Ariterm Biomatic plus 50, Installation, Operation And Maintenance Manual

ARITERM SWEDEN AB

Installation, Operation & Maintenance - 

2009.02.18- 9/32

Planning and installation

Planning and installation shall be carried out in a professional manner, attention being 

paid to general and local rules and regulations. Operating pressure is max. 1,5 bar. 

Before taking the installation into service, and always at the beginning of the heating 

season, the following checks shall be carried out:

that the heating system is filled and bled

• 

that the circulation pump is working

• 

that the system valves are open

• 

that the automatic control and safety devices are in working order

• 

that the chimney has the necessary draught and that the fresh air ventilation  

• 

is open.

Safety valve

If a closed expansion vessel has been installed in the radiator system, the safety valve 

must be checked 4 times a year. Activate the valve by pressing or turning the control 

button and check that water escapes from the overflow pipe connecting the valve to 

the drain.

Elecktrical installation

The connection is made in accordance with the wiring diagram annexed to this ma-

nual. Also the use of a safety switch (burner switch) is recommended. The other con-

nection cable delivered with the burner is for boiler temperature and flue gas sensors. 

Work on the burner may only be carried out by a qualified serviceman. Make sure to 

cut the power supply to the burner before servicing.

Before you begin heating, the heating system must be filled with water.

To fill the system, do as follows:

Open all shut-off valves, including the shunt valve.  The pump must be switched 

1. 

off.   
Fill the boiler and the radiator system with water.  Bleed the system at the radia-

2. 

tors.  
Once the system is filled completely, the circulation pump can be started and  

3. 

heating can begin.  
When the boiler water has reached its pre-set operating temperature, the pump 

4. 

should be stopped and the system bled at the radiators once again. This should be 

repeated several times.  

Remember that much air is enclosed in tap water. The enclosed air volume may reach 

as much as 10%, which explains why bleeding takes time – especially where there are 

large water volumes. A closed system shall be filled until the pressure gauge indicates 

the correct system pressure, i.e. the distance from the pressure gauge to the highest 

radiator in meter times 0,1 which gives the system pressure in bar.

Adjust the red needle of the pressure gauge to the same value as the big needle.

Heating with electric heating element

Ariterm B 20 and B 30 has been fitted with a factory wired 3-phase 

6/9 kW electric heating element. The power of electric heating elements can be ad-

justed in service menu.

FILLING OF WATER

WATER PIPING