Carrier VECTOR 1550 Series Operation & Service Manual

62-61753-212-1SECTION 2 -UNIT DESCRIPTION2.1 INTRODUCTIONWARNINGLogiCOLD microprocessor equipped unitsmay start automatically at any time theSTART/RUN-OFF switch (SROS) is not inthe OFF position. Also, the unit may be fit-ted with two way communication equip-ment that will allow stating of the unit froma remote location even though the SROS isin the off position.WARNINGBe aware of HIGH VOLTAGE supplied atthe power plug or from the generator.When performing service or maintenanceprocedures: ensure any two way commu-nication is disabled in accordance with themanufacturers instruction, ensure theSTART/RUN-OFF switch is in the OFF posi-tion and, whenever practical, disconnectthe high voltage source and disconnect thenegative battery connection. NEVER dis-assemble the generator: HIGH MAGNETICFIELD INSIDE! This field can interfere withcardiac implants such as pacemakers anddefibrillators.This manual contains operating data, electrical dataand service instructions for the Vector 1550 & 1550CITY refrigeration system.Additional support manuals are listed in Table 2-2.The model/serial number plate is located inside theunit on the frame as shown in Figure 2-1.2.2 REFRIGERANT TYPES USEDWARNINGThe unit can be charged with R-404A or R-452A.Do not mix R-404A and R-452A refrigerant.In addition to the model number, a refriger-ant sticker informes about the refrigeranttype used by the unit.2.3 GENERAL DESCRIPTIONThe Vector 1550 & 1550 CITY unit is a hybrid die-sel/electric, fully charged, pre-wired, refrigera-tion/heating "nosemount" unit. The unit is used oninsulated trailers to maintain cargo temperatures withinvery close limits.Electrical power is supplied to the unit from a powerplug or by the integral generator which is drivenby the engine. The generator provides nominal460V/3Ø/60Hz power when the engine is in highspeed and nominal 300V/3Ø/45Hz power in lowspeed.The control system is microprocessor based. Once themicroprocessor is set at the desired temperature, thesystem automatically selects cooling and heating cy-cles as necessary to maintain the desired temperaturewithin very close limits.The unit can be described as having three major sec-tions, the condensing section (Figure 2-1) which in-cludes the engine-generator drive package (Figure2-2), evaporator section (Figure 2-3) and controls(Figure 2-2, Figure 2-4, Figure 2-5 & Figure 2-6).