Carrier 40 - Description; Introduction to Unit Components

1-1
62-10630
SECTION 1
DESCRIPTION
1.1 INTRODUCTION
W ARNING
Beware of unannounced starting of the
unit.Theunitmaycyclethefansandoperat-
ingcompressor unexpectedlyascontrol re-
quirements dictate.
This manual contains Operating Data, Electrical Data
and Service Instructions for the Carrier Transicold
Model 40S and 50S truck refrigeration units listed in
Table 1-1.
The unit (Figure 1-1) is of the split system type with the
condenser mounted outside the truck body, evaporator
mounted in the body, and a CAB COMMAND control
center mounted in the drivers compartment. Two types
of compressor drive are available:
D
DD
D Road operation
the compressor is driven by the engine of the vehicle
when in operation over-the-road.
D
DD
D Road/Standby version
With the standby option a second compressor is
mounted in the condenser section. This compressor
is driven by 230 volt, single or three phase power.
The model/serial nameplate is located inside of the unit
on the frame as shown in Figure 1-1.
The condenser section (see Figure 1-2 & Figure 1-3)
contains the condenser fan & coil, filter--drier , oil
separator, condenser pressure control valve, hot gas
valve and microprocessor. On road/standby units the
condenser also houses the standby compressor,
control box and rectifier/transformer assembly. In
addition, single phase units are fitted with a start box
which contains the capacitors and relay.
The evaporator assembly consists of the evaporator
fans (3 each = 50S, see Figure 1-5; 2 each = 40S, see
Figure 1-6), evaporator coil, expansion valve, defrost
termination thermostat, compressor pressure
regulating valve, heat exchanger , low pressure switch
and quench valve.
Thecontrolsystemisamicroprocessorcontroller.Once
the controller is set at the desired temperature, the
systemautomaticallyselectscoolingandheatingcycles
as necessary to maintain the desired temperature with
in very close limits.
Table 1-1 Model Chart
R-404A
R
o
a
d
Condenser Weight
Model
LB KG
R
oa
d
Compressor
Standby Compressor
Road
Road and
Standby
Evaporator Weight
40S 6 2.7 TM 16 06VM306 (3 & 1 phase)
1
9
2
l
b
3
2
0
l
b
64 lb (29kg)
50S 6.5 2.9 TM 16
06VM307 (3 phase)
06VM306 (1 phase)
192 lb
(87 kg)
320 lb
(145 kg)
86 lb (39 kg)
NAMEPLATE
CAB COMMAND
EMERGENCY
SWIT CH
Figure 1-1 Integra 50S