一、听到“辐射”两个字，你是不是心里咯噔一下？
“辐射？”
“空调还有辐射？”
“那对人体有没有伤害？”
这是很多人第一次听说ABC空调系统采用“地板辐射供冷/供暖”时，脱口而出的三个问题。
我完全理解这种担忧。因为“辐射”这个词，在日常生活中已经被严重“污名化”了。我们想到的是核电站泄漏、X光检查、手机基站、微波炉……这些确实和“辐射”有关，但此“辐射”非彼“辐射”。
今天，我们就一次性把这个问题说清楚：ABC空调的冷辐射到底是什么？对人体有没有害？
看完你就明白，它不仅无害，反而是目前最接近“自然舒适”的温控方式。
二、一个致命的误会：热辐射 ≠ 核辐射
在物理学中，“辐射”指的是能量以电磁波或粒子的形式向外传播。它有很多种：
- 电离辐射：X射线、γ射线、核辐射。能量高，能破坏细胞DNA，确实有害。
- 非电离辐射：无线电波、微波、红外线、可见光、紫外线（部分）。能量低，不会破坏分子结构。
ABC空调的冷辐射，属于“热辐射”，确切地说是红外辐射。红外辐射是什么？就是你晒太阳时感觉到的那种“暖意”，或者站在冰冷的墙壁旁感觉到的那种“凉意”。
太阳光中的红外线、火炉的热量、人体的体温散发——这些都是热辐射。你每天都在接收，也在向外辐射。热辐射是自然界最普遍的能量传递方式之一，对人体完全无害。
事实上，如果没有热辐射，地球上的生命根本无法存在。太阳的热量就是通过辐射穿过1.5亿公里的真空传到地球的。你此刻坐在房间里，你的皮肤正在向四周的墙壁、地板、家具辐射红外线，同时也在接收它们辐射回来的热量。这就是为什么冬天你靠近一扇冰冷的玻璃窗会觉得冷——不是因为窗户在“发射有害射线”，而是你的身体热量被窗户吸走了。
所以，请放心：ABC空调的“冷辐射”，跟核辐射、X光辐射没有任何关系。
三、什么是“冷辐射”？明明有温度，怎么会“冷”？
这个概念确实容易让人困惑。
“冷辐射”并不是说地板或天花板在发射“冷气”或“有害冷射线”。它的原理很简单：
任何物体，只要温度高于绝对零度（-273℃），就会向外辐射红外线。温度越高，辐射的能量越强。
- 冬天，地板温度高于室温时，地板向人体辐射热量 → 你感觉“温暖”。
- 夏天，地板温度低于室温时，人体向地板辐射热量 → 你感觉“凉爽”。
“冷辐射”其实是一种“净热量流失”的体感。当你站在一个温度比你低的表面附近，你的身体会向那个表面辐射热量，你会感觉“凉凉的”。这不是什么神秘的力量，而是你身体的热量在自然流动。
ABC空调的夏季制冷模式：地板下的PE管中流过18~20℃的冷水，地板表面温度降到约22~24℃。你的身体（表面温度约32~34℃）比地板热，于是你的红外辐射被地板吸收，你感觉“清凉”。整个过程没有风吹，没有噪音，没有任何有害物质。
这和你夏天走进一个阴凉的岩洞，感觉到的那种自然凉爽，原理一模一样。
四、传统空调的“冷”是吹出来的，ABC空调的“冷”是“吸”出来的
为了更直观地理解，我们做一个对比：
传统冷暖空调（对流制冷）
- 原理：压缩机把冷媒压缩、膨胀，制造低温；风扇把冷空气吹进房间。
- 体感：冷风直吹皮肤，强制带走热量和水分。风越大，越冷，但同时也越干燥、越刺激。
- 问题：风感强，容易引起肌肉僵硬、关节酸痛、皮肤干燥、呼吸道不适——“空调病”的根源。
- 温度分布：冷空气密度大，下沉，造成“头热脚冷”或“头冷脚更冷”的不均匀。
ABC空调系统（辐射供冷）
- 原理：地板下的冷水管网把地板表面温度降低，人体与地板之间发生热辐射交换，人体热量被地板“吸走”。
- 体感：没有风，没有噪音，只有一种从四面八方均匀而来的清凉感。就像在树荫下、在山洞里。
- 优势：无风感，不干燥，不会引起关节不适。温度均匀，从脚到头温差极小。
- 额外好处：因为地板是大面积的辐射面，不需要很低的温度就能达到很好的降温效果。地板表面22~24℃就够了，而传统空调出风口温度可能低至7~12℃——巨大的温差是“空调病”的重要原因。
所以，ABC空调的“冷辐射”不是“攻击”你的身体，而是温柔地把你多余的热量“接过去”。就像夏天你把手放在一块凉凉的玉石上，舒服极了。
五、辐射供冷/供暖：人类几千年的智慧
其实，辐射采暖/供冷并不是什么新奇技术。人类几千年前就在用了：
- 北方的火墙、火炕：热量从地面和墙壁辐射出来，温暖全身。这是辐射采暖。
- 南方的地窖、岩洞：夏天进去，凉飕飕的。这是辐射供冷。
- 现代建筑中的“冷梁”：在天花板安装冷水盘管，靠辐射和自然对流降温，已经在高端写字楼用了很多年。
ABC空调系统只是把这种古老而自然的原理，用现代热泵和空调伴侣技术做了系统化、智能化、家用化的升级。它让辐射供冷/供暖不再依赖天然条件，而是可以主动控制、精准调节。
所以，担心辐射有害，就像担心阳光晒伤一样——过强的紫外线确实伤皮肤，但温暖的阳光是生命之源。ABC空调的辐射强度，比冬天晒太阳弱得多，比夏天站在马路上弱得多，完全在人体舒适范围内。
六、权威怎么说？科学研究证实辐射供冷安全且有益
如果你还不放心，我们看科学研究和行业标准。
- 国际标准：ISO 7730《热环境的人类工效学》明确指出，辐射供暖/供冷系统是提供热舒适的有效方式，其辐射强度在人体可接受范围内，无健康风险。
- 医学角度：辐射供冷不产生强制对流，不会引起呼吸道黏膜干燥，不会诱发过敏性鼻炎或哮喘。相反，传统空调的强风会吹起尘螨、细菌，而ABC空调几乎无风，空气质量更好。
