Name: Thermo King SPECTRUM SL
Brand: Thermo King
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Electrical Maintenance 8-18

RELAY BOARD

Typical Relay Board – µP-VI Controller

1. K1: Fuel Solenoid Pull-in Relay

2. K2: High Speed Relay

3. K3: Damper Relay

4. K4: Preheat Relay

5. K5: Starter Relay

6. K7: Run Relay

Typical Relay Board – Multi-Temp MT µP-IV

1. K2: High Speed Relay

2. K3: Damper Relay Zone 1

3. K4: Preheat Relay

4. K5: Starter Relay

5. K7: Run Relay

6. DFR: Damper/Fan Relay Zone 2

7. FR3: Fan Relay Zone 3

Table of Contents3
Introduction11
About this Manual11
Units Covered11
Other Reference Manuals12
Safety Precautions13
General Practices13
Auto Start/Stop Controls13
SL-400E, SLX, Slxe and Slxi with SMART REEFER 2/3 (SR-2/SR-3) CONTROLLER14
Refrigerant14
General Information14
First Aid14
Refrigerant Oil14
Electrical15
Microprocessor Service15
Welding of Units or Truck Bodies15
High Voltage15
Low Voltage15
Precautions16
First Aid16
Unit Decals16
Specifications19
Engine20
Drive System22
Refrigeration System23
R-404A/R-452A23
Heat and Defrost System24
Controller25
Electrical Control System26
Electrical Components27
Evaporator Fan Motors27
Electric Standby29
Electric Drive Motor29
Standby Power Requirements29
Remote Evaporator Specifications29
Maintenance Inspection Schedule31
All SL and Sle and Spectrum Models Host Unit32
Remote Evaporators: ECT, ELT, EW, SPECTRUM and TLE35
All SLX, Slxe Range and Spectrum Models Host Unit36
SLX, Slxe SPECTRUM39
All Slxi-100, Slxi-200, Slxi-300, Slxi-400, Slxi SPECTRUM Range40
Unit Description45
Single Temperature Systems46
Multi-Temperature Systems46
Unit Features46
Compressors46
Engines46
Controllers46
Service Test Mode (Standard on TG-VI, Μp-IV, Μp-V, Μp-VI, SR-2 and SR-3 Controllers)47
Electric Standby Motors47
Refrigeration Modulation Option47
Discharge Air Modulation Control47
Electronic Throttling Valve47
Data Logging Option (Μp-IV, Μp-V, Μp-VI, SR-2 and SR-3 Controllers)48
Sleep Mode Option (Option on Μp-IV and Μp-V Controllers, Standard on Μp-VI, SR-2 and SR-3 Controllers)48
Tracking Option (Μp-IV, Μp-V, Μp-V, SR-2 and SR-3 Controllers)48
CYCLE-SENTRY (Start/Stop) Control Option48
Economy Mode Control Option49
Optiset™ Option50
Data Acquisition System (DAS) Option50
Remote Control Options (SR-3, SR-2, TG-V, Μp-IV Multi-Temp, Μp-V and Μp-VI Controllers)50
Sequence of Operation50
100, SL-100E, SL-200 and SL-200E (TG-VI Controller)54
Μp-IV or Μp-V Controller)55
(Μp-IV or Μp-V Controller)55
400, Sle-400, Slx/Slxe/Slxi and Slx/Slxe/Slxi Spectrum57
Controller)57
Thermo King SR Basic Operational Sequence Diesel Mode60
Operation60
Thermo King SR Basic Operational Sequence Electric Standby Mode62
Operation62
Multi-Temp SR-2/SR-3 Controller)64
Engine Compartment Components70
Remote Evaporator Unit Description71
Unit Operation72
Defrost72
Operating Modes72
Unit Features72
Protection Devices73
TG-VI, Μp-IV, Μp-V, Μp-VI and SR-2/SR-3 Control Systems73
Spectrum Remote Evaporator Unit73
Serial Number Locations73
Unit Nameplate73
TLE and SPECTRUM Remote Evaporator Nameplate73
Engine Nameplate73
Compressor Nameplate73
Electric Motor Nameplate73
Operating Instructions75
Unit Controls76
Unit Control Panel76
SMART REEFER 2/3 Multi-Temp (SR-2/SR-3 MT) Control System80
HMI Control Panel81
