Description; General Description; Refrigeration Unit -- Front Section; Fresh Air Makeup Vent - Carrier 69NT40--541--200 TO 299 Operation And Service

2.1 GENERAL DESCRIPTION

2.1.1 Refrigeration Unit - - Front Section
The unit is designed so that the majority of the
components are accessible from the front, see
Figure 2-1. The upper access panels allow entry into the
evaporator section, and the center access panel allows
access to the thermostatic expansion valve and
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1. Access Panel (Evap. Fan #1)
2. Access Panel (Heater & Thermostatic
Expansion Valve)
3. Fork Lift Pockets
4. Control Box
5. Compressor
6. Unit Serial Number, Model Number and
Parts Identification Number (PID) Plate
7. Condenser Fan
8. TransFRESH Communications Connector
SECTION 2

DESCRIPTION

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5
Figure 2-1 Refrigeration Unit - - Front Section
2-1
evaporator coil heaters. The unit model number, serial
number and parts identification number can be found on
the serial plate to the left of the compressor.

2.1.2 Fresh Air Makeup Vent

The function of the upper or lower makeup air vent is to
provide ventilation for commodities that require fresh air
circulation.
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9. Interrogator Connector (Front right)
10. Temperature Recorder
11. Lower Fresh Air Makeup Vent Location
(Blank Cover Shown)
12. TIR (Transports Internationaux Routiers)
Sealing Provisions - Typical All Panels
13. Upper Fresh Air Makeup Vent
14. Access Panel (Evap. Fan #2)
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T-317