TYPICAL SYSTEM WIRING TABLE

50A62

TERMINAL

SYSTEM COMPONENT

TERMINAL

TYPE

CONNECTION

W

captive screw

low voltage thermostat W terminal (or equivalent)

G

captive screw

low voltage thermostat G terminal (or equivalent)

R

captive screw

low voltage thermostat R terminal (or equivalent)

Y

 

low voltage thermostat Y terminal (or equivalent)

 

captive screw

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

 

 

compressor contactor coil

C

captive screw

24 VAC COMMON side of compressor contactor coil

MV (2 terminals)

 

gas valve (both gas solenoids are connected in parallel)

RO1

 

rollout switch OUTPUT

RO2

 

rollout switch INPUT

PS

9-pin

pressure switch INPUT

PS

pressure switch OUTPUT

connector

GND

& harness

MUST BE RELIABLY GROUNDED TO CHASSIS

HL

 

high limit switch input

(unused terminal)

 

 

 

 

 

IND

 

inducer HOT side

IGN

6-pin

ignitor HOT side

GND

inducer NEUTRAL side

connector

GND

& harness

ignitor NEUTRAL side

 

(unused 2 terminals)

 

 

COOL

spade terminal

circulator blower COOL SPEED terminal

 

 

 

HEAT

spade terminal

circulator blower HEAT SPEED terminal

 

 

 

M1

spade terminal

unused circulator blower terminal

 

 

 

M2

spade terminal

unused circulator blower terminal

 

 

 

FAN

spade terminal

circulator blower FAN SPEED terminal

 

 

 

LINE

spade terminal

input voltage (120 VAC) HOT side

 

 

 

XFMR

spade terminal

24 VAC transformer line voltage 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

 

 

 

HUM

spade terminal

humidifier HOT side

 

 

 

EAC (optional)

spade terminal

electronic air cleaner HOT side

 

 

 

HUM N

spade terminal

humidifier NEUTRAL side

 

 

 

EAC N (optional)

spade terminal

electronic air cleaner NEUTRAL side

 

 

 

TR

spade terminal

24 VAC transformer (low voltage COMMON side)

 

 

 

TH

spade terminal

24 VAC transformer (low voltage HIGH side)

 

 

 

FP

spade terminal

flame sensor port*

 

 

 

* maximum recommended flame probe wire length is 36 inches.

5

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White Rodgers 50A62-820 installation instructions Terminal System Component Type Connection, Typical System Wiring Table

50A62-820 specifications

The White Rodgers 50A62-820 is a highly regarded, multi-stage thermostat designed to deliver precision comfort control in various HVAC systems. With its advanced features and reliable performance, it has become a popular choice among both homeowners and HVAC professionals.

One of the primary features of the 50A62-820 is its compatibility with a wide range of heating and cooling systems. This includes gas, oil, and electric furnaces, as well as heat pumps and air conditioning systems. Its versatility makes it suitable for many applications, ensuring that users can maintain optimal climate control in their homes or facilities.

The thermostat utilizes a user-friendly interface that simplifies operation. Its digital display clearly shows the current temperature and system settings, enabling easy monitoring and adjustments. This interface often includes intuitive buttons or touch screen functionality, allowing users to navigate through settings with ease.

A standout characteristic of the White Rodgers 50A62-820 is its programmable capabilities. Users can easily schedule temperature settings for different times of the day or week, which can lead to significant energy savings. For instance, homeowners can program the thermostat to lower temperatures during the night or when the house is unoccupied, contributing to enhanced energy efficiency without sacrificing comfort.

Another technological advantage of the 50A62-820 is its ability to manage multi-stage heating and cooling systems. This allows the thermostat to regulate the temperature more effectively, responding to changes in indoor and outdoor conditions with precision. Multi-stage systems can help to maintain consistent temperatures and improve overall energy efficiency.

The 50A62-820 is also designed with advanced safety features. It includes built-in temperature limit settings, helping to prevent overheating and ensuring that the HVAC system operates within safe parameters. Additionally, many models offer diagnostic capabilities, allowing users to identify issues and perform maintenance more efficiently.

Durability is a notable characteristic of the White Rodgers 50A62-820. Its construction is designed to withstand a variety of environmental conditions, making it a reliable choice for both residential and commercial installations.

In conclusion, the White Rodgers 50A62-820 thermostat is a sophisticated, versatile option for managing climate control in various environments. With its programmable features, compatibility with multi-stage systems, user-friendly design, and advanced safety technologies, it provides homeowners with a practical solution for enhancing comfort while promoting energy efficiency.