- 实际应用：欧洲、日本的大量住宅和办公楼采用辐射供冷/供暖系统（如毛细管网、冷吊顶），已有数十年历史，从未有过“辐射有害”的报告。相反，用户普遍反映舒适度远高于传统空调。
- 中国标准：《民用建筑供暖通风与空气调节设计规范》（GB 50736）对辐射供暖/供冷系统的设计参数有明确规定，确保表面温度不会过低或过高，避免人体不适。
所以，ABC空调的冷辐射，在科学上和工程上都是安全的。
七、为什么有人会感觉“辐射冷”不舒服？
极少数人在刚接触辐射供冷时，可能会觉得“有点凉”。这通常是因为：
- 心理因素：对“辐射”一词的恐惧导致心理暗示。
- 初次适应：习惯了传统空调强风的人，突然进入无风环境，可能觉得“不够冷”或“怪怪的”。但适应几天后，绝大多数人会爱上这种无风清凉。
- 设计不当：如果地板温度过低（低于20℃），确实可能引起脚部不适。ABC空调的系统设计会自动控制水温，避免过冷。而且ABC空调有室内机辅助，可以快速降温后再切换到辐射模式，体验更好。
ABC空调的智能控制系统会实时监测地板温度和室温，确保表面温度始终在舒适区间（夏季22~24℃，冬季26~29℃）。你不会感觉到“冰冷”，只会感觉到“凉爽”。
八、冷辐射 vs. 热辐射：一体两面，全年舒适
ABC空调的奇妙之处在于，它既能“冷辐射”，也能“热辐射”。
- 冬季：地板中的热水把地板加热到26~29℃，地板向人体辐射热量。你光脚踩上去，暖意从脚底升上来，头顶却不会过热。这就是“脚暖头凉”的理想状态。
- 夏季：地板中的冷水把地板降温到22~24℃，人体向地板辐射热量。你光脚踩上去，清凉从脚底传来，但不会有冷风直吹。
同一个系统，同一套地板管网，同一个空调伴侣，只是通过四通阀切换冷媒流向，就实现了冬夏两季的无缝切换。这就是“空调连地暖”的真正含义。
而且，因为地板是巨大的储能体，系统可以利用夜间低谷电价储热/储冷，白天释放，既省钱又舒适。
九、别再让“辐射”吓跑你了
我知道，一个新的技术概念出来，总会有各种疑问。尤其是“辐射”这个被妖魔化的词，更容易让人望而却步。
但请你记住三个关键点：
- ABC空调的“辐射”是热辐射（红外线），不是核辐射，也不是电磁辐射。它和你晒太阳、烤火、站在暖气片旁是一样的物理现象。
- 热辐射对人体无害，反而是最自然、最舒适的传热方式。人类几千年的居住经验已经证明了这一点。
- ABC空调通过智能控制，确保辐射表面温度在安全舒适的范围内。你不会被“冻着”也不会被“烤着”。
如果你还是担心，不妨亲自体验一下。找一个安装了ABC空调系统的朋友家，或者去展厅感受一下。光脚站在地板上，关掉所有风机，只让地板辐射运行。你会惊讶地发现：原来夏天可以这么凉快，而且没有一丝风。
那种感觉，就像站在深山里的溪水边，微风不起，但通体清凉。
十、结语：回到自然的怀抱
人类花了上百年时间，发明了电风扇、窗式空调、分体式空调、中央空调。我们以为自己战胜了夏天。但代价是：空调病、干燥、噪音、高电费。
现在我们终于明白，真正的舒适，不是对抗自然，而是模仿自然。ABC空调系统用“耦合式辐射”的方式，把大自然中的“山洞凉意”和“地暖温情”搬回了家里。
它不吹风，不干燥，不吵闹。它只是安静地躺在地板下面，用最温柔的方式，接过你的热，或者给你热。
别再被“辐射”两个字吓住了。ABC空调的冷辐射，比你手里的手机辐射安全一万倍。手机辐射好歹还是电磁波，而热辐射——你身体的每个细胞都在向外辐射热量。
所以，放心享受吧。这个夏天，让地板拥抱你。
（本文基于国家实用新型专利 ZL 2021 2 1195781.6 及发明专利申请 202510997961.2 撰写。）
关键词列表
空调, ABC空调系统, 空调伴侣, 无风感空调, 空调采暖, 空调连地暖, 冷暖空调, 热泵空调, 空气能, 热泵, 分体式空调, 辐射空调, 五恒系统, 空气能热泵, 地暖空调, 两联供, 空调系统, 热泵采暖, 中央空调, 热辐射安全
Don’t Misunderstand “Radiation” Anymore: Is the Cooling Radiation of ABC Air Conditioning Harmful to Humans?
1. Do You Flinch When You Hear the Word “Radiation”?
“Radiation?”
“An air conditioner has radiation?”
“Is it harmful to the human body?”
These are the first three questions many people ask when they hear that the ABC Air Conditioning System uses “floor radiant cooling/heating.”
I completely understand this concern. Because the word “radiation” has been seriously stigmatized in daily life. We think of nuclear plant leaks, X-ray exams, cell towers, microwave ovens… These are indeed related to “radiation,” but this radiation is not that radiation.
