48/50PD

Table 20 — ECB Connections

DISPLAY

POINT DESCRIPTION

 

SENSOR

TYPE OF I/O

CONNECTION

NAME

 

 

LOCATION

 

PIN NUMBER

 

 

 

INPUTS

 

 

 

Input power from MBB

 

control box

24 VAC

J1, 1---2

RM.OC

Remote occupancy switch

 

field installed

switch input

J4, 2

ENTH or

Outdoor enthalpy switch, or

 

economizer, or

switch input

J4, 4

IAQ.S

Indoor air quality switch

 

return/space

 

 

IAQ

Indoor air quality sensor

 

return/space

0---20 mA

J5, 2

OAQ or

Outdoor air quality sensor, or

 

field installed

0---20 mA

J5, 5

SP.RH

Relative humidity sensor

 

 

 

 

 

Sensor Common

 

 

Ground

J5, 3

 

Actuator Common

 

 

Ground

J7, 3

 

 

OUTPUTS

 

 

 

Output power to enthalpy switch

 

 

24 VAC

J4, 3

 

Output power for loop power sensors

 

 

24 VDC

J5, 1

 

Output power to economizer actuator

 

 

24 VAC

J7, 2

PE.1

Power exhaust 1 relay

 

 

relay

J8, 3

PE.2

Power exhaust 2 relay

 

 

relay

J8, 6

EC.CP

Commanded Economizer position

 

 

0---20 mA

J9, 1

 

 

COMMUNICATION

 

 

 

Local Equipment Network (LEN)

 

 

communication

J2, 1---3

 

Carrier Comfort Network (CCN)

 

 

communication

J3

EC.CP &

Economizer actuator position

 

 

MFT

J7, 1

EC.AP

(digital control)

 

 

communication

 

50

Page 50
Image 50
Carrier 48/50PD05 manual ECB Connections, Rm.Oc

48/50PD05 specifications

The Carrier 48/50PD05 is a remarkable addition to Carrier's lineup of rooftop units, offering advanced cooling and heating solutions for commercial applications. Designed for medium-sized buildings, this unit is well-suited for both new installations and as a replacement for older systems, thanks to its versatile features and efficient performance.

One of the standout features of the 48/50PD05 is its energy efficiency. It incorporates state-of-the-art technology to achieve high Seasonal Energy Efficiency Ratios (SEER) and EER ratings, reducing operational costs while delivering superior comfort. The unit is also compliant with the latest energy regulations, making it an environmentally friendly choice for building owners concerned about sustainability.

The 48/50PD05 is equipped with a highly efficient scroll compressor, which not only enhances performance but also contributes to quiet operation. This is a significant advantage in commercial spaces where noise levels need to be kept in check for comfort and productivity. Additionally, the unit includes advanced airflow design, ensuring even distribution of conditioned air throughout the space.

Technologically, the Carrier 48/50PD05 features Carrier's Infinity Control system, which allows for precise control of indoor climate. This intelligent control mechanism can be integrated with smart building management systems, enabling users to monitor and manage energy use effectively. Wi-Fi connectivity is also available, providing remote access for real-time adjustments and diagnostics.

Durability is another characteristic of the 48/50PD05. Constructed with high-quality materials, the unit withstands various environmental conditions, ensuring longevity and reliability. Moreover, the modular design facilitates easy maintenance, making service procedures efficient and cost-effective.

In addition to cooling, the Carrier 48/50PD05 offers heating capabilities, often utilizing gas or electric heating options that can be tailored to the specific needs of a building. The unit can also be equipped with integrated economizers, allowing for free cooling during suitable outdoor conditions, further enhancing energy savings.

Overall, the Carrier 48/50PD05 stands out as a high-performance HVAC solution that combines efficiency, technology, and durability. It provides building owners with a versatile tool to ensure comfort while minimizing their environmental footprint. With a strong emphasis on energy savings and advanced control features, this rooftop unit is a smart investment for any commercial property.