WIRING

 

TYPICAL SYSTEM WIRING DIAGRAM

 

HOT

 

NEUTRAL

(LINE)

120 VAC

(LINE)

 

 

 

 

 

24 VAC CLASS II

 

 

 

 

TRANSFORMER

 

TH

24 VAC

 

TR

 

 

 

 

50M56

 

 

 

 

 

 

COOL

 

 

 

 

 

 

LO HEAT

 

 

 

 

CIRCULATOR

 

HI HEAT

 

 

 

 

 

 

 

 

 

BLOWER

 

LINE

 

 

 

 

 

XFMR

 

 

 

 

 

 

EAC

 

 

 

 

 

 

PARK

 

 

 

 

 

 

PARK

 

 

 

 

 

 

IND-N

 

INDUCER

 

 

 

 

 

 

 

 

 

IND

 

 

 

 

 

 

IGN

 

 

 

 

 

 

IGN-N

 

IGNITOR

 

 

 

[4-Pin Connector]

 

 

 

 

 

CIR N

 

 

 

 

 

 

LINE N

 

 

 

 

 

ELECTRONIC

XFMR N

 

 

 

 

 

EAC N

 

 

 

 

 

AIR CLEANER

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

Y

 

 

 

 

W

 

W

 

 

COMPRESSOR

 

 

 

 

 

 

CONTACTOR

 

G

 

G

 

 

 

 

R

 

R

 

 

 

 

C

 

THERMOSTAT

 

 

 

 

 

 

 

FLAME

FS

 

 

 

 

 

SENSOR

 

 

 

 

 

PROBE

PSI

 

 

PRESSURE SWITCH (N. O.)

 

 

 

 

 

 

 

PSO

 

 

 

 

 

 

HLI

 

 

 

 

 

 

HLO

 

HIGH LIMIT

 

AUX. HIGH

 

RO OUT

 

 

 

GND

 

(N. C.)

 

LIMIT (N. C.)

 

 

ROLLOUT

 

 

1 STAGE

RO IN

 

 

2 STAGE

MV LO

 

(N. C.)

 

GAS

 

 

GAS

MV HI

 

 

 

 

VALVE

 

 

 

 

VALVE

MV COM

 

 

 

 

 

TR

 

 

 

 

 

 

TH

 

 

 

 

 

 

[12-Pin Connector]

 

 

 

 

LEGEND

 

 

HLO

PSO

HLI

PSI

Low Voltage (24 VAC)

 

 

 

 

MV

RO

GND

RO

Line Voltage (120 VAC)

 

 

LO

OUT

IN

 

 

 

 

N. C. = Normally closed switch

IND IGN IND

IGN

TH

TR

MV

MV

N

N

 

 

COM

HI

 

 

 

N. O. = Normally open switch

4-Pin Connector

12-Pin Connector

 

4

Page 4
Image 4
White Rodgers 50M56-7433 installation instructions Typical System Wiring Diagram

50M56-743, 50M56-7433 specifications

The Emerson 50M56-7433 and 50M56-743 represent a series of advanced air conditioning and refrigeration system controls that have gained significant traction in industrial and commercial applications. Known for their versatility and reliability, these devices are designed to meet the demands of modern HVAC systems, offering a combination of innovative technologies and efficient performance.

One of the most notable features of the Emerson 50M56-7433 and 50M56-743 is their state-of-the-art microprocessor-based control systems. These controls provide precise temperature management and operational efficiency, ensuring optimal performance across various conditions. The microprocessor technology allows the devices to adapt to changing environments and provide real-time feedback for enhanced decision-making.

Another key characteristic is the integrated communication capabilities of the 50M56 series. These controls support various communication protocols, enabling seamless integration into existing building management systems. This interoperability facilitates centralized monitoring and control, allowing operators to optimize energy usage and reduce operational costs. Furthermore, remote access features are often included, providing users with the ability to adjust settings and monitor system performance from anywhere.

The Emerson 50M56-7433 and 50M56-743 also feature robust safety and diagnostic functions. Built-in alarms and alerts notify users of any operational issues, helping to prevent potential system failures and downtime. The advanced diagnostic capabilities allow for quick troubleshooting, ensuring that technicians can address problems swiftly, thereby minimizing disruptions.

Energy efficiency is another prominent aspect of these control systems. The Emerson series is designed to optimize energy consumption through intelligent scheduling and adaptive control strategies. These features can lead to significant cost savings over the product's lifespan, making it an attractive option for businesses looking to enhance their sustainability practices.

In conclusion, the Emerson 50M56-7433 and 50M56-743 are cutting-edge HVAC control solutions that combine advanced technology, reliability, and energy efficiency. Their microprocessor-based systems, comprehensive communication features, and robust safety functionalities make them an excellent choice for any commercial or industrial application needing effective climate control. With a focus on user-friendly operation and energy savings, these controls solidify Emerson's position as a leader in the HVAC industry.