Protherm 100 Manual for instruction and use - page 6
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of view, it is recommended that a reservoir
is installed near the building to be heated,
and refilled by an authorised organisa-
tion.
Adequately sized propane supply from
the reservoir to the boiler and to other gas
appliances will then be part of the design
and delivery of the reservoir. When install-
ing a propane gas-fired boiler, an accurate
nominal pressure of 3.0 kPa (30 mbar)
must be secured by installing a reduction
valve (station) before the boiler.
Supply of combustion air
Ventilation must guarantee that sufficient
quantity of combustion air is supplied to
the boiler and that the maximum permis-
sible concentrations of harmful gases
in the boiler’s vicinity are not exceeded
and that an acceptable temperature is
maintained there (all in accordance with
Ministry of Environment Public Notice No.
706/2002).
The stationary cast iron PROTHERM
KLO/KLO EKO boilers draw combustion
air from the space in which they are in-
stalled. The combustion air supplied to the
boiler must be free of dust and corrosive
and flammable substances (vapours, sol-
vents, paints, adhesives, etc.). The sup-
ply of adequate quantity of combustion
air must meet the requirements of STN
070703 “Gas-fired boiler rooms”. Gas ap-
pliances connected to combustion fumes
flue must not be located in places where
negative pressure can be created by ven-
tilation fans.
Combustion fumes exhaust
The boiler is designed for combustion
fumes to be removed into a chimney (via
a chimney connection point) with a stabi-
lised thrust of at least 2 Pa. The boiler is
connected to the chimney by a flue of a
diameter corresponding to the flue diam-
quired by the water composition. Depend-
ing on the anticipated amount of sludge
trapped; is recommended to desludge the
boiler approximately a week after it has
been put into operation. Functional defects
caused by mechanical dirt are not covered
by the manufacturer’s overall warranty (re-
fer to Warranty Terms and Conditions).
Important:
When filling the boiler with
water, all air in the boiler as well as in
the heating system has to be thoroughly
bled.
Using antifreeze liquid
KLO and KLO EKO boilers may be filled
with an antifreeze liquid, namely product
called ALYCOL TERMO, produced by
Slovnaft Moravia. Using other antifreeze
products will invalidate the manufacturer’s
warranty on parts and related costs.
Properties of the heating system
and filling the system with water
The boiler must be connected to the heat-
ing system distribution pipes (G6/4”) and
to the gas supply pipe (G 1”) in such a way
that the connection end pieces are not
stressed by forces imposed by the heat-
ing system distribution pipes or by the gas
supply pipe. The connection end pieces
have an external thread.
We recommend equipping the connection
eter of the flue connection point (depends
on the boiler size). The flue is part of the
delivery.
It is forbidden to put inside the flue objects
obstructing the flow of combustion fumes
(e.g. various types of heat exchangers to
increase utilisation of the heat).
Construction of the flue and the chimney
must comply with STN 06 1610, STN 73
420 and STN 73 4201 standards.
By complying with requirements of these
standards, we prevent undesirable phe-
nomena from occurring, such as exces-
sive cooling of the fumes, penetration of
dampness into walls, fluctuations in the
chimney effect (thrust) and thus undesir-
able effects on the boiler’s functioning.
Requirements on heating water
quality
The PROTHERM KLO / KLO EKO boilers
are designed for heating water of up to
400 kPa (4 bar) gauge pressure, which is
in compliance with STN 07 7401.
The first fill as well as top up water must
be clear and colourless, and be free of
suspended substances; oil and chemi-
cally corrosive additives, under no circum-
stances may be acidic (i.e. have pH factor
greater than 7) and must have minimal
carbonate hardness.
For softening the first fill water can be used
trisodium phosphate or a one-off dose of
chelating agent.
It is recommended to install before the
boiler (i.e. to the return heating water pipe)
a sludge trap. Its design should allow the
device to be emptied in regular intervals
without draining a great deal of heating
water in the process. The sludge trap can
be combined with a filter, but the filter itself
would not provide adequate protection.
Both the filter and the sludge trap must
be checked regularly and cleaned, as re-
pipes with isolation valves, so that when
repairing the boiler it is not necessary to
drain water from the heating system.
The heating system should be designed
in such a way that a permanent circulation
of the heating water is possible at least
through some radiators.
The boiler does not have an expansion
vessel or a safety valve built in, therefore
these devices can be connected only to
an external system, designed in accord-
ance with STN 06 0310 and safety fea-
tures compliant with STN 06 0830.
The boiler can work in systems with both
an open and closed (pressurised) expan-
sion vessel. However, when using the
boiler in systems with an open expansion
vessel, it is necessary to harmonise the
temperature setting of the emergency
thermostat (98°C) and limit the operation
range on the heating controls. This setting
must be done by authorised service only.
In open expansion vessels, correct water
level must be maintained (between the op-
erating minimum and maximum). Closed
expansion vessels when being filled up
must be set according to the heating sys-
tem.
For filling and draining purposes, the boiler
is equipped with a filling (draining) valve.
After being filled up, the system must be
thoroughly bled.
After reconstructions, in unsuitable build-
ing disposition, etc., the boiler may be
connected to the heating system and to
the gas supply by flexible hoses, but only
those designed for this purpose. When us-
ing flexible connections, these should be
as short as possible, protected against
mechanical and chemical stress and dam-
age, and be always replaced before the
end of their life or before their parameters
deteriorate with new ones (as determined
by their manufacturer).
Fig. 4