Carrier 48MPD, MPE62L-10R, 50MP62L-10R Field Electrical Connections, Make Electrical Connections

Page 14

PITCH DRAIN LINE

SEALANT

TO OFFSET LINE

 

FRICTION

 

2" MIN.

7" MIN.

UNIT

BASE

RAIL

SLAB

Field Electrical Connections

IMPORTANT: The 48/50MP units generate, use, and can radiate radio frequency energy. If units are not in- stalled and used in accordance with these instructions, they may cause radio interference. They have been tested and found to comply with limits of a Class A com- puting device as de®ned by FCC (Federal Communi- cations Commission) regulations, Subpart J of Part 15, which are designed to provide reasonable protection against such interference when operated in a commer- cial environment.

SLAB MOUNT DRAIN

Fig. 9 Ð Condensate Drain Piping Details

Make Electrical Connections

POWER SUPPLY Ð Electrical characteristics of available power supply must agree with unit nameplate rating. Supply voltage must be within the limits shown in Table 5.

Field Wire Routing Ð Field wiring is brought into the unit through the bottom of the control box.

A 35¤8-in. hole for ®eld power wiring and a 7¤8-in. hole for

24-v control wiring are provided in the bottom of the control box. Field-supplied couplings must be used when routing wir- ing into the control box.

HOLD

DOWN

BARS

Fig. 10 Ð Outdoor Air Hoods Shipping Position

POWER WIRING Ð Units are factory wired for 460-v as shown on the unit nameplate. The main terminal block is suitable for use with aluminum or copper wires. Maximum wire size is 500 MCM.

Branch circuit for power supply to unit must be protected against ground fault or short circuit. Provide an overcurrent protection device in the branch circuit. The MOCP (Maxi- mum Overcurrent Protection) value for this device is shown on unit informative data plate.

When installing units, provide and install a unit safety dis- connect per NEC of adequate size. Refer to Electrical Data tables for disconnect sizing. Disconnect may incorporate branch circuit fusing (if local or national codes permit) but combi- nation disconnect fuse is not required. Disconnect must be able to be locked OFF.

HOOD

TOP

FILTER

RACK

HOOD

SIDE

BLOCK-OFF

PLATE

Fig. 11 Ð Outdoor Air Hoods Installed

14

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Contents Installation, Start-Up and Service Instructions ContentsGeneral ContentsSafety Considerations Installation Install Outdoor HoodsPhysical Data Base Unit 48/50MPPhysical Data Variable Frequency Drive VFD Physical Data Optional Power Exhaust SpecicationsCompressor Oil Charge FAN MotorRoof Curb Dimensions, 48/50MP62L and 70M Roof Curb Dimensions, 48/50MP82N-10R Base Unit Dimensions, 48MP62L, 70M Base Unit Dimensions, 48MP82N-10R Base Unit Dimensions, 50MP62L and 70M Base Unit Dimensions, 50MP82N-10R Unit Unit WeightSize Field Electrical Connections Make Electrical ConnectionsNEC EquipGND LRA Electrical DataFLA MCARecommended Sensor Device Non-Shielded Cable ManufacturerSpace Temperature Sensor Wiring Space Temperature Sensor Averaging Heat Interlock Relay Outdoor Air¯ow Control Transducer/Thermistor CCN Connection Approved Shielded Cables Comm CCNCOM Auxiliary Control Box Location 50MP70M Unit Shown Installing Flue/Inlet Hoods 48MP Units Only Gas Piping DetailsCheck Compressor Mounting Flue De¯ector Baffle AssembledPRE-START-UP System CheckEvaporator-Fan Belts, Pulleys, and Sheaves Ð ExampleFan Performance Forward Curved Ð 48/50MP62L Fan Performance Forward Curved Ð 48/50MP70MFan Performance Forward Curved Ð 48/50MP82N Fan Performance Forward Curved Ð 48/50MP90PFan Performance Forward Curved Ð 48/50MP10R Fan Performance Air Foil Ð 48/50MP62LFan Performance Air Foil Ð 48/50MP70M Fan Performance Air Foil Ð 48/50MP82NFan Performance Air Foil Ð 48/50MP90P Fan Performance Air Foil Ð 48/50MP10RControls Conguration and Quick Test Keypad and Display Module Hsio Configuration Hsio Keypad Key UsageSet Point Ranges and Defaults Initial Check SET Point Subfunction Display Default RangeSTART-UP Basic Conguration DataOccupied Cooling GeneralSupply FAN IGC Control Board LED Alarms OverridesControl Loop Checkout 48/50MP Units SMG, SCV and MLG Recommended Starting ValuesIndex of Lead/Lag Circuits Compressors Control SystemComponents Lead CircuitKeypad and Display Module Hsio Stby YESFunction Hsio Keypad and Display Module Functions and SubfunctionsSUB Functions Service Variable Frequency Drive VFD DisplayPower Exhaust MOTORS, PULLEYS, and Belts EVAPORATOR-FAN MOTORS, PULLEYS, and BeltsManufacturer Lubricant LubricationRefrigerant Circuit Charging Chart Ð Unit 48/50MP62L Charging Chart Unit 48/50MP90P Belt Installation and Tensioning AdjustmentsPressure Switch Settings Psig kPag Switch Cutout CUT-IN06E Compressors, Typical Main Burner Removal Gas Valve AdjustmentProtective Devices Compressor ProtectionVariable Frequency Drive VFD Stby no Processor Modules PsioHigh-Voltage Relay Modules DSIO1 and DSIO2 Torque Compressors Compressor Replacement Ð Perform the followingTroubleshooting Compressor Stops on HIGH-PRESSURE Switch Troubleshooting and DiagnosticsProblem Solution Compressor does not RUN Compressor Cycles on LOW-PRESSURE SwitchTroubleshooting and Diagnostics IGC Control Heating Ð 48MP Units Only Page Packaged Service Training Call for Free CatalogSTART-UP Checklist Model no Serial no Date TechnicianIII. Preliminary Checklist Items IV. START-UPCL-3 Fact Config Fanm

MPE62L-10R, 50MP62L-10R, 48MPD specifications

The Carrier 48MPD, 50MP62L-10R, and MPE62L-10R are advanced rooftop packaged units designed for a variety of commercial HVAC applications. These systems offer a compelling blend of energy efficiency, versatility, and high performance, making them ideal choices for businesses looking to enhance their indoor climate control.

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