White Rodgers 50M56-7433 installation instructions System Component

Page 5

 

 

 

 

 

WIRING

 

 

 

TYPICAL SYSTEM WIRING TABLE

50M56

TERMINAL

SYSTEM COMPONENT

TERMINAL

 

TYPE

 

CONNECTION

W

 

 

 

 

low voltage thermostat W terminal (or equivalent)

G

 

Terminal

 

low voltage thermostat G terminal (or equivalent)

R

 

 

low voltage thermostat R terminal (or equivalent)

 

block with

 

Y

 

 

low voltage thermostat Y terminal (or equivalent)

 

captive

 

 

 

 

(2nd wire from Y terminal goes to 24 VAC HOT side of

 

 

screws

 

 

 

 

compressor contactor coil)

 

 

 

 

 

C

 

 

 

 

24 VAC COMMON side of compressor contactor coil

HLO (Pin 1)

 

 

 

 

high limit OUTPUT

MV LO (Pin 2)

 

 

 

 

gas valve first stage

TH (Pin 3)

 

 

 

 

24 VAC transformer (low voltage HIGH side)

PSO (Pin 4)

 

 

 

 

pressure switch OUTPUT

RO OUT (Pin 5)

 

 

 

 

rollout switch OUTPUT

TR (Pin 6)

HLO

PSO

HLI

PSI

24 VAC transformer (low voltage COMMON side)

 

 

 

 

HLI (Pin 7)

LO

OUT

GND

IN

high limit INPUT

 

MV

RO

 

RO

 

GND (Pin 8)

TH

TR

MV

MV

MUST BE RELIABLY GROUNDED TO CHASSIS

MV COM (Pin 9)

COM

HI

gas valve COMMON

 

 

 

 

 

 

PSI (Pin 10)

 

 

 

 

pressure switch INPUT

RO IN (Pin 11)

 

 

 

 

rollout switch INPUT

MV HI (Pin 12)

 

 

 

 

gas valve second stage

IND (Pin 1)

 

 

 

 

inducer HOT side

IGN (Pin 2)

IND

IGN

IND

IGN

ignitor HOT side

 

 

IND-N (Pin 3)

N

N

inducer NEUTRAL side

 

 

 

 

 

 

IGN-N (Pin 4)

 

 

 

 

ignitor NEUTRAL side

COOL

spade terminal

circulator blower COOL SPEED terminal

LO HEAT

spade terminal

circulator blower LO HEAT SPEED terminal

HI HEAT

spade terminal

circulator blower HI HEAT SPEED terminal

PARK (2 terminals)

spade terminal

unused terminals

LINE

spade terminal

input voltage (120 VAC) HOT side

XFMR

spade terminal

24 VAC transformer line voltage HOT side

EAC (optional)

spade terminal

electronic air cleaner HOT side

CIR N

spade terminal

circulator blower NEUTRAL terminal

LINE N

spade terminal

input voltage (120 VAC) NEUTRAL side

XFMR N

spade terminal

24 VAC transformer line voltage NEUTRAL side

EAC N (optional)

spade terminal

electronic air cleaner NEUTRAL side

FS

spade terminal

flame sensor probe

Maximum recommended flame probe wire length is 36 inches.

5

Image 5
Contents Precautions Installation InstructionsContents DescriptionHumidity Range Mounting SpecificationsElectrical Ratings @ 77F 25C Mounting and Wiring InstallationTypical System Wiring Diagram WiringSystem Component Heat Mode Option SwitchesCool Mode Manual FAN on ModeSystem Lockout Features System Lockout and Diagnostic FeaturesDiagnostic Features Fault Code ResetRed LED Flash Error/Condition Comments/Troubleshooting Troubleshooting

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.