Vaillant ecoTEC plus 418 - Page 4

3.11
Draining tap
3.12
Safety valve
3.13
Bypass
3.14
Pump specification
3.15
Cleanser and inhibitor
3.16
Water pressure loss
3.17
Open vented heating system
3.18
Sealed water Systems
3.18.1
Safety valve
3.18.2
Expansion vessel
3.18.3
Pressure gauge
3.18.4
Water make up
3.18.5
Filling a sealed water system
4
Boiler installation sequence
4.1
Boiler location
4.1.1
Sheet metal parts
4.1.2
Clearances
4.1.3
Timber frame buildings
4.1.4
Contents included with delivery
4.2
Flue exit
4.2.1
Other flue options
4.3
Fitting the boiler hanging bracket
4.3.1
Boiler fixing
4.3.2
Removing the front casing
4.3.3
Gas connection