"That's not surprising."
Miss Miyano frowned and said:
"In addition to providing the body with the nutrients it needs, food also helps keep the body warm. Almost 50% of the energy in the human body is distributed on the surface of the skin in the form of heat energy. When the body's energy is insufficient, the energy required to maintain body temperature will be reduced, and people will naturally feel cold."
"On the other hand, after eating, people have abundant energy in their bodies, their skin becomes warmer, and the feeling of coldness naturally decreases."
"It's probably the central air conditioning that's having problems again."
After finishing his compressed biscuits and solving the dinner problem, Sakaki Makoto yawned and asked:
"Ms. Mary, when you were following Akutagawa Mari just now, did you notice anything unusual?"
"If I had, I would have said it long ago."
Akai Mary said calmly:
"The main box of the central air conditioner is outside the bathroom. The temperature was just set too high and has long been adjusted back to normal."
"The values are normal, but the temperature is abnormal. Never mind. It doesn't matter as long as they are not cold."
No matter what, this is someone else's home. If the owner thinks the temperature is suitable, what else can you say?
Once the criminal is caught, Sakaki Makoto and his group will leave, so there's no need to make comments or give any suggestions.
Compared to these trivial matters, the most important thing is to find the criminal first.
While Ogawa Yoshio was eating, Sakaki Makoto took Hongshu out of the restaurant and returned to the bedroom upstairs. He opened the closet, picked a corner that was neither too wide nor too narrow for Hongshu, and covered it with clothes. The first step of the plan was completed.
"You guys better hurry up."
Hongshu sat in the closet, holding a bottle of mineral water in his arms, and said nervously:
"I don't want to spend the whole night in here."
"Okay, we'll make quick work of it."
Nodding, Sakaki Makoto stuffed a detective badge into Hongshu's hand:
"Use this to contact me if anything happens."
"Um!"
When Makoto Sakaki returned to the restaurant, he found that the place was empty. Dinner time was over and the members of the Ogawa family had all returned to their rooms to rest. Yoshio Ogawa was also nowhere to be seen. Only Miss Miyano and Kidd were left sitting at the table, apparently waiting for him.
"Where are the people?"
"I went to the bathroom."
Miss Miyano said:
"Ogawa Yoshio just came back from the hospital. The old lady said she wanted to wash away the bad luck he brought from the hospital, so she asked Ogawa Masaki to help him take a bath. Akai Mari and the others are following, so don't worry."
Hearing that Akai Mary was following, Sakaki Makoto finally felt relieved. Besides, the criminal would definitely choose a time when no one was around to act, and it was impossible for him to kill Ogawa Yoshio in public, otherwise he would be walking into a trap!
"Has everything been arranged with Hongshu?"
"It's all right now. I gave him Conan's spare detective badge, so we can get the news first if anything happens."
Half an hour passed in a flash, and after Ogawa Yoshio finished his shower, it was already 9:30 in the evening. Ogawa Masaki helped him back to his room to rest. The old woman sat with him for a while, and only closed the door quietly after he fell asleep.
"The rest is up to you guys."
The old woman said to Sakaki Makoto and the others standing outside the door:
"We must catch the criminal!"
"Leave it to us."
After watching the old woman leave, Sakaki took out his detective badge and tested the communication status in advance:
"Hello? Can Hongshu hear me?"
"Yes."
Hong Shu's voice came out from the detective badge. There was no noise and the sound quality was good, but it sounded a little shaky:
"It's so cold in here...isn't the air conditioning on?"
Sakaki Makoto glanced at the air-conditioning thermometer on the wall and found that the temperature displayed was 28°, warm air, very suitable for rest, and at the limit where he would not catch a cold even if he did not cover himself with a blanket.
For some people, 28° may not be hot, but it won’t feel cold either.
"Aren't there clothes in the closet? Cover yourself with a few."
"Oh, I see."
Hong Shu answered sullenly.
"You guys just watch here while I check the central air conditioning unit."
The air conditioner had problems one after another, which made Makoto Sakaki very curious, so he decided to go and take a look in person.
After handing over the tasks at hand to Miss Miyano and the others, Makoto Sakaki took Kid downstairs, into the yard, and found the air conditioner host outside the bathroom.
A home-use central air conditioning unit like this is actually not very big, only about one person tall, about the same size as a small generator. However, due to long-term work, the failure rate is not low.
The chassis was locked, but this did not pose a problem for Kidd. He took out a piece of wire and pried open the lock, successfully opening the air conditioner main chassis.
Any air conditioner has two structures, an outdoor unit and an indoor unit. The purpose is to perform condensing compression exchange. During cooling, the heat exchange device of the indoor unit acts as an evaporator and the outdoor unit acts as a condenser. Therefore, the outdoor unit blows out hot air and the indoor unit blows out cold air.
When heating, the condenser compressor will work in reverse. The refrigerant will be turned into high-temperature, high-pressure gas under the action of the outdoor unit compressor, and will be discharged from the compressor exhaust port and input into the indoor unit evaporator. The superheated steam will dissipate heat through the evaporator and exchange