Boiler Controls Electronic & Part
NRR 2-2e

Flowserve Gestra Level controller
3 position stepping controller with propotional action
Input : 3 connection from level probe NRG 26..
Output : Current output 4- 20 mA
Max.& Min. level alarm relays
Set point : 0 - 100 %
Feedback : 1000 Ohm potentiometer from control valve