b. In main control box connect one Motormaster VFD harness 48ZZ401971 to the load side of MMF-A (label the opposite end of this harness as MMF-A) and the other Motormaster VFD har- nesses 48ZZ401971 to the load side of MMF-B (label the opposite end of this harness as MMF-B). Run the harnesses along the bottom of the control box and out through the hole that the OFM har- nesses were in. Pull the harnesses out through the hole in the bottom of the control box and run them through the opening of the cable tray (in the same manner as the OFM harnesses).

c.Run the MMF-A cable through 1-in. connector of MMV-A enclosure (do not tighten connector screws at this time). Connect L1, L2, and L3 wires to MMV-A terminals L1, L2, and L3. Connect green ground wire to MMV-A ground screw. Place 1 large varnish cloth 48DA510141 around both cables at the point they enter the 1-in. connector. Tighten down connector screws being careful not to damage the cables.

d.Run the MMF-B cable through 1-in. connector of MMV-B enclosure (do not tighten connector screws at this time). Connect L1, L2, and L3 wires to MMV-B terminals L1, L2, and L3. Connect green ground wire to MMV-B ground screw. Place the other large varnish cloth 48DA510141 around both cables at the point they enter the 1-in. connec- tor. Tighten down connector screws being careful not to damage the cables.

e.In Main Control box connect 1 Motormaster VFD (variable frequency drive) harness 48ZZ402001 to the NO (normally open) contact of FR-A (see

ROUTE THROUGH

SNAP BUSHING

MOTORMASTER A

CONTROL

MOTORMASTER B

CONTROL

TRANSDUCER A

TRANSDUCER B

Fig. 11) (label the opposite end of this harness as FR-A) and the other Motormaster VFD harness 48ZZ402001 to the NO contact of FR-B (label the opposite end of this harness as FR-B). Run the har- nesses along the bottom of the control box and out through the hole that the OFM harnesses were in. Pull the harnesses out through the hole in the bot- tom of the control box and run them through the opening of the cable (in the same manner as the OFM harnesses).

f.Run the FR-A cable through the 1/2-in. connector of the MMV-A enclosure (do not tighten connector screws at this time). Connect black wire to MMV- A terminal 2 and red wire to MMV-A terminal 1, 13A, or 13C (see Table 4). Place 1 small varnish cloth 38C24601 around both cables at the point they enter the 1/2-in. connector. Tighten down con- nector screws being careful not to damage the cables.

g.Run the FR-B cable through the 1/2-in. connector of the MMV-B enclosure (do not tighten connector screws at this time). Connect black wire to MMV- B terminal 2 and red wire to MMV-B terminal 1, 13A, or 13C (see Table 4). Place the other small varnish cloth 38C24601 around both cables at the point they enter the 1/2-in. connector. Tighten down connector screws being careful not to damage the cables.

10.Bundle excess wire and dress harnesses with wire ties.

11.Reattach control box, MMV enclosure, and cable tray covers.

REMOVE PANEL AND

FAN DECKS

RUN ELECTRICAL HARNESSES UP THE SIDE OF THE UNIT IN THE

SPACE BETWEEN THE CORNER POST AND THE CONTROL BOX.

ROUTE WIRES INTO WIRE TRAY AND RUN TO MMV A/B AND

OFM 3/1

a48-8567

Fig. 9 — MMV Control Mounting — 48/50P070,075 Units

10

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Carrier 48/50P3, 48/50P4, 48/50P2, 48/50P5030-100 installation instructions A48-8567, MMV Control Mounting 48/50P070,075 Units
Page 9 Page 11

48/50P5030-100, 48/50P3, 48/50P2, 48/50P4 specifications

The Carrier 48/50P5030-100, 48/50P4, 48/50P3, and 48/50P2 series represent a range of highly efficient air conditioning and heating solutions developed by Carrier. Designed for commercial and industrial applications, these units combine advanced technology with robust features to deliver reliable performance and comfort.

One of the standout features of the Carrier 48/50P series is their energy efficiency. These units are equipped with high-efficiency compressors and fans that optimize energy use while maintaining superior cooling and heating capabilities. The models often meet or exceed ASHRAE efficiency standards, providing significant energy savings over traditional systems. This makes them not only cost-effective over their lifespan but also a responsible choice for energy-conscious businesses.

The 48/50P5030-100 model is notable for its ability to deliver precise temperature control, thanks to its sophisticated microprocessor control panel. This control system allows for easy adjustments and provides valuable diagnostic information, ensuring operational reliability and maintenance efficiency. The advanced controls also support variable-speed technology, which adjusts the system’s output based on real-time demands, enhancing both comfort and energy savings.

In terms of construction, these units are designed for durability. With a rugged, weather-resistant cabinet and high-quality components, they can withstand harsh environmental conditions, making them suitable for a variety of settings. The units typically include high-efficiency filters that improve indoor air quality by reducing airborne particles and allergens.

Another key characteristic of the Carrier 48/50P series is their versatility. These units can be configured for various applications, including rooftop installations and ground-mounted setups. Their modular design allows for easy integration into existing systems, accommodating different space requirements while providing optimal performance.

Carrier also emphasizes noise reduction in the design of these units, incorporating sound-dampening technologies that minimize operational noise. This is particularly valuable in environments where quiet operation is essential, such as schools and offices.

Overall, the Carrier 48/50P5030-100, 48/50P4, 48/50P3, and 48/50P2 series represent a commitment to quality, efficiency, and innovation in climate control solutions. With their advanced features, energy-saving technologies, and robust design, these models are well-suited to meet the diverse needs of modern commercial and industrial facilities. Carrier continues to lead the industry by integrating cutting-edge technology with a focus on performance and sustainability, ensuring that their systems provide long-term comfort and efficiency.
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