Step 12 --Install All Accessories-- Install all

field-installed accessories. Refer to the accessoly installation instructions included with each accessory.

MOTORMASTER® I CONTROL INSTALLATION

(48TJ016,020 UNITS)

Install Field-Fabricated Wind Baffles -- Wind baffles must be field-fabricated for all units to ensure proper cooling cycle operation at low ambient temperatures. See Fig. 21 for baffle

details. Use 20-gage, galvanized sheet metal, or similar

conosion-resistant metal for baffles. Use field-supplied screws to attach baffles to unit. Screws should be 1/4-in. diameter and

5/8-in. long. Drill required screw holes for mounting baffles.

To avoid dmnage to the refiigemnt coils and electric_d com-

ponents, use recommended screw sizes only. Use care when drilling holes.

) MIN

BAFFLE TOP VIEW 1" (25) MIN--_

78.12"

-+0.125"

0984

-+3)

I 10" (254)

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--

40"

 

 

 

'

1016

 

 

 

 

_10"

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""-'--I15" (381)

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1_

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3/4"(19)0-¥P)--'_ _"_ "1" (25) MIN

BAFFLE FRONT VIEW

NOTE: Dimensions in ( ) are in mm.

Fig. 21 --Wind Baffle Details

Install Motormaster [ Controls -- Only one Motormaster I

control is required per unit. The Motormaster I control must be used in conjunction with the Accessory 0 ° F Ix_w Ambient Kit (purchased separately). The Motormaster [ device controls out- door fan no. 1 while outdoor fans no. 2 and 3 are sequenced off by the Accessory 0 ° F Low Ambient Kit.

Accessoiw 0 ° F Din' Ambient Kit -- Inst_dl the Accessory F Ix_w Ambient Kit per instruction supplied with accessory. Sensor Assembly -- Install the sensor assembly in the location shown in Fig. 25_

Motor Mount- To ensure proper fan height, replace the exist- ing motor mount with the new motor mount provided with accessory.

Tran._fiwmer (460 and 575-vUnits On@) -- On 460 and 575-v

units, a transhmner is required. The transformer is provided with the accessory and must be field-installed.

Motormaswr I Control -- Recommended mounting location is

on the inside of the panel to the left of the control box. The control should be mounted on the inside of the panel, verti- cally, with leads protruding from bottom of extrusion.

 

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HAIRPIN END

HAIRPIN END

48TJ016

48TJ020

NOTE: All sensors are located on the eighth hairpin up from the bottom.

Fig. 22 --Motormaster I Sensor Locations

15

Page 15
Image 15
Carrier 48TJ016-028 specifications Install All Accessories-- Install all, Motormaster I Control Installation

48TJ016-028 specifications

The Carrier 48TJ016-028 is a notable model in the range of packaged rooftop units designed by Carrier, a leader in heating, ventilation, and air conditioning (HVAC) solutions. Tailored specifically for commercial applications, these units provide a blend of efficiency, durability, and reliability, making them suitable for a variety of settings, including offices, retail spaces, and industrial environments.

One of the standout features of the 48TJ series is its energy-efficient performance. Equipped with high-efficiency scroll compressors, these units offer superior cooling capacity while minimizing energy consumption. This aligns with modern sustainability goals, helping businesses reduce their carbon footprint and operational costs. Additionally, the 48TJ units comply with stringent industry standards, such as the ASHRAE 90.1 energy efficiency guidelines, ensuring that users receive a product that meets modern energy performance benchmarks.

The 48TJ016-028 units also include advanced technologies that enhance performance and user comfort. The inclusion of a sophisticated microprocessor control system facilitates precise temperature regulation, allowing for an optimal balance of cooling and heating based on real-time conditions. Moreover, the user-friendly controls make it easy for facility managers to monitor system performance and make adjustments as necessary.

Another notable characteristic of the 48TJ series is its flexible installation options. These rooftop units are designed for easy integration into existing building structures and can be installed on flat or pitched roofs. Their compact design and lightweight construction simplify the installation process while minimizing structural impacts on buildings.

Durability is paramount in the design of the 48TJ units as well. The cabinets are constructed from high-quality materials with corrosion-resistant coatings, ensuring a long lifespan even in harsh environmental conditions. The systems are also equipped with robust insulation to reduce sound levels and improve overall operating efficiency.

Furthermore, the Carrier 48TJ016-028 units offer various options for customization. Users can choose from different airflow configurations, heating options, and accessories, allowing for tailored solutions that meet specific requirements. Whether you are looking for a unit with enhanced filtration, economizer capabilities, or advanced humidity control, the 48TJ series provides the flexibility needed for diverse applications.

In summary, the Carrier 48TJ016-028 units deliver a compelling combination of energy efficiency, advanced technology, and robust construction, making them an ideal choice for commercial HVAC needs. With their versatile features and customizable options, they stand out as reliable solutions for maintaining comfortable indoor environments.