Carrier 48/50PG20-28, 48/50HG014-028 Operation, Configuring the ComfortLinkt Controller

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CRSMK

SMOKE DETECTOR

WIRE TIES

C07180

Fig. 9 ---Supply Smoke Detector Location and Wire Routing (Top View)

RJ-45 HARNESS

INSTALL CONTROL

MODULE HERE

USING THREE SCREWS

CUT TAPE BEFORE INSERTING SMOKE DETECTOR.

ROUTE RJ-45 HARNESS ALONG

SMOKE POWER HARNESS

THRU BOX, AND OUT

AS SHOWN TO

SUPPLY SMOKE DETECTOR

PUNCH OUT KNOCK OUT

PLUG

C07181

Fig. 10 ---Supply Control Module Installation (Side View)

Configuring the ComfortLinkt Controller

Configuration settings for the ComfortLink controller are changed by using the Scrolling Marquee display. A password may be required to edit the configurations, depending on the previous settings configured in the unit. Default password is “1111.” Use the arrow keys to scroll the red LED on the display to the “Configuration” position and press ENTER . Scroll through the menu until UNIT is found and press ENTER . After reaching the UNIT sub-menu, scroll to FS.SW (Fire Shutdown Input) and press ENTER twice, change the value to 1 (Normal Open) with the arrow keys, press ENTER again. Press ESCAPE three times to return to the top level of the menu.

Additional information about changing configurations can be found in the Control and Troubleshooting Guide for 48/50HG and 48/50PG units.

OPERATION

!CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in damage to the unit.

The smoke detector must be tested and maintained regularly following NFPA 72 requirements. The smoke detector should be cleaned at least once a year.

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Contents General Table of ContentsSafety Considerations Return Air Smoke Detector Installation CRSMKDET001D00 InstallationCheck Package Contents Smoke Detector Supply and Return Sensor Tube Supply Air Smoke Detector Installation CRSMKSUP001D00 Sampling Tube Support BracketSmoke Detector Wiring on Electro-Mechanical Control Units Sensor Installation CRSMKSEN001A00 Make sure sampling tube holes are aligned facing UPConfiguring the ComfortLinkt Controller OperationMaintenance Recommended Service ScheduleCleaning Procedure Sensor TestsTroubleshooting Power LEDDirty LED Trouble LED

48/50PG20-28, 48/50HG014-028 specifications

The Carrier 48/50HG014-028 and 48/50PG20-28 are part of Carrier's extensive lineup of commercial and industrial HVAC systems, designed for optimal performance, energy efficiency, and reliability. These units are particularly known for their robust construction and advanced technology, making them suitable for a variety of applications, including large commercial buildings, manufacturing centers, and other facilities that require consistent climate control.

One of the key features of the Carrier 48/50HG units is their high-efficiency scroll compressors, which not only enhance performance but also significantly reduce energy consumption. These compressors are designed to maintain efficiency across a wide range of operating conditions, providing reliable cooling and heating year-round. Additionally, the units are equipped with advanced microprocessor controls that allow for precise temperature regulation and system diagnostics, optimizing energy use and simplifying maintenance.

The 48/50HG and 48/50PG models also boast a compact design, making installation easier, especially in spaces with limited access. Their lightweight construction and modular components enable quick and efficient service, an essential feature for businesses that cannot afford prolonged downtimes. The units come with a comprehensive range of factory-installed options, including variable-speed fans and advanced economizer systems that increase indoor air quality while reducing operational costs.

Noise reduction technology is another significant characteristic of these units. They are designed with sound-dampening features that minimize operational noise, which is particularly beneficial for urban environments or noise-sensitive applications. In addition, the units meet or exceed standard regulatory requirements for efficiency and emissions, further enhancing their appeal in an increasingly eco-conscious market.

Moreover, the Carrier 48/50HG and 48/50PG series incorporate environmentally friendly refrigerants with low Global Warming Potential (GWP), aligning with Carrier's commitment to sustainability. This approach not only complies with current environmental regulations but also prepares users for future mandates regarding refrigerant use.

In conclusion, the Carrier 48/50HG014-028 and 48/50PG20-28 series are engineered to deliver exceptional performance, energy efficiency, and reliability. Their combination of advanced technologies, ease of maintenance, and commitment to sustainability makes them a top choice for businesses seeking effective climate control solutions. With a focus on innovation and customer satisfaction, Carrier continues to set the standard in the HVAC industry.
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