Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...
The compact electric hydraulic actuator (EHA) from Parker Hannifin’s Oildyne Div., New Hope, Minn. (www.parker.com), combines all the traditional components of an electrohydraulic linear actuator in a ...