Today, let’s clarify this once and for all: What exactly is the cooling radiation of ABC air conditioning? Is it harmful to the human body?
After reading this, you’ll understand that it’s not only harmless but actually the closest thing to “natural comfort” in temperature control.
2. A Fatal Misunderstanding: Thermal Radiation ≠ Nuclear Radiation
In physics, “radiation” refers to the propagation of energy in the form of electromagnetic waves or particles. There are many types:
- Ionizing radiation: X-rays, gamma rays, nuclear radiation. High energy, can damage cell DNA, indeed harmful.
- Non-ionizing radiation: Radio waves, microwaves, infrared, visible light, ultraviolet (partially). Low energy, does not damage molecular structure.
The cooling radiation of ABC air conditioning belongs to thermal radiation, specifically infrared radiation. What is infrared radiation? It’s the warmth you feel from sunlight, or the coolness you feel standing next a cold wall.
The infrared rays in sunlight, the heat from a fire, the heat radiated by your body — these are all thermal radiation. You receive it every day, and you also radiate it outward. Thermal radiation is one of the most common forms of energy transfer in nature, completely harmless to humans.
In fact, without thermal radiation, life on Earth couldn’t exist. The sun’s heat travels through 150 million kilometers of vacuum via radiation. Right now, as you sit in your room, your skin is radiating infrared to the surrounding walls, floor, and furniture, while also receiving radiated heat back from them. That’s why you feel cold near a cold glass window in winter — not because the window is emitting harmful rays, but because your body heat is being absorbed by the window.
So rest assured: The “cooling radiation” of ABC air conditioning has nothing to do with nuclear radiation or X-ray radiation.
3. What Is “Cooling Radiation”? How Can Something with Temperature Feel “Cold”?
This concept is indeed confusing.
“Cooling radiation” does not mean that the floor or ceiling emits “cold air” or “harmful cold rays.” The principle is simple:
Any object with a temperature above absolute zero (-273°C) radiates infrared. The higher the temperature, the stronger the radiated energy.
