructions or manuals, be alert to
the potential for personal injury. Understand these signal words:
DANGER, WARNI NG, and CAUTION. These words are used with the
safety−alert symbol. DANGER identifies th e most seriou s hazards wh ich
will result in severe personal injury or death.
. When
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 resu lt in e nhanced installation , reliability,
or operation.
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing the system,
the 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.
!
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.
WARNING
!
WARNING
EXPLOSION HAZARD
Failure to follow this warning could
result in death, serious personal injury,
and/or property damage.
Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors. Pressurized
mixtures of air or gases containing
oxygen can lead to an explosion.
CAUTION
INTRODUCTION
This service manual provides the necessary information to service,
repair, and maintain the ductless family cooling only and heat pumps.
Section 2 of this manual is an appendix with data required to perform
troubleshooting. Use the Table of Contents to locate a desired topic.
Use of the AHRI Certified
TM Mark indicates a
manufacturer’s
participation in the
program For verification
of certification for individual
products, go to
www.ahridirectory.org.
NET Weight Cooling Onlylbs59.563.966.270.690.4103.6
NET Weight Heat Pumplbs62.867.365.069.595.9110.3154.4161.0
Sin11.311.311.311.314.314.315.615.6
NOTE: * Sizes 30 and 36 not available as Cooling Only.
4 328 080000 01
Specifications subject to change without notice.
CLEARANCES − INDOOR
(0.13m)
5
"
min.
CEILING
6" (0.15m) min.
(1.8m)
6'
FLOOR
Fig. 4 - Indoor Unit Clearance
5
"
(0.13m)
min.
CLEARANCES − OUTDOOR
D
UNIT
A24 (609)
B24 (609)
C24 (609)
D4 (101)
E4 (101)
A
Air-inlet
E
B
C
Air-outlet
Fig. 5 - Outdoor Unit Clearance
T able 7—Outdoor Clearances
MINIMUM VALUE
in. (mm)
328 080000 01 5
Specifications subject to change without notice.
WIRING
All wires must be sized per NEC (National Electrical Code) or CEC
(Canadian Electrical Code) and local codes. Use the 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 Stranded copper conductors with a 600 volt
rating and double insulated copper wire must be used.
NOTE: The use of BX cable is not recommended.
Recommended Connection Method for Powe r and Comm unication
Wiring − P ower and Communication Wiring:
The main power is supplied to the outdoor unit. The field supplied 14/3
power/communication wiring from the outdoor unit to the 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 and Communication
Wiring (To minimize communication wiring interference)
PowerWiring:
The main power is supplied to the outdoor unit. The field supplied
power wiring from the outdoor unit to the 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 stranded copper conductor only, with a minimum
600 volt rating and double insulated copper wire, must be used as the
communication wire from the outdoor unit to the indoor unit. Please
use a separate shielded 16GA stranded control wire.
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Wires should be sized based on NEC and local codes.
Use copper conductors only with a 600 volt rating and
double insulated copper wire.
!
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.
CAUTION
CAUTION
Cooling
Only
Heat
Pump
Cooling
Only
Heat
Pump
T able 8—DLFCAB / DLCCAR / DLFCHB / DLCCHR
SYSTEM SIZE9K12K9K12K18K24K30K36K
V-Ph-Hz115-1-60208/230-1-60
Running Current (Cool)A6.28.782.84.58.657.2111.517
Power Consumption (Cool)W70099063010001950165027004100
Minimum Circuit Ampacity (MCA)A12179916202024
Maximum Overcurrent Protection Ampacity (MOPA)A2025151525303040
Running Current (Cool)A6.28.782.84.58.658.0511.517
Running Current (Heat)A8.38.783.55.57.528.351216.5
Power Consumption (Cool)W70099063010001950176027004100
Power Consumption (Heat)W930990102011001730200028003800
Minimum Circuit Ampacity (MCA)A12179916202024
Maximum Overcurrent Protection Ampacity (MOPA)A2025151525303040
T able 9—DLFDAB / DLCDAR / DLFDHB / DLCDHR
SYSTEM SIZE9K12K9K12K18K24K30K HP36K HP
V-Ph-Hz115-1-60208/230-1-60
Running Current (Cool)A1112.445.8810.03
Power Consumption (Cool)W8231155900130018002260
Minimum Circuit Ampacity (MCA)A1720991615
Maximum Overcurrent Protection Ampacity (MOPA)A253015152525
Running Current (Cool)A1112.445.88.510.0311.517
Running Current (Heat)A1013.53.65.68.910.21216.5
Power Consumption (Cool)W895119390013001980226027004100
Power Consumption (Heat)W853125080012502000230028003800
Minimum Circuit Ampacity (MCA)A17209916162024
Maximum Overcurrent Protection Ampacity (MOPA)A2530151525253040
6 328 080000 01
Specifications subject to change without notice.
CONNECTION DIAGRAMS
Fig. 6 - Connection Diagram 9K & 12K Units 115V
Fig. 7 - Connection Diagram 9K & 12K Units 208/230V
Fig. 8 - Connection Diagram 18K − 36K Units 208/230V
328 080000 01 7
Specifications subject to change without notice.
WIRING DIAGRAMS
T able 10—WIRING DIAGRAMS
SYMBOL
WHWhiteGNGreenCAPJumper Cap
YEYellowBNBrownCOMPCompressor
RDRedBUBlueGrounding wire
YEGNYellow/GreenBKBlack//
VTVioletOGOrange//
NOTE: Jumper cap is used to determine the fan speed and the swing angle of the horizontal louver of this model.
