1-8. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS. - continued]
RELAY (39). Controls power to heating elements, item 35, and is activated by logic box assembly, item 37.
RELIEF VALVE (40). This safety valve opens when the refrigerant discharge line pressure rises above 540 psig
RELAY (41). Controls power to compressor, item 27, and is activated by logic box assembly, item 37.
ELECTROMAGNETIC INTERFERENCE FILTER (42). Reduces the radiated and conducted electromagnetic
interference created by the air conditioner electrical components to an acceptable level.
ACTUATING CYLINDER (43). This hydraulic cylinder operates discharge louver assembly. It will start to open the
louver assembly at 150 to 180 psig (10.55 to 12.66 kg/cm2) and fully open louver assembly at 220 to 260 psig
(15.74 to 18.28 kg/cm2) compressor discharge pressure to allow unit operation when outside temperature is low.
DIFFERENCES BETWEEN MODELS.
There are no model differences in effect on the Keco Model F18H-MPI air conditioner.