Noritz GHQ-C2801WX-FF US, Руководство по установке, Страница: 46 / 84

46
Make-up Water
Pressure Reducing Valve
Shutoff valve Backflow Preventer
• The Combi Boiler is equipped with an auto feeder
valve.
Therefore, installation of additional system water
fill connection is not necessary in most cases.
See the following figure for an example of a water
fill installation using the built-in connection.
9.4 Auto Feeder Connection
Circulator
Make-up Water
To System
From System
Air Separator
Expansion Tank
Ball Valve
Isolation
Valve
Pressure Gauge
Backflow
Preventer
Pressure
Reducing Valve
In case of External Water Feeder Usage
NOTE
Even though this Combi Boiler is
equipped with an auto feeder valve,
it may not be enough to fill the whole
heating system (e.g. pipes, appliance,
each zone) with water.
The built-in Auto Feeder will be
used for filling primary loop and
maintaining the system pressure.
Therefore, the manufacturer
recommends to fill the whole heating
system with water and to purge all air
from the whole system manually.
DO NOT fire up the Combi Boiler
before filling the entire system.
Refer to the page 68 for water filling
procedure.
• External water feeder may be installed on
the system piping if it is required for specific
applications. See the following figure for an
example of external water feeder installation on
the system piping.
• If the heating system does not require the Auto
Feeder (the internal water feeder) operation, plug
the Auto Feeder Water Inlet Connection. And set
“Auto Feeder Activation” OFF.
* Refer to page 62 for changing “Auto Feeder
Activation” Setting.
Connecting the Heating Pipe