Display82
Control Panel Keys (Single or Multi-Temp SR-2/SR-3)83
Unit Operation (Single or Multi-Temp SR-2/SR-3)84
Manual Pretrip Inspection (before Starting Unit)84
Turning Unit on (Single or Multi-Temp SR-2/SR-3)85
Turning Unit off (Single or Multi-Temp SR-2/SR-3)86
Standard Display87
Operating the Unit in Single Zone Control Mode88
Standard Display Variations89
Alarm Display89
Temperature Watch Display90
Other Unit Controls90
Unit Instruments92
Unit Protection Devices94
Unit Operation94
Visual Pre-Trip Inspection94
Selection of Operating Modes on CYCLE-SENTRY Equipped Units96
Starting Units on Continuous Run, Diesel Operation97
Starting Units on CYCLE-SENTRY, Diesel Operation97
Starting Model 50 Units on Electric Standby Power98
After Start Inspection98
Loading Procedure99
Post Load Procedure100
Post Trip Inspection100
Controller Operation101
Thermoguard Multi-Temp MT Μp-IV and Μp-V Controllers102
Entering Setpoint Temperature103
Selecting CYCLE-SENTRY or Continuous Run Mode (Multi-Temp MT Μp-IV and Μp-V ONLY)103
Initiating Manual Defrost103
Viewing Information (Display) Screens104
Checking the Software Version105
Displaying and Clearing Alarm Codes105
Unit Pre-Trip Test106
Thermoguard TG-VI Controller107
Entering Setpoint Temperature108
Selecting CYCLE-SENTRY or Continuous Run Mode108
Initiating Manual Defrost109
Checking the Software Version109
Displaying and Clearing Alarm Codes109
Viewing Information (Display) Screens109
Unit Self-Check Test110
Multi-Temp Remote Control Panel111
Displaying Operating Data112
Entering Setpoint Temperature112
Thermoguard Μp-VI Controller113
Entering Setpoint Temperature114
Selecting CYCLE-SENTRY or Continuous Run Mode114
Initiating Manual Defrost114
Selecting Economy Mode - Revision 4000 and 4010 Software Only115
Viewing Information (Display) Screens115
Checking the Software Version117
Displaying and Clearing Alarm Codes118
Unit Pre-Trip Test118
Entering a Start of Trip in the Data Logger119
SR-2/SR-3 Controller120
HMI Control Panel120
Changing the Setpoint121
Selecting CYCLE-SENTRY or Continuous Mode121
Initiating a Manual Defrost Cycle121
Terminating a Defrost Cycle121
Viewing Gauge Readings121
Viewing Sensor Readings122
Navigating the Operator Menu122
Alarm Codes for Μp-IV, Multi-Temp Μp-IV, Μp-V, Μp-VI, TG-VI , SR-2 and SR-3 Controllers125
Telematic Status Alerts for TK Bluebox127
Electrical Maintenance129
Alternator (Australian Bosch)130
Charging System Diagnostic Procedures130
Field Current Test133
Alternator Removal134
Alternator Disassembly134
Inspecting and Diagnosing Components136
Alternator Assembly138
Alternator Installation140
Alternator (Thermo King)141
Alternator Removal143
Battery143
Unit Wiring144
12 VDC CHARGING SYSTEM144
Fuse Link144
Fuses145
Fuses (Units with TG-VI, MT Μp-IV, Μp-V, Μp-VI, SR-2 or SR-3)145
Relay Board146
TG-VI, MT Μp-IV, Μp-V, Μp-VI, SR-2 or SR-3 Controller147
Air Heater148
Low Oil Level Switch149
Switch Test149
Switch Removal and Installation149
Bench Test149
High Water Temperature Switch150
Switch Test150
Condenser and Evaporator Fan Rotation (Electric Standby Operation)150
Evaporator Heaters151
SL, SLE, SLX, Slxe, Slxi151
AC Components (Model 50 Units)151
Electrical Contacts151
Overload Relay151
Phase Indicator151
Phase Correction Option152
Diagnosing the Phase Correction System152
