Bosch GWH18 - Default Chapter; Table of Contents

6 720 819 528 (2016/02) Therm 4000 S
2 | Index
Index
1 Key to symbols and safety instructions . . . . . . . . . . 3
1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 General safety instructions . . . . . . . . . . . . . . 3
2 Product details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 EC Declaration of Conformity . . . . . . . . . . . . 5
2.2 Type overview . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Material attached . . . . . . . . . . . . . . . . . . . . . 5
2.4 Rating plate . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5 Description of appliance . . . . . . . . . . . . . . . . 5
2.6 Accessory (not supplied with the appliance) 5
2.7 Dimensions and minimum clearances . . . . . 6
2.8 Appliance layout . . . . . . . . . . . . . . . . . . . . . . 7
2.9 Electrical wiring diagram . . . . . . . . . . . . . . . 8
2.10 Specification . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Operation instructions . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Digital display - description . . . . . . . . . . . . 10
3.2 Before commissioning the appliance . . . . . 10
3.3 Switching the appliance on/off . . . . . . . . . . 10
3.4 Temperature control . . . . . . . . . . . . . . . . . . 11
3.5 Programming button . . . . . . . . . . . . . . . . . . 11
3.6 Draining the appliance . . . . . . . . . . . . . . . . 11
3.7 Codes of errors in the display . . . . . . . . . . . 12
3.8 Cleaning the front of the appliance . . . . . . 12
4 Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Installation (only by qualified contractors) . . . . . . 12
5.1 Important notes . . . . . . . . . . . . . . . . . . . . . . 13
5.2 Choice of installation site . . . . . . . . . . . . . . 13
5.2.1 Regulations concerning the installation
site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3 Minimum distances . . . . . . . . . . . . . . . . . . . 13
5.4 Fitting wall-mounting bar . . . . . . . . . . . . . . 14
5.5 Fitting the appliance . . . . . . . . . . . . . . . . . . 14
5.6 Water connection . . . . . . . . . . . . . . . . . . . . 14
5.7 Gas connection . . . . . . . . . . . . . . . . . . . . . . 15
5.8 Altitude of installation site region . . . . . . . . 15
5.9 Remote control connection . . . . . . . . . . . . 15
5.10 Commissioning of the appliance . . . . . . . . 16
6 Electrical connection (only by qualified
contractors) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
6.1 Connecting the power cable . . . . . . . . . . . . 17
6.2 Replacing the power cable . . . . . . . . . . . . . 17
7 Regulating the gas (only for qualified
contractors) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
7.1 Factory regulation . . . . . . . . . . . . . . . . . . . . 17
7.2 Service function . . . . . . . . . . . . . . . . . . . . . 17
7.3 Adjusting the appliance . . . . . . . . . . . . . . . 17
7.3.1 Access to the pressure heads . . . . . . . . . . . 17
7.3.2 Adjusting the maximum flow
(Parameter P1) . . . . . . . . . . . . . . . . . . . . . .18
7.3.3 Adjusting the minimum flow
(Parameter P2) . . . . . . . . . . . . . . . . . . . . . .18
7.3.4 Adjusting pressure in the burner
(Parameter P0) . . . . . . . . . . . . . . . . . . . . . .19
7.4 Factory default settings . . . . . . . . . . . . . . . 19
7.5 Changing the type of gas . . . . . . . . . . . . . . 19
8 Maintenance (only by qualified contractors) . . . . 19
8.1 Remove the front cover . . . . . . . . . . . . . . . 20
8.2 Periodic maintenance works . . . . . . . . . . . 20
8.3 Replacement of fuses (control box) . . . . . . 20
8.4 Start-up after completion of maintenance
works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
9 Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . 22
11 Warranty Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23