
            
            <p>Hart & Cooley is a leading manufacturer of residential and commercial ventilation products. With over a century of experience, Hart & Cooley has established itself as a leader in the HVAC industry. Their products are designed to provide superior performance, energy efficiency, and reliability.</p>
            <h2>Wide Range of Hart & Cooley Parts</h2>
            <p>Hart & Cooley offers a wide range of parts for residential and commercial ventilation systems. From grilles, registers, and diffusers to air terminals, flexible ducts, and air control systems, Hart & Cooley has the parts you need for any project. Their parts are designed for easy installation and are available in a variety of styles and sizes.</p>
            <h2>Buy Hart & Cooley Parts with A2zparts</h2>
            <p>If you need to replace or upgrade any part of your ventilation system, A2zparts is the place to shop. We offer a wide selection of Hart & Cooley parts at competitive prices. Whether you're looking for grilles, registers, or air terminals, we have the parts you need to get the job done quickly and easily.</p>
            <p>At A2zparts, we make it easy to find the right part for your project. Simply search by part number or product name to find the exact part you need. Once you've found the part you need, simply add it to your cart and we'll ship it to you as soon as possible.</p>

400CDO4X10

5OA6R

F0529-HCD

6E24

50851-HCD

552903-HCD

400CDO4X12

6EAL

4RHW

010845

5OT6

18018-8TDTR-HCD

F2854-HCD

DARE5-TB22X22W

650H12X16

7RWT




                        The Robertshaw® 780 Series Hot Surface Controls are designed for use on gas fired systems. The system acts on a demand for heat by a switch or thermostat to supply power to the ignition control. On non pre-purge models, the ignitor will be energized immediately and remain on for either of two optional selected ignitor heat-up times: approximately 17 or 34 seconds. For models with the prepurge option, there is a time delay equal to the heat-up time selected before the ignitor is energized. At the end of the ignitor heat-up time, the gas valve is opened supplying gas to the main burner. After several seconds, the ignitor is turned off and the sensor is energized. As long as flame is sensed, the system continues to operate.
Features and Benefits

Reduces truck stock inventory, saving space and moneyEasy-to-install with complete in-depth installation instructionsMolded-in terminal barriers between terminalsModels available for local and remote sense applicationMounting screw provides a positive ground connectionSmall compact size provides no hassle installationMain valve current is 1.5 Amps at 24V AC95% relative humidity noncondensing at 104°F


100-00812-10 Hart & Cooley

100-00812-10

4rea45

92341

4UAA

6E12

Diffuser, evaporative cooler, steel, bright white, 2-way deflection, 10" x 10"

ECHVD10X10

6TDC

Hart & Cooley - Page 106

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