TYPE 8B43A-601

WHITE-RODGERS

RELAY-HOT WATER CONTROL

For Use With Line Voltage Primary Control

 

(Suitable for External Zone Valve Load)

 

INSTALLATION INSTRUCTIONS

 

 

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

These Relay-Hot Water Controls combine into a single enclosure: a high limit control, low limit-circulator control, circulator relay, transformer, together with terminals for wiring. They are for use on boilers equipped with tankless domestic coil.

Although these controls are designed for use with a line voltage gas valve or oil burner control, they may also be used with low voltage primary controls.

The internal transformer supplies power for operating the relay coil and systems zoned with motorized water valves.

If in doubt about whether your wiring is millivolt, line, or low voltage, have it inspected by a qualified heating and air conditioning contractor, electrician, or someone famil- iar with basic electricity and wiring.

Do not exceed the specification ratings.

All wiring must conform to local and national electrical codes and ordinances.

This control is a precision instrument, and should be handled carefully. Rough handling or distorting compo- nents could cause the control to malfunction.

PRECAUTIONS

CAUTION

To prevent electrical shock and/or equipment damage, disconnect electric power to system, at main fuse or circuit breaker box, until installation is complete.

WARNING

Do not use on circuits exceeding specified voltages. Higher voltages will damage control and could cause shock or fire hazard.

ELECTRICAL DATA

Input Voltage: 120V.A.C., 60Hz

Circulator Motor: 120V.A.C. 8F.L.A. 48L.R.A.

Burner Circuit: 120V.A.C. 8F.L.A. 48L.R.A.

Ignition Trans.: 3.0 Amps

Burner Motor: 7F.L.A. 42L.R.A. or 125 VA Pilot Duty Motorized Valve: 1.2A. Max.

Room Thermostat:

Set adjustable heat anticipator at 0.25 Amps. For fixed anticipation thermostats, use 0.20 to 0.30 Amp. heater.

SPECIFICATIONS

THERMAL DATA

Range: High Limit - 140° to 240°F (60° to 116°C) Low Limit / Circ. - 100° to 200°F (38° to 94°C)

Differential: High Limit - 10°F Fixed (5.5°C)

Low Limit / Circ. - 10° to 35°F Adj. (5.5° to 19°C) Switch Action: High Limit - Open on rise

Low Limit / Circ. - SPDT

Well: 1/2" or 3/4" Thread Size

If the boiler manufacturer recommends a control location, then follow such recommendations. Otherwise, locate the control as close to the top of the boiler as possible, but not in the same section of the boiler that has fittings for domestic hot water. Never locate the control near a return pipe to the boiler.

INSTALLATION

Install control as follows:

1.Install well securely into proper tapping.

2.Remove control cover. Then loosen the two screws holding well clamp to back of case. NOTE: Loosen until ends of screws are flush with well clamp for easiest assembly.

WHITE-RODGERS DIVISION

 

EMERSON ELECTRIC CO.

 

9797 REAVIS RD., ST. LOUIS, MO. 63123

 

(314) 577-1300, FAX (314) 577-1517

Printed in U.S.A.

 

9999 HWY. 48, MARKHAM, ONT. L3P 3J3

 

(905) 475-4653, FAX (905) 475-4625

 

R

PART NO. 37-5488A

Replaces 37-2935-1

37-9333

9512

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White Rodgers 8B43A-601, 37-5488A specifications Operator Save these instructions for future use, Description, Precautions
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8B43A-601, 37-5488A specifications

The White Rodgers 37-5488A, also known as the 8B43A-601, is a versatile and advanced thermostat designed for efficient climate control in residential and light commercial environments. With its user-friendly interface and cutting-edge technology, this model has become a popular choice for homeowners and HVAC professionals alike.

One of the main features of the 37-5488A thermostat is its compatibility with a variety of heating and cooling systems, including conventional and heat pump systems. This flexibility allows it to be used in diverse settings, accommodating different HVAC configurations. Additionally, the thermostat supports both single and multi-stage heating and cooling, making it suitable for a wide range of applications.

The device is equipped with a digital display that provides clear temperature readings and system status indicators, allowing users to easily monitor and adjust settings as needed. It features an intuitive programming system that enables users to set and modify schedules effortlessly. This functionality helps optimize energy usage and maintain comfortable living conditions at all times, reducing unnecessary energy consumption.

Another significant aspect of the White Rodgers 37-5488A is its advanced algorithms that enhance system efficiency. This thermostat incorporates temperature averaging technology, which ensures accurate readings by factoring in multiple temperature sensors. This results in more precise control of the indoor climate, contributing to increased comfort and energy savings.

Energy efficiency is a key characteristic of the 37-5488A model. It includes various settings that enable users to take advantage of energy-saving modes and programmable options. With the implementation of setback temperatures during non-occupancy hours, homeowners can achieve greater energy efficiency without sacrificing comfort.

Moreover, the device features a user-friendly installation process, with straightforward wiring instructions that make it accessible even for those with limited HVAC experience. The compatibility with common wiring configurations simplifies the replacement of outdated thermostats.

In summary, the White Rodgers 37-5488A, 8B43A-601 model stands out due to its adaptable compatibility, user-friendly interface, advanced temperature sensing technology, energy efficiency features, and easy installation. These attributes combine to make it a reliable and effective thermostat choice, contributing to enhanced comfort and reduced energy costs for users.
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