Pumps can only be included in the supply sub-loops of plant and condenser loops. EnergyPlus requires that the pump must be the first component in the sub-loop. Consequently, a pump must be connected directly to the sub-loop inlet node. Only one pump can be added to each plant/condenser supply sub-loop and so the tool will only appear on the toolbar at the plant/condenser sub-loop level if you delete the existing pump in order to change its orientation.
To place a pump, click on the Add pump tool and click the mouse button when the pump is at the required location. After clicking the mouse button, you can then rotate the pump by moving the mouse in a circular direction around the centre of the pump to obtain the required orientation:
