1-2
T-292
1.3.11 Condenser Coil
The unit may be fitted with a 5 row coil using nominal 3/8
inch tubing, or the unit may be fitted with a 4 row coil
using 7mm tubing. The required refrigerant charge is
different for each coil.
1.3.12 Autotransformer
An autotransformer may be provided to allow operation
on 190/230, 3phase, 50/60 hertz power. The
autotransformer raises the supply voltage to the
nominal 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 fitted with an autotransformer and
communications module, the autotransformer will be
fitted with a transformer bridge unit (TBU) to assist in
communications.
1.3.13 Temperature Recorder
One of three temperature recording devices may be
fitted to the unit. The devices include a mechanical
recorder manufactured by Partlow Corporation, a
mechanical recorder manufactured by Saginomiya
Corporation, and an electronic recorder manufactured
by Partlow Corporation.
1.3.14 Gutters
Rain gutters may be fitted over the control box and
recorder sections to divert rain away form the controls.
The different gutters include standard length bolted
gutters, extended length gutters and riveted gutters.
1.3.15 Handles
The unit may be fitted with handles to facilitate access to
stacked containers. These handles may included fixed
handles (located at the sides of the unit) and/or a hinged
handle at the center (attached to the condenser coil
cover).
1.3.16 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.
1.3.17 Water Cooling
The refrigeration system may be fitted with a water
cooled condenser. The condenser is constructed using
copper--nickel tube for sea water applications. The
water cooled condenser is in series with the air cooled
condenser replaces the standard unit receiver. When
operating on the water cooled condenser, the
condenser fan is deactivated by either a water pressure
switch or condenser fan switch.
1.3.18 Back Panels
Back panel designs that may be fitted include panels of
aluminum and stainless steel. Panels may be fitted with
access doors and/or hinge mounting.
1.3.19 460 Volt Cable
Various power cable and plug designs are available for
the main 460 volt supply. The plug options tailor the
cables to each customers requirements.
1.3.20 230 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 each
customers requirements.
1.3.21 Cable Restraint
Various designs are available for storage of the power
cables. These options are variations of the compressor
section front cover.
1.3.22 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.
1.3.23 Lower Air (Fresh Air Make Up)
The unit may be fitted with a lower fresh air makeup
assembly. The assembly may also be fitted with
screens.
1.3.24 Controlled Atmosphere
The unit may be fitted with the TransFRESH option.
For information on the TransFRESH system, contact
TransFRESH Corporation, P.O. Box 1788, Salinas CA
93902
1.3.25 Power Correction
The unit may be fitted with a set of power factor
correction capacitors to assist in correction of
imbalance in current draw by the compressor.
1.3.26 Evaporator
The unit is fitted with an evaporator coil and a hermetic
thermal expansion valve.
1.3.27 Evaporator Fan Operation
The units are fitted with Normal Evaporator Fan
Operation, opening of an evaporator fan internal
protector will shut down the unit.
1.3.28 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.
1.3.29 Emergency Bypass
The unit may be equipped with switches to allow
emergency
bypass
of
the
controller.
The
EMERGENCY BYPASS switch functions to bypass
the controller in the event of controller failure. The
EMERGENCY DEFROST switch functions to bypass
all controls and place the unit in the defrost mode.
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