Seabreeze SHE9H4ZIGX User manual

953-0118 03/09/2017
MULTI-ZONE MINI-SPLIT
(DUAL, TRIPLE, QUAD, & FIVE PORT)
SERVICE MANUAL
For the following models:
Indoor Unit
Outdoor Unit
Wall Mounted
Console
SHE9H4ZIGX
SMZC9H4ZIGX
Dual
SHE12HZIGX
SMZC12H4ZIGX
SMZ18H46ZOGX
SHE18HZIGX
SMZC18H4ZIGX
Triple
SHE9H4ZIGB
Cassette
SMZ24H46ZOGX
SHE12HZIGB
SMZCA12H4ZIGX
SHE18HZIGB
SMZCA18H4ZIGX
Quad
SHE24HZIGB
SMZCA24H4ZIGX
SMZ30H46ZOGX
Floor/Ceiling
Ducted
Five Port
SMZFC9H4ZIGX
SMZD9H4ZIGX
SMZ42H46ZOGX
SMZFC12H4ZIGX
SMZD12H4ZIGX
SMZFC18H4ZIGX
SMZD18H4ZIGX
SMZFC24H4ZIGX
SMZD21H4ZIGX
SMZD24H4ZIGX

1
Table of Contents
1. Precaution ......................................................................................................................................................................... 5
1.1 Safety Precaution ........................................................................................................................................................ 5
1.2 Warning....................................................................................................................................................................... 5
1.3 Caution ........................................................................................................................................................................6
1.4 Operational .................................................................................................................................................................6
2. Model Names and Definitions........................................................................................................................................... 7
2.1 Model Names and Definition ...................................................................................................................................... 7
2.2 Types of Indoor Units .................................................................................................................................................. 1
3. Dimensions........................................................................................................................................................................ 2
3.1 Indoor Unit .................................................................................................................................................................. 2
3.1.1 Wall Mounted ...................................................................................................................................................... 2
3.1.2 Console................................................................................................................................................................. 2
3.1.3 Cassette................................................................................................................................................................ 3
3.1.4 Floor/Ceiling......................................................................................................................................................... 4
3.1.4 Ducted .................................................................................................................................................................. 4
3.2 Outdoor Unit ............................................................................................................................................................... 5
3.2.1 Dual Port............................................................................................................................................................... 5
3.2.2 Triple / Quad Port................................................................................................................................................. 6
3.2.3 Five Port ...............................................................................................................................................................7
4. Refrigeration System Diagram ..........................................................................................................................................8
5. Key Components ............................................................................................................................................................. 10
5.1 Compressor ...............................................................................................................................................................10
5.2 Electronic Expansion Valve........................................................................................................................................10
5.3 Pressure Switch ......................................................................................................................................................... 10
6. Wiring Diagram ...............................................................................................................................................................11
6.1 Indoor Units...............................................................................................................................................................11
6.1.1 Wall Mounted ....................................................................................................................................................11
6.1.2 Console...............................................................................................................................................................13
6.1.3 Cassette..............................................................................................................................................................13
6.1.4 Floor/Ceiling.......................................................................................................................................................14
6.1.5 Ducted ................................................................................................................................................................15
6.2 Outdoor Units............................................................................................................................................................ 16
6.2.1 Dual Port............................................................................................................................................................. 16
6.2.2 Triple / Quad Port...............................................................................................................................................17
6.2.3 Five Port .............................................................................................................................................................18

