Hisense AUD-18HX4SUNL1 Operating manual

TECHNICAL&SERVICE MANUAL V5.0
—ON/OFF UNITARY AIR CONDITIONERS
MODEL:
AUD-18HX4SUNL1
AUD-24HX4SZLH1
AUD-36HX6SAHH1
AUD-48HX6SEHH1
AUD-60HX6SPHH1
AUD-18HX4SUNL
AUD-24HX4SZLH
AUD-36HX6SAHH
AUD-48HX6SPHH
AUD-60HX6SPHH
AUV-18HR4SUA1
AUV-24HR4SZA1
AUV-36HR6SAB1
AUV-48HR6SEC1
AUV-60HR6SPC1
AUV-18HR4SUA
AUV-24HR4SZA
AUV-36HR6SAB
AUV-48HR6SPC
AUV-60HR6SPC
AUC-18HR4SUAA1
AUC-24HR4SZGA1
AUC-36HR6SAGA1
AUC-48HR6SEHA1
AUC-60HR6SPHA1
AUC-18HR4SUAA
AUC-24HR4SZGA
AUC-36HR6SAGA
AUC-48HR6SPHA
AUC-60HR6SPHA
(Low-Ambient Temperature Series)

Table of Contents
Page
Page
1.General 1
1-1Features 1
1-2 Product Lineup 6
1-3 Model Identification 7
1-4ProductPicture 8
2．SPECIFICATION 13
3．OUTLINESAND DIMENSIONS 25
3-1 INDOOR 25
3-2 OUTDOOR 32
4．DIAGRAM&DATA 37
4-1 Refrigerant Flow Diagram 37
4-2MAX. Refrigerant Pipe Length and Height Difference 40
4-3 Electric Diagrams 41
4-4Air flow and ESP Chart Diagrams(for duct type) 44
5．ELECTRICAL DATA 49
5-1 Electric Wiring Diagrams 49
5-2. Electric Control 65
5-3. DIP Switch Setting 68
5-4. Static Pressure Setting(only for duct type) 69
5-5Ambient Temperature Revise(INDOOR) 70
5-6 Sensor Parameter 72
6．CONTROL MODE 80
6-1 Indoor Control Mode 80
6-2 Outdoor Control Mode 83
7．TROUBLE SHOOTING 85
7-1 Error Codes 85
ON/OFF UnitaryAir Conditioner Technical & Service Manual
Table of Contents

8．CHECKING COMPONENTS 114
8-1 Check Refrigerant System 114
8-2 Check Parts Unit 116

1
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1
1. . G GE EN NE ER RA AL L
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ON/OFF UNITARYAIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0 2
¾Self Recovery of Power Break
When the power supply is recovered after break, all preset are still effective and the
air-conditioner can run according to the original setting.
¾Fault Self-diagnose Function
When there is something wrong with the air-conditioner，the micro computer could
diagnose the faults, which can be read from the display and is convenient for
maintenance.

1
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1
1. . G GE EN NE ER RA AL L

ON/OFF UNITARYAIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0 4
Ceiling &Floor Air Conditioner
Features
¾Save Installation Space
The indoor unit’s thickness is only 230mm,can be installed inside the ceiling conveniently.
¾Flexible Installation Options
According to the actual installation space,The indoor unit can be installed in the ceiling
or on the floor. One unit, Two installation method.
¾High Efficiency and Environment Friendly
New Refrigerant-R410A
R410A can protect the environment and do not harm to the ozone layer.
¾24-hour Timer ON and OFF
This Timer can be set to automatically turn the unit on or off within a 24-hour period.
¾Mute Operation
The excellent fan design enable the airflow to be quiet and smooth with minimum noise.
¾Various Refrigerant Pipe Connect Methods
The refrigerant pipe can be connect from 3 different directions(rear,right or top) .More methods,
more conveniently.
¾Self Recovery of Power Break
When the power supply is recovered after break, all preset are still effective and the
air-conditioner can run according to the original setting.

1
1. . G GE EN NE ER RA AL L

ON/OFF UNITARYAIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0 5
¾Fault Self-diagnose Function
When there is something wrong with the air-conditioner, the micro computer could diagnose the
faults, which can be read from the display and is convenient for maintenance.

1
1. . G GE EN NE ER RA AL L

ON/OFF UNITARYAIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0 6
1-2 Product Lineup
Type Model 18 24 36 48 60
Duct Type AUD- ● ● ● ● ●
Cassette Type AUC- ● ● ● ● ●
Ceiling&Floor
type AUV- ● ● ● ● ●

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1. . G GE EN NE ER RA AL L

ON/OFF UNITARYAIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0 7
1-3 MODEL IDENTIFICATION
A U C -18 U R 4 S Z A A 1
G:Indoor Unit Indetification
S:Refrigement R410A F:Refrigement R22
4:220V-240V/50HZ/1P 6:380V-415V/50HZ/3P
X: Wire Romote Controller R:Wireless Romote Controller
Cool Capacity:18x10 Btu/h
Air Conditioner
Unit
K:Outdoor Unit Indetification
serial number
U:DC-Invert Heat Pump Type H:Heat Pump Type C:Cooling Only
Type:D-Duct Type,C-Cassette Type,V-Ceiling&Floor Type,W-Outdoor Unit
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