Dangers Of Pressure; Possible Poisoning; Requirments For Conecting Eletrical Part; Attachements - Stropuva S7 Technical Passport Installation And Maintenance Instructions

Pressure can get higher: in case of power loss when circulation pump stops working, boiler
is not fi lled with cold water from heating system and temperature rises to the critical point, then
draft regulator is turned on, it closes the valve at the selected temperature, therefore air is not
supplied and boiler is extinguished. Water in boiler won't start boiling because fi rewood is extin-
guished fairly quickly as there is only one layer burning. If air inlet valve is damaged or because
of other breaches of exploitation rules (for example, door for ash removal is left open) the water
in boiler can start to boil. Therefore safety valve (fi g. 7) of 1,5 bar must be used; it is mounted at
the top part of boiler near the fl ue (see 6.2; 6.3; 6.4 in connection diagrams).
According to fi gure 8 we recommend connecting gravity controlled radiator (radiator without
thermos-valve). Hot water goes through balance tap (1) (fi g. 8) to nearest radiator which can
work in gravity circulation mode so that in case of power loss boiler would be protected from
overheating.
(bk1) – pressure of safety balance tap of gravity circulation radiator must be such that return
pipe of radiator would be 40
When fl ue is clogged up or while ashes are cleaned, carbon monoxide can accumulate in
boiler room, therefore natural ventilation with air pull is needed, air inlet ventilation is needed for
it to work – it can be opening or open window in outer wall of the building. If there is no inlet ven-
tilation, boiler won't work. So don't forget about inlet ventilation on boiler room, this ventilation
must be directly connected to the outside. Door of the boiler room must be shut tightly, so that
when ventilations of compulsory connection nodes are turned on, work of the boiler wouldn't be
interfered with and dust or carbon monoxide would not be able to get into living quarters.

9.4 REQUIRMENTS FOR CONECTING ELETRICAL PART

Circulation pumps that are used in the system use electric energy. They must be connected
by a person with qualifi cation of electrician and with permission for this job.
Possible effect of electric current on human being.
Electrical installation must be carried out according to governmental requirements.
Attachments for the boiler must be ordered separately.
Electric controller – selects the most effi cient operation mode and periodically slows down
the work of boiler when premises accumulates enough warmth, but does it in delicate manner.
When premises get cold, boiler is turned on again and premises accumulate warmth as if they
were warmth accumulation tanks. User only needs to select the program that is suitable for type
of fuel to be used and rest phase according to outside climate. Controller works with thermostat
of the room. This device enables to burn one load of fuel longer, sometimes even twice longer.
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TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

9.2 DANGERS OF PRESSURE

C colder than supply pipe.
o

9.3 POSSIBLE POISONING

10. ATTACHEMENTS

10.1 ELECTRONICAL CONTROLLER