Actuator for air conditioning system

An air conditioner assembly of the type comprising:

• an air flow housing;
• an air flow valve rotatably mounted in said housing;
• an actuator mounted on said housing including a driven rod, connector means for connecting said rod to said valve including first and second complementary connector parts on said valve and said rod respectively, said second connector part being connectable with said first connector part by rotation of said actuator about the axis of said rod from a first orientation to a second orientation, the improvement comprising a first bayonet coupling means on said housing and a second bayonet coupling means on said actuator for coupling said actuator to said housing, said first and second bayonet coupling means being complementary to each other and being operatively associated with each other when said first and second connecting parts are in engagement when said actuator is in said first orientation whereby said actuator may be mounted on said housing and said connector parts may be connected by rotation of said actuator from said first orientation to said second orientation, and said first and second bayonet coupling means being misaligned in said first orientation and operatively aligned in an intermediate orientation between said first and second orientation whereby rotation of said actuator from said first orientation to said intermediate orientation provides a preliminary coupling between said first and second connector parts and rotation between said intermediate orientation to said second orientation provides a coupling between said first and second bayonet coupling means and completes the coupling between said first and connector parts.