International comfort products DLCBHR User manual

DLCBHR / DLFAHH / DLFBHB / DLFBHC / DLFBHD / DLFBHF
Multi- Zone Ductless Split System
Size 18K, 24K, 30K, 36K, 42K, 48K and 56K
Installation Instructions
NOTE: Read the entire instruction manual before starting the installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 2.........................
GENERAL 2.........................................
SYSTEM REQUIREMENTS 3- 4.........................
ELECTRICAL DATA 4................................
PARTS LIST 6........................................
DIMENSIONS 7- 14...................................
CLEARANCES 15- 17.................................
DIMENSIONS - BRANCH BOXES 18- 19.................
INSTALLATION GUIDE 20.............................
HIGH- WALL INDOOR UNIT INSTALLATION 20..........
DUCTED INDOOR UNITS INSTALLATION 21............
FLOOR CONSOLE INDOOR UNITS INSTALLATION 24....
INSTALLING THE INDOOR UNIT 26....................
CASSETTE TYPE INDOOR UNIT INSTALLATION 28......
OUTDOOR UNIT INSTALLATION 31....................
SYSTEM VACUUM AND CHARGE 35...................
START- UP 37........................................
TROUBLESHOOTING 38- 41...........................

2
SAFETY CONSIDERATIONS
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 the
multi- zone outdoor unit connected to up to nine indoor fan coil units.
For approved combinations, please refer to the Product Data.

3
SYSTEM REQUIREMENTS
Allow sufficient space for airflow and servicing unit. See Fig. 14 through 19 for minimum required clearances.
Piping
IMPORTANT:Both refrigerant lines must be insulated separately.
Minimum refrigerant line length between the indoor and outdoor units is 10 ft. (3 m). The following maximum lengths are allowed:
Table 1—Maximum Piping Lengths
Outdoor Unit
System Size 18 24 30 36 42 48 56
Piping
Min. Piping Length ft 10 10 10 10 10 10 10
Standard Piping Length ft 32 98 131.2 131.2 131.2 98.42 98.42
Max. outdoor-indoor height difference ft 33 33 49.2 49.2 49.2 98.42 98.42
Max. height distance between indoor and indoor ft 33 33 24.6 24.6 24.6 49.21 49.21
Max. height distance between indoor and outdoor and indoor ft 32 32 49.2 49.2 49.2 98.42 98.42
Max. height distance between indoor and outdoor and outdoor up ft 33 33 49.2 49.2 49.2 98.42 98.42
Max. equivalent piping outdoor to last indoor ft 33 65 82 82 82 229 229
Max. Piping Length with no additional refrigerant charge ft 32 98 131.2 131.2 131.2 98.42 98.42
Max. Piping Length ft 65 196 229.7 246 246 442.9 475.7
Gas Pipe (size - connection type) in 3/8 3/8 3/8 3/8 3/8 5/8 5/8
Liquid Pipe (size - connection type) in 1/4 1/4 1/4 1/4 1/4 3/8 3/8
Refrigerant Refrigerant Type R-410A R-410A R-410A R-410A R-410A R-410A R-410A
Heat Pump Models Charge Amount Lbs 3.53 4.85 6.17 8.05 8.05 10.91 10.91
NOTE: Tables 2 through 6 show the piping size specifications.
Table 2—Indoor High Wall
Indoor Unit Piping Connection Sizes
Indoor High Wall
(DLFAHH)
Size 912 18
Pipe Connection Size - Liquid In. 1/4" 1/4" 1/4"
Pipe Connection Size - Suction In. 1/2" 1/2" 5/8"
Table 3—Indoor High Wall
Indoor High Wall
(DLFBHB)
Size 912 18 24
Pipe Connection Size - Liquid In. 1/4" 1/4" 1/4" 1/4"
Pipe Connection Size - Suction In. 1/2" 1/2" 5/8" 5/8"
Table 4—Indoor Cassette
Indoor Cassette Size 12 18 24 Pipe Connection Size - Liquid In. 1/4" 1/4" 3/8"
Pipe Connection Size - Suction In. 3/8" 1/2" 5/8"
Table 5—Indoor Ducted
Indoor Ducted Size 912 18 21 24 Pipe Connection Size - Liquid In. 1/4" 1/4" 1/4" 3/8" 3/8"
Pipe Connection Size - Suction In. 3/8" 3/8" 1/2" 5/8" 5/8"
Table 6—Indoor Floor Console
Indoor Floor Console Size 912 18
Pipe Connection Size - Liquid In. 1/4" 1/4" 1/4"
Pipe Connection Size - Suction In. 3/8" 3/8" 1/2"
Refrigerant Piping:
Line sets to be sized based on the connection size of the indoor unit. Each pipe to be insulated individually.
Conversion Joints:
The outdoor unit may include a package of conversion joints to facilitate installation of various sizes of fan coils. These joints are to be
connected to the outdoor unit as needed to match the line set size.
Table 7—Additional Refrigerant Charge
Total Line
Length ft Additional Charge, 1/4” Liquid Line / 3/8” Liquid Line, oz/ft. ft (m)
Unit
Size Min Max 10 - 32 (3 - 10)
>32 - 66
(10 - 20)
>66 - 98
(20 - 30)
>98 - 131.2
(30 - 40)
>131.2 - 196
(40 - 60)
>196 - 230
(60 - 70)
>230 - 246
(70 - 75)
>246 - 443
(75 - 135)
>443 - 476
(135 - 145)
18 10 66
None
0.20 / 0.20
24 10 196 None None 0.20 / 0.20 0.20 / 0.20
30 10 230 None None None 0.24 / 0.58 0.24 / 0.58
36 10 246 None None None 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58
42 10 246 None None None 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58
48 10 443 None None 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58
56 10 476 None None 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58 0.24 / 0.58
Additional Refrigerant Calculation Sizes 30K, 36K and 42K:
Sum Total Liquid Pipe 1/4” (ft) x 0.24 + Sum Total Pipe 3/8” (ft) x 0.58 – 31 oz
Additional Refrigerant Calculation Sizes 48K and 56K:
Sum Total Liquid Pipe 1/4” (ft) x 0.24 + Sum Total Pipe 3/8” (ft) x 0.58 – 51.7 oz
NOTE: If the calculation results in a negative number no additional refrigerant is required.
NOTES:
EXV = Electronic Expansion Device
Electronic expansion valves in the outdoor unit are used as metering devices.

