Operating Instructions
32
DC Alt Light:
When this yellow light is On, there
is no current output from the alternator.
On/Off Switch:
This switch supplies power to the
circuits of the unit.
•
On position: This switch energizes the
electrical system for the unit.
•
Off position: This switch de-energizes the
electrical system and the unit will not operate.
NOTE: If the unit is also equipped with an
In-Cab Control Box. All On/Off switches must
be in the On position before the unit will operate.
Preheat/Start Switch:
When held on Preheat, this
switch energizes the glow plugs in the diesel
engine to aid in starting.
When held on Start, this switch energizes both the
glow plugs and the starter which cranks the
engine.
Manual Defrost Switch:
When pushed, the Manual
Defrost switch starts the Defrost cycle. However,
the evaporator coil must be below 42 F (6 C) for
the unit to go into Defrost. A thermal switch on
the evaporator coil senses this temperature.
NOTE: The unit will remain in Defrost mode
until the coil temperature rises to 52 F (11 C).
Run Hourmeter (Optional on Model 50):
The Run
Hourmeter records the total number of hours that
the unit has been in operation.
Engine Hourmeter:
The Engine Hourmeter records
the total number of hours that the diesel engine
has been in operation. This meter can be used to
determine proper maintenance intervals.
Electric Operation Hourmeter (Optional on Model
50):
The Electric Operation Hourmeter records the
total number of hours that the electric motor has
been in operation. This meter can be used to
determine proper maintenance intervals.
Coolant Temperature Gauge (Optional):
The
Coolant Temperature Gauge indicates the
temperature of the coolant in the engine block.
Oil Pressure Gauge (Optional):
The Oil Pressure
gauge shows the engine oil pressure. This
pressure should rise immediately after the engine
starts.
Suction Pressure Gauge (Optional):
The Suction
Pressure gauge indicates the pressure of the
refrigerant gas returning to the compressor.
Ammeter (Optional):
The Ammeter indicates
whether the battery is being charged or
discharged. The amount of discharge shows
whether the glow plugs are functioning properly
during preheat.
ThermoGUARD V Microprocessor
Controller (TG-V)
The programmable TG-V displays temperature
and alarm conditions. It also functions as a
thermostat and a defrost timer for the unit.
The TG-V In-Cab Remote Control Box provides
convenient on-the-road unit control from inside
the truck cab. It includes the following:
Temperature Display:
This digital temperature
display indicates the temperature of the air
returning from the cargo box to the evaporator.
Power Cord Indicator Light (Model 50):
When this
red light is On, the Electric/Diesel switch is in the
Electric Standby position and the truck ignition is
on.
O
FF
Key:
Used to turn off the controller and stop
the engine or standby motor.
O
N
Key:
Used to turn on the condensing unit and
the controller.
NOTE: The main unit On/Off switch must be set
to On before the In-Cab Controller can be
turned On. The unit will automatically start.
Also, the In-Cab Controller must be On before
the main unit can be started.
S
ELECT
Key:
Used to select the various displays
which can appear on the screen.
U
P
Key:
Used to increase setpoint temperature
when the setpoint symbol is on the screen.
D
OWN
Key:
Used to decrease setpoint temperature
when the setpoint symbol is on the screen.
D
EFROST
Key:
Used to start the Defrost cycle of the
evaporator.
E
NTER
Key:
Used to enter new information into the
controller.
WARNING: Do not operate the TG-V
until you are completely familiar with the
meaning of each display symbol, and the
function of each control key.
Summary of Contents for 914970
Page 3: ...3...
Page 10: ...Table of Contents 10...
Page 40: ...Operating Instructions 40...
Page 82: ...Electronic Controls 82...
Page 92: ...Electrical Maintenance 92...
Page 124: ...Refrigeration Maintenance 124...
Page 140: ...Hilliard Clutch Maintenance 140...
Page 160: ...Refrigeration Diagrams 160...
Page 163: ...Index 163 W wiring 85 wiring diagrams 165...
Page 164: ...Index 164...
Page 166: ...Wiring and Schematic Diagrams Index 166...
Page 167: ...167 Cab Control RD Wiring Diagram...
Page 168: ...168 RD w o Thermostat Cab Control Schematic...
Page 169: ...169 RD Cab Box Wiring Diagram...
Page 170: ...170 RD Cab Control w Thermostat Schematic Diagram...
Page 171: ...171 RD 50 STD 3 Phase Wiring Diagram Page 1 of 2...
Page 172: ...172 RD 50 STD 3 Phase Wiring Diagram Page 2 of 2...
Page 173: ...173 RD 50 STD 3 Phase Schematic Diagram Page 1 of 2...
Page 174: ...174 RD 50 STD 3 Phase Schematic Diagram Page 2 of 2...
Page 175: ...175 RD 30 STD Wiring Diagram Page 1 of 2...
Page 176: ...176 RD 30 STD Wiring Diagram Page 2 of 2...
Page 177: ...177 RD 30 STD Schematic Diagram Page 1 of 2...
Page 178: ...178 RD 30 STD Schematic Diagram Page 2 of 2...
Page 179: ...179 RD 30 C S Wiring Diagram Page 1 of 2...
Page 180: ...180 RD 30 C S Wiring Diagram Page 2 of 2...
Page 181: ...181 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 182: ...182 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...
Page 183: ...183 RD 50 C S 3 Phase Wiring Diagram Page 1 of 2...
Page 184: ...184 RD 50 C S 3 Phase Wiring Diagram Page 2 of 2...
Page 185: ...185 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 186: ...186 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...