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MH026FNCA
Samsung MH026FNCA User Manual
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Samsung Electronics
8-7
8-3 MAIN
PCB(Outdoor Unit)
!
Power N
@
Power L
#
BLDC F
AN
$
AC F
AN
%
Communication 485
^
COND/OLP
T
emperature Sensor
&
DIS/OUT
T
emperature Sensor
*
EEV Connector
(
Comp. Connector Wire
)
Reactor Connector Wire
#
$
■
MH050FXCA2A/MH080FXCA4A
90
92
Table of Contents
Default Chapter
1
The Feature of Product
1
Table of Contents
2
1 Precautions
4
Installing the Air Conditioner
4
Power Supply and Circuit Breaker
4
During Operation
4
Disposing of the Unit
5
Others
5
2 Product Specifications
6
The Feature of Product
6
Product Specifications
11
Accessory and Option Specifications
13
Indoor Unit Accessories
13
Disassembly and Reassembly
14
3 Alignment and Adjustments
20
Error Mode and Check Method
20
Setting Option Setup Method
26
Table of the Option Code
28
Necessary Tools
30
4 Disassembly and Reassembly
30
Indoor Unit
31
Outdoor Unit
47
5 Exploded Views and Parts List
54
Indoor Unit
54
Parts List
55
Nj0261Hxca/Nj0351Hxca
62
Pssma(Slim 1 Way Cassette Panel)
64
Nj030Mhxca/Nj035Mhxca/Nj052Mhxca
66
Pmsma(Mini 4 Way Cassette Panel)
68
Outdoor Unit
70
Mh050Fxca2A
70
Mh080Fxca4A
72
6 Wiring Diagram
74
Indoor Unit
74
Outdoor Unit
78
7 Schematic Diagram
80
Indoor Unit
80
Outdoor Unit
84
8 PCB Diagram
85
MAIN PCB(Indoor Unit)
85
SUB PCB(Indoor Unit)
90
MAIN PCB(Outdoor Unit)
91
9 Troubleshooting
92
Items to be Checked First
92
Checking and Testing Operations
93
Settings of PCB Display of the Outdoor Unit
93
K4 View Mode Display Changes
93
Outdoor PCB Display
93
Pipe Checking Operation (Auto Addressing Mode)
94
Automated Checking of Pipe Connection (Auto Addressing Option)
94
Apply the Power to the Outdoor Unit
94
Expected Time of 4 Indoor Units Installation
95
In Case of MANUAL ADDRESSING Mode
96
Switch Setting and Testing Operation
96
Manaul Address Setting
99
Auto Address Setting
100
Address Setting Another Case
100
Operation Error
101
Try-Run Check Error
102
Fault Diagnosis by Symptom
103
Basic Check Flow
103
Checking Outdoor Controller
105
Checking AC Line
105
Checking ON/OFF Pattern of LED1
105
Checking DC Voltage on each Point
106
Checking PFC
106
Checking Indoor Controller
107
Checking Temperature Sensor
107
Checking EEV
108
Pipe Matching
108
PCB Inspection
109
Cautions for Part Replacement
109
10 Reference for Installation
110
Selecting Area for Installation
110
Remote Control Unit
111
Connecting up and Purging the Circuit
112
Refrigerant Refill
114
Refrigerant Adjustment
116
Flare Nut Fixing Torque
117
Pump Down" Procedure
118
Index for Model Name
120
11 Reference Information
120
Free Joint Multi for Europe
121
Refrigerating Cycle Diagram
123
Pressure & Capacity Mark
125
The Abbreviated Technology Words & the Definition of Technology Terms
125
Q & a for Non-Trouble
126
Air Supplier
129
Common Sense of Refrigeration
129
Effectiveness of Air Supplier
129
Four Factors of Air Suppliers
129
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Installation Manual
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Samsung MH026FNCA Specifications
General
Brand
Samsung
Model
MH026FNCA
Category
Air Conditioner
Language
English
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