Defrost System154
Defrost Cycle154
Defrost Cycle Checkout Procedure154
Defrost Components155
Engine Maintenance157
Engine Lubrication System158
Engine Oil Change158
Oil Filter Change158
Crankcase Breather158
TK 482, TK 486, TK 486V Engines158
Engine Air Cleaner159
Dry Type159
Cyclonic Air Cleaner161
Engine Cooling System162
Antifreeze Maintenance Procedure162
ELC (Extended Life Coolant)165
Checking the Antifreeze166
Changing the Antifreeze166
Bleeding Air from the Cooling System166
Engine Thermostat167
Engine Fuel System168
TK 482, TK 486 and TK 486V169
Maintenance170
Bleeding the Fuel System170
Water in the Fuel System171
Single Element Fuel Filter/Water Separator Replacement172
TK 482, TK 486 and TK 486V Engines173
Integral Fuel Solenoid - TK 482, TK 486 and TK 486V173
Diagnosing the Integral Fuel Solenoid System174
Fuel Solenoid Replacement178
Injection Pump Service and Timing178
Injection Pump Installation & Timing178
TK 482, TK 486 and TK 486V Engines180
TK 482, TK 486 and TK 486V Engines185
Belt Tension Adjustment and Belt Replacement187
SL Belt Adjustments188
Sle, SLX, Slxe, Slxi and Spectrum Belt Adjustments192
Blower Belts - Upper and Lower Poly-V Groove Belt Replacement on SL Units and Upper Belt Only on SLX, Slxe, Slxi193
SLX, Slxe, Slxi Belt Replacement195
SLX, Slxe Upper Belt Replacement196
Slxe (from October 2016) and Slxi Upper Belt Replacement198
Compressor Drive Belt Replacement and Adjustment (Model 50)201
Lower (Engine to Electric Motor or Cross Shaft) Belt (SLX ONLY)203
SLX Retrofit Clutch Tensioner204
Clutch Drive Tensioning Schematic Slxe and Slxi206
Clutch Maintenance209
SL and Sle Models211
10 Refrigeration Maintenance213
Service Tools214
Leak Detection214
Compressor Oil214
Vacuum Pumps214
Gauge Manifold Sets214
System Clean-Up214
Refrigerant Recovery214
Refrigeration Maintenance Procedures215
Additional Information Low Side Pump down for TCI and SPECTRUM Models215
Compressor Oil Acid Test216
Checking Compressor Oil216
Refrigerant Charge217
Checking Refrigerant Charge with an Empty Trailer217
Checking Refrigerant Charge with a Loaded Trailer217
Refrigerant Overcharge Check218
Moisture Indicating Sight Glass (Where Fitted)219
Moisture Indicating Sight Glass219
SLX, Slxe, Slxi Spectrum Charging Procedures220
Micro-Channel Condenser and Auxiliary Receiver Design220
Charging Procedure for SLX SPECTRUM Categories220
SLX, Slxe, Slxi SPECTRUM Charging Procedure221
Refrigerant Leaks222
Evacuating and Charging Smart Reefer Multi-Temp Systems222
Set-Up Unit222
System Evacuation222
Evacuation Is Important and Critical to System Performance222
Set-Up and Test Evacuation Equipment225
Unit Evacuation227
Unit Charging228
Remove Evacuation Hoses230
High Pressure Cutout230
Head Pressure Control Switch (SL TCI and SL Spectrum)230
Three-Way Valve Condenser Pressure Bypass Check Valve230
Modulation Valve231
Electronic Throttling Valve (ETV)232
Hot Gas Bypass Valve232
Spectrum Multi-Temperature Refrigeration Components233
Host Unit Components233
Zone Refrigeration Control Components233
Refrigeration Service Operations235
Refrigeration System Components236
Low Side Pump down236
Compressor236
High Pressure Cutout Switch or High Pressure Cycle (Control) Switch237
Condenser Coil238
Discharge Vibrasorber238
Suction Vibrasorber238
