Service Manual Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Outdoor Unit | 3
Bosch Thermotechnology Corp. | 04.2020
Data subject to change
Table of Contents
1 Key to Symbols and Safety Instructions 4
1.1 Key to Symbols 4
1.2 Safety 4
2 Part Names and Model Numbers 6
2.1 Model Numbers 6
3 Dimensions and Clearances 7
4 Installation Details 8
4.1 Torque Requirements 8
4.2 Connecting the Cables 8
4.3 Pipe Length and Elevation 8
4.4 First Time Installation 8
4.5 Adding the Refrigerant to an Existing System 9
4.6 Re-Installation / Indoor Unit Needs to be Repaired 9
4.7 Re-Installation While the Outdoor Unit Needs to be Repaired 10
4.8 Operation Characteristics 11
5 Electronic Functions 12
5.1 Abbreviation 12
5.2 Display Function 12
5.3 Main Protection 12
5.4 Operation Modes and Functions 13
6 Error Codes 18
6.1 Error Codes - Wall Mounted Indoor Unit 18
6.2 Error Codes - 4-Way Cassette Indoor Unit 19
6.3 Error Codes - Ducted Indoor Unit 20
6.4 Quick Check by Error Codes 21
7 Wiring Diagrams 22
7.1 ODU PCB & IPM 22
7.2 Indoor Wiring Diagram 33
7.4 Outdoor Wiring Diagram 36
8 Diagnosis & Solution 41
8.1 EEPROM parameter error (E0/F4) 41
8.2 Indoor / outdoor unit’s communication (E1) 42
8.3 Zero crossing detection error (E2) 45
8.4 Fan speed has been out of control (E3 / F5) 46
8.5 Open circuit or short circuit of temperature sensor 48
(E4 / E5 / F1 / F2 / F3 / P7) 48
8.6 Refrigerant Leakage Detection (EC) 49
8.7 Water-level Alarm Malfunction (EE) 50
8.8 Overload current protection (F0) 51
8.9 IPM malfunction or IGBT over-strong current protection (P0) 52
8.10 Over voltage or too low voltage protection (P1) 55
8.11 High temperature protection of IPM module or
compres sor top (P2) 56
8.12 Inverter compressor drive error (P4) 57
8.13 Low pressure protection (P6) 58
8.14 High temperature protection of indoor coil in
heating mode (J0) 59
8.15 High temperature sensed at outdoor coil (J1) 60
8.16 High temperature sensed at compressor discharge line (J2) 61
8.17 PFC module protection (J3) 62
8.18 Communication error between outdoor unit main
PCB and IPM control (J4) 63
8.19 High pressure switch open (J5) 64
8.20 Low pressure switch open (P6/J6) 65
8.21 AC Voltage protection (J8) 66
8.22 Main Parts Check 67
9 Disassembly Guide 73
9.1 Models: 9K Regular: BMS500-AAS009-1CSXRA 73
9.2 Models: 12K Regular: BMS500-AAS012-1CSXRA
9K & 12K Hyper Heat: BMS500-AAS009-1CSXHB,
BMS500-AAS012-1CSXHB 76
9.3 Models: 18K Regular: BMS500-AAS018-1CSXRA 79
9.4 Models: 18K Hyper Heat: BMS500-AAS018-1CSXHB 82
9.5 Models: 9K, 12K & 18K Hyper Heat:
BMS500-AAS009-1CSXHB, BMS500-AAS012-1CSXHB,
BMS500-AAS018-1CSXHB 83
9.6 Models: 24K Regular: BMS500-AAS024-1CSXRA
24K Hyper Heat: BMS500-AAS024-1CSXHB
30K & 36K Light Commercial for Wall Mounted IDU:
BMS500 -A AS030-1C SXRB, BMS50 0-A AS036-1CSXRB
36K Light Commercial for Ducted & Cassette IDU:
BMS500-AAS036-1CSXLB 84
9.7 Models: 48K & 60K Light Commercial:
BMS500-A AS048-1CSXLB, BMS500-A AS060-1CSXLB 87
9.8 All Models 90
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