Ebasto eThermo Top Eco 20 P, Service Instructions Manual

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Contents Webasto
2 9039398A_WSM_eThermo_Top_Eco_EN
Contents
1 Introduction .............................................................. 3
1.1 About this document ................................................ 3
1.2 Purpose of the document ......................................... 3
1.3 Using this document ................................................. 3
1.4 Use of symbols and highlighting ............................... 3
1.5 Warranty and liability................................................ 3
1.6 Qualifications of installation personnel...................... 3
1.7 Spare parts ............................................................... 3
1.8 Safety precautions .................................................... 3
1.9 Statutory regulations governing installation .............. 4
2 Information about the unit and external components
.................................................................................. 5
2.1 Overview .................................................................. 5
2.2 Heater – general information .................................... 6
2.3 12 V wiring harness .................................................. 6
2.3.1
Electrical connection of coolant pump and
vehicle fan ................................................... 6
2.3.2 Vehicle battery (voltage stability) ................. 6
2.4 230 V heater supply cable / extension cable.............. 6
2.5 External components ................................................ 6
2.5.1
Coolant pump ............................................. 6
2.5.2 Power cable................................................. 6
2.5.3 Fan relay...................................................... 6
3 Functional description ............................................... 7
4 Technical data ........................................................... 8
4.1 Dimensions ............................................................... 9
5 Malfunctions and troubleshooting .......................... 10
5.1 Cause of malfunctions ........................................... 10
5.2 Table of causes of fault........................................... 11
6 Function checks....................................................... 12
6.1 General information ............................................... 12
6.2 Heater supply cable / extension cable...................... 12
6.3 Function check in the vehicle .................................. 12
6.4 Activation of vehicle blower.................................... 12
6.4.1
Fan relay.................................................... 12
6.5 Checking coolant pump .......................................... 12
7 Servicing ................................................................. 13
7.1 Servicing ................................................................ 13
7.2 Working on the heater............................................ 13
7.3 Maintenance........................................................... 13
7.3.1
Annual ...................................................... 13
8 Replacing the unit ................................................... 14
8.1 General information ............................................... 14
8.2 Required tools ........................................................ 14
8.3 Removal ................................................................. 14
8.3.1
Preliminary Work ....................................... 14
8.3.2 Pinch off the coolant hoses......................... 14
8.3.3 Release the hose clips ................................. 14
8.3.4 Removal ..................................................... 14
8.4 Installation............................................................... 15
9 Packaging/storage and shipping ............................... 16
9.1 General information ................................................ 16
9.2 Storage and transportation ...................................... 16
10 Wiring Diagram ......................................................... 17
10.1 Legend to wiring diagram........................................ 18
10.2 Legend for comments.............................................. 18
10.3 Pin assignments plug connection X1, 2-pin ............. 18
10.4 Pin assignments plug connection X2, 2-pin ............. 18
10.5 Pin assignments plug connection X9, 3-pin ............. 18
10.6 Cable colours .......................................................... 18