2
7. System Configuration...................................................................................................................................................... 20
7.1 System Structure.......................................................................................................................................................20
7.2 Configuration Options............................................................................................................................................... 20
7.2.1 Dual Port Options...............................................................................................................................................20
7.2.2 Quad Port Options.............................................................................................................................................. 21
7.2.3 Quad Port Options.............................................................................................................................................. 21
7.2.4 Five Port Options................................................................................................................................................22
8. Installation....................................................................................................................................................................... 23
8.1 Placing the Indoor Unit ............................................................................................................................................. 23
8.1.1 Wall Mounted ....................................................................................................................................................23
8.1.2 Console...............................................................................................................................................................24
8.1.3 Cassette..............................................................................................................................................................24
8.1.4 Floor/Ceiling.......................................................................................................................................................25
8.1.5 Ducted ................................................................................................................................................................25
8.2 Placing the Outdoor Unit .......................................................................................................................................... 26
8.2.1 Dual/Triple/Quad Port ....................................................................................................................................... 26
8.2.2 Five Port .............................................................................................................................................................26
8.3 Maximum Line Length and Height ............................................................................................................................27
8.4 Tubing Connection Size ............................................................................................................................................. 28
8.4.1 Indoor Unit ......................................................................................................................................................... 28
8.4.2 Outdoor Unit ...................................................................................................................................................... 28
8.5 Refrigerant Tubing.....................................................................................................................................................29
8.5.1 Torque Table for Flare Nuts ...............................................................................................................................29
8.5.2 Bundling the Lines.............................................................................................................................................. 29
8.6 Electrical Connection.................................................................................................................................................30
8.6.1 Dual/Triple/Quad Port ....................................................................................................................................... 30
8.6.2 Five Port .............................................................................................................................................................31
8.7 Evacuating the System ..............................................................................................................................................32
8.8 Start-Up Testing ........................................................................................................................................................ 33
8.8.1 Preparation.........................................................................................................................................................33
8.8.2 Operational Test.................................................................................................................................................33
8.8.3 Other Operations ...............................................................................................................................................33
9. Functions and Protection Features .................................................................................................................................34
9.1 Functions................................................................................................................................................................... 34
9.1.1 “COOL” Mode.....................................................................................................................................................34
9.1.2 “DRY” Mode .......................................................................................................................................................34

3
9.1.3 “FAN” Mode ....................................................................................................................................................... 34
9.1.4 “HEAT” Mode .....................................................................................................................................................35
9.2 Protection Features...................................................................................................................................................36
9.2.1 Mode Conflict (“E7”)................................................................................................................................... 36
9.2.2 Overload Protection (“E8”) ................................................................................................................................36
9.2.3 Compressor Overload Protection (“H3”) ...........................................................................................................36
9.2.4 Communication Malfunction (“E6”)................................................................................................................... 36
9.2.5 Intelligent Power Module (IPM) Protection (“H5”)............................................................................................36
9.2.6 Compressor Overpressure (“E1”)....................................................................................................................... 36
9.2.7 Compressor Phase Protection (“Ld”) .................................................................................................................36
10. Error codes .................................................................................................................................................................... 38
10.1 Error Codes on Indoor unit panel............................................................................................................................38
10.2 Flash codes on the PC board of outdoor unit ......................................................................................................... 40
10.2.1 Dual/Triple/Quad Ports....................................................................................................................................40
10.2.2 Five Ports.......................................................................................................................................................... 44
11. Troubleshooting ............................................................................................................................................................46
11.1 C5: Jumper Failure...................................................................................................................................................48
11.2 E1: High Pressure Protection...................................................................................................................................49
11.3 E2: Anti-Freezing Protection ...................................................................................................................................50
11.4 E3: Low Pressure Protection ...................................................................................................................................51
11.5 E4: Exhaust Protection ............................................................................................................................................ 52
11.6 E5: Over-Current Protection ...................................................................................................................................52
11.7 E6: Communication Malfunction ............................................................................................................................53
11.8 E8: Overload Protection.......................................................................................................................................... 55
11.9 E9: Condensate Water Full in Indoor Unit ..............................................................................................................55
11.10 F1/F2/F3/F4/F5: Temperature Sensor Failure ......................................................................................................56
11.10.1 F1/F3: Ambient Sensor for Indoor and Outdoor............................................................................................ 56
11.10.2 F2/F4: Tube Sensor for Indoor and Outdoor.................................................................................................. 57
11.10.3 F5: Exhaust Sensor Failure .............................................................................................................................57
11.11 H3: Compressor Overload Protection ...................................................................................................................58
11.12 H5: IPM Protection................................................................................................................................................ 59
11.13 H6: Indoor Fan Motor Failure................................................................................................................................60
11.14 H7: Compressor Desynchronizing .........................................................................................................................61
11.15 HC: PFC Protection ................................................................................................................................................62
11.16 Lc: Startup Failure .................................................................................................................................................63
11.17 PU: Capacitor Charging Circuit Error.....................................................................................................................64

