1
−
2
T-318
1.4.5 Remote Monitoring
The unit may be fitted with a remote monitoring
receptacle. This item allows connection of remote
indicators for COOL, DEFROST and IN RANGE.
Unless otherwise indicated, the receptacle is mounted
at the control box location.
1.4.6 Quest
−
CCPC
Compressor
−
Cycle Perishable Cooling (CCPC) is a
method of temperature control used during
steady
−
state perishable cooling that cycles the
compressor on and off according to supply / return air
temperature conditions.
1.4.7 Communications Interface Module
The unit may be fitted with a communications interface
module. The communications interface module is a
slave module which allows communication with a
master central monitoring station. The module will
respond to communication and return information over
the main power line. Refer to the ship master system
technical manual for further information.
1.4.8 Autotransformer
An autotransformer may be provided to allow operation
on 190/230, 3
−
phase, 50/60 hertz power. The
autotransformer raises the supply voltage to the
nominal 380/460 volt power required by the base unit.
The autotransformer may also be fitted with an
individual circuit breaker for the 230 volt power.
If the unit is equipped with an autotransformer and
communications module, the autotransformer will be
fitted with a transformer bridge unit (TBU) to assist in
communications.
1.4.9 Temperature Recorder
The unit may be fitted with an electronic temperature
recording device.
1.4.10 Gutters
Rain gutters may be fitted over the control box and
recorder section to divert rain away form the controls.
The different gutters include standard length bolted
gutters, extended length gutters, and riveted gutters.
1.4.11 Handles
The unit may be equipped with handles to facilitate
access to stacked containers. These handles may
include fixed handles (located at the sides of the unit)
and/or a hinged handle at the center (attached to the
condenser coil cover).
1.4.12 Thermometer Port
The unit may be fitted with ports in the front of the frame
for insertion of a thermometer to measure supply and/or
return air temperature. If fitted, the port(s) will require a
cap and chain.
1.4.13 Water Cooling
The refrigeration system may be fitted with a
water-cooled condenser. The condenser is constructed
using copper-nickel tube for seawater applications. The
water-cooled condenser is in series with the air-cooled
condenser and replaces the standard unit receiver.
When operating on the water-cooled condenser, the
condenser fan can be deactivated by either a water
pressure switch or condenser fan switch. Depending on
the unit’s configuration and the compressor discharge
temperature, the condenser fan may also be activated
during water-cooled condenser operation.
1.4.14 Back Panels
Back panel designs that may be fitted include panels of
aluminum and stainless steel. Panels may have access
doors and/or hinge mounting.
1.4.15 460 Volt Cable
Various power cable and plug designs are available for
the main 460 volt supply. The plug options tailor the
cables to customer requirements.
1.4.16 230 Volt Cable
Units equipped with an autotransformer require an
additional power cable for connection to the 230 volt
source. Various power cable and plug designs are
available. The plug options tailor the cables to customer
requirements.
1.4.17 Cable Restraint
Various designs are available for storage of the power
cables. These options are variations of the compressor
section front cover.
1.4.18 Upper Air (Fresh Air Make Up)
The unit may be fitted with an upper fresh air makeup
assembly. The fresh air makeup assembly is available
with a vent positioning sensor (VPS) and may also be
fitted with screens.
1.4.19 Lower Air (Fresh Air Make Up)
The unit may be fitted with a lower fresh air makeup
assembly. The fresh air makeup assembly is available
with a vent positioning sensor (VPS) and may also be
fitted with screens.
1.4.20 Labels
Operating instruction and function code listing labels will
differ depending on the options installed. For example,
additional operating instructions are required to
describe start-up of a unit equipped with an
autotransformer. Where the labels are available with
additional languages, they are listed in the parts list.