- In winter, when the floor temperature is higher than room temperature, the floor radiates heat to your body → you feel “warm.”
- In summer, when the floor temperature is lower than room temperature, your body radiates heat to the floor → you feel “cool.”
“Cooling radiation” is actually a sensation of net heat loss. When you stand near a surface cooler than you, your body radiates heat to that surface, and you feel “cool.” This is not some mysterious force; it’s simply your body heat flowing naturally.
ABC’s summer cooling mode: 18–20°C cold water flows through underfloor PE pipes, lowering the floor surface temperature to about 22–24°C. Your body (surface temperature ~32–34°C) is warmer than the floor, so your infrared radiation is absorbed by the floor, and you feel “cool.” No drafts, no noise, no harmful substances.
This is exactly the same principle as walking into a cool cave on a hot summer day.
4. Traditional AC’s “Cold” Is Blown; ABC’s “Cold” Is “Absorbed”
For a more intuitive understanding, let’s compare:
Traditional heating and cooling air conditioner (convective cooling)
- Principle: The compressor compresses and expands refrigerant to create low temperature; a fan blows cold air into the room.
- Sensation: Cold air directly hits your skin, forcibly removing heat and moisture. The stronger the wind, the colder, but also the drier and more irritating.
- Problems: Strong draft, easily causing muscle stiffness, joint pain, dry skin, respiratory discomfort — the root of “air conditioner sickness.”
- Temperature distribution: Cold air is dense and sinks, creating uneven “hot head, cold feet” or “cold head, even colder feet.”
ABC Air Conditioning System (radiant cooling)
- Principle: The underfloor chilled water network lowers the floor surface temperature; your body exchanges heat with the floor via radiation. Your body heat is “absorbed” by the floor.
- Sensation: No draft, no noise, only a gentle, all-around coolness. Like under a tree shade or in a cave.
- Advantages: Draft-free, non-drying, no joint discomfort. Even temperature distribution with minimal difference from foot to head.
- Additional benefit: Because the floor is a large radiant surface, it doesn’t need to be very cold to achieve good cooling. Floor surface at 22–24°C is enough, whereas traditional AC supply air temperature can be as low as 7–12°C — that huge temperature difference is a major cause of “air conditioner sickness.”
So, ABC’s cooling radiation does not “attack” your body; it gently “receives” your excess heat. Just like putting your hand on a cool jade stone in summer — extremely pleasant.
5. Radiant Cooling/Heating: Thousands of Years of Human Wisdom
In fact, radiant heating/cooling is not a new technology. Humans have used it for thousands of years:
- Northern fire walls and heated kangs (beds): Heat radiates from the floor and walls, warming the whole body. That’s radiant heating.
- Southern cellars and caves: Entering them in summer feels cool. That’s radiant cooling.
- Modern “chilled beams”: Cold water coils in ceilings providing cooling by radiation and natural convection, used in high-end office buildings for many years.
The ABC Air Conditioning System simply upgrades this ancient and natural principle with modern heat pump and Air Conditioner Buddy technology, making it systematic, intelligent, and suitable for homes. It allows radiant cooling/heating to be actively controlled and precisely adjusted, no longer dependent on natural conditions.
So worrying about radiation harm is like worrying about sunburn — excessively strong UV is indeed harmful to skin, but gentle sunlight is the source of life. The radiation intensity of ABC is much weaker than winter sunlight, much weaker than standing on a summer road, and well within the human comfort range.
6. What Do Authorities Say? Scientific Research Confirms Radiant Cooling Is Safe and Beneficial
If you’re still not convinced, let’s look at scientific research and industry standards.
- International standard: ISO 7730 “Ergonomics of the thermal environment” clearly states that radiant heating/cooling systems are effective ways to provide thermal comfort. Their radiation intensity is within acceptable limits for humans and poses no health risks.
- Medical perspective: Radiant cooling does not generate forced convection, does not dry respiratory mucous membranes, and does not trigger allergic rhinitis or asthma. In contrast, traditional air conditioners can blow dust mites and bacteria, while ABC has almost no airflow, resulting in better air quality.
- Practical applications: Many residential and office buildings in Europe and Japan use radiant cooling/heating systems (e.g., capillary tube mats, chilled ceilings) with decades of history. There have never been reports of “radiation harm.” On the contrary, users consistently report far superior comfort compared to traditional air conditioners.
- Chinese standards: The “Design Code for Heating, Ventilation and Air Conditioning of Civil Buildings” (GB 50736) has clear specifications for radiant system design parameters, ensuring surface temperatures are not too low or too high to avoid discomfort.
Thus, the cooling radiation of ABC air conditioning is scientifically and engineeringly safe.
7. Why Do Some People Feel Uncomfortable with “Radiant Cold”?
A very small number of people, when first exposed to radiant cooling, may feel “a bit cool.” This is usually due to:
- Psychological factors: Fear triggered by the word “radiation” leading to a nocebo effect.
- Initial adaptation: People accustomed to the strong drafts of traditional air conditioners may find a draft-free environment “not cold enough” or “strange.” But after a few days of adaptation, the vast majority fall in love with the draft-free coolness.
- Improper design: If the floor temperature is too low (below 20°C), it could indeed cause foot discomfort. ABC’s system design automatically controls water temperature to avoid overcooling. Moreover, ABC has an indoor unit for auxiliary cooling, allowing rapid initial cooling before switching to radiant mode for a better experience.
ABC’s intelligent control system monitors floor and room temperatures in real time, ensuring surface temperatures always stay within the comfort range (summer 22–24°C, winter 26–29°C). You won’t feel “cold” — only “cool.”
8. Cooling Radiation vs. Heating Radiation: Two Sides of the Same Coin, Year-Round Comfort
The beauty of ABC is that it provides both “cooling radiation” and “heating radiation.”
- Winter: Hot water in the floor pipes heats the floor to 26–29°C, and the floor radiates heat to your body. You walk barefoot, warmth rises from your feet, but your head doesn’t overheat. This is the ideal “warm feet, cool head” state.
- Summer: Cold water in the floor pipes cools the floor to 22–24°C, and your body radiates heat to the floor. You walk barefoot, coolness rises from your feet, but no cold drafts.
One system, the same underfloor pipe network, the same Air Conditioner Buddy — just a four-way valve switching the refrigerant flow direction — achieves seamless seasonal switching. This is the true meaning of “air conditioning connected to underfloor heating.”
And because the floor is a massive thermal battery, the system can use off-peak nighttime electricity to store heat/cool and release it during the day — saving money while providing comfort.
9. Don’t Let “Radiation” Scare You Away
I know that any new technology raises questions. Especially the stigmatized word “radiation” makes people hesitate.
But please remember three key points:
- ABC’s “radiation” is thermal radiation (infrared), not nuclear radiation or electromagnetic radiation. It’s the same physical phenomenon as sunbathing, sitting by a fire, or standing near a radiator.
- Thermal radiation is harmless to humans and is actually the most natural and comfortable heat transfer method. Thousands of years of human living experience prove this.
- ABC’s intelligent control ensures radiant surface temperatures stay within safe, comfortable ranges. You won’t be “frozen” or “roasted.”
If you’re still concerned, try experiencing it yourself. Visit a friend’s home with an ABC Air Conditioning System or go to a showroom. Stand barefoot on the floor, turn off all fans, and let only floor radiation run. You’ll be amazed: summer can be so cool without a single draft.
It feels like standing by a mountain stream on a windless day — completely cool from head to toe.
10. Conclusion: Return to Nature’s Embrace
Humans spent over a hundred years inventing electric fans, window air conditioners, split-type air conditioners, and central air conditioning. We thought we had conquered summer. But the cost was: air conditioner sickness, dryness, noise, high electricity bills.
Now we finally understand that true comfort is not fighting nature, but imitating nature. The ABC Air Conditioning System uses “coupled radiation” to bring the “coolness of caves” and “warmth of heated floors” back into our homes.
It doesn’t blow air, doesn’t dry out, doesn’t make noise. It simply lies quietly under the floor, gently receiving your heat or giving you heat.
Don’t be scared by the word “radiation.” The cooling radiation of ABC is ten thousand times safer than the radiation from your cell phone. Cell phone radiation is at least electromagnetic waves — but thermal radiation? Every cell in your body is radiating heat right now.
So enjoy it with peace of mind. Let the floor embrace you this summer.
(This article is based on National Utility Model Patent ZL 2021 2 1195781.6 and Invention Patent Application 202510997961.2.)
Keyword List
air conditioner, ABC air conditioning system, air conditioner buddy, draft-free air conditioner, air conditioning heating, air conditioning connected to underfloor heating, heating and cooling air conditioner, heat pump air conditioner, air source energy, heat pump, split-type air conditioner, radiant air conditioning, five-constant system, air source heat pump, underfloor heating air conditioner, two-in-one system, air conditioning system, heat pump heating, central air conditioning, thermal radiation safety
