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PROTECTION OF THE SCREW CONVEYOR AND THE GEARBOX
The feeder motor is additionally protected against overload in form of a ther-
mal fuse, which automatically switches the feeder off in the event of overheating.
PRESSURE RELIEF VALVE
The boiler is equipped with a factory-installed with the 2.5 bar pressure relief va-
lve, being an additional protecting device against the pressure increase when water
freezes in part of the system, and in the expansion vessel in particular. The installer
is obliged to connect a pipe discharging water from the pressure relief valve to
the drain or at the lowest possible level near the floor.
Additionally, an analogue thermometer is installed for a control temperature re-
adout or in the event of the control system failure. The heating system should be
equipped with a measuring and monitoring device for pressure readout, in form of a
manometer.
THERMAL PROTECTION VALVE PROTECTING AGAINST OVERHEATING
(additional accessory)
In its standard version, the SAS BIO SOLID boiler is equipped with a connec-
tor for installation of the temperature sensor with a capillary tube; the thermostat
valve (optional), e.g., Regulus type BVTS is a thermal protection device for a bo-
iler installed through the heat exchanger in an open vented system with the plate
exchanger or for the boiler installed in the sealed system, e.g., SYR, type 5067.
When the boiler is overheated (jacket temperature above 95°C) the thermal pro-
tection valve installed on the boiler is opened, the water supplied from the water
supply system cools the boiler, flows from the system to the cooling well, and then
to the sewage system. A detailed description of the valve operation and connec-
tion is described in Chapter 7.4 Boiler connection to a heating system.
When the thermostat valve is not installed, the connector must be secured with a plug.
13. DELIVERY TERMS AND CONDITIONS
The boilers for sale are delivered in an assembled condition, with a set of tools for
they operation and with the operation and maintenance documentation (see Chapter
4 "Setting a boiler").
The boilers are installed at the factory on a transport pallet, protected with a pla-
stic film against weather conditions. Brackets are installed for boiler transport with a
pallet/fork lift truck. Individual boiler components can be dismounted: the fuel feeding
system, the fuel reservoir, front door insulation and the temperature sensors, for boiler
transport and installation in the boiler room.
When the fuel feeder must be dismantled, it can only be reinstalled by a qualified
installer! Incorrect connection of cables may damage the regulator.
NOTICE:
Boilers must be transported in a vertical position! Store in roofed and well-
-ventilated rooms! Secure the load against damage! When the boiler is damaged
(in transport), do not use it but contact the manufacturer maintenance service.
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