Do you have a question about the V-200 Series and is the answer not in the manual?
Questions and answers
David
February 27, 2025
The chiller works with engine running but not on stand by 120v ac supply
2 comments:
Mr. Anderson
February 27, 2025
The Thermo King V-200 Series chiller may not work on the standby 120V AC supply due to several possible reasons:
1. Compressor Operation Differences: The system has both an engine-driven compressor and an electric standby compressor. If the electric standby compressor or its motor is faulty, the unit will not operate on standby power.
2. Thermostat Control: The thermostat controls compressor operation by energizing the clutch during engine operation or starting the electric motor on standby. If the thermostat is not functioning correctly or not set properly, the standby operation may not engage.
3. Power Relay and Contactors: The standby mode relies on the power relay and electric relays to energize the fan relay, motor contactor, and electric standby compressor clutch. If these components are faulty or not receiving power, the standby system will not start.
4. Refrigeration System Protection: The system includes high and low-pressure cutout switches. If a pressure switch is triggered, it could prevent the standby compressor from operating.
5. Electrical Supply Issues: If the 120V AC supply is inadequate, unstable, or improperly connected, the electric standby compressor may not receive the necessary power to function.
Checking these components and connections can help diagnose why the unit is not working on standby power.
This answer is automatically generated
stephen thomas
March 17, 2025
@David I have the opposite issue.
Will run and refrigerate while plugged into power source.
When driven will not refrigerate
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If further information is required, Thermo King Corporation should be consulted. Sale of product shown in this manual is subject to Thermo King’s terms and conditions including, but not limited to, the Thermo King Limited Express Warranty. Such terms and conditions are available upon request.
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Keep Polyol Ester compressor oil in tightly sealed containers. If Polyol Ester oil becomes contaminated with moisture or standard oils, dispose of properly—DO NOT USE! WARNING: When servicing Thermo King R-404A and R-134a units, use only those service tools certified for and dedicated to R-404A or R-134a refrigerant and Polyol Ester compressor oils.
Safety Precautions General Practices Refrigerant 1. ALWAYS WEAR GOGGLES OR SAFETY Although fluorocarbon refrigerants are classified GLASSES. Refrigerant liquid, refrigeration as safe refrigerants, certain precautions must be oil, and battery acid can permanently damage observed when handling them or servicing a unit the eyes (see First Aid under Refrigeration in which they are used.
Safety Precautions when working with an operating refrigeration First Aid unit. Lethal voltage potentials can exist on IMMEDIATE action must be initiated after a connections in the high voltage tray of the control person has received an electrical shock. Obtain box.
Specifications GENERAL Compressor TK208R, or SELTEC TM-13XD or SELTEC TM-15XD Compressor Oil Charge 1 Compressor systems 12 oz. (354.8 ml) 2 Compressor systems 24 oz. (709.7 ml) Compressor Oil Type Polyol Ester P/N 203-413 Defrost Method: Hot gas Defrost Timer: Initiation Interval Adjustable, 1 hour to 10 hours Termination Interval...
Specifications ELECTRICAL SYSTEM Fuses Fuse 1: Evaporator Fan Motor (EF1) 12V Units 15 amps, 24V Units 10 amps Fuse 2: Evaporator Fan Motor (EF2) 12V Units 15 amps, 24V Units 10 amps Fuse 3: 2A Circuits 12V Units 25 amps, 24V Units 20 amps Fuse 4: 2R1 Circuit 12V &...
Unit Description Introduction Compressor The Thermo King V-200/V-300 and V-200/V-300 The compressor is mounted on and driven by the MAX truck refrigeration systems are designed for truck engine. Refrigeration hoses or lines are used low and medium temperature applications on vans to connect the condenser, the evaporator, the and small-sized trucks with one compartment.
Unit Description Control Circuits compressor. As the refrigerant passes through the metering orifice it expands and evaporates, The control circuits operate on 12V or 24V DC cooling the suction gas entering the compressor. supplied by the truck batteries for engine This cooling effect is transferred to the discharge operation.
