1-1
SECTION 1
DESCRIPTION
1.1 INTRODUCTION
This manual contains Operating Data, Electrical
Data and Service Instructions for the refrigeration units
listed in Table 1-1. Also Table 1-1 charts some significant
differences between these models.
The unit, of lightweight aluminum frame
construction, is an all electric, one piece self-contained
cooling and heating refrigeration unit. The unit is
designed to fit in the front of a container and to serve as
the container front wall. Fork lift pockets are provided
for installation and removal of the unit.
The unit is complete with a charge of R-12,
compressor lubricating oil, mode indicating lights,
temperature controller and is ready for operation upon
installation.
Some units are dual voltage units designed to
operate on 190/230 or 380/460 volts ac, 3 phase, 50-60
hertz power. (Refer to section 1.5.) Other units are
designed to operate on 380/460 volts ac, 3 phase 50/60
hertz power.
Operating control power is provided by a single
phase transformer which steps down the ac supply power
source to 24 volts ac, 1 phase control power.
The temperature controller is a microprocessor solid
state controller. Refer to section 1.13. Once the
temperature controller is set at a desired container
temperature, the unit will operate automatically to
maintain the desired temperature within very close
limits. The control system automatically selects cooling,
holding or heating as necessary to maintain the desired
temperature within the container.
WARNING
Beware of unannounced starting of the
evaporator and condenser fans. Do not open the
condenser fan grille before turning power OFF
and disconnecting power plug.
Some units are equipped with a Carrier Transicold
DataCORDER (Microprocessor recorder). Detailed
information on the DataCORDER will be found in
section 1.13.7. Some units are equipped with a Partlow
temperature recorder or a Saginomiya battery driven
recorder.
Later models have added features to make it easy to
convert to R-22. For example a low side pressure relief
valve and high side pressure relief valve opens at a higher
setting. Refer to Table 1-1 and electrical schematic to see
which models are easily converted to R-22. The electrical
schematic has an R-22 option for CDV, CHT, ILC, UV &
UVT these parts can be added to convert the unit to R-22.
Some units may have a TransFRESH controlled
atmosphere system added. Contact TransFRESH
Corporation, P.O. Box 1788, Salinas, CA 93902 for
information on their system.
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