Fig. 25 - Outdoor Unit DLCDHR Size 18−24 (208/230V)
16 328 080000 01
Specifications subject to change without notice.
WIRING DIAGRAM − OUTDOOR UNIT − DLCD (CONT)
Fig. 26 - Outdoor Unit DLCDHR Size 30 (208/230V)
328 080000 01 17
Fig. 27 - Outdoor Unit DLCDHR Size 36 (208/230V)
Specifications subject to change without notice.
PCB PRINTED DIAGRAMS
No.Description
1This terminal is not used
2Zero Line
3Indoor Fan Motor
4This jumper is not used
5Jumper
6Vertical Swing Motor
7This terminal is not used
8Horizontal swing motor
9Temperature sensor
10Wired controller
11Display Board
12This terminal is not used
13Communication wire
14Live Wire
15Fuse
16Capacitor for Indoor Fan Motor
T able 11—PCB Printed Diagrams
18 328 080000 01
Specifications subject to change without notice.
PCB PRINTED DIAGRAMS (CONT)
21
3
16
4
5
15
6
14
7
13
12
891011
Fig. 28 - Indoor Units DLFCAB / DLFCHB Sizes 9 to 24 Top View
T able 12—Indoor Units DLFCAB / DLFCHB
12345678910111213141516
Neutral
Wire
DC fan
Up & Down
Swing
Left & Right
swing
Wired
Controller
Interface
Wired
Controller
Interface
Display
interface
Jumper
interface
Relay Relay Fuse Piezoresistance
Live Wire
Interface
Health
Function
Live Wire
Health
Function
Neutral
Wire
Relay
Fig. 29 - Indoor Units DLFCAB / DLFCHB Sizes 9 to 24 Bottom View
328 080000 01 19
Specifications subject to change without notice.
PCB PRINTED DIAGRAMS (CONT)
1
17 18 19 20 21
16
2 2 2
3 3
15
4
5
14
13
12
11
6
7
8
9
10
Fig. 30 - Indoor Units DLFCAB / DLFCHB Sizes 30 and 36 Top View
T able 13—Indoor Units DLFCAB / DLFCHB
123456789101112131415161718192012
Power
supply
live wire
Fuse
Neutral
wire for
health
function
interface
Power
Supply
Neutral
wire
Communication
interface
Power
Switch
High−
frequency
transformer
Fan
motor
interface
Buzzer
Display
Interface
Display
Interface
Indoor tube
temperature
sensor
interface
Ambient
temperature
interface
Wired
Controlle r
Interface
Left &
Right
Swing
Termin al
Up &
Down
Swing
Termin al
Auto
Button
BMS
Interface
Jumper
Cap
Wired
Controlle r
Interface
Live Wire for
Health Function
Interface
Fig. 31 - Indoor Units DLFCAB / DLFCHB Sizes 30 and 36 Bottom View
20 328 080000 01
Specifications subject to change without notice.
PCB PRINTED DIAGRAMS (CONT)
8910111213
GRJW819-A3 V1.22013/06/25/12
4321
Fig. 32 - Outdoor Units DLCCAR / DLCCHR 115V sizes 9 and 12 Top View
T able 14—Outdoor Units DLCCAR / DLCCHR
NO.NAMENO.NAMENO.NAME
1Compressor output port6Power neutral wire port11AC fan motor port
2Overload port7Live wire12DC fan motor port
3Temperature sensor port8Compressor electric heating belt port13Electronic expansion valve port
4Communication wire port9Compressor electric heating belt port//
5Earthing wire port10Port of AC fan motor//
7
6
5
Fig. 33 - Outdoor Units DLCCAR / DLCCHR 115V sizes 9 and 12 Bottom View
328 080000 01 21
Specifications subject to change without notice.
PCB PRINTED DIAGRAMS (CONT)
11
10
8
6
9
7
5
4
12
13
Fig. 34 - Outdoor Units DLCCAR / DLCCHR 208/230V sizes 9 and 12 Top View
T able 15—Outdoor Units DLCCAR / DLCCHR
1Live wire input4Ground wire input7
2Neutral wire input5Electrical Heater wire8
3Communication interface64-way valve neutral wire94-way valve live wire12Electric reactor interface 215Te m p. senso r
Electric heater
compressor neutral wire
Electric heater chassis
neutral wire
10Fan in ter face13
11Electric reactor interface 114Overload input
Compressor phases
U,V,W
3
2
1
Fig. 35 - Outdoor Units DLCCAR / DLCCHR 208/230V Sizes 9 and 12 Bottom View
22 328 080000 01
Specifications subject to change without notice.
PCB PRINTED DIAGRAMS (CONT)
1234567
13
8
9
10
11
12
Fig. 36 - Outdoor Units DLCCAR / DLCCHR Size 18 Top View
Fig. 40 - Outdoor Units DLCCAR / DLCCHR Sizes 30 and 36 Top View
T able 18—Outdoor Units DLCCAR / DLCCHR
No.NAMENo.NAMENo.NAME
1High-frequency transformer T16High pressure protection terminal HPP111Terminal of neutral wire
2Overload protection terminal of compressor OVC-COMP7Terminal of 4-way valve12Protective tube FU101
3Terminal of temp sensor CN28Electric heater band of chassis HEAT2-L13Terminal of ground wire
4High pressure protection terminal HPP9Electric heater band of compressor HEAT1-L14Choke L 101 and L102
5Electronic expan sion valve terminal EV10Terminal of live wire15
Terminal of outdoor fan OFAN-DC
Fig. 41 - Outdoor Units DLCCAR / DLCCHR Sizes 30 and 36 Bottom View
328 080000 01 25
Specifications subject to change without notice.
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