4
ELECTRICAL DATA
Table 8—High Wall DLFAHH
UNIT SIZE SYSTEM VOLTAGE OPERATING VOLTAGE INDOOR FAN
VOLT / PHASE / HZ MAX / MIN V-PH-HZ FLA HP W
9
208-230/1/60 253 / 187 208-230/1/60
0.1 0.0268 20
12 0.1 0.0268 20
18 0.1 0.0268 20
Table 9—High Wall DLFBHB
UNIT SIZE System Voltage OPERATING VOLTAGE INDOOR FAN
VOLT / PHASE / HZ MAX / MIN V-PH-HZ FLA HP W
9
208-230/1/60 253 / 187 208-230/1/60
0.17 1/72 10
12 0.17 1/72 10
18 0.3 1/29 25
24 0.38 1/10 70
Table 10—Cassette
UNIT SIZE System Voltage OPERATING VOLTAGE INDOOR FAN
VOLT / PHASE / HZ MAX / MIN V-PH-HZ FLA HP W
12
208-230/1/60 253 / 187 208-230/1/60
0.18 1/72 46
18 0.18 1/72 46
24 0.43 1/20 46
Table 11—Ducted
UNIT SIZE System Voltage OPERATING VOLTAGE INDOOR FAN
VOLT / PHASE / HZ MAX / MIN V-PH-HZ FLA HP W
9
208-230/1/60 253 / 187 208-230/1/60
0.28 1/24 80
12 0.31 1/18 80
18 0.41 1/12 100
21 0.5 1/36' 124
24 0.5 1/36' 124
Table 12—Floor Console
UNIT SIZE System Voltage OPERATING VOLTAGE INDOOR FAN
VOLT / PHASE / HZ MAX / MIN V-PH-HZ FLA HP W
9
208-230/1/60 253 / 187 208-230/1/60
0.14 1/24 30
12 0.14 1/24 30
18 0.14 1/24 30
Table 13—Multi Zone Outdoor Unit
UNIT SIZE System Voltage OPERATING VOLTAGE COMPRESSOR OUTDOOR FAN MCA MAX
FUSE/CB
AMP
VOLT / PHASE / HZ MAX / MIN RLA FLA HP W
18
208-230/1/60 253 / 187
7.2 0.62 1/12 60 15 25
24 11.5 0.59 1/8 90 21 35
30 13.9 0.68 1/6 150 19 30
36 15.6 0.82 2/9 240 21 35
42 17.8 0.82 2/9 240 24 40
48 23 11/6 150 30 50
56 23 11/6 150 30 50
*Permissible limits of the voltage range at which the unit will operate satisfactorily.
LEGEND
FLA - Full Load Amps
LRA - Locked Rotor Amps
MCA - Minimum Circuit Amps
RLA - Rated Load Amps

