White Rodgers 50A65-843 Terminal System Component Type Connection, Typical System Wiring Table

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TYPICAL SYSTEM WIRING TABLE

50A65

TERMINAL

SYSTEM COMPONENT

TERMINAL

TYPE

CONNECTION

W

 

low voltage thermostat W terminal (or equivalent)

G

Terminal

low voltage thermostat G terminal (or equivalent)

R

block with

low voltage thermostat R terminal (or equivalent)

Y

captive

low voltage thermostat Y terminal (or equivalent)

 

screws

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

 

 

compressor contactor coil)

C

 

24 VAC COMMON side of compressor contactor coil

MV (2 terminals)

 

gas valve (both gas solenoids are connected in parallel)

TR

 

24 VAC transformer (low voltage COMMON side)

TH

 

24 VAC transformer (low voltage HIGH side)

FP

12-pin

flame sensor probe*

PS

connector

pressure switch INPUT

HLI

& harness

high limit INPUT

HLO

 

high limit OUTPUT

GND

 

MUST BE RELIABLY GROUNDED TO CHASSIS

RO1

 

rollout switch OUTPUT

RO2

 

rollout switch INPUT

(1 unused terminal)

 

 

 

 

 

IND

4-pin

inducer HOT side

IGN

ignitor HOT side

connector

IND N

inducer NEUTRAL side

& harness

IGN N

ignitor NEUTRAL side

 

 

 

 

COOL

spade terminal

circulator blower COOL SPEED terminal

 

 

 

HEAT

spade terminal

circulator blower HEAT SPEED terminal

 

 

 

PARK (2 terminals)

spade terminal

unused circulator blower 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

 

 

 

HUM (optional)

spade terminal

humidifier 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

 

 

 

HUM N (optional)

spade terminal

humidifier NEUTRAL side

 

 

 

E33

3/16" spade terminal

Auxiliary flame sense

* maximum recommended flame probe wire length is 36 inches.

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Contents Precautions Installation InstructionsContents DescriptionTiming Specifications SpecificationsElectrical Ratings @ 77F 25C Humidity RangeMounting and Wiring InstallationTypical System Wiring Diagram Terminal System Component Type Connection Typical System Wiring TableHeat Mode Operation Option SwitchesCool Mode Manual FAN on ModeDiagnostic Features System Lockout Diagnostic FeaturesSystem Lockout Features For Mounting Hole Locations Mounting Hole Template

50A65-843 specifications

The White Rodgers 50A65-843 is a sophisticated and reliable universal gas valve designed for gas-fired heating systems. It is widely praised for its versatility and performance across a variety of residential and commercial applications. One of its main features is its ability to accommodate both natural gas and propane, allowing homeowners and installers flexibility in fuel choice. The 50A65-843 also supports various types of heating systems, including furnaces, boilers, and other gas appliances.

A key technological highlight of the White Rodgers 50A65-843 is its microprocessor-based control. This advanced technology enables precise regulation of gas flow and enhanced ignition control, ensuring optimal efficiency and safety in operation. The valve is equipped with an integrated flame sensing system, which continuously monitors the flame presence and adjusts gas flow accordingly. This not only improves the unit's reliability but also contributes to energy savings and reduced emissions.

The valve is designed with user-friendly features that simplify installation and maintenance. The standardized dimensions and connection configurations make it compatible with a wide range of existing systems, reducing the need for extensive retrofitting. Additionally, color-coded wiring and clear labeling facilitate quick and easy electrical connections, making it an ideal choice for HVAC technicians.

The 50A65-843 also boasts a high level of durability and robustness. It is built with premium materials that can withstand harsh operating conditions, ensuring a long service life. The unit has been rigorously tested for performance and reliability, meeting or exceeding industry standards.

Moreover, the White Rodgers 50A65-843 includes safety features such as a redundant safety shut-off. This feature is critical in preventing gas leaks and ensuring user safety by shutting off gas flow in the event of a malfunction.

In summary, the White Rodgers 50A65-843 gas valve is a versatile and highly efficient component that is easy to install and maintain. Its advanced control technologies, safety features, and robust construction make it a preferred choice for both professionals and homeowners looking for reliable heating solutions. With its proven performance and adaptability, the 50A65-843 continues to set a high standard in the HVAC industry.