Connection Of The Boiler; Accumulation - Orlanski ORLIGNO 200 Instruction Manual & Service Manual

3. Connection of the boiler.

Necessary part of gasification boiler installation is four way mixing valve ( if boiler is connected
without accumulation tank). Hot water supplied from boiler is mixed with return water from
installation in four way valve in order to avoid „cold return" and keep stable, high temperature in
the boiler – at the same time temperature of water feeding heating installation is high enough to
maintain comfort conditions in rooms. Valves can be installed in open or pressurized systems.
Pic.3 Connection scheme of ORLIGNO boiler with four way mixing valve and water heater.

3.1. Accumulation

The most effective way of utilizing gasification process is boiler installation with accumulation
tank.
Such a installation allows to decrease fuel usage for about 40%. Gasification process ( if proceeds
in optimal way) generates huge amount of wood gases, while demand for heat from heating
system is changeable.
Gasification process is only to some degree controlled, fluctuation in heating system are much
more dynamic – possibility to overheat rooms or removal of extra heat (exhaust gases) through
the chimney. Installation with accumulation tank allows to collect whole created gas ( after
burning) in form of heat in the tank. Heating system is feed with accumulation tank for up to 48 h(
depends on accumulation tank capacity and thermal conditions – on the assumption that 1 kw of
installed power = 55 litres of water in tank .
Boiler installation with accumulation tank allows to prolong boiler lifespan.
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1. Four way mxing valve,
2. Circulation pump
3. Room thermostat
4. ORLIGNO boiler with Ekoster 2
5. Radiator
6. Water heater
7. Differential valve
8. Pressurized vessel
9. Hot water outlet
10. Cold water inlet
11. Safety group