Panasonic CS-E7HKEW, Service Manual, Page: 2 / 94

2
2.1. CS-E7HKEW CU-E7HKE -------------------------------5
2.2. CS-E9HKEW CU-E9HKE -------------------------------7
2.3. CS-E12HKEW CU-E12HKE ----------------------------9
2.4. CS-E15HKEW CU-E15HKE -------------------------- 11
2.5. Outdoor Unit: CU-2E15GBE--------------------------- 13
2.6. Outdoor Unit: 3E18EBE -------------------------------- 14
2.7. Outdoor Unit: CU-3E23CBPG CU-
4E27CBPG ------------------------------------------------ 15
3 Features ------------------------------------------------------------ 19
4 Location of Controls and Components ------------------ 21
4.1. Indoor Unit ------------------------------------------------- 21
4.2. Outdoor Unit ----------------------------------------------- 21
4.3. Remote Control ------------------------------------------- 21
5 Dimensions ------------------------------------------------------- 22
5.1. Indoor Unit ------------------------------------------------- 22
5.2. Outdoor Unit ----------------------------------------------- 23
6 Refrigeration Cycle Diagram -------------------------------- 24
6.1. CS-E7HKEW CU-E7HKECS-E9HKEW CU-
E9HKECS-E12HKEW CU-E12HKE ---------------- 24
6.2. CS-E15HKEW CU-E15HKE -------------------------- 25
7 Block Diagram --------------------------------------------------- 26
7.1. CS-E7HKEW CU-E7HKECS-E9HKEW CU-
E9HKECS-E12HKEW CU-E12HKE ---------------- 26
7.2. CS-E15HKEW CU-E15HKE -------------------------- 27
8 Wiring Connection Diagram --------------------------------- 28
8.1. Indoor Unit ------------------------------------------------- 28
8.2. Outdoor Unit ----------------------------------------------- 29
9 Electronic Circuit Diagram ----------------------------------- 31
9.1. Indoor Unit ------------------------------------------------- 31
9.2. Outdoor Unit ----------------------------------------------- 32
10 Printed Circuit Board ------------------------------------------ 34
10.1. Indoor Unit ------------------------------------------------- 34
10.2. Outdoor Unit ----------------------------------------------- 36
11 Installation Instruction ---------------------------------------- 38
11.1. Select The Best Location ------------------------------ 38
11.2. Indoor/Outdoor Unit Installation Diagram ---------- 38
11.3. Indoor Unit ------------------------------------------------- 39
11.4. Outdoor Unit ----------------------------------------------- 42
12 Operation Control ---------------------------------------------- 45
12.1. Basic Function-------------------------------------------- 45
12.2. Indoor Fan Motor Operation -------------------------- 46
12.3. Outdoor Fan Motor Operation ------------------------ 47
12.4. Airflow Direction------------------------------------------ 47
12.5. Quiet operation (Cooling Mode/Cooling area
of Dry Mode) ---------------------------------------------- 48
12.6. Quiet operation (Heating)------------------------------ 48
12.7. Powerful Mode Operation ----------------------------- 49
12.8. Timer Control --------------------------------------------- 49
12.9. Auto Restart Control ------------------------------------ 49
12.10. Indication Panel ------------------------------------------ 50
12.11. Patrol Operation------------------------------------------ 50
12.12. e-ion Operation------------------------------------------- 52
13 Protection Control ---------------------------------------------- 55
13.1. Protection Control For All Operations -------------- 55
13.2. Protection Control For Cooling & Soft Dry
Operation -------------------------------------------------- 57
13.3. Protection Control For Heating Operation --------- 58
14 Servicing Mode -------------------------------------------------- 59
14.1. Auto OFF/ON Button ----------------------------------- 59
14.2. Select Remote Control Transmission Code------- 59
14.3. Remote Control Button --------------------------------- 60
15 Troubleshooting Guide --------------------------------------- 61
15.1. Refrigeration Cycle System --------------------------- 61
15.2. Breakdown Self Diagnosis Function ---------------- 63
15.3. Error Codes Table --------------------------------------- 64
16 Disassembly and Assembly Instructions -------------- 66
16.1. Indoor Electronic Controllers, Cross Flow Fan
and Indoor Fan Motor Removal Procedures------ 66
16.2. Outdoor Electronic Controller Removal
Procedure-------------------------------------------------- 70
17 Technical Data --------------------------------------------------- 72
17.1. Operation Characteristics ----------------------------- 72
17.2. Sensible Capacity Chart ------------------------------- 88
18 Exploded View and Replacement Parts List ----------- 89
18.1. Indoor Unit------------------------------------------------- 89
18.2. Outdoor Unit ---------------------------------------------- 91
1 Safety Precautions
• Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
• Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and
main circuit for the model installed.
• The caution items stated here must be followed because these important contents are related to safety. The meaning of each
indication used is as below. Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage, and
the seriousness is classified by the following indications.
• The items to be followed are classified by the symbols:
• Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and
maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
This symbol denotes item that is PROHIBITTED from doing.