Econoflame R2700/R2800/R2900 boilers - CMS

5.4.2 Water flow
5.4.2.1 Flow rate and The rate of water flow through the appliance must never fall
resistance below the required minimum (otherwise the water flow switch
will be activated and the appliance will be shut down). The use
of valves, non-return valves, systems in which several appliances
are connected to a common transport system, etc., must
not interfere with the required water circulation.
Type )T 20 K
Pu mp data
Nominal Boiler- Grundfos Pump Head Available Max.*
flow resis- pump speed at head at power conrate
tance type Qnom. Qnom. sumption
3
m/h kPa UPS kPa kPa W
R2700 4,11 13 32-60 F 3 46 33 190
R2701 5,12 20 32-60 F 3 46 26 190
R2702 6,14 29 32-120F 3 80 51 400
R2703 7,69 36 32-120F 3 72 36 400
R2704 9,44 43 32-120F 3 59 16 400
R2705 12,96 29 40-120F 3 58 29 460
R2706 16,26 36 50-120F 3 75 39 720
R2707 19,30 43 50-120F 3 64 21 720
R2708 21,92 32 50-120F 3 55 23 720
R2709 25,91 39 65-120F 3 82 43 1150
R2800 4,02 12 32-60 F 3 46 34 190
R2801 5,12 20 32-60 F 3 44 24 185
R2802 6,41 25 32-120F 3 79 54 400
R2803 7,87 30 32-120F 3 73 43 400
R2804 10,80 20 40-120F 3 70 50 460
R2805 13,55 25 40-120F 3 55 30 460
R2806 16,08 30 50-120F 3 76 46 720
R2807 18,27 22 50-120F 3 70 48 720
R2808 21,59 27 50-120F 3 59 32 720
R2809 23,78 32 65-120F 3 83 51 1150
R2900 4,02 12 32-60 F 3 46 34 190
R2901 5,12 20 32-60 F 3 44 24 185
R2902 6,41 25 32-120F 3 79 54 400
R2903 7,87 30 32-120F 3 73 43 400
R2904 10,80 20 40-120F 3 70 50 460
R2905 13,55 25 40-120F 3 55 30 460
R2906 16,08 30 50-120F 3 76 46 720
R2907 18,27 22 50-120F 3 70 48 720
R2908 21,59 27 50-120F 3 59 32 720
R2909 23,78 32 65-120F 3 83 51 1150
Table 12 Water flow rate and pump data
* The maximum power consumption of the pump is given for pump speed
3. The optimum operating point in relation to efficiency and minimum
power consumption can be determined from the related pump curve.
2789CV02C 37