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Dimensioning
Highest suitable charge temp =(Safety thermostate
breaking temp - 5-10°C)
Minimum suitable inlet temp to boiler bottom (according
to boiler manufacturer instructions)
Dt = Differential temperature between boiler inlet and outlet
Boiler output
Boiler output / Dt = Flow –>
(P kW x1000) / (Dt x 1.16) = Q 1/h
Example: (30 kW x 1000) / (20°C x 1.16) = 1293 1/h
Valve pressure drop + pipe system pressure drop
(at relevant flow)
Pump according to relevant manufacturer's pump curve
Connection
Image 1
Shut off valves are installed to facilitate servicing.
Laddomat 11 should be placed low to avoid keeping the valve hot.
Image 2
The installation position does not affect the function of the valve.
The lines must be connected to the correct port on the valve.
Starting the Pump
(see image 3-6)
Speed 1 should not be used because the pump has a low
starting torque at this speed, which can lead to the pump
not being able to start.
Image 3
Pump start alternative
On, for example, pellet burners the pump can be
started and stopped at the same time as the burner.
Image 4
Image 5
Image 6
®
Laddomat
Mixing valves for solid fuel boilers
3
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