Table Of Contents - Vaillant TURBOmax VUW 242 E Instructions For Installation And Servicing

1. Introduction
2. Boiler Specification
2.1 Technical Data
2.2 Dimensions
2.3 Boiler connections
2.4 Function diagram
3. General Requirements
3.1 Related documents
3.2 Boiler location
3.3 Gas supply
3.4 Flue system
3.5 Air supply
3.6 Electricity supply
3.7 Guide to system requirements 10
4. Boiler installation sequence
4.1 General
4.2 Boiler delivery
4.3 Preparation of boiler location 14
4.4 Installing the flue system
4.5 Mounting the boiler
4.6 Connecting the flue assembly
to the boiler
4.7 Electrical installation
4.8 Controls
5. Commissioning
5.1 Preliminary electrical checks 22
5.2 Gas supply
5.3 Water supply
5.4 Filling the heating system
5.5 Initial system flush ('cold')
5.6 Initial lighting
5.7 Gas inlet working pressure
5.8 Main burner pressure
5.9 Adjusting central heating
output (range rating)
5.10 Functional checks
5.11 Checking flame
supervision device
5.12 Final system flush ('hot')
5.13 Fitting case
5.14 Handing over to user
2
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3 6. Servicing
6.1 Initial inspection
4 6.2 Routine maintenance
4 6.3 Re-commissioning the boiler
5
5 7. Parts replacement
6 7.1 Initial preparation
7.2 Fan
7 7.3 Air pressure switch
7 7.4 Burner
7 7.5 Electrodes
8 7.6 Temperature sensor (NTC)
8 7.7 Gas valve
10 7.8 Main Heat exchanger
10 7.9 CH expansion vessel
7.10 Transformer
7.11 Overheat thermostat
13
7.12 Pump
13 7.13 Automatic air release
13 7.14 Automatic bypass
7.15 Diverter valve
16 7.16 Pressure and temperature
16 gauge
7.17 Differential pressure switch
17 7.18 DHW microswitch
19 7.19 DHW heat exchanger
20 7.20 Circuit boards
22 8. Fault finding
8.1 Introduction
22 8.2 Logical fault finding procedure 44
22 8.3 Fault finding charts
23
23 9. Electrical diagrams
24 9.1 Functional flow diagram
25 9.2 Wiring diagram
25 9.3 Schematic appliance
circuit diagram
26
27 10. Short parts list
11. Supplementary LPG
28
information
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Leave these instructions with the user
when the installation is completed.