4
11.18 U8: Indoor Fan Motor Zero-Cross Detecting Error................................................................................................65
11.19 Error Code label on the outdoor units .................................................................................................................. 66
12. Disassembly Procedure .................................................................................................................................................68
12.1 Outdoor Units..........................................................................................................................................................68
12.1.1 Dual Port (SMZ18H46ZOGX) ............................................................................................................................68
12.1.2 Triple/Quad Port (SMZ24H46ZOGX/SMZ30H46ZOGX)....................................................................................76
12.1.3 Five Port (SMZ42H46ZOGX) .............................................................................................................................86
12.2 Indoor Units.............................................................................................................................................................98
12.2.1 Wall Mounted ..................................................................................................................................................98
12.2.2 Console...........................................................................................................................................................102
12.2.3 Cassette.......................................................................................................................................................... 106
12.2.4 Floor/Ceiling...................................................................................................................................................112
12.2.5 Ducted ............................................................................................................................................................116
13. Specifications ..............................................................................................................................................................118
13.1 Indoor Units...........................................................................................................................................................118
13.1.1 Wall Mounted A ............................................................................................................................................. 118
13.1.2 Wall Mounted B .............................................................................................................................................119
13.1.3 Console...........................................................................................................................................................120
13.1.4 Cassette.......................................................................................................................................................... 121
13.1.5 Floor/Ceiling...................................................................................................................................................122
13.1.6 Ducted ............................................................................................................................................................123
13.2 Outdoor Units ......................................................................................................................................................... 124
13.2.1 Dual Port.........................................................................................................................................................124
13.2.2 Triple Port.......................................................................................................................................................125
13.2.3 Quad Port .......................................................................................................................................................126
13.2.4 Five Port .........................................................................................................................................................127
14. Appendix .....................................................................................................................................................................128
14.1 Appendix I: Resistance of Ambient Temperature Sensor (15K) for Indoor/Outdoor Units (F1,F3)...................... 128
14.2 Appendix II: Resistance of Tube Temperature Sensor (20K) for Indoor/Outdoor Units (F2,F4)...........................129
14.3 Appendix III: Resistance of Exhaust Temperature Sensor (50K) for Outdoor Units (F5) ......................................130
14.4 Appendix IV: Pressure on Service Port.................................................................................................................. 131

5
1. Precaution
Installation MUST conform with local building codes or, in the absence of local codes, with the National Electrical
Code NFPA70/ANSI C1-1993 or current edition and Canadian Electrical Code Part1 CSA C.22.1.
The information contained in the manual is intended for use by a qualified service technician familiar with safety
procedures and equipped with the proper tools and test instruments.
Installation or repairs made by unqualified persons can result in hazards to you and others.
Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property
damage, personal injury, and/or death.
This service manual is only intended for the service engineer to use.
1.1 Safety Precaution
To prevent injury or damage to the user, other people, or property, the following instructions
must be followed.
Incorrect operation due to ignoring instructions may cause harm or damage.
Before servicing the unit, be sure to read this service manual first.
1.2 Warning
Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.
For electrical work, contact the dealer, seller, a qualified electrician, or an authorized service
center.
Always ground the product.
Install the panel and the cover of the control box securely.
Always install a dedicated circuit and breaker.
Use a properly rated breaker and fuse.
Do not modify or extend the power cable.
Do no install, remove, or reinstall the unit by yourself (customer).
Be cautious when unpacking and installing the product.
For installation, always contact the dealer or an authorized service center.
Do not install the product on a defective installation stand.
Be sure the installation does not deteriorate with age.
Do not let the air conditioner run for a long time when the humidity in the area is high or if a
door or window is left open.
Make sure that the power cable cannot be pulled out or damaged during operation.
Do not place anything on the power cable.
Do not plug or unplug the power supply plug during operation.
Do not touch or operate the product with wet hands.
Do not place a heater or other appliance near the power cable.
Do not allow water to run into electrical parts.
Do not store or use flammable gas or combustibles near the product.
Do not use the product in a tightly closed space for a long time. (oxygen deficiency)
When flammable gas leaks, turn off the gas and open a window for ventilation before turning
the product back on.
If strange sounds or smoke comes from the product, turn the breaker off or disconnect the
power supply cable.
Stop operation and close the window during storms or hurricanes.
Do not open the inlet grill of the product during operation.
Do not touch the electrostatic filter, if equipped.