5
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
SWires should be sized based on NEC and local codes.
SUse 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.
SBe sure to comply with local codes while running wire from
indoor unit to outdoor unit.
SEvery 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.
SNo wire should be allowed to touch refrigerant tubing,
compressor or any moving parts.
SDisconnecting means must be provided and shall be located
within sight and readily accessible from the air conditioner.
SConnecting cable with conduit shall be routed through hole
in the conduit panel.
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.
Sizes 18- 42
Recommended Connection Method for Power and
Communication - Wiring - Power 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 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)
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.
For sizes 48- 56
Recommended Connection Method for Power and
Communication - Wiring - Power and Communication Wiring:
Power Wiring OUTDOOR UNIT& BRANCH BOXES:
Separate power supplies are required for the outdoor unit and the
Branch Boxes. The indoor units are powered from the Branch Boxes.
The field supplied 14/3 power wiring from the OUTDOOR UNIT
consists of three (3) wires. Two wires are high voltage AC power, one
is a ground wire.
The field supplied 14/3 power wiring from the BRANCH BOXES
consists of three (3) wires. Two wires are high voltage AC power, one
is a ground wire.
Up to three (3) Branch Boxes can be powered from the same 15 amp
breaker.
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 BRANCH
BOX.
Please use a separate shielded 16GA stranded control wire.
Power and Communication Wiring BRANCH BOXES to
INDOOR UNITS:
The field supplied 14/3 power/communication wiring from the
BRANCH BOX 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 “2” and the other is
a ground wire “N(1)”
See diagram below for details on wiring for sizes 48- 56.
Fig. 1 -Wiring Connection

6
PARTS LIST
Outdoor Units
Size Name Qty
18 No parts included
24 No parts included
30
Conversion Joint 3/8 to 5/8 2
Conversion Joint 3/8 to 1/2 4
Conversion Joint 1/4 to 3/8 2
Screw M4X12 1
36
Conversion Joint 3/8 to 5/8 2
Conversion Joint 3/8 to 1/2 4
Conversion Joint 1/4 to 3/8 2
Screw M4X12 1
42
Conversion Joint 3/8 to 5/8 2
Conversion Joint 3/8 to 1/2 4
Conversion Joint 1/4 to 3/8 2
Screw M4X12 1
48 bellows φ16 1
56 bellows φ16 1
Indoor High Wall DLFAHH
Size Name Qty
9,12,18
Mounting Plate 1
Remote Control 1
Remote Control Holder 1
Battery (1.5V) 2
Indoor High Wall DLFBHB
Size Name Qty
9,12,18,24
Mounting Plate 1
Remote Control 1
Remote Control Holder 1
Battery (1.5V) 2
Indoor Cassette
Size Name Qty
12,18
Remote control 1
Battery (1.5V) 2
GasketM6Xφ18X1.4 4
GasketM10Xφ30X2.5 10
Screw ST4.8X13 HC 4
Screw M6X25 4
Nut of Connector Pipe(B)
Package 1
Pipe Connection Nut ("I" shape) 1
Connection wire of wired control 1
Wired controller 1
24
bellows φ16 1
Connection wire of wired control 1
Remote control 1
Battery (1.5V) 2
Gasket location board 1
Screw ST4.8X13 HC 4
Gasket 10 10
Nut of Connector Pipe(B) 1
Wired controller 1
Indoor Ducted
Size Name Qty
9,12,18
Remote control 1
Battery (1.5V) 2
Screw M10X8 4
Screw M10 4
Gasket 10GB93 4
Pipe Connection Nut ("I" shape) 1
Nut of Connector Pipe(B)
Package 1
Wired control 1
Connection wire of wired control 1
21,24
Remote control 1
Battery (1.5V) 2
Screw M10X8 4
Screw M10 4
Gasket 10GB93 4
Nut of Connector Pipe(B) 1
Wired controller 1
Connection wire of wired control 1
bellows φ16 1
Indoor Floor Console
Size Name Qty
9,12,18
Installation Panel 1
Remote Control 1
Remote Control Holder 1
Battery (1.5V) 2

7
DIMENSIONS - INDOOR
Fig. 2 -High Wall Dimensions
Table 14—High Wall DLFAHH Dimensions
Unit Size W In. (mm) D In. (mm) H In. (mm) Q In. (mm) Operating Weight
Lbs. (kg)
9k 37.8 (960)g 8.07 (205) 12.6 (320) 2.16 (55) 33.07 (15)
12k 37.8 (960) 8.07 (205) 12.6 (320) 2.16 (55) 33.07 (15)
18k 37.8 (960) 8.07 (205) 12.6 (320) 2.75 (70) 33.07 (15)

