CS-F24DB4E5, CU-B24DBE5, CS-F28DB4E5, CU-B28DBE5, CS-F28DB4E5, CU-B28DBE8, CS-F34DB4E5, CU-B34DBE5, CS-F34DB4E5, CU-B34DBE8, CS-F43DB4E5, CU-B43DBE8, CS-F50DB4E5, CU-B50DBE8 - Panasonic Air Conditioner Service Manual (repair manual)

cs-f24db4e5, cu-b24dbe5, cs-f28db4e5, cu-b28dbe5, cs-f28db4e5, cu-b28dbe8, cs-f34db4e5, cu-b34dbe5, cs-f34db4e5, cu-b34dbe8, cs-f43db4e5, cu-b43dbe8, cs-f50db4e5, cu-b50dbe8 service manual
Model
CS-F24DB4E5 CU-B24DBE5 CS-F28DB4E5 CU-B28DBE5 CS-F28DB4E5 CU-B28DBE8 CS-F34DB4E5 CU-B34DBE5 CS-F34DB4E5 CU-B34DBE8 CS-F43DB4E5 CU-B43DBE8 CS-F50DB4E5 CU-B50DBE8
Pages
127
Size
9.48 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-f24db4e5-cu-b24dbe5-cs-f28db4e5-cu-b28dbe5-cs-f.pdf
Date

Read Panasonic CS-F24DB4E5 / CU-B24DBE5 / CS-F28DB4E5 / CU-B28DBE5 / CS-F28DB4E5 / CU-B28DBE8 / CS-F34DB4E5 / CU-B34DBE5 / CS-F34DB4E5 / CU-B34DBE8 / CS-F43DB4E5 / CU-B43DBE8 / CS-F50DB4E5 / CU-B50DBE8 Service Manual online

Order No. MAC0509061C2
Air Conditioner
CS-F24DB4E5 CU-B24DBE5
CS-F28DB4E5 CU-B28DBE5
CS-F28DB4E5 CU-B28DBE8
CS-F34DB4E5 CU-B34DBE5
CS-F34DB4E5 CU-B34DBE8
CS-F43DB4E5 CU-B43DBE8
CS-F50DB4E5 CU-B50DBE8
TABLE OF CONTENTS
PAGE
PAGE
1 Service Information---------------------------------------------- 3
1.1. Example of trouble at test operation ------------------ 3
1.2. Caution of test operation--------------------------------- 3
1.3. Caution during automatic address setting----------- 3
1.4. Caution during installation------------------------------- 3
1.5. Operation range -------------------------------------------- 4
2 Features-------------------------------------------------------------- 5
2.1. Cassette Type features ----------------------------------- 5
2.2. Outdoor Unit  ------------------------------------------------5
2.3. Wired Remote Control ------------------------------------ 7
2
2.4. Wireless Remote Control---------------------------------7
2.5. Group control equipment ---------------------------------8
3 Product Specification--------------------------------------------9
3.1. CS-F24DB4E5 CU-B24DBE5---------------------------9
3.2. CS-F28DB4E5 CU-B28DBE5------------------------- 10
3.3. CS-F28DB4E5 CU-B28DBE8------------------------- 11
3.4. CS-F34DB4E5 CU-B34DBE5------------------------- 12
3.5. CS-F34DB4E5 CU-B34DBE8------------------------- 13
3.6. CS-F43DB4E5 CU-B43DBE8------------------------- 14
3.7. CS-F50DB4E5 CU-B50DBE8------------------------- 15
3.8. Safety Devices -------------------------------------------- 16
4 Dimensions ------------------------------------------------------- 17
4.1. CS-F24DB4E5 CS-F28DB4E5 CS-F34DB4E5--- 17
4.2. CS-F43DB4E5 CS-F50DB4E5 ----------------------- 18
4.3. CU-B24DBE5 CU-B28DBE5 CU-B28DBE8------- 19
4.4. CU-B34DBE5 CU-B34DBE8 CU-B43DBE8
CU-B50DBE8 --------------------------------------------- 20
5 Refrigeration Cycle --------------------------------------------- 21
5.1. CS-F24DB4E5 CU-B24DBE5,CS-F28DB4E5
CU-B28DBE5/CU-B28DBE8 -------------------------- 21
5.2. CS-F34DB4E5 CU-B34DBE5/CU-
B34DBE8,CS-F43DB4E5 CU-B43DBE8,CS-
F50DB4E5 CU-B50DBE8 ------------------------------ 22
6 Block Diagram --------------------------------------------------- 23
6.1. CS-F24DB4E5 CS-F28DB4E5CS-F34DB4E5
CS-F43DB4E5 CS-F50DB4E5 ----------------------- 23
6.2. CU-B24DBE5 CU-B28DBE5  ------------------------- 23
6.3. CU-B34DBE5 --------------------------------------------- 23
6.4. CU-B28DBE8 --------------------------------------------- 24
6.5. CU-B34DBE8 CU-B43DBE8 CU-B50DBE8    ---- 24
7 Wiring Diagram -------------------------------------------------- 25
7.1. CS-F24DB4E5 CS-F28DB4E5CS-F34DB4E5
CS-F43DB4E5 CS-F50DB4E5  ---------------------- 25
7.2. CU-B24DBE5 CU-B28DBE5 -------------------------- 26
7.3. CU-B34DBE5 --------------------------------------------- 27
7.4. CU-B28DBE8 --------------------------------------------- 28
7.5. CU-B34DBE8 CU-B43DBE8 CU-B50DBE8------- 29
8 Operation Instructions ---------------------------------------- 30
8.1. Wired Remote Control (Optional part) -------------- 30
8.2. Remote Control - Display ------------------------------ 31