6
When the product is soaked, contact an authorized service center.
Be careful to prevent water from entering the product.
Ventilate the product from time to time when operating with a stove, etc.
Turn the main power off when cleaning or maintaining the product.
When the product is not used for a long time, disconnect the power supply plug or turn off the
breaker.
Make sure that nobody can step on or fall onto the outdoor unit.
1.3 Caution
Always check for gas (refrigerant) leakage after installation or repair of product.
Install the drain hose to ensure that water is drained away properly.
Keep level even when installing the product.
Do not install the product where the noise or hot air from the outdoor unit could cause damage
to harm to neighbors or other property.
Use two or more people to lift and transport the product.
Do not install the product where it will be exposed to sea wind (salt spray) directly.
1.4 Operational
Do not expose the skin directly to cool air for a long time. (Do not sit in the draft)
Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a
consumer air conditioner, not a precision refrigeration system.
Do not block the inlet or outlet of air flow.
Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.
Do not touch the metal parts of the product when removing the air filter. They are very sharp.
Do not step on or put anything on the product (outdoor units).
Always insert the filter securely. Clean the filter every two weeks or more often if necessary.
Do not insert hands or other objects through air inlet or outlet while the product is operating.
Do not drink the water drained from the product.
Use a firm stool or ladder when cleaning or maintaining the product.
Replace all the batteries in the remote control with new ones of the same type. Do not mix old
and new batteries or different types of batteries.
Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.
If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do
not use the remote if batteries have leaked inside.

7
2. Model Names and Definitions
2.1 Model Names and Definition
NOTE: The number of characters for each letter may be less than the example shown.
X AABBCCDEFGX X
Example: S M Z C A 1 2 H 4 Z I G X
AA –Name of system
HE: High Efficiency
MZ:Multi-Zone
BB –Type of indoor unit (if applicable)
C: Console
CA: Cassette
FC: Floor/Ceiling
D: Ducted
NOTE: The “High Efficiency” and “Outdoor unit” do not have this characteristic. “High Efficiency” units are assumed to be wall mounted units.
CC –BTU Capacity
D –Heating or Cooling
H: Heat pump
E –Type of Refrigerant
4: R410a
F –Rated Voltage
Z: 230V
G –Type of unit
I: Indoor Unit
O: Outdoor Unit
X –Internal Code
Model
Type of Unit (I/O)
Type of Unit
Capacity (BTU)
SHE9H4ZIGX / SHE9H4ZIGB
Indoor
Wall Mounted
9,000
SHE12H4ZIGX / SHE12H4ZIGB
12,000
SHE18H4ZIGX / SHE18H4ZIGB
18,000
SHE24H4ZIGB
21,400
SMZC9H4ZIGX
Console
9,000
SMZC12H4ZIGX
12,000
SMZC18H4ZIGX
18,000
SMZCA12H4ZIGX
Cassette
12,000
SMZCA18H4ZIGX
14,400
SMZCA24H4ZIGX
22,800
SMZFC9H4ZIGX
Floor/Ceiling
8,500
SMZFC12H4ZIGX
11,900
SMZFC18H4ZIGX
17,000
SMZFC24H4ZIGX
22,800
SMZD9H4ZIGX
Ducted
8,500
SMZD12H4ZIGX
11,900
SMZD18H4ZIGX
15,300
SMZD21H4ZIGX
20,400
SMZD24H4ZIGX
23,800
SMZ18H46ZOGX
Outdoor
Outdoor
18,000
SMZ24H46ZOGX
24,000
SMZ30H46ZOGX
30,000
SMZ46H46ZOGX
46,000