8
DIMENSIONS - INDOOR (CONTINUED)
Fig. 3 -Wall Dimensions
Table 15—High Wall DLFBHB
Unit Size W In. (mm) D In (mm) H In. (mm) Operating Weight
9k 34.09 8.23 11.5 24.3
12k 34.09 8.23 11.5 24.3
18k 40.079 9.055 12.6 30.9
24 46.378 10.394 12.8 38.6

9
DIMENSIONS - INDOOR (CONTINUED)
Fig. 4 -Cassette Grill Dimensions
Fig. 5 -Cassette Side View Dimensions

10
DIMENSIONS - INDOOR (CONTINUED)
Fig. 6 -Cassette Connection Side View Dimensions
Fig. 7 -Cassette Top View Dimensions

11
DIMENSIONS - INDOOR (CONTINUED)
Fig. 8 -Ducted Dimensions
Table 16—Outline Dimensions
Item A B C D E F G H I J
Size
09 29 1/5 in
(742 mm)
19 1/3 in
(491 mm)
26 in
(662 mm)
24 2/5 in
(620 mm)
27 5/9 in
(700 mm)
24 1/5 in
(615 mm)
30 4/5 in
(782 mm)
6 1/7 in
(156 mm)
7 7/8 in
(200 mm)
25 in
(635 mm)
12
18 37 in
(942 mm)
19 1/3 in
(491 mm)
34 in
(862 mm)
32 2/7 in
(820 mm)
35 3/7 in
(900 mm)
24 1/5 in
(615 mm)
38 2/3 in
(982 mm)
6 1/7 in
(156 mm)
7 7/8 in
(200 mm)
25 in
(635 mm)
21 45 in
(1142 mm)
19 1/3 in
(491 mm)
41 4/5 in
(1062 mm)
40 1/6 in
(1020 mm)
43 1/3 in
(1100 mm)
24 1/5 in
(615 mm)
46 1/2 in
(1182 mm)
6 1/7 in
(156 mm)
7 7/8 in
(200 mm)
25 in
(635 mm)
24

12
DIMENSIONS - INDOOR (CONTINUED)
Fig. 9 -Floor Console Dimensions

13
DIMENSIONS - OUTDOOR
Fig. 10 -Outdoor Dimensions Size 18
Fig. 11 -Outdoor Dimensions Size 24

14
DIMENSIONS - OUTDOOR (CONTINUED)
Fig. 12 -Outdoor Dimensions Size 30- 42
Fig. 13 -Outdoor Dimensions Size 48- 56

15
CLEARANCES - INDOOR
6 " (0.15m ) min.
5
"
(0.13m)
min.
6'
5 "
(0.13m)
min.
(1.8m)
CEILING
FLOOR
Fig. 14 -High Wall Clearance
Fig. 15 -Cassette Clearance

16
CLEARANCES - INDOOR (CONTINUED)
Fig. 16 -Ducted clearance
Fig. 17 -Floor console clearance

17
CLEARANCES - OUTDOOR (CONTINUED)
A
DB
Air-outlet
Air-inlet
C
E
Fig. 18 -Clearances Outdoor 18 - 42
Table 17—Clearances Outdoor
UNIT Minimum Value
in. (mm)
A24 (609)
B24 (609)
C24 (609)
D4 (101)
E4 (101)
Fig. 19 -Clearances Outdoor 48- 56

18
DIMENSIONS - BRANCH BOXES (REQUIRED ON SIZES 48 AND 56)
OUTLINE DIMENSION AND SERVICING SPACE OF KSAUI0201AAA
17 2/7 in (439 mm)
15 in (383 mm)
14 1/5 in (361 mm)
12 1/5 in (310 mm)
10 1/3 in (263 mm)
12 1/3 in (313 mm)
2 1/3 in (60 mm)
7 1/7 in (105 mm)
3 1/3 in (85 mm)
1 3/4 in (44 mm)
5 in (128 mm) 5 in (128 mm)
5 in (128 mm) 5 1/5 in (132 mm)
1 in (26 mm)
3 4/7 in (91 mm)
3 1/7 in (80 mm)
2 2/5 in (61 mm)
3 1/2 in (88 mm)
7 1/6 in (182 mm)
3 1/3 in (85 mm)
2 1/2 in (64 mm)
Fig. 20 -Outline Dimensions
Table 18—Outline Dimensions
Sorts Indoor unit side (inch/mm) Outdoor unit side (inch/mm)
Port A Port B
Liquid Pipe   
Gas Pipe       
23 5/8 in (600 mm)
≥23 5/8 in (600 mm) ≥
≥
17 5/7 in (450 mm)
≥
17 5/7 in (450 mm)
4 in (100 mm)~4 5/7 in (120 mm)
≥
11 4/5 in (300 mm)
3/5 in (15 mm)~4/5 in (20 mm)
Fig. 21 -Installation and Service Space
Table 19—Installation and Service Space
No. 1 2 3
Name Service space Ceiling Electrical box side

