Main Piping Connections, Installation | White Rodgers 36C74 specs

MAIN PIPING CONNECTIONS

NOTE

All piping must comply with local codes, ordinances, and/or national fuel gas codes.

1.Turn off electrical power to the system at the fuse box or circuit breaker. Also turn off the main gas supply.

2.If replacing an existing valve, disconnect all plumbing and electrical connections from the old control.

3.The valve may be installed in any position except upside down. The arrow on the bottom plate indi- cates the direction of gas flow through the valve.

4.You should use new pipe that is properly chamfered, reamed, and free of burrs and chips. If you are using old pipe, be sure it is clean and free of rust, scale, burrs, chips, and old pipe joint compound.

5.Apply pipe joint compound (pipe dope) or teflon tape that is approved for all gases, only to the male threads of the pipe joints. DO NOT apply com- pound or teflon tape to the first two threads (see fig. 2 for typical piping connections).

6.If you are using a vise or open-end wrench to hold the valve while installing piping, do not tighten exces- sively, as this may damage the valve.

7.See SYSTEM WIRING when making electrical con- nections. After all gas and electrical connections are completed, turn gas on and check for gas leaks with leak detection solution or soap suds. Bubbles forming indicate a leak. SHUT OFF GAS AND FIX ALL

LEAKS IMMEDIATELY.

INSTALLATION

Drop

Horizontal

NOTE:

Riser

Gas Valve

Always Include

3 in.

A Drip Leg In Piping

minimum

Drop

Tubing Gas

Gas Valve

Supply

Riser

Horizontal

Gas Valve

3 in.

minimum

Piped Gas

Supply

Figure 2. Typical gas valve piping

PILOT GAS CONNECTION

The valve is shipped with the pilot outlet plugged. For installations requiring pilot gas, remove the plug and use the fitting packed separately with the control.

Install fitting into pilot gas outlet (see fig. 3), turning until finger-tight. Insert clean, deburred tubing all the way through the fitting. While holding the tubing securely, slowly tighten fitting until you feel a slight “give”. Tighten the fitting an additional 11⁄2 turns.

Pilot Gas	PRESS
Outlet	PILOT
Outlet
	TAP
Gas Outlet

Figure 3. Gas valve side view

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.