Cadel aquos 15, Installation, Use And Maintenance Manual

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64
AQUOS - IDRON
EN
IT IS STRONGLy RECOMMENDED TO WASH THE ENTIRE SySTEM BEFORE CONNECTING THE
STOVE IN ORDER TO GET RID OF RESIDUES AND DEPOSITS.
Upstream from the stove, always install gate valves so as to disconnect it from the
plumbing system should it be necessary to move it, or when it requires routine and/or
special maintenance. Connect the stove using hoses so that the stove is not connected
too tightly to the system, and to allow slight movements.
The pressure discharge valve (C) must always be connected to a water drain pipe. The
pipe must be adequate to support the water’s high temperature and pressure.
Fig. 14 - Plumbing connection
LEGEND
A Tap
B Domestic system
C Pressure discharge
D Hoses
6.4 SYSTEM FILLING
To fill the system, the stove can be equipped with an end piece (optional) with a check valve (D), for
manual filling of the heating system (if the optional is not installed, the filling tap on the main boiler will be
used). During this operation, any air in the system is released from the automatic vent valve located under
the top.
To allow the valve to vent, it is recommended to loosen the grey cap by one turn and leave the red
cap locked (see figure). The filling pressure of the system WHEN COLD must be 1 bar. If during operation
the system pressure drops (due to evaporation of gases dissolved in the water) to values lower than the
minimum ones indicated above, the user must use the filling tap to bring the pressure back up to its initial
pressure.
For proper operation of the stove WHEN HOT, the pressure in the boiler must be 1.5 bar.
To monitor system pressure, the end piece (optional) is equipped with a pressure gauge (M).
Upon completion of this filling operation, always close the tap.