HEAT SWITCH (rotary action)

OFF - both windshield heaters off WARM UP - both windshields heated in series with power from 115 VAC left bus

• if preset threshold temperature is not reached in 5 min, WSHLD CTRL caution light comes on

NORM - pilot’s windshield heated with power from 115 VAC left bus

• copilot’s windshield heated with power from 115 VAC right bus
• if preset threshold temperature is not reached in 5 min, WSHLD CTRL caution light comes on
• windshield temperature controlled by separate Anti-Ice Controllers (AIC) using an overheat sensor
• if windshield temperature is too hot, WSHLD HOT caution light comes on

PLT SIDE WDO/HT SWITCH (two-position toggle)

OFF - pilot’s side window heater off ON - pilot’s side window heated with power from 115 VAC right bus

• only the forward part of the pilot’s side window is heated
• pilot’s side window temperature controlled by right AIC using overheat sensor
• overheat relay opens if side window temperature is too hot and SIDE WDO HOT caution light comes on

WIPER SWITCH (rotary action with spring-loaded position)

OFF - both windshield wipers stop at their existing position LOW - both windshield wipers operate at slow speed from two independent wiper motors HIGH - both windshield wipers operate at high speed PARK - (spring-loaded position)

• both windshield wipers automatically stop at the lower outboard park positions

Parking both blades in the upwards position will reduce wind noise in flight.

The ALTERNATE PILOT WIPER pushbutton, located on the pilot’s side panel, provides backup the capability of activating the pilot’s side windshield wiper.