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Unit Description
5-6
Engine Oil Dipstick:
Use the engine oil dipstick to check the engine oil level.
Receiver Tank Sight Glass:
The receiver tank sight glass is used to assist in checking the amount of refrigerant in the system.
Compressor Oil Sight Glass:
The compressor oil sight glass is used to check the relative level of compressor oil in the
compressor sump.
UNIT PROTECTION DEVICES
High Pressure Cutout Switch (HPCO):
This normally closed switch monitors the discharge pressure at the compressor. It
opens on high discharge pressure to shut the unit down to prevent damage.
Low Pressure Cutout Switch (LPCO):
This normally closed switch monitors the suction pressure at the compressor. It
opens on low suction pressure to shut the unit down to prevent damage.
Suction Pressure Regulator (SPR):
This component is a mechanical control device used to limit the suction pressure to
the compressor. The valve controls suction pressure based on the actual system pressure.
Electronic Throttling Valve (ETV): (T-1200R, T-1200R SPECTRUM):
This component is an electromechanical control device used to limit the suction pressure to the compressor. The valve is
controlled by the microprocessor controller.
Engine Oil Pressure Switch/Sensor:
The engine oil pressure switch/sensor is located on the filter head above the bypass
oil filter. Engine oil pressure should rise immediately on starting. If engine oil pressure drops below 10 ± 2 psig (69 ± 14 kPa),
the switch/sensor signals the microprocessor to stop the engine.
Preheat Buzzer:
The preheat buzzer sounds when the CYCLE-SENTRY
TM
system energizes the glow plugs. This should warn
anyone near the unit that the CYCLE-SENTRY
TM
system is about to start the diesel engine.
Coolant Temperature Sensor (UT-Series and T-500R/T-Dairy)):
This sensor provides an engine coolant temperature
input to the microprocessor. If the engine coolant temperature is too high, the controller stops the unit and records an alarm.
Battery Fuse (UT-Series):
The battery fuse is a 60 amp fuse that protects the 2 circuit. It is located in a fuse holder in the 2
wire near the battery.
Low Oil Level Sensor:
The low oil level sensor detects if the oil drops below a certain level. If it stays below that level for a
specified time, the microprocessor will shut the unit down and record alarm code 66 (normal code when changing oil).
Compressor Temperature Sensor (UT-Series):
This sensor provides a compressor temperature input to the
microprocessor. If the compressor temperature is too high, the controller stops the unit and records an alarm.
Electric Motor Overload Relay (Model 50):
The overload relay protects the electric standby motor. The overload relay
opens the circuit from the contactor to the electric motor if the motor overloads for any reason and an alarm will occur. The relay
resets when the alarm code is cleared.
Fuses:
Sizes and functions are described in the Specifications section of this manual.
T500R runs 3 electric evap fans. Independantly
fused.
CAUTION: Do not add Green or Blue-Green coolants to cooling systems that use Red Extended Life Coolants.
Summary of Contents for T-1000R
Page 14: ...Safety Precautions 2 6 Warning Decals 2e24151g0 ...
Page 34: ...Maintenance Inspection Schedule 4 10 ...
Page 57: ...Unit Description 5 23 Purge Mode UT Series 1 3 4 5 2 ...
Page 67: ...Unit Description 5 33 Zone 1 Cool and Zone 2 Cool UT SPECTRUM Units ...
Page 69: ...Unit Description 5 35 Purge Mode UT SPECTRUM Units ...
Page 71: ...Unit Description 5 37 Zone 1 Cool and Zone 2 Heat UT SPECTRUM Units ...
Page 72: ...Unit Description 5 38 ...
Page 74: ...Diesel Electric Menu 6 28 Adjust Brightness 6 29 Time 6 30 ...
Page 120: ...Operating Instructions Standard HMI 7 18 ...
Page 152: ...Engine Maintenance 9 14 T Series Fuel and Oil System Components TK 376 ...
Page 154: ...Engine Maintenance 9 16 T Series Fuel and Oil System Components TK 270 ...
Page 156: ...Engine Maintenance 9 18 UT Series Fuel System Components AMA768 ...
Page 172: ...Engine Maintenance 9 34 T Series Engine Mounting Components for 2 Cylinder Engine ...
Page 184: ...Engine Maintenance 9 46 ...
Page 238: ...Refrigeration Maintenance 10 54 ...
Page 246: ...Clutch Maintenance 11 8 ...
Page 258: ...Structural Maintenance 12 12 ...
Page 264: ...Mechanical Diagnosis 13 6 ...
Page 265: ...14 Electric Standby Diagnosis ...
Page 268: ...Electric Standby Diagnosis 14 4 ...
Page 269: ...15 Refrigeration System Diagnosis ...
Page 272: ...Refrigeration System Diagnosis 15 4 ...
Page 280: ...Remote Evaporators 16 8 ...