Protherm Tiger 24 (12) KTZ Operating And Installation Manual - Thermostatic Radiator Valves
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Thermostatic radiator valves
If a room control unit is installed, at least
one of the radiators in the reference room
must be without a thermostatic valve. For
better temperature comfort, we recom-
mend to leave all radiators in the referen-
ce room without a thermostatic valve.
Domestic HoW system
The HoW pressure must be 1 to 6 bars. If
the pressure exceeds 6 bars, a reduction
valve combined with a safety valve must
be installed at the inlet.
In areas with very hard water we recom-
mend to implement suitable measures to
reduce the water hardness.
Installing the boiler
Mounting the boiler
When mounting the boiler, proceed in ac-
cordance with design documentation con-
ditions (e.g. wall load-bearing properties,
chimney inlet, pipe inlet and outlet con-
nections).
Mounting procedure (Fig. 12):
1. To fix the boiler mounting bar (part of the
boiler delivery) on the supporting wall
mark a line along the top edge of the bo-
iler (Fig. 12, pos. 4). Use a level.
2. Place the mounting bar on the marked
line (Fig. 12, pos. 3) and mark the holes
in the bar onto the wall. Then drill the
marked holes to the required diameter.
Insert the brackets into the drilled holes,
position the bar and secure it using ap-
propriate screws.
3. If the boiler model with forced combusti-
on gas extraction (KTZ) is being moun-
ted, and the flue duct is terminated in a
façade wall (Fig. 12, pos. 2), measure
the opening for the concentric duct (see
the boiler connection dimensions).
4. Mount the boiler on the mounting bar.
5. In the case of model KTZ, install a com-
bustion gas extraction pipe. The space
between the pipe and opening in the wall
is to be filled using non-flammable mate-
rial.
Connecting the boiler to HeW, HoW
and gas pipes
The boiler connection end pieces must
not be subjected to any forces from the
heating water, domestic hot water or gas
piping system. This requires accurate po-
sitioning of all connection pipes, vertically
(height) as well as the distance from the
wall and mutual distance between inlets
and outlets.
We recommend to design the heating sys-
tem in such a way that when making re-
pairs, it will be possibly to drain the whole
heating system from the boiler.
After reconstructions, in unfavourable
building dispositions, etc., it is possible
to connect the boiler to the heating sys-
tem, the domestic HoW system as well as
the gas supply by flexible hoses, but only
those designed for that purpose. Flexible
components should be as short as possi-
ble, must be protected against mechani-
cal and chemical loads and damage, and
must be replaced with new ones before
the end of their useful life cycle or reliabili-
ty to meet their nominal specifications (as
stated by their manufacturers).