Wolf CGB-75 - Installation

173062555_201804
10.Installation
Heatingcircuitconnectionset
We recommend you connect the heating system with the aid
of a heating circuit connection set.
Connection set comprising: Connection to the appliance with
atgasket,connectiontoheatingow/returnwithballvalves
1" female thread.
Note:
Provideadrain&llvalveatthelowestpointinthesystem.
Fig.:Heatingcircuitconnectionset(accessory)
Fig.: Pump assembly (accessory)
TheCGB-75andCGB-100havenotbeenttedwithanex-
pansionvesselat the factory.Thismust bettedexternally
(available from the Wolf accessories range). The expansion
vesselmustbesizedsufciently,inaccordancewithDIN4807.
Theremustbenoshut-offvalve between the
expansion vessel and the condensingboiler,
otherwisethepressurebuild-upwouldperma-
nentlydamagetheboilerduringheating.There
isariskofsystemcomponentsrupturing,giving
risetoariskofscalding.
Thisdoesnotincludebutteryvalvesupstreamoftheexpan-
sionvessel.The pumpor tting assemblyincludes a 3bar
safety valve (6 bar safety valve is available as an accessory).
Route the discharge pipe line into a drain funnel. The mini-
mum system pressure is 1.0 bar. The boilers are approved
exclusively for sealed systems of up to 6 bar. The maximum
owtemperatureisfactory-setto80°Candmaybeadjusted
to 90°C if required.
Safetyequipment