8.3. Remote Control - Panel -------------------------------- 32
8.4. How to set remote control day and time------------ 33
8.5. How To Select The Timer ------------------------------ 33
8.6. Daily Timer Setting--------------------------------------- 34
8.7. Weekly Timer Setting------------------------------------ 35
8.8. Wireless Remote Control (Optional part)----------- 37
9 Operation Details------------------------------------------------ 38
9.1. Cooling Operation---------------------------------------- 38
9.2. Heating Operation---------------------------------------- 39
9.3. Soft Dry Operation --------------------------------------- 39
9.4. Auto Operation-------------------------------------------- 39
9.5. Fan Operation--------------------------------------------- 39
9.6. Normal Control-------------------------------------------- 40
9.7. Operation Control ---------------------------------------- 42
9.8. Protection Control ---------------------------------------- 45
9.9. Test Run ---------------------------------------------------- 47
10 Installation Instruction ---------------------------------------- 48
10.1. Pipe length ------------------------------------------------- 48
10.2. Refrigerant additional charge ------------------------- 49
10.3. Position of the centre gravity -------------------------- 50
10.4. Indoor unit installation----------------------------------- 51
10.5. Outdoor unit installation   ------------------------------ 63
10.6. Wired remote control installation--------------------- 74
10.7. Wireless remote control installation manual ------ 81
10.8. Twin Operation ------------------------------------------- 88
11 Installation and Servicing Air Conditioner Using
R410A--------------------------------------------------------------- 89
11.1. Outline ------------------------------------------------------ 89
11.2. Tools for installing/servicing refrigerant piping --- 90
11.3. Refrigerant piping work -------------------------------- 94
11.4. Installation, transferring, servicing------------------- 96
12 Troubleshooting Guide -------------------------------------- 100
12.1. For standard installation ------------------------------ 100
12.2. During twin operation ---------------------------------- 102
12.3. During group control operation ---------------------- 103
12.4. Test operation and self-diagnosis ------------------ 104
12.5. Emergency operation ---------------------------------- 108
12.6. Self-diagnosis error code table---------------------- 110
13 Technical Data -------------------------------------------------- 112
13.1. Cooling capacity performance data ---------------- 112
13.2. Heating Capacity Performance Data -------------- 114
13.3. Capacity and power consumption ------------------ 115
13.4. Reaching distance-------------------------------------- 128
13.5. Sound data ----------------------------------------------- 130
13.6. Sound measuring point ------------------------------- 136
13.7. Fan performance---------------------------------------- 137
13.8. Discharge and suction pressure -------------------- 140
13.9. Operating characteristics ----------------------------- 141
14 Exploded View (Indoor Unit) ------------------------------- 142
14.1. CS-F24DB4E5 CS-F28DB4E5CS-F34DB4E5
CS-F43DB4E5 CS-F50DB4E5 ---------------------- 142
14.2. CS-F24DB4E5 CS-F28DB4E5CS-F34DB4E5
CS-F43DB4E5 CS-F50DB4E5 ---------------------- 143
15 Replacement Part List (Indoor Unit)--------------------- 144
15.1. CS-F24DB4E5 CS-F28DB4E5 ---------------------- 144
15.2. CS-F34DB4E5 CS-F43DB4E5 CS-F50DB4E5 - 145
16 Exploded View (Front Grille)------------------------------- 146
16.1. CS-F24DB4E5 CS-F28DB4E5CS-F34DB4E5
CS-F43DB4E5 CS-F50DB4E5 ---------------------- 146
17 Replacement Part List (Outdoor Unit) ------------------ 147
18 Exploded View (Outdoor Unit) ---------------------------- 148
18.1. CU-B24DBE5 CU-B28DBE5 CU-B28DBE8 ----- 148
18.2. CU-B24DBE5 CU-B28DBE5 CU-B28DBE8 ----- 149
19 Replacement Part List (Outdoor Unit) ------------------ 150
19.1. CU-B24DBE5 CU-B28DBE5 CU-B28DBE8 ----- 150
