Lennox, Refrigerant Detection System (RDS) Non-Communicating Blower Control Board
SKU: 73072213471

Lennox, Refrigerant Detection System (RDS) Non-Communicating Blower Control Board

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Description

Lennox, Refrigerant Detection System (RDS) Non-Communicating Blower Control BoardOverview: Lennox Low GWP Refrigerant Detection System Non Communicating Control Board ensures safe operation of Lennox residential HVAC systems equipped with R 454B refrigerant. The RDS Non Communicating Control Board connects to the refrigerant detection sensor, the indoor unit, the outdoor unit and the thermostat to control the HVAC system if refrigerant is detected by the sensor. The RDS Non Communicating Control Board functions with standard 24VAC

Overview:

Lennox® Low GWP Refrigerant Detection System Non-Communicating Control Board ensures safe operation of Lennox residential HVAC systems equipped with R-454B refrigerant. The RDS Non-Communicating Control Board connects to the refrigerant detection sensor, the indoor unit, the outdoor unit and the thermostat to control the HVAC system if refrigerant is detected by the sensor. The RDS Non-Communicating Control Board functions with standard 24VAC or Lennox-communicating control interfaces.

Product Features:

• Detects unsafe levels of R-454B refrigerant and prevents refrigerant from reaching the lower flammability limit, should a leak occur in the indoor coil

 • Multicolor LED (light-emitting diode) communicates the state of the RDS Non-Communicating Control Board

• Test/Reset button (to verify the functionality of the RDS Non-Communicating Control Board)

• Composite case with mounting hardware for drywall installation • Supports a maximum of two refrigerant detection sensors

• Supports standard 24VAC control split HVAC equipment (Single-Stage, Two-Stage, Variable Speed, Heat Pump, AC, Gas Furnace, Air Handler); see “Thermostat Compatibility”

• Compliant with UL-60355-2-40 & CSA • Compatible with OEM approved sensor

NOTE: A refrigerant detection system must be installed on an outdoor unit that requires R-454B refrigerant. Some indoor units may already feature a refrigerant detection control functionality and may not require this kit; contact Technical Support for more information.

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SKU: 73072213471

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4.6 ★★★★★
Based on 1743 reviews
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Alan J. Webb
Omaha, US
★★★★★ 5
An Enigma
I became interested in the life of Deng Xiaoping after reading THE TRAGEDY OF LIBERATION by Frank Dikotter and AVOIDING THE FALL by Michael Pettis. Deng is an enigma. He was a key player in the Chinese leadership from the earliest days. He was one of the core revolutionary leaders and one that was heavily involved in directing military campaigns leading to liberation. Afterward, he was the administrator for Sichuan and southwest China and implemented Maoist programs that led to mass starvation and incalculable human suffering. So, how was it possible for Deng Xiaoping to emerge as supreme leader of China, opening up the country to 4 decades of unprecedented growth? Did he learn from the failures of earlier policies? If so, what led to his change in thinking and when did it happen? Or was he always a pragmatist and a loyal follower? And if his thinking did change, how was he not one of the many leaders who were expelled from the Party and sent to prison or executed? It seems highly unlikely that a country that went through the purges, the witch hunts and the upheavals like the Cultural Revolution could have produced a leader of the stature of Deng Xiaoping capable of implementing the policy reforms that have led to China's 4 decades of unprecedented growth. These are the questions that motivated me to tackle this 800-page biography. Ezra Vogel is one of the world's pre-eminent China scholars. His knowledge of the events, people and places as well as the research of other scholars is second to none. He uses this knowledge combined with written accounts and interviews to piece together a comprehensive history of the life of Deng Xiaoping. The account is not strictly chronological. Vogel takes different periods of Deng's life and divides each period into a set of topics covered in separate chapters. This makes the explanation of the events driving each topic easier to follow but it means that the reader may lose track of contemporaneous events discussed in a previous chapter. Unfortunately, Vogel's review of the life of Deng Xiaoping has not fully answered my questions but it is not for lack of trying. Vogel points out early in the book that Deng Xiaoping did not keep a diary or personal writings or confide his inner-most thoughts on government policy with those around him. His speeches were well-organized and thought-out but without written notes. Consequently, we have no window into his thoughts; we have only his actions and events surrounding him to judge his thinking and how it changed over his life. This lack of a personal written record no doubt was a key factor in his survival of the many leadership purges under Mao Tse-tung. Another factor was his complete loyalty to the Party and to Mao. Although Deng was removed from top leadership positions three times in his career, including a 3-year exile during the Cultural Revolution, he was never expelled out of the Party. We also learn that Deng Xiaoping was, above all, a pragmatist and a patriot. His driving motivation was to do whatever necessary to foster China's economic development and re-emergence as a global leader. He was not an ideologue, although he was a skillful politician, sensitive to those who opposed his ideas and careful to find ways to test out policy reforms in isolated cases before moving toward full implementation. Deng Xiaoping is easily one of the most important leaders of the 20th century. We are indeed fortunate to have Ezra Vogel's scholarly and literary talents applied to an English biography of Deng Xiaoping. There is much we can learn from Vogel's account but even more that is left for interpretation reading between the lines.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2014
A
Verified Purchase
Alice Miller
Bozeman, US
★★★★★ 1
Not so much
Format: Hardcover
I can't judge the social science merits of this study. But it's treatment of premodern Chinese history is shoddy and ill informed of the existing literature.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026
M
Verified Purchase
Mateo Buriticá
Charlottesville, US
★★★★★ 5
Una abrebocas de como puede ser un mundo multipolar
Format: Hardcover
Un buen análisis de como puede impactar a los gobiernos, empresas y personas un mundo multipolar con zonas de influencia por poderes regionales. La geopolítica cada vez está más vigente y si no la entendemos, no vamos a poder aprovechar las nuevas oportunidades de esta era.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
B
Verified Purchase
Bill M
Natrona Heights, US
★★★★★ 5
The Future is Now
Format: Hardcover
The author makes a compelling argument that the world is fracturing into two principal trade blocs, the U.S.A bloc and the China bloc. Even cursory review of the daily business news confirms the author's argument is taking shape now. This is an important book for those interested in geopolitics, economics, and even those who are trying to determine where to invest their funds based on changing global dynamics.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
O
Verified Purchase
Oregon Gma
Cuba, US
★★★★★ 5
Cute book and engaging story
Format: Paperback
My grand daughter reads at a 3rd grade reading level, so doesn't want to read the easy readers but loses interest easily with traditional chapter books. This little book was a perfect fit. She's an axolotl fan so the pictures and the story line kept her engaged. There's even a couple of pages of axolotl facts at the end of the book. Well worth adding to her book shelf!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

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