1
2.2 Types of Indoor Units
Indoor Unit Type
Catalog Number
Indoor Unit
Wall-mounted
SHE9H4ZIGX
SHE12H4ZIGX
SHE18H4ZIGX
SHE9H4ZIGB
SHE12H4ZIGB
SHE18H4ZIGB
SHE24H4ZIGB
Console
SMZC9H4ZIGX
SMZC12H4ZIGX
SMZC18H4ZIGX
Cassette
SMZCA12H4ZIGX
SMZCA18H4ZIGX
SMZCA24H4ZIGX
Floor / Ceiling
SMZFC9H4ZIGX
SMZFC12H4ZIGX
SMZFC18H4ZIGX
SMZFC24H4ZIGX
Ducted
SMZD9H4ZIGX
SMZD12H4ZIGX
SMZD18H4ZIGX
SMZD21H4ZIGX
SMZD24H4ZIGX

2
3. Dimensions
3.1 Indoor Unit
3.1.1 Wall Mounted
Model
Width
Height
Depth
SHE9H4ZIGX / SHE12H4ZIGX
34.3”
11”
7”
SHE18H4ZIGX
37.8”
11.8”
7.7”
SHE9H4ZIGB / SHE12H4ZIGB
33.3”
10.8”
7.1”
SHE18H4ZIGB
37”
11.7”
7.9”
SHE24H4ZIGB
39.6”
12.4”
8.6”
3.1.2 Console
Model
Width
Height
Depth
SMZC9H4ZIGX
27.6”
23.6”
8.5”
SMZC12H4ZIGX
SMZC18H4ZIGX
Air Inlet
Tubing Exit
W
D
H
27 6." 8.5"
23 6. "

3
3.1.3 Cassette
Model
Width
Height
Depth
SMZCA12H4ZIGX
1st Outline
1st Outline
1st Outline
SMZCA18H4ZIGX
SMZCA24H4ZIGX
2nd Outline
2nd Outline
2nd Outline
SMZCA12H4ZIGX & SMZCA18H4ZIGX
25.6"
22.44"
15.75"
22.44" 23.8" 25.6"
SMZCA24H4ZIGX
A
Refrigerant pipe
30.7" (Gaps between hoisting screw rods)
33.1" (Indoor unit)
35" * (Ceiling opening)
37.4" (Decorated surface boards)
Hoisting screws (4 pcs)
37.4" (Decorated surface boards)
35" * (Ceiling opening)
33.1" (Indoor unit)
26.8" (Gaps between hoisting screw rods)

4
3.1.4 Floor/Ceiling
Model
A
B
H
C
D
SMZFC9H4ZIGX
48.03”
8.86”
27.56”
45.59”
11.02”
SMZFC12H4ZIGX
SMZFC18H4ZIGX
SMZFC24H4ZIGX
A B
C
D
H
3.1.4 Ducted
Model
A
B
C
D
E
F
G
H
I
J
SMZD9H4ZIGX
29.21"
19.33”
26.06”
24.41”
27.56”
24.21”
30.79”
6.14”
7.87”
25”
SMZD12H4ZIGX
SMZD18H4ZIGX
37.09”
19.33”
33.94”
32.28
35.43”
24.21”
38.66”
6.14”
7.87”
25”
SMZD21H4ZIGX
44.96”
19.33”
41.81
40.16”
43.31”
24.21”
46.54”
6.14”
7.87”
25”
SMZD24H4ZIGX
A
B
D
E
G
I
C
J
F
H
Electric Box Liquid Pipe Gas Pipe
Drain Pipe
Downward Return Air
Backward
Return Air

5
3.2 Outdoor Unit
3.2.1 Dual Port
SMZ18H46ZOGX

6
3.2.2 Triple / Quad Port
SMZ24H46ZOGX / SMZ30H46ZOGX

7
3.2.3 Five Port
SMZ42H46ZOGX
3" 17.7"
3.9"
40"
43.4"
42.8"
7.5"24.8"
17.3" 15.8"
14.3"
4.8"

