Carrier 48/50PG20-28, 48/50HG014-028 installation instructions Installation, Check Package Contents

Page 2

Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

!WARNING

FIRE HAZARD

Failure to follow this warning could cause personal injury and/or equipment damage.

This device will not sense smoke unless the ventilation system is operating and the cover is installed.

CRSMK

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personal injury, death and/or equipment damage.

Disconnect all power to the unit before performing maintenance or service. Install Lock Out tags on disconnects or breakers.

!WARNING

FIRE HAZARD

Failure to follow this warning could cause personal injury and/or death.

The National Fire Protection Association has established that DUCT DETECTORS MUST NOT BE USED AS A SUBSTITUTE FOR OPEN AREA DETECTOR PROTECTION as a means of providing life safety. Nor are they a substitute for early warning in a building’s regular fire detection system. Carrier supports this position and strongly recommends that the user read NFPA Standards 90A, 72, and 101. This smoke detector is listed per UL 268A.

!WARNING

ELECTRICAL SHOCK AND FIRE HAZARD

Failure to follow this warning could cause personal injury.

This device will not operate without electrical power. Fire situations may cause an interruption of power. The system safeguards should be discussed with your local fire protection specialist.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personal injury and/or equipment damage.

For this detector to function properly, it MUST be installed according to the instructions in this manual. The detector MUST be operated within ALL electrical and environmental specifications listed in this manual. Failure to comply with these requirements may prevent the detector from activating when smoke is present in the air duct.

INSTALLATION

!CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage.

When installing the smoke detector in the unit, follow all local codes.

Check Package Contents

Remove accessory packaging and inspect shipment for damage. If any damage is found, file a claim with the shipping agent immediately. If any item is missing or any part does not assemble properly, notify the Carrier distributor.

Table 1 lists the accessory package contents. Fig. 2 shows the smoke detector.

Return Air Smoke Detector Installation (CRSMKDET001D00)

The return air smoke detector is to be installed in the predrilled holes located above compressor B1/A2 in the electrical/compressor section. (See Fig. 3.)

Table 1—Accessory Package Contents — Return Air Smoke Detector (CRSMKDET001D00),

Supply Air Smoke Detector (CRSMKSUP001B00), Sensor (CRSMKSEN001A00)

 

RETURN SMOKE DETECTOR

SUPPLY SMOKE DETECTOR

ADDITIONAL SENSOR

 

UNIT

CRSMKDET001D00

 

CRSMKSUP001B00

 

CRSMKSEN001A00

 

 

Description

Part Number

Quantity

Description

Part Number

Quantity

Description

Part Number

Quantity

 

Sensor/Controller/

HK61ZT001

1

Controller/

HK28ZT001

1

Sensor Module

HK50ZT001

1

 

Harness/Tube

RJ-45 Harness

 

 

 

 

 

 

 

 

 

Screw

AL56AU168

2

Screw

AL56AU168

5

Screw

AL56AU168

1

 

Screw

AL48AM397

2

Sensor Module

HK50ZT001

1

Screw

AL48AM397

2

 

Bracket

50TG501113

1

Tube

RN20ZT008

1

Bracket

50TG501113

1

 

Large Bushing

HY93NH085

1

Cable Assy

RM91ZT015

1

Large Bushing

HY93NH085

1

 

Sampling Tube

RN20ZT060

1

Plug

—

1

Sampling Tube

RN20ZT060

1

48/50HG014-028,

Plug

—

1

Rubber Gasket

—

2

Plug

—

1

Rubber Gasket

—

2

Sampling Tube Collar

—

1

Rubber Gasket

—

2

48/50PG20-28

 

Sampling Tube Collar

—

1

Snap-in Wire Tie

HY76TB110

2

Sampling Tube Collar

—

1

 

Wire Tie

HY76TB125

1

Wire Tie

HY76TB125

2

Tube

RN20ZT008

1

 

Bushing

HY93NH069

1

Bushing

HY93NH069

1

Cable Assy

RM91ZT015

1

 

Harness Assy

50TG403507

1

Harness Assy

50TG403507

1

Snap-in Wire Tie

HY76TB110

5

 

Exhaust Tube

—

1

Exhaust Tube

—

1

Wire Tie

HY76TB125

1

 

 

 

 

 

 

 

Cable Assy

RM91ZT001

1

 

 

 

 

 

 

 

Exhaust Tube

—

1

2

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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 OperationCleaning Procedure MaintenanceRecommended Service Schedule Sensor TestsDirty LED TroubleshootingPower 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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