MTS-T4-LG200 Service Manual Update
Contents
1. A a a A Temperature Switch ees i ry 5 4 D o _e Switchis open under 195 F pis r a gt e Switch is closed over 195 F Ca i RAR Ii Water Pump2. is within an acceptable range between 28 and 450 PSI E i mp Fuses the AC compressor Compressor Fuse MTS T4 LG200 Service Manual Update If you have any further questions or concerns regarding this service manual update please contact RigMaster Power s Technical Support Department at 888 208 3101 before proceeding with service or repairs Continued from 1 15 Location Component Operation Receives its power from the binary switch through F Compressor o 7 5 amp in line fuse G AC Controlled Fan Receives its signal from the power module whenever Relay 1 the air conditioning is called for 35 Amp Electric H Fuses the electric radiator fan Fan Fuse i AC Controlled Fan Receives its signal from the power module whenever Relay the air conditioning is called for J 35 Amp Electric Fuses the electric bottom fan Fan Fuse Engine Temperature Switch Circuit Coolant Outputs signal voltage to the engine temperature Temperature controlled radiator fan relay when the engine Switch reaches 195 F Engine Receives its signal from the coolant temperature Temperature switch ensuring that the electric radiator fan Controlled Fan operates when engine temperature rises above Rela the switches threshold OM PAMP TEINE Fuses the electric fan Fan Fuse N Electric Cools the radiator and the condenser Radiator Fan O Electric Circulates air through the unit when AC Bottom Fan is called for Figure 1 41 El ttric Fan Fig ire 1 42 Ct OA
3. MTS T4 LG200 Service Manual Update If you have any further questions or concerns regarding this service manual update please contact RigMaster Power s Technical Support Department at 888 208 3101 before proceeding with service or repairs 1 15 Coolant Temperature Controlled Electric Fan Switch Figure 1 40 4H D maa K NOTE Please note that this is a representative schematic and is intended to illustrate the interrelationship between the AC electrical system and the engine temperature switch which are both capable of activating the electric fan There are diodes in these electrical circuits that are not represented in this schematic detailed circuit information should be obtained through the wiring schematic in section 1 14 Figure 1 39 Air Conditioning Electrical Circuit Location Component Operation Houses the climate control thermostat and sends A Cabin Controller signals to the power module to control the ON OFF cycle of the compressor Receives inputs from the cabin controller and B Power Module outputs voltage through the J1 connection point green wire pin number 2 to the evaporator thermostatic switch to power the AC system Evaporator Monitors the temperature of the evaporator and C Thermostatic regulates power to the binary pressure switch to Switch prevent the evaporator core from freezing Allows voltage to pass to the compressor and AC D Binary Pressure controlled fan relays when the pressure in the Switch system
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