Unit Description Unit Features Protection Features • Condenser • High Pressure Cutout Switch - The High Pressure Cutout Switch is a pressure sensitive • ES200 Max Evaporator (V-200) switch. It is located in the discharge line near • ES300 Max Evaporator (V-300) the oil separator on Model 10 units.
Control Box Fuses P.C. Board All Printed Circuit Boards manufactured by Thermo King can be easily identified by the Part Number stamped on them. Even though that all P.C. Boards have a similar layout, there are some differences from one to another depending on the unit model and which functions they carry out.
Unit Description The Defrost Relay will remain energized until the defrost cycle is terminated by the Defrost Termination Switch or the In-Cab Control Box ON/OFF Switch is pressed. Standby Relays The standby relays CR1, CR2 and ER are located on the P.C. Board in Model 20. AGA1234 Commutation Relays (CR1 and CR2) When the Commutation Relays are energized the...
Unit Description Pilot Solenoid Relay 3 (PS3) The condenser fan is also controlled by the condenser fan pressure switch (CFPS) on R-134a When the Remote Fan Relay 3 is energized, units. This normally open switch monitors the battery voltage energizes the liquid line solenoid compressor discharge pressure.
Unit Description Defrost Serial Number Locations The defrost cycle can be initiated any time the Nameplate located on the front CONDENSER: evaporator coil temperature is below 36 F (2.2 C). inside edge of condenser frame. Defrost is initiated automatically by the defrost Nameplate located on the outside EVAPORATOR: timer, or manually by pressing the manual defrost...
Operating Instructions Description 1. ON-OFF KEY (M-13, and M-16 only) It is used to start/stop the unit. The internal return air temperature will be automatically displayed. 2. ON LED Indicator (M-13, and M-16 only) AJA1772 When on, it indicates that the unit has been Figure 9: M13 &...
Operating Instructions 6. Setpoint Adjust Dial (M-13, M-16, M-17) It is used to adjust the setpoint temperature. 7. Setpoint Key (M-13, M-16, M-17) It is used to display the setpoint temperature. AJA1806 Figure 15: Defrost Key & LED AJA1804 8. Power Cord LED (M-13, and M-16 only) When on, it indicates the unit is plugged to the A.C.
Operating Instructions In-Cab Control Box Operating Instructions (M-13, M-16, M-17) Display Return Air (Box) Temperature During normal operation (unit is ON and cooling), the ON LED Indicator, the Unit Operation LED and Celsius/Fahrenheit LED Indicator should be AJA1808 ON; the return air (box) temperature should be displayed on the screen.
In-Cab 4. Products should be pre-cooled before loading. Control Box on TC units. Thermo King units are designed to maintain loads at the temperature at which they were Electric Standby Operation loaded. Transport refrigeration units are not 1.
Operating Instructions Post Load Procedure 1. Be sure all the doors are closed and locked. 2. Adjust the thermostat(s) to the desired temperature setpoint(s). 3. Start the unit. 4. Half an hour after loading, defrost the unit by momentarily pressing the Manual Defrost switch.
Electrical Maintenance Trouble Shooting In-Cab Control Box M-13 and M-16 Before starting this trouble shooting, verify that the In-Cab Control Box 12/24V selector is placed in the correct position and check the ground circuit through Pin 9 Connector C-9. AJA1775 Figure 19: BLOCK DIAGRAM M-13, M-16 IMPORTANT: This trouble shooting only covers In-Cab Control Box functions and should not be...
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Electrical Maintenance SYMPTOMS REMEDY Defrost cycle is not initiated when the Manual 1st. Box temperature must be higher than Setpoint Defrost Switch is pressed. temperature: unit must be in cool mode. 2nd. Evaporator coil temperature must be lower than 36.0 ± 5.4 F (2.2 ± 3.0 C) (defrost termination switch closed).
Electrical Maintenance Trouble Shooting M-17 In-Cab Control Box (TC Units Only) Before starting this trouble shooting, verify that the In-Cab Control Box 12/24V selector is placed in the correct position and check the ground circuit through Pin 9 Connector C-11. AJA1810 Figure 20: BLOCK DIAGRAM M-17 IMPORTANT: This trouble shooting only covers...
