EVAPORATOR-FAN MOTORS, PULLEYS, and Belts

Carrier 50MP62L-10R, MPE62L-10R, 48MPD specifications EVAPORATOR-FAN MOTORS, PULLEYS, and Belts

Fig. 50 Ð Door Latch

UNIT CONTROL BOX Ð Viewed facing compressors, the control box is at the left end of the unit. Incoming power for controls, refrigerant system, and fan system enters through the control box. The control box contains power compo- nents and electronic controls. Outer panels are hinged and latched for easy opening. Remove screws to remove inner panels. Outer panels can be held open for service and in- spection by using a door retainer on each panel. Remove bottom pin from door retainer assembly, swing retainer out horizontally, and engage pin in one of the retainer ears in the hinge assembly.

COMPRESSORS Ð The oil pump end (compressor access) of each compressor is readily accessible from sides of unit as shown in Fig. 51. Access the motor end of the compressor through the condenser end of the unit or by removing compressor.

LIQUID SERVICE VALVES, SOLENOID VALVES, FIL- TER DRIERS, AND SIGHT GLASSES Ð These compo- nents are located in the inside corner of the condenser sec- tion on the right-hand side of the unit. Filter driers are replaceable-core type. See Fig. 51.

EVAPORATOR-FAN MOTORS, PULLEYS, AND BELTS

ÐAccess to these components is through the 2 doors labeled FAN SECTION on each side of the unit.

POWER EXHAUST MOTORS, PULLEYS, AND BELTS

ÐAccess to these components is through the doors at the return air end of the unit.

GAS HEAT SECTION Ð Access to the gas heat section is through the door labeled ``HEAT SECTION'' on the right hand side of the unit. All gas system components are in the gas section. On 48MP62L and 70M units, additional access to the gas components is through the access panels in the unit corner post at the gas section. See Fig. 51.

UNIT CONTROL BOX Ð Access to this component is through the doors marked ELECTRICAL SECTION on the con- denser end of the unit.

ECONOMIZER DAMPER MOTORS Ð The economizer motors are located in the return air section. Access to the motors is through the doors labelled FAN SECTION on the each side of the unit.

RETURN-AIR FILTERS Ð Access to these ®lters is through the door marked FILTER SECTION on the right side of the unit.

CONDENSER FANS AND FAN MOTORS Ð Remove the wire fan guard on top of the unit to gain access to the con- denser fans and motors.

Cleaning Ð Inspect unit at the beginning of each heating and cooling season and during each season as operating con- ditions may require.

Clean condenser coil with a vacuum cleaner, fresh water, compressed air, or a bristle brush (not wire). Coil cleaning should be a part of the planned maintenance program. Clean evaporator coil with a stiff bristle brush (not wire), vacuum cleaner, or compressed air.

Check and clean condensate drain annually at the start of the cooling season.

Replace return-air ®lters at the start of each heating and cooling season or as often as necessary during each season, depending on operating conditions. See Table 1 for ®lter types, quantities, and sizes.

1.Remove economizer outdoor-air ®lters from the hoods by removing the ®lter retainers.

2.Clean ®lters with steam or hot water and mild detergent.

3.Reinstall ®lters in hoods after cleaning. Never replace clean- able ®lters with throwaway ®lters.

Fig. 51 Ð Access Locations (48MP70M Unit Shown)

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.