Quantcast Figure 4-8. <a href="http://firecontrolman.tpub.com/14104/css/Evaporator-181.htm">Evaporator</a>, fan, motor, and thermal protector, removal and installation

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TM-5-4120-361-14 Air Conditioner Vertical Compact 18 000 BTU/HR 208 Volts 3 Phase 50/60 Hz (Model 18K 208 3 60) Manual
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Installation - TM-5-4120-361-14_61
TM 5-4120-361-14 NOTE : REMOVE AND INSTALL CONDENSER MOTOR THERMAL PROTECTOR IN SAME MANNER Figure 4-8. Evaporator, fan, motor, and thermal protector, removal and installation d. Test. (1) Refer to figure 4-8 and remove housing from the high and low speed mo- tor winding thermal protectors. Refer to para 4-22c and test thermal protec- tors. (2) Test the motor for open-cir- cuited or grounded windings as follows. (a) Using a multimeter, test at P3 for continuity across a combination of two leads until each of the three high speed winding leads is tested. Do the same for the three low speed winding leads. If continuity is not indicated, the winding is open and the motor should be  replaced. (b) Using a multimeter, test for continuity by placing one test probe against the motor housing (on bare metal only) and the other probe against each of the motor winding leads. If  contin- uity is indicated, the winding is grounded, and the motor should be re- placed. (c) Reinstall housing on thermal protector. e. Installation. (1) Refer to figure 4-8 and assem- ble the fan and motor assembly. (2) Refer to figure 4-7 and install evaporator fan and motor assembly. (3) Refer to figure 4-1 and install the evaporator air inlet louver. 4-22. Evaporator Fan Motor Thermal Pro- tector. a. General. There are two automatic reset thermal protectors on the evapora- tor fan motor. Both thermal protectors are similar in appearance. One of the protectors provides overload protection for the low speed motor winding while the other provides protection for the high speed motor winding. b. Removal. (1) Refer to paragraph  4-21c and remove evaporator fan and motor assem- bly . (2) Refer to figure 4-8 and un- solder thermal protectors. 4-16

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