Electrical Maintenance Defrost System The factory setting for the defrost timer is four hours. Use the following information to change A defrost cycle can be started by pressing the the setting of the defrost timer. manual defrost switch or automatically by the defrost timer, when the defrost termination switch is closed and the unit is in cool mode.
Electrical Maintenance Manual Defrost Switch If the unit doesn’t shift to defrost cycle go to step A manual defrost switch is located in the In-Cab control box. Pressing the manual defrost switch 1. Check the evaporator temperature. initiates the defrost cycle if the defrost termination Be sure the evaporator temperature is actually switch is closed and the unit is in cool mode.
Electrical Maintenance Liquid Injection System 3. After approximately one minute, defrost should be initiated. The Defrost LED, defrost (R-404A Units Only) relay, and defrost solenoid valve must be This liquid injection switch is a temperature activated. sensitive switch located on the discharge fitting of the truck engine compressor.
Electrical Maintenance Electric Standby Circuits 2. Measure the transformer output voltage (AC) at the terminal board. Measure the voltage If the unit does not run in the electric standby between wires X1 and X4. The voltage mode use the following procedure. reading should be approximately 12/24V (depending on the unit voltage).
2000 microns to the manifold of an evacuation station. The within 5 minutes, look for a leak in the use of Thermo King Evacuation Station P/N system or in the evacuation and charging 204-725 is recommended.
Refrigeration Maintenance 11. Start the unit on engine operation and run the 22. The above conditions MUST be established truck engine at approximately 1000 rpm. each time the refrigerant level is checked or if refrigerant needs to be added for any reason. 12.
Refrigeration Maintenance Testing the Refrigerant Charge with a 1. Install a compressor on the system having a Loaded Box residual oil supply and self-lubricating system such as a TK 214 model. Connect an oil 1. Install a gauge manifold. separator on the discharge or suction line to 2.
Refrigeration Maintenance High Pressure Cutout Switch 9. Raise the discharge pressure of the compressor by blocking the condenser coil air (HPCO) flow. When the discharge pressure reaches The high pressure cutout switch is located on a 300 psi (2068 kPa) on R-134a units, or 450 psi discharge line inside the condenser unit.
Refrigeration Maintenance Cleanup Procedure for Small Clean-up Procedure Truck Units 1. Make sure all hose routing is correct. 2. Make sure that the oil trap is correctly installed. 3. Recover contaminated refrigerant from system. 4. Remove lines from compressors (engine driven and standby).
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Refrigeration Maintenance Putting the Unit Back Into Operation 1. Replace check valve (or check valve seats). 2. Install new oil separator. 3. Install new liquid injection orifice. 4. Install new drier. 5. Install new expansion valve. 6. Install compressors and lines. 7.
Refrigeration Service Operations NOTE: It is generally good practice to replace 3. Disconnect the clutch wire and the discharge the filter drier whenever the high side is opened and suction lines (and liquid injection hose if or when the low side is opened for an extended necessary).
Refrigeration Service Operations Condenser Coil 3. Install and tighten the ORS nuts. Hold the drier with a back-up wrench on the hex behind the ORS fitting. Removal 4. Pressurize the system and test for leaks. 1. Recover the refrigerant charge. 5.
Refrigeration Service Operations 5. Reinstall the condenser cover. CAUTION: Use a heat sink to prevent 6. Recharge the unit. damaging the valve when soldering. Liquid Injection Metering Installation Orifice 1. Clean the tubes for soldering if necessary. Removal 2. Remove the coil and disassemble the valve if soldering.
Refrigeration Service Operations Testing the Liquid Injection Discharge Check Valve (Model Solenoid Valve and Metering Orifice 20 Only) 1. Disconnect the CLU and LIS wires from the Testing the Discharge Check Valve liquid injection switch. The discharge check valve is a very important part 2.
Refrigeration Service Operations ARA054 Cover Nut Piston Spring Sealing Washer Sealing Washer Piston Screw/Piston Seat Cap Nut Piston Valve Body Figure 28: Check Valve Assembly 8. Observe the gauge manifold reading of the 11. Observe the gauge manifold readings of the engine driven compressor.
