Technical data

6. Connecting and exploitation

6.1. Connection

Four-way mixing valve is essential for any installation. It’s role is to mix hot water (contribution

water) with the one returning from the system. Water mixing is necessary as to avoid „cold return

of the water” and to keep the same temperature of the boiler. What follows the temperature of

heating system’s feeding can be lowered to the temperature of satisfactionary warmth in the

house. Mixing valves should be used both in gravity system and with extorted ow (pump).

1. Four-way mixing valve Ex. MEX-

THERM or MUT (available in Eko-Vimar

Orlański’s offer)

2. Circulating pump

3. room temperature sensor (for the RK

2001 regulator) or room thermostat (for

the RK 2001 and EKOSTER2 regulator)

4. ORLAN BOILER with RK 2001 r EKO-

STER 2 regulator

5. heater

6. OKCV operational water heater

7. Differential valve

8. Compensating vessel

9. Exit for warm operational water

10. Cold water entry

Rys. 4 An exemplary scheme of the Orlan boiler, four-way mixing valve and water heater’s con-

necting.

6.2. Wood and gasication

It is important that wood gasication boilers worked in specic conditions. Boiler’s temperature

accounts for 70 - 80°C. At lower temperatures gasication process doesn’t proceed in a correct

way and what follows - wood intake is relatively higher. Wood drying in a loading chamber is an

essential stage in gasication process - wood doesn’t have adequate temperature at lower tem-

peratures and all of the process is inadequate. Main warmth source in Orlan boilers is gas ame

arising during gasication , if main conditions according correct burning process aren’t taken,

then both quality and quantity of released gas won’t be sufcient.

Very important are: quality, humidity and kind of burned wood. Hard wood is the best - (beech,

oak, hornbeam etc.) at 25 up to 15% humidity. Using different kind of wood, such as pine, spruce

etc. is possible but there will be more burning waste at the sides and it will be necessary to load

the chamber more often. Hygrometer is for humidity measuring - it helps to select wood at best

quality (there is a guideline diagram of wood’s humidity on the next page).

NOTICE!

Mixing valve „1” should be set-

ted at 50% mixing