20 Exploded View (Outdoor Unit) ---------------------------- 151
20.1. CU-B34DBE5 CU-B34DBE8 CU-B43DBE8
CU-B50DBE8 -------------------------------------------- 151
20.2. CU-B34DBE5 CU-B34DBE8 CU-B43DBE8
CU-B50DBE8 -------------------------------------------- 152
20.3. CU-B34DBE5 CU-B34DBE8 CU-B43DBE8
CU-B50DBE8 -------------------------------------------- 153
21 Replacement Part List (Outdoor Unit) ------------------ 154
21.1. CU-B34DBE5 CU-B34DBE8 CU-B43DBE8
CU-B50DBE8 -------------------------------------------- 154
22 Print Pattern ----------------------------------------------------- 155
22.1. Indoor Unit Printed (Main) ---------------------------- 155
22.2. Indoor Unit Printed (Indicator) ----------------------- 156
22.3. Outdoor Unit (Main) ------------------------------------ 156
3
1 Service Information
The new Cassette / New Outdoor models are possible to have address setting for twin control or group control by 
automatic when main power supply is switched on.
(Manual address setting is also possible by using Dip switch on Indoor unit P.C. board.) However, this address setting is only
possible when made proper wiring connection and also Indoor unit should be original virgin unit
.
1.1.
Example of trouble at test operation
If found out as following phenomenon at test operation on site, it may have possibility of wrong address setting.
Therefore, please ensure of the address setting.
1. LCD display of wired remote control had not illuminate although the main power supply switch is ‘on’.
2. LCD display had indicated as normal illumination when power supply switch is ‘on’, however outdoor unit cannot be operated.
(But, it is necessary to take 3 to 5 minutes for outdoor unit to start from the timing of remote control ON/OFF switch is ‘on’.)
3. P.C. board had memorized wrong setting information.
a. If main power supply is switched ‘on’ with the wrong connection.
b. When changing the connection or combination of units due to re-installation etc.
• When changing the system from group control to normal one to one system.
• When making the replacement of units as master and slave etc.
1.2.
Caution of test operation
Do not touch the remote control switch and do not change any wirings for one minute when the main power supply switch is ‘on’.
(Because the unit is having automatic address setting during the first one minute.)
1.3.
Caution during automatic address setting
When main power supply switch is ‘on’, the P.C. board will automatically memorize the connecting system.
Consequently, when initial power supply is ‘on’, there will not be interchangeability of units even of the same type and same
capacity unit. Therefore unable to connect the unit to another system.
1.4.
Caution during installation
To protect the compressor, after installation of new unit/pump down, be sure to select cooling mode first, and run the unit in this
mode for 5 minutes or more.
If the cooling operation is not executed first for five minutes or more, the heating operation cannot be executed.
Notice of Address setting for NEW Cassette / NEW Outdoor Unit.
4
1.5.
Operation range
1.5.1.
Power Supply
The applicable voltage range for each unit is given in the following table. The working voltage among the three phases must be
balanced within a 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher than 85% of the
rated voltage.
1.5.2.
Indoor and Outdoor Temperature
• Model 50Hz CU-B24DBE5 CU-B28DBE5 CU-B28DBE8 CU-B34DBE5 CU-B34DBE8 CU-B43DBE8 CU-B50DBE8
* -10
°C is possible in non-residential computer rooms, etc., where the temperature is not les than 21°C and humidity is not more
than 45%.
MODEL
Unit Main Power
Applicable Voltage
CU-
Phase, Volts
Hz
Max
Min
B24DBE5
1~220
50
242
198
B28DBE5
1~230
50
253
207
B34DBE5
1~240
50
264
216
B28DBE8
3N~380
50
418
342
B34DBE8
3N~400
50
440
360
B43DBE8
3N~415
50
457
374
B50DBE8
Operating
Hz
Indoor Temp. (D.B./W.B.) (
°C)
Outdoor Temp. (D.B./W.B.) (
°C)
Max
Min
Max
Min
Cooling
50
32/23
21/15
43/-
-10/-*
Heating
50
27/-
16/-
24/18
-10/-
Page of 127
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