8
4. Refrigeration System Diagram
Model
Ports
Capacity (BTU)
SMZ18H46ZOGX
Dual
18,000
SMZ24H46ZOGX
Triple
24,000
SMZ30H46ZOGX
Quad
30,000
A1: Unit A electronic expansion valve
A2: Unit A gas pipe temperature sensor
A3: Unit A liquid pipe temperature sensor
B1: Unit B electronic expansion valve
B2: Unit B gas pipe temperature sensor
B3: Unit B liquid pipe temperature sensor
C1: Unit C electronic expansion valve
C2: Unit C gas pipe temperature sensor
C3: Unit C liquid pipe temperature sensor
D1: Unit D electronic expansion valve
D2: Unit D gas pipe temperature sensor
D3: Unit D liquid pipe temperature sensor
Cooling Cycle Heating Cycle

9
Model
Ports
Capacity (BTU)
SMZ42H46ZOGX
Five
42,000
M
Liquid Receiver
HeatExchanger
Four-wayValve
Capillary
Stop Valve
Compressor
Oil Separator
Gas/Liquid Separator
Heat Exchanger
Heat Exchanger
Heat ExchangerHeat Exchanger
Heat Exchanger
Heating
Cooling
Outdoor Uint
Indoor Uint
ElectronicExpansion Valve

10
5. Key Components
5.1 Compressor
Working Range: 30~100Hz (SMZ18H46ZOGX, SMZ24H46ZOGX, SMZ30H46ZOGX)
15~110Hz (SMZ42H46ZOGX)
Using the set temperature, unit capacity, indoor and outdoor temperature, the outdoor unit will
determine the required load and adjust the working frequency of the compressor.
5.2 Electronic Expansion Valve
Opening Angle: 90~480Hz
The outdoor coil is separated into 2, 3, 4, or 5 independent systems. Each system is controlled by an
electronic expansion valve. The refrigerant quantity allocation of the indoor unit is controlled by the
opening angle of the electronic expansion valve. If the difference between the inlet and outlet
temperature of the indoor unit is too high, the expansion valve will open. If the difference is too low, the
expansion valve will close.
Cooling Mode: If the cooling indoor fan is turned off, the electronic expansion valve will close and there
will be no refrigerant flowing to that unit. The opening of the expansion valve is
controlled by the difference of the inlet and outlet temperature of the indoor unit and
utilized to obtain the highest heat exchange efficiency (EER).
Heating Mode: If the heating indoor fan is turned off, the electronic expansion valve will maintain a
certain opening angle to make sure that the oil in the heat exchanger can be returned to
the compressor; there will be a small quantity of heat in the indoor unit coils.
5.3 Pressure Switch
NOTE: There is no pressure switch for model SMZ18H46ZOGX.
SMZ24H46ZOGX High pressure switch: 638 / 550 psi (opens on pressure rise)
SMZ30H46ZOGX High pressure switch: 638 / 550 psi (opens on pressure rise)
SMZ42H46ZOGX High pressure switch: 609 psi (opens on pressure rise)
Low pressure switch: 72.5 psi (opens on pressure drop)

11
6. Wiring Diagram
NOTE: The wiring diagrams shown are subject to change without notice. Please refer to the one
supplied with the unit for the most accurate information.
6.1 Indoor Units
6.1.1 Wall Mounted
Model
Capacity (BTU)
SHE9H4ZIGX
9,000
SHE12H4ZIGX
12,000
SHE18H4ZIGX
18,000
Model
Capacity (BTU)
SHE9H4ZIGB
9,000
SHE12H4ZIGB
12,000
13
INDOOR UNIT
PGF PG
AP2
RT2RT1
θθ
CON-MANUAL
WIRED
CONTROLLER
WIRED CONTROLLER
IS OPTIONAL.

12
Model
Capacity (BTU)
SHE18H4ZIGB
18,000
AP1
AP2: MAIN BOARD
RT2
RT1
TEMP.SENSOR
TEMP.SENSOR
TUBE
ROOM
OUTDOOR UNIT
INDOOR UNIT
Model
Capacity (BTU)
SHE24H4ZIGB
21,400
OUTDOOR UNIT
MOTOR
MOTOR
M
M2
ROOM
TUBE
TEMP.SENSOR
TEMP.SENSOR
AP2: MAIN BOARD
FAN
STEPPING
INDOOR UNIT