Wolf COB, Technical Manual And Installation Instructions

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13 Installation - boiler/cylinder
Example: COB-15/20/29 oil condensing boiler with TS stratification cylinder on the right,
floorstanding (when looking at front of boiler). The pipework for the heating
flow and heating return, as well as the heating water flow and heating water
return, are connected to the stratification cylinder with corrugated stainless
steel pipes (accessories).(see Chapter “Installation - accessories”)
Fig.: Cold water connection to DIN 1988
Non-return valve (individually tested) Drain S
hut
-of
f
valve Pressure reducing valve Shut
-of
f v
alve
Cold
water
supply
Pressure gauge connection Drinking water filter
Safety valve (Individually tested)
Drain
above top edge of the cylinder
Boiler flow
Boiler return
Cold water connection A maintenance valve must be installed in the cold water supply line. If the pressure of
the cold water supply is more than the maximum permitted operating pressure of
10 bar, a tested and certified pressure reducer must be installed.
If mixer taps are used, provide a centralised pressure reducer.
Observe the regulations of DIN 1988 as well as those of your local water supply utility
when connecting cold water and DHW. Your warranty rights may be lost if the installation
does not comply with the illustration shown.
When installing the stratification
cylinder, ensure that the ON/OFF
switch of the cylinder charging pump
is set to constant pressure.
Information on the electrical
connection is located in the Electrical
connection chapter.
Fig.: TS stratification cylinder
Heating return 1"
Heating flow 1"
ON/OFF switch
Cold water connection ¾“
DHW connection ¾ “
Cylinder connection