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2–1
T-319
SECTION 2
DESCRIPTION
INTRODUCTION
This technical supplement contains information specific to the 69NT40-541-304 and 69NT40-541-345 dual tem-
perature system. It is to be used in conjunction with the Service Parts List and the Operation and Service Manual
for 69NT40-541-300 to 399 series units. The information in this manual is designed to supplement both the Service
Parts List and the Operation and Service Manual.
The Carrier Transicold model 69NT40-541-304 and 69NT40-541-345 dual temperature system combines the stan-
dard ThinLine host evaporator with a dual discharge remote evaporator, which is used for refrigeration in a second
compartment. The remote evaporator is mounted on the ceiling of the rear compartment and connected to the host
unit by refrigerant lines and control wiring. The two compartments are separated by an insulated bulkhead, which
can be moved within a range of 12 feet to accommodate varied load sizes.
CONFIGURATION IDENTIFICATION
Unit identification information is provided on a plate located near the compressor. The plate provides the unit model
number, the unit serial number and the unit parts identification number (PID). The model number identifies the
overall unit configuration, while the PID provides information on specific optional equipment, factory provision to
allow for field installation of optional equipment and differences in detailed parts.
Configuration identification for the models covered herein may be obtained on the Container Products Group Infor-
mation Center by authorized Carrier Transicold Service Centers.
2.1
GENERAL DESCRIPTION
2.1.1
Refrigeration Unit - Front Section
The design of the refrigeration unit allows for access to the majority of components from the front (see
The unit model number, serial number, and parts identification number (PID) can be found on the serial plate to the
left of the compressor.
The dual temperature system utilizes a remote evaporator kit, which contains the components necessary for dual
temperature operation.
This configuration also affects the refrigeration unit, adding refrigerant connections for the remote evaporator, addi-
tional contactors in the electrical kit, a larger receiver, a host evaporator liquid line solenoid valve, and a different
function code label.
Summary of Contents for 69NT40-541-304
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Page 61: ...7 3 T 319 Figure 7 2 Schematic 69NT40 541 304...
Page 62: ...T 319 7 4 Figure 7 3 Unit Wiring Diagram Sheet 1 69NT40 541 304...
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Page 66: ...T 319 7 8 Figure 7 7 Unit Wiring Diagram Sheet 1 69NT40 541 345...
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Page 78: ...T 319 13 1 13 RECEIVER 8 5 17 18 19 20 4 Item 1 4 2 3 6 7 8 6 7 10 9 11 12 13 14 15 16 2...
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Page 84: ...T 319 17 1 17 REMOTE EVAPORATOR FRAME A A A A 4 2 5 6 3 8 9 1 15 11 7 12 10 14 13 2 2 2 9 3 9...
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