Refrigeration Service Operations Check Valve Repair 4. If no leaks are found, evacuate the system. 5. Recharge the unit with refrigerant and check Disassembly compressor oil. 1. Recover the refrigerant charge. Evaporator Coil 2. Loosen the cap nut and remove the cap nut, sealing washer, spring, and piston assembly.
Refrigeration Service Operations Expansion Valve Assembly Removal 1. Recover the refrigerant charge. 2. Remove the evaporator cover. Disconnect the evaporator fan motor wires. 3. Remove the feeler bulb from the suction line clamps. Note the position of the feeler bulb on the suction line.
Refrigeration Service Operations Suction Receiver Tank (Heat In-line Check Valves (TC Units Option Only) Only) TC units use in-line check valve in the hot gas Removal and/or liquid lines. These check valves are located 1. Recover the refrigerant charge. in the TC/heat kit. An in-line check valve is not repairable and must be replaced if it fails.
Use only one clip for hose #4. ASA127 Figure 32: Fitting The Clips 3. Lubricate the cylinder of the fitting to be inserted in the hose using Thermo King refrigerant oil. Figure 37: Tightening Both Clips ASA128 Figure 33: Lubricating The Cylinder Of The Fitting...
Structural Maintenance Unit Inspection Inspect the unit during the pre-trip inspection and during scheduled maintenance inspections for loose or broken wires or hardware, compressor oil leaks, or other physical damage which might affect unit performance and require repair or replacement of parts. Evaporator Coil Clean the coils during scheduled maintenance inspections.
Clutch Maintenance Clutch Test 1. If the field coil lead wire is broken, replace the field coil. 2. Check the amperage and voltage. The amperage range should be 3.6 to 4.2 amps at 12 volts or 1.8 to 2.1 amps at 24 volts. Note the following symptoms and conditions.
Clutch Maintenance NOTE: DO NOT hold the coil by the lead wire. Figure 44: Remove Coil Snap Ring Cover Inspection Figure 42: Remove Snap Ring and Cover 1. Drive Plate 5. Remove the pulley assembly using the clutch If the contact surface is scorched, the drive remover (P/N 204-806) and the spacer plate and pulley should be replaced.
Clutch Maintenance Clutch Installation 5. Install the cover and the snap ring using external ring pliers (P/N 204-808). NOTE: Before installation refer to “Inspection” NOTE: When installing the snap ring, the above. chamferred inner edge of the snap ring 1. Confirm that the felt is installed on the front of should face upward.
Clutch Maintenance NOTE: The shaft seal cover SHOULD NOT be reused. Always use a new shaft seal cover when reassembling a compressor. 8. Ensure that the clutch clearance is as specified. If necessary, adjust the clearance using shims. Adjusting shims are available in the following Shaft Seal Cover thicknesses: Shim P/N...
Clutch Maintenance damaged in any way. Make sure the shaft seal is 4. Place the shaft seal on the seal guide and slide free from lint and dirt that could damage the shaft the seal into the cylinder head. seal surface. Figure 52: Inspect Shaft Seal Shaft Seal Installation Before installing a shaft seal inspect it carefully...
Clutch Maintenance Special Tools 8. Place the shaft seal cover on the seal guide and slide the shaft seal cover into the cylinder head. 8932a Figure 56: Install Shaft Seal Cover Figure 58: Clutch Remover P/N 204-806 9. Use the seal installer (from the shaft seal kit P/N 204-805) to press the shaft seal cover into the cylinder.
Clutch Maintenance During normal operation there is always a quantity of oil that travels around inside the system. This oil lubricates all the components, returns to the compressor for a while, and again travels around the system. Adding Extra Oil to the System The initial oil charge into a new system is based on the size of the system and the amount of oil, which remains in the compressor during...
Clutch Maintenance Remove the compressor from the unit and drain CAUTION: Any extra or replacement oil the oil from the compressor drain plug and all should be placed into the system at the other ports. Turn the clutch (rotating the internal compressor parts) by hand and drain oil again.
Over-the-Road Mechanical Diagnosis If desired box temperature cannot be obtained refrigerant, evacuate the system to 500 microns during engine driven compressor operation, any and recharge with the proper amount of of the following may be indicated: refrigerant. An excessive heat load During EXCESSIVE HEAT LOAD: TEMPERATURE OF THE LIQUID LINE:...
Electric Standby Mechanical Diagnosis Condition Possible Cause Remedy Compressor does not run Improperly wired Check wiring against diagram Low line voltage Check line voltage, determine location of voltage drop Relay contacts not closing Check by operating manually. Replace relay if defective Fuses blown Replace fuses Open circuit in motor winding...
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Electric Standby Mechanical Diagnosis Condition Possible Cause Remedy Unit operates long or Shortage of refrigerant Repair leak and recharge continuously Discharge valve leaking Replace leak Thermostat faulty Repair or replace Dirty condenser Clean condenser Air in system Evacuate and recharge system Compressor inefficient Replace compressor Plugged expansion valve...
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Electric Standby Mechanical Diagnosis Condition Possible Cause Remedy Head pressure too low Refrigerant shortage Repair leak and recharge Compressor suction or discharge Replace valve valve inefficient Noisy unit Insufficient compressor oil Add oil to proper level Mounting bolts loose Tighten Refrigerant flooding back Adjust oil level or refrigerant charge.
Electric Standby Mechanical Diagnosis Electric Standby Service Checks 1.Compressor does not run. a.Check for power at source. b.Check for power at plug. c.Check for power at compressor contactor. d.Check for power at overload terminals (contactor closed). e.Check for power at motor terminals. 2.Power at compressor terminals but motor does not a.Replace compressor.
Refrigeration Diagnosis Chart POSSIBLE CAUSES • • Overcharge of refrigerant • • • • • • • Shortage of refrigerant • • • • • • • • No refrigerant • Air through condenser too hot (ambient) • Air flow through condenser restricted (dirty) •...
Index Expansion Valve Assembly 55 After Start Inspection 32 Fuses 22 BELT 15 Belt Tensions 69 GENERAL 13 General 11 Check Valve Repair 54 Check Valve Replacement 54 Checking Compressor Oil Charge 45 High 11 Checking the Oil Level 68 High Pressure Cutout And Condenser Fan Pressure Checking the Refrigerant Charge 44 Switches 50...
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Index R 14 Refrigerant 11, 20 Refrigerant Charge 43 Refrigeration 11 Refrigeration Diagnosis Chart 77 Refrigeration Maintenance 43 Refrigeration Service Operations 49 Replacing Refrigerant Hoses (Speedy Clip System) 57 Safety 11 Safety Precautions 11 Serial Number Locations 25 Shaft Seal Cover and Shaft Seal Removal And Installation 64 Solenoid Valves 50 Special Tools 66...
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Do you have a question about the V-200 Series and is the answer not in the manual?
Questions and answers
The chiller works with engine running but not on stand by 120v ac supply
The Thermo King V-200 Series chiller may not work on the standby 120V AC supply due to several possible reasons:
1. Compressor Operation Differences: The system has both an engine-driven compressor and an electric standby compressor. If the electric standby compressor or its motor is faulty, the unit will not operate on standby power.
2. Thermostat Control: The thermostat controls compressor operation by energizing the clutch during engine operation or starting the electric motor on standby. If the thermostat is not functioning correctly or not set properly, the standby operation may not engage.
3. Power Relay and Contactors: The standby mode relies on the power relay and electric relays to energize the fan relay, motor contactor, and electric standby compressor clutch. If these components are faulty or not receiving power, the standby system will not start.
4. Refrigeration System Protection: The system includes high and low-pressure cutout switches. If a pressure switch is triggered, it could prevent the standby compressor from operating.
5. Electrical Supply Issues: If the 120V AC supply is inadequate, unstable, or improperly connected, the electric standby compressor may not receive the necessary power to function.
Checking these components and connections can help diagnose why the unit is not working on standby power.
This answer is automatically generated
@David I have the opposite issue. Will run and refrigerate while plugged into power source. When driven will not refrigerate