L1 _4

L1 -S

- (NOT BSEDI

L1-9

m

PLI _8

TO MAIN PLI _5

BOX PL1-6

CONTROL /_

PLI-II

PLI*I

PLI _R

PL1-10

(NOT USED)

LEGEND

DCV --Demand Controlled Ventilation

IAQ --Indoor Air Quality

LALS I Low Temperature Compressor

Lookout Switch

OAT IOutdoor_Air Temperature

POT -- Potentiometer

YEL

PNK

-8LU

 

 

 

 

 

 

 

RED

 

 

--

 

ORN

 

 

 

 

 

 

 

 

(FIE£B

 

 

 

EXH

 

 

 

ACCESSORY}

I_ 1

[_

SET

 

 

 

REMOTE MIN

 

 

 

BLK

BV

IOV

 

 

 

POSITION POT

 

 

_E_T[ POT

(ISS_hmT

"

 

[COBOMISER il

 

 

 

BOARD

 

 

 

 

 

 

 

 

 

 

 

DISCHARGE

AIR

 

 

 

 

 

 

SENSOR

(Bk

Ohm)

 

 

POS

 

 

 

BLK_I_EO

-

OPEN

 

 

 

 

 

 

 

 

1 fIELD INSTALLED _IA_

 

 

©

 

I

F .....IAO

SENSOR

 

 

 

2v

IBv

 

 

 

 

 

 

 

I

I

OAT TEWPI

L

 

 

 

I

1

ENTHALPY

SENSOR

_so. N

_

SET

 

I I

_Lu-

.T--

_v

lov

 

I

I

 

 

 

 

 

 

 

RETURN

AIR TEHP!

 

 

 

 

 

1

ENTRALPY

SEICSOR

B

C

 

 

 

 

 

 

/

I

IT

_---

 

 

 

1

l

BLU

 

 

 

 

 

1

 

 

 

 

 

I

l

PNK--_

 

 

 

 

 

I

I FIELD

SPLICE

 

 

 

 

 

 

,_I

aR.

 

 

 

 

 

I I

RED

LALS

 

 

FIELD SPLICE

 

 

ECONOMIZER

MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Potentiometer

Default Settings:

NOTES:

 

 

 

 

 

 

 

 

 

 

 

 

 

Power

Exhaust

Middle

1,

620

ohm,

1

watt 5% resistor

should

be removed

only

when using differential

Minimum Pos.

Fully Closed

 

enthalpy

or dry

bulb.

 

 

 

 

 

 

 

 

 

DCV

Max,

Middle

2,

If a

separate

field-supplied

24

v transformer

is used for

the

IAQ

sensor

power

DCV

Set

Middle

 

supply, it cannot have the secondary of the transformer grounded.

 

 

Enthalpy

C Setting

 

 

 

3,

For

field-installed

remote

minimum

position

POT,

remove

black

wire

jumper

 

 

 

between P and P1 and set control minimum position POT to the minimum position,

Fig. 35 --EconoMi$erlV Wiring

4

3

7

 

 

 

RED

 

 

500 OHM

 

2

 

 

 

 

 

 

 

 

8

 

/

RESISTOR-

"L_

PINK

 

 

 

 

 

 

 

 

6

 

NOTE 1

 

 

 

 

 

 

 

BLUE

 

RUN

 

 

5

 

 

 

OAT

 

 

 

 

BLACK

 

NOTE 2

 

 

1

 

 

 

 

 

J

 

 

10

 

50HJ540573

 

 

 

 

 

 

 

ACTUATOR

 

 

 

 

ASSEMBLY

 

 

11

 

 

 

 

9

 

DIRECT DRIVE

 

 

WHITE

 

ACTUATOR

 

 

12

 

LEGEND

 

 

ECONOMI$ER2

PLUG

 

 

 

 

OAT -- Outdoor Air Temperature Sensor

NOTES:

1.Switch on actuator must be in run position for economizer to operate.

2.50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor.

Fig. 36 --EconoMi$er2 Wiring

24

Page 24
Image 24
Carrier 48TJ016-028 specifications EconoMi$erlV Wiring

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.