Carrier MPE62L-10R, 50MP62L-10R, 48MPD specifications Equip, Gnd, Nec

Page 15

Disconnect must be located within sight of the unit and read- ily accessible from the unit in compliance with NEC Article 440-14.

All ®eld wiring must comply with NEC and all local codes. Size wire based on MCA (Minimum Circuit Amps) value shown on the unit informative plate. See Fig. 12 for power wiring connections to the unit power terminal block and equip- ment ground.

Operating voltage to the compressor must be within the volt- age range indicated on the unit nameplate. Voltages between phases must be balanced within 2%, and the current must be balanced within 10%. See Table 5 for unit electrical data.

Use the following formula to determine the percent voltage imbalance.

% Voltage Imbalance

max voltage deviation from average voltage

= 100 x

average voltage

EXAMPLE: Supply voltage is 460-3-60.

AB = 452 v BC = 464 v AC = 455 v

452 + 464 + 455

Average Voltage =

3

1371

=

3 = 457

Determine maximum deviation from average voltage: (AB) 457 − 452 = 5 v

(BC) 464 − 457 = 7 v (AC) 457 − 455 = 2 v

Maximum deviation is 7 v.

Determine percent voltage imbalance:

7

% Voltage Imbalance = 100 x

457

= 1.53%

This amount of phase imbalance is satisfactory as it is be- low the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact local utility immediately.

Unit failure as a result of operation on improper line volt- age or excessive phase imbalance constitutes abuse and may cause damage to electrical components.

 

LEGEND

EQUIP

Ð Equipment

GND

Ð Ground

NEC

Ð National Electrical Code

TB

Ð Terminal Block

Fig. 12 Ð Field Power Wiring Connections

15

Page 14 Page 16
Image 15
Page 14 Page 16
Contents Contents Installation, Start-Up and Service InstructionsContents Safety ConsiderationsGeneral Install Outdoor Hoods InstallationBase Unit 48/50MP Physical DataPhysical Data FAN Motor Optional Power Exhaust SpecicationsCompressor Oil Charge Variable Frequency Drive VFD Physical DataRoof 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 Weight SizeUnit Make Electrical Connections Field Electrical ConnectionsEquip GNDNEC MCA Electrical DataFLA LRAManufacturer Recommended Sensor Device Non-Shielded CableSpace Temperature Sensor Wiring Space Temperature Sensor Averaging Heat Interlock Relay Outdoor Air¯ow Control Transducer/Thermistor CCN Connection Approved Shielded Cables CCN COMComm Auxiliary Control Box Location 50MP70M Unit Shown Gas Piping Details Installing Flue/Inlet Hoods 48MP Units OnlyFlue De¯ector Baffle Assembled Check Compressor MountingSystem Check PRE-START-UPExample Evaporator-Fan Belts, Pulleys, and Sheaves ÐFan Performance Forward Curved Ð 48/50MP70M Fan Performance Forward Curved Ð 48/50MP62LFan Performance Forward Curved Ð 48/50MP90P Fan Performance Forward Curved Ð 48/50MP82NFan Performance Air Foil Ð 48/50MP62L Fan Performance Forward Curved Ð 48/50MP10RFan Performance Air Foil Ð 48/50MP82N Fan Performance Air Foil Ð 48/50MP70MFan Performance Air Foil Ð 48/50MP10R Fan Performance Air Foil Ð 48/50MP90PControls Conguration and Quick Test Hsio Keypad Key Usage Keypad and Display Module Hsio ConfigurationSet Point Ranges and Defaults Basic Conguration Data SET Point Subfunction Display Default RangeSTART-UP Initial CheckGeneral Supply FANOccupied Cooling Overrides IGC Control Board LED Alarms48/50MP Units SMG, SCV and MLG Recommended Starting Values Control Loop CheckoutLead Circuit Control SystemComponents Index of Lead/Lag Circuits CompressorsStby YES Keypad and Display Module HsioHsio Keypad and Display Module Functions and Subfunctions SUB FunctionsFunction Variable Frequency Drive VFD Display ServiceEVAPORATOR-FAN MOTORS, PULLEYS, and Belts Power Exhaust MOTORS, PULLEYS, and BeltsLubrication Refrigerant CircuitManufacturer Lubricant Charging Chart Ð Unit 48/50MP62L Charging Chart Unit 48/50MP90P Switch Cutout CUT-IN AdjustmentsPressure Switch Settings Psig kPag Belt Installation and Tensioning06E Compressors, Typical Compressor Protection Gas Valve AdjustmentProtective Devices Main Burner RemovalVariable Frequency Drive VFD Processor Modules Psio High-Voltage Relay Modules DSIO1 and DSIO2Stby no Compressor Replacement Ð Perform the following TroubleshootingTorque Compressors Compressor Cycles on LOW-PRESSURE Switch Troubleshooting and DiagnosticsProblem Solution Compressor does not RUN Compressor Stops on HIGH-PRESSURE SwitchTroubleshooting and Diagnostics IGC Control Heating Ð 48MP Units Only Page Call for Free Catalog Packaged Service TrainingModel no Serial no Date Technician START-UP ChecklistIV. START-UP III. Preliminary Checklist ItemsCL-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.

One of the standout features of the Carrier 48MPD series is its high efficiency rating, which significantly reduces operational costs while minimizing environmental impact. The unit utilizes advanced scroll compressors that provide reliable and efficient cooling capabilities, ensuring optimal temperature regulation regardless of outdoor conditions. This innovative design also contributes to quieter operation, enhancing indoor comfort without disruptive noise levels.

The Carrier 50MP62L-10R model boasts superior cooling and heating capabilities, equipped with a multi-speed fan system that allows for tailored airflow to suit specific project requirements. This model's economizer feature is pivotal for harnessing outside air to offset mechanical cooling, leading to further energy savings, particularly in moderate weather conditions. Additionally, the unit's dual-fuel capability enhances its operational flexibility, allowing it to switch between electric and gas heating sources depending on efficiency needs.

In terms of control technologies, the MPE62L-10R is equipped with Carrier's advanced Smart Evaporator Control, which ensures precise humidity management while optimizing energy consumption. This model also integrates seamlessly with building automation systems, enabling remote monitoring and adjustments for greater operational oversight and efficiency. The intuitive user interface simplifies system programming and operation, making it accessible even for those without extensive technical backgrounds.

Another important characteristic of these units is their robust construction, designed to withstand challenging weather conditions and ensure longevity. The use of high-quality materials and components means lower maintenance costs over time.

Overall, the Carrier 48MPD, 50MP62L-10R, and MPE62L-10R represent a well-engineered suite of HVAC solutions that excel in efficiency, adaptability, and user-friendliness, establishing themselves as leading choices for commercial indoor climate management. With their blend of innovative technology and solid performance, these systems are well-suited to meet the diverse needs of modern commercial spaces.
Top Page Image Contents