In an air conditioner for a vehicle having an engine that is temporarily stopped when an engine power is unnecessary, when an engine operation request signal from the air conditioner is output, the engine is operated to drive a compressor so that pleasant performance of a passenger compartment can be obtained. The actuation device includes a contact trip assembly operatively connected to the movable portion of the nose assembly. The titanium target and backing plate are solid phase diffusion bonded. The arresting portion, in use, arrests horizontal sliding motion of the pallet relative to the support portion. On-chip transformers can be used to reduce the voltage level of signals in the filters to improve the linearity of the duplexer. 4 of a saturated aliphatic alcohol having 8-24 carbon atoms.