Description; General Description; Refrigeration Unit -- Front Section; Upper Fresh Air Makeup Vent - Carrier 69NT40-489-100 Series Operation And Service Manual

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 1.
The upper access panels allow entry into the evaporator
section, and the center access panel allows access to
the thermostatic expansion valve and evaporator coil
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10
9
8
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

DESCRIPTION

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6
Figure 1. Refrigeration Unit - - Front Section
SECTION 2
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 Upper Fresh Air Makeup Vent

The function of the upper makeup air vent is to provide
ventilation for commodities that require fresh air
circulation.
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5
7. Condenser Fan
8. Interrogator Connector (Front)
9. TIR (Transports Internationaux Routiers)
Sealing Provisions - Typical All Panels
10. Upper Fresh Air Makeup Vent
11. Access Panel (Evap. Fan #2)
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2
3
4
T-305