19
OUTLINE DIMENSION AND SERVICING SPACE OF KSAUI0401AAA
17 2/7 in (439 mm)
15 in (383 mm)
12 1/5 in (310 mm)
14 1/5 in (361 mm)
10 1/3 in (263 mm)
12 1/3 in (313 mm)
2 1/3 in (60 mm) 7 1/7 in (105 mm)
3 1/3 in (85 mm)
1 3/4 in (44 mm)
5 in (128 mm) 5 in (128 mm)
5 in (128 mm)
5 1/5 in (132 mm)
1 in (26 mm)
7 1/6 in (182 mm)
3 1/3 in (85 mm)
2 1/2 in (64 mm)
1 3/8 in (35 mm)
2 3/4 in (70 mm)
2 3/4 in (70 mm)
1 4/5 in (35 mm)
2 3/4 in (70 mm)
2 3/4 in (70 mm)
Fig. 22 -Outline Dimensions
Table 20—Outline Dimensions
Sorts Indoor unit side (inch/mm) Outdoor unit side (inch/
mm)
Port A Port B Port C
Liquid pipe        
Gas liquid        
23 5/8 in (600 mm)
≥
4 in (100 mm)~4 5/7 in (120 mm)
≥
17 5/7 in (450 mm)
≥
11 4/5 in (300 mm)
23 5/8 in (600 mm)
≥
3/5 in (15 mm)~4/5 in (20 mm)
≥
19 2/3 in (500 mm)
Fig. 23 -Installation and Service Space
Table 21—Installation and Service Space
No. 1 2 3
Name Servicing Space Ceiling Electrical box side

20
INSTALLATION GUIDE
Up to nine fan coil units can be connected to one outdoor unit.
Refer to the Product Data for approved combinations.
Ideal installation locations include:
Each Indoor Unit
SA location where there are no obstacles near inlet and outlet area.
SA location which can bear the weight of indoor unit.
SDo not install indoor units near a direct source of heat such as
direct sunlight or a heating appliance.
SA location with the appropriate clearances (see Fig. 14).
Outdoor Unit
SA convenient location for the installation that is not exposed to
strong wind. If unit is exposed to strong winds it is recommended
that a field- fabricated wind baffle be used (see Fig. 73).
SA location which can bear the weight of outdoor unit and where
the outdoor unit can be mounted in a level position.
SA location which provides appropriate clearances (see Fig. 17
and Fig. 18).
SDo not install the indoor or outdoor units in a location with
special environmental conditions. For those applications, contact
your Sales Representative.
HIGH- WALL INDOOR UNIT
INSTALLATION
INSTALL MOUNTING PLATE
For each fan coil:
1. Carefully remove the mounting plate, which is attached to
the back of the indoor unit.
2. The mounting plate should be located horizontally and level
on the wall.
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 (see Fig. 2 and 3).
FOR EACH FAN COIL, DRILL HOLE IN WALL FOR
INTERCONNECTING PIPING, DRAIN AND WIRING
Refrigerant Line Routing
The refrigerant lines may be routed in any of the four directions
showninFig.24(a)and(b).
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.
1Right Exit
2Right Rear Exit
3Left Exit
4Left Rear Exit
( a ) ( b ) ( c )
As viewed from front
Knockout
3
Knockout 2
Knockout 1
A08281
Fig. 24 -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 (see Fig. 25).
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.
1/2 in. (13 mm)
Min.
INDOOR OUTDOOR
A07371
Fig. 25 -Drill Holes
Table 22—Hole Diameter
Unit Size Hole Diameter
in. (mm)
9k, 12k, 18k and 24k 3.75 (95)
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. 24 (c)).
2. Remove knockout 1 if you are running only the wiring.
Remove knockout 1 and 2 or knockout 1, 2 and 3 if you are
running both piping and wiring through the side of the unit.
DLFAHH Rear left condensate drain connection on
unit.
When piping out of the rear right, a field supplied joint
connection will need to be made behind the unit.
Please ensure that the connection is made properly to avoid
leaks.
CAUTION
!