Receiver Tank240
Bypass Check Valve240
High Pressure Relief Valve241
Dehydrator (Filter-Drier)241
Expansion Valve Assembly241
Evaporator Coil242
Heat Exchanger243
Accumulator243
Pilot Solenoid244
Modulation Valve (SL and SLE Only)244
Hot Gas Bypass Solenoid Valve244
Modulation Valve244
Throttling Valve (Non-ETV Units)245
Three-Way Valve Condenser Pressure Bypass Check Valve Repair248
Three-Way Valve Repair249
External Compressor Oil Filter - X214, X426 or X430 Compressor251
Electronic Throttling Valve (ETV)252
Multi-Temperature System Components256
Discharge Pressure Sensor256
Liquid Line Solenoid Valve (LLS, LLS2, LLS3, RLLS or CLLS) or Suction Line Solenoid Valve (SLS, SLS2, SLS3, RSLS or CSLS)256
Condenser Inlet Solenoid Valve (CIS) or Hot Gas Solenoid Valve (HGS, HGS2, HGS3, RHGS, HGBP or CHGS)257
Suction Line Check Valve (SLCV, SLCV2, SLCV3, RSLCV or CSLCV), Purge Check Valve (PCV) or Liquid Return Check Valve (LRCV, LRCV2, LRCV3, RLRCV or CLRCV)257
Condenser Inlet Solenoid Valve (CIS) or Hot Gas Solenoid Valve (HGS, HGS2, HGS3257
Receiver Tank Pressure Solenoid Valve (RTPS)258
Purge Valve (PV)258
12 Structural Maintenance259
Unit and Engine Mounting Bolts260
Unit Inspection261
Defrost Drains261
Condenser, Evaporator and Radiator Coils261
Micro-Channel Coil Cleaning Recommendations261
Unit Installation263
SL and Sle Top Center Nut264
Access to Mounting Holes SLX, Slxe, Slxi265
Access to Mounting Holes Slx/Slxe/Slxi265
Defrost Damper266
Damper Door Motor with Current Sensing Blade Position Control280
And Late Model SL Units)280
Damper Door Motor with Current Sensing Blade Position Control (Slxi, Slxe, SLX, Sle and Late Model SL Units)280
Fan Shaft Assembly285
SL and Sle285
SL and Sle294
Slxi, Slxe, SLX Fan Shaft Assembly299
Lower Blower Assembly Slxi, Slxe, SLX300
Jackshaft/ Cross Shaft Assembly301
Sle and SPECTRUM303
Slxi, Slxe, SLX Cross Shaft Assembly307
Remote Evaporator Unit308
Unit Inspection308
Defrost Drains308
Evaporator Coil308
13 Mechanical Diagnosis309
TK 482, TK 486 and TK 486V Engines310
Refrigeration System Diagnosis317
All Models Except TCI and SPECTRUM318
TCI and SPECTRUM Models320
Remote Evaporator System Diagnosis321
Single Temperature Refrigeration System Diagrams323
Sl/Sle 100, 200 and SLX, Slxe, Slxi 100, 200 WITHOUT MODULATION324
Cooling Cycle324
Heat and Defrost Cycles325
Sle 200 and 300326
Cooling Cycle with Modulation326
Heat and Defrost Cycles with Modulation327
SL-400 and SL-400E328
Cooling Cycle with Modulation328
Heat and Defrost Cycles with Modulation329
SLX 200 PPP, 300, 400, Slxe 300, 400 and SLXI 300, 400330
Cooling Cycle with Modulation330
Heat and Defrost Cycles with Modulation331
Multi-Temperature Refrigeration System Diagrams333
Sl Tci, or Spectrum334
Zone 1* on Cool and Zone 2** on Cool334
Zone 1* on Cool and Zone 2** on Heat335
Zone 1* on Cool, Zone 2** on Cool and Zone 3*** on Cool336
Zone 1* on Cool, Zone 2** on Cool and Zone 3*** on Heat337
SLX, Slxe, SLXI Spectrum338
Zone 1* on Cool, Zone 2** on Heat338
Wiring Diagrams and Wiring Schematics341

Thermo King SPECTRUM SL User Manual

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Thermo King SPECTRUM SL Specifications

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Brand	Thermo King
Model	SPECTRUM SL
Category	Refrigerator
Language	English