WHITE-RODGERS

Type 36C74

Combination Gas Valve

 

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

The 36C74 Gas Valve is for use on systems providing automatic ignition of the pilot and/or main burners and incorporates the following features: pilot/redundant sole- noid valve, main valve, integral pressure regulator and male spade terminals for point-to-point wiring.

This gas valve is also equipped with a step-opening feature to provide for quieter main burner ignition. The valve opens partially until main burner flame is estab- lished, then the valve opens to full operating pressure.

ON

OFF

Electrical Rating:

24 VAC (30 Volts max. Voltage), 60 Hz.

Types of Gases: Natural or LP Gas

Pressure Rating: 14” W.C. (12 PSI)

Ambient Temperature: -40°to 175°F (-40°to 79°C)

Regulator Adjustment Range:

Natural Gas: 2.5” to 5.0” W.C. (Full flow)

LP Gas: 7.5” to 12.0” W.C. (Full flow) (Step pressure not adjustable)

SPECIFICATIONS

PIPE SIZES/CAPACITIES

 

Capacity (BTU/hr) at

 

1" pressure drop across valve

 

Nat. Gas

LP Gas

Pipe Size

(1000 BTU/cu. ft.,

(2500 BTU/cu. ft.,

(inches)

64 Sp. Gr.)

1.53 Sp. Gr.)

1/2" x 3/8"

100,000

162,000

1/2" x 1/2"

230,000

372,600

1/2" x 3/4"

230,000

372,600

3/4" x 3/4"

280,000

453,600

Upright, 90°from upright or vertical

CONTENTS

 

Description

1

Specifications

1

Precautions

2

Installation

3

Main Piping Connection

 

Pilot Gas Connection

 

System Wiring

 

Adjustment

4

UPRIGHT

LEFT OR RIGHT

INLET BOSS UP OR DOWN

ON

OFF

Pilot Flame Adjustment

Pressure Regulator Adjustment

Pilot Lighting Instructions and Precautions ........ 5

NOTE: Control shown may not be identical to replacement control.

Figure 1. Mounting Positions

WHITE-RODGERS DIVISION

 

PART NO. 37-5868A

EMERSON ELECTRIC CO.

Printed in U.S.A.

9797 REAVIS ROAD

Replaces 37-5153A

 

ST. LOUIS, MISSOURI 63123-5398

 

9732

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White Rodgers 36C74 installation instructions Description, Specifications

36C74 specifications

The White Rodgers 36C74 is a robust and versatile thermostat designed primarily for managing heating and cooling systems in residential and commercial applications. Known for its reliability and ease of use, the 36C74 is widely appreciated by both homeowners and HVAC professionals alike.

One of its standout features is its compatibility with a diverse range of heating and cooling systems, including gas, oil, and electric furnaces, as well as heat pumps and central air conditioning systems. This flexibility allows users to integrate the thermostat seamlessly into their existing setups without any additional hassle.

The 36C74 boasts a user-friendly interface that includes a large, clear display, making it easy to read and operate. The intuitive controls enable users to set the desired temperature effortlessly. This management of indoor climate is made even more convenient with the programmable option, allowing users to schedule temperatures based on their daily routines.

In terms of technology, the White Rodgers 36C74 is equipped with advanced temperature sensing capabilities that ensure precision in maintaining the desired indoor climate. Its adaptive recovery technology allows the thermostat to learn how long it takes to reach a set temperature, adjusting its heating or cooling cycles accordingly. This feature not only enhances comfort but also contributes to energy savings by preventing unnecessary operation of HVAC systems.

Another notable characteristic of the thermostat is its 7-day programmability. Users can easily create customized schedules for each day of the week, providing optimal comfort when supplemented with cost savings on energy bills. Additionally, the thermostat includes a vacation mode, which temporarily adjusts the home’s temperature settings during extended periods away, further optimizing energy efficiency.

The 36C74 also supports easy installation and setup, with labeled wiring terminals to help eliminate confusion during the installation process. Moreover, the thermostat is designed to work with a wide variety of power sources, adding to its versatility.

With a combination of advanced technology, energy efficiency, and user-friendly design, the White Rodgers 36C74 thermostat stands out as a reliable choice for effective climate control, making it a popular option for enhancing home comfort. Whether you are looking to optimize your heating or cooling systems, the 36C74 provides a perfect blend of capabilities to meet your needs.