Thermo King 098203, Maintenance Manual

Page: 207 / 264

Servicing The Unit
205
Servicing the Fresh Air System
Adjusting the Fresh Air Exchange System
The fresh air exchange system has an adjustable vent door for ventilation. The evaporator fans draw in
outside air through an air intake and discharge an equal amount of container air through an air outlet.
NOTE: Set the disk or door position to the ventilation rate indicated on the shipping manifest.
Disk Adjustment: Low Ventilation Rates
To make a disk adjustment perform the following steps:
1. Loosen wing nut on handle Bracket, Figure 176
2. Rotate the disk to set the Indicator at the air exchange rate shown on the ventilation scale on the door:
• Models:
0-225m3/hr (0-154 ft3/min)
3. Tighten the wing nut.
Handle Adjustment: High Ventilation Rates
To make a handle adjustment, perform the following steps:
1. Loosen wing nut on handle assembly until handle bracket will rotate over handle.
2. Align handle bracket and wing nut over hole in handle assembly and push through handle.
1. Evaporator Fan Blade
2. Airflow Direction
3. Evaporator Coil
4. Evaporator Motor
5. 13 mm (0.5 in.)
Figure 175: Evaporator Fan Blade Placement
BEN042