Operation Manual

Water
08-4
Hot water supply
Hotwaterissuppliedbymeansofthehot-airheatingsystem
withitsintegratedhot-waterboiler (see also Chapter 10.2);
theoptionsforsettingsaredescribedonp.10-05“Changing
thehotwatertemperature”.
Theboilerwillautomaticallyemptyitselfviaasafetyoroutlet
valveifthereisdangeroffrost (see also 10-13 Frost Control).
Position of the Frost Control valve
TheFrostControlvalveisalwayslocateddirectlybythe
model-specicplaceofinstallationforthehot-airheating
system.
Thenon-electricsafetyordrainvalvewillautomatically
openattemperaturesunderapprox.3°Canddrainthe
boilercontentsviaadrainnozzle.
Ifthecoldwatersystemisoperatedwithouttheboilerthe
boilertankwillstillllwithwater.Inordertoavoidfrost
damagetheboilermustbedrainedviathedrainvalve,
evenwhennotinuse.