A/C System - Operation With Mechanical Controls
83ford14 Article No. 83-12-2AIR CONDITIONING - SYSTEM OPERATION WITH MECHANICAL CONTROLS
FORD 1984 TEMPO WITH MANUAL A/C-HEATER SYSTEM
LINCOLN-MERCURY 1984 TOPAZ WITH MANUAL A/C-HEATER SYSTEM
The subject vehicles are equipped with a new mechanical A/C system control similar to the 1983 Ranger. Since operation of the mechanical control is different from vacuum control operation, it is important that the customer understand the proper operating procedures to obtain satisfactory system performance. It is recommended that each purchaser of the subject new vehicles be instructed about the proper A/C system operation before or at vehicle delivery.
Figure 2:
The temperature control lever is used to select the correct temperature of the air being discharged from the floor or dash vents (Figure 2). It can be placed in any one of the several positions and is held in place by position detents.
The function selection lever manually controls the air inlet door position to vary the amount and direction of the inlet air. It allows air to be discharged on the floor, from the dash panel registers, or up to the windshield for defrost. It also allows a combination of air discharge by placing the lever between the detent points. Compressor operation is not controlled by the function selection lever, but by a separate control. However, compressor operation is automatic in the mix and defrost position to remove moisture from the air for better defogging performance. In ambient temperatures below approximately 50~, the compressor will not run.
The customer should be instructed to use defrost when starting in cold weather until the air becomes warm to prevent drafts from the floor outlets.
The A/C push button switch controls compressor operation when manually depressed. When normal A/C operation is required, the functional selection lever should be in the panel position with the push button switch pushed in. The blower switch must be in one of the on positions to keep the push button switch engaged. The push button switch will disengage if the blower
switch is moved to the off position. A blue light in the A/C push button will light to indicate when the A/C push button switch is engaged. If vent air only is desired, the selector lever should be in the panel floor position and the push button switch disengaged.
The inlet selector lever controls the source of air entering the A/C system. In the "outside" position, air enters the system from the outside air vents. In "recirc", interior air is recirculated through the system. For maximum air conditioning efficiency, the "recirc" position should be used. However, if the "recirc" position is used without the A/C compressor running (A/C push button depressed), there may be a humidity build-up inside the vehicle and may result in interior glass fogging. Outside air is recommended to prevent this concern.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: "INFORMATION ONLY