Removal Remove the coil and disassemble the valve. On the M13 cab box the defrost indicator light is positioned on the defrost key. Tee-Fitting for V250 Suction Line Access Pressurize the refrigerant system and check for leaks. Coil Inspect the coil for a loose connector or cracked insula- tion. F3 This 10 amp fuse protects the circuit to the power relay and the heat relay. There are two basic models: is driven by a belt from the engine. Unsolder the suction line from the evaporator coil.
Observe the gauge manifold readings of the electric standby compressor. With these conditions established, open the low side the high side valve on the gauge manifold open, and valve on the gauge manifold and open the valve on the open the valve on the refrigerant drum to deliver liquid. A belt that is too tight causes severe overload on the compressor and motor bearings. This will save time and eliminate guesswork. Note what appears on the digital dis- The cab control box contains the thermometer and the ther- play.
Check the refrigerant charge and the compressor Disconnect the liquid line and the distributor from the oil and add as required. Place the coil in the unit and install the mounting hard- Remove the compressor mounting screws. This procedure assumes the rest of the defrost system 12. If no leaks Open the refrigeration valves, and place the unit in are found, evacuate the low side. Putting the Unit Back Into Operation Replace check valve or check valve seats. Drain the col- Run the unit in cool on engine operation.
Compressor belt tension is correct. Evacuate the following may be indicated: the system in the same manner used during installation. Check Clearance Shims Electrical Connection Install Shims and Drive Plate Connect the lead wire to the electrical circuit. Power Filter Capacitor Motor Contactor Transformer Fuse and Fuse Holder Overload Relay High Voltage Box - Typical for 3 Phase P97. The door approaching to Fesco opened for future successful deployment of Zestia units in Russia market. When this light is on, it indicates that the overload relay has opened. Removal Remove the mounting bolts and slide the coil from the Remove the refrigerant charge.
Such terms and conditions are available upon request. The engine compressor on medium-sized trucks. The defrost cycle should stop automati- cally. During engine operation, the water pump and the evaporator fans operate while the unit is in heat. Clean the section of the front cylinder head that holds shaft seal.
Check for power at source 2. Install new high pressure cutout switch. The heater con- F2 This 15 amp fuse protects the circuit to the evapo- tactor is used to control the operation of the optional rator fan motor. Contact your local Thermo King dealer for further information. It separates compres- the operation of the unit by energizing and de-energizing the sor oil from refrigerant vapor and returns the oil to the com- power relay, the electric relays, and the heat contactor.
Refrigerant oil in the flushing com- pressor will absorb acids from the system. Heat Contactor Optional Motor Run Capacitor High Voltage Box—Pre-1997. Motor Contactor Motor Run Capacitor Heat Contactor Optional Motor Start Relay High Voltage Box—Starting 1997. On-Off Key Fahrenheit Indicator 14. Drain the Oil Color changed to a varnish color. Replace any fuses that are missing or blown.
If the insulation is cracked, replace the coil. Power Filter Capacitor Transformer Motor Starting Capacitor Motor Contactor Motor Start Relay Fuse and Fuseholder Motor Run Capacitor Motor Protector High Voltage Box - Typical for Single Phase P97. If the 12 circuit is V250. Use the following procedure to check the defrost initiation timer. Check refrigerant charge and add refrigerant as required. Close switch S2 to pin 4 and switch S4 to pin 7. Electrically it is age potentials can exist on connections in the high voltage located between F1 and the condenser fan motor.
Continue flushing until compressor oil is clean. This Cab Control Box indicator must be reset by pressing the On-Off Key after allowing time for the overload relay to cool. Place the shaft seal cover on the seal guide and slide the shaft seal cover into the cylinder head. Check for power at compressor contactor 4. Check for power at overload terminals contactor closed 5. Check for power at plug 3.