Ulma LAMBDA, Руководство по установке и обслуживанию

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9

Installation
Radiator system and expansion tank
Filling of the system shall be realized with all valves in open position and the circulation pump shall be
turned off. The system is carefully ventilated during the filling. When the unit has been running for a
couple of days ventilation and repeated filling should be made.
Note! See special instructions for filling of water.
The volume of the expansion tank is chosen in following way:
Open system: 5 % of the water volume in the heating system.
Closed system: The volume of the tank should be made from directions from manufacturer of closed
tanks.
In the table below examples of suitable expansion tanks for closed systems are shown.
Open system with 300 litres water volume requires at least 15 litres expansion tank.
* System volume = boiler pipe radiator volume
System volume (liter)* Opening pressure (bar) Oppression (bar) Tank volume (liter)
70˚C - 90˚C
Approx. 300 1,5 0,5 18
Approx. 300 1,5 1,0 35
Firing with pellets and electricity at the same time
You can fire with both pellets and electricity at the same time. At dimensioning of the expansion pipe
or safety valve this must be considered.
Dimensions according to BFS 1988:18, 3:416.
Planning- and installation work
The planning
– and installation work of the unit shall be made in a professional way with special
attention of common and local regulations and ordinances. .
The operation pressure is maximum 1,5 bar. Before the unit is put into work, and always at the
beginning of the combustion season following inspections should be made:
1. that the heating system is filled with water and ventilated
2. that the circulation pump is working
3. that the valves of the system are open
4. that potential control
– and safety automatic system is working
5. that the chimney has required draft and that the fresh air ventilation is open
Safety valve
If a closed expansion tank is installed to the radiator system, the safety valve should be controlled 3-4
times per year. Activate the valve by pressing or turning the control and then make sure that water is
entering into the waste pipe that goes from valve to drainage.
Maximal hot water capacity
If you have a higher setting of the boiler temperature, the better hot water capacity you get
(recommended setting
= 85˚C).
Filling of water
Before connecting of heat, the heating system has to be filled with water.
The filling of the systems is made in following way:
1. Open all stop taps, even the shunt valve. The pump shall be turned off.
2 Filling of water to boiler and radiator. Deareation is made on the radiators.
3 Delivery of cold water to the hot water coil. This is done by opening the stop tap on the cold water
fittings and ventilation is made by tapping out from a hot water tap.
4 When the system is completely filled the circulation pump can be started and heating begin.
5 When the water inside the boiler has reached set operating temperature, the pump should be turned
off and another airing be made on the radiators. This should be repeated several times. Keep in mind
that there is a lot of air inside the tap water. The volume can go up to approx. 8-10% why deaeration
can take time
– especially at bigger volumes. Closed systems shall be filled so that the manometer
stands at the desired system pressure, distance from the manometer to the highest located radiator
in meter x 0,1 which gives the system pressure in bar. Set the red pointers of the manometer at the
same value as the big pointer. Preferred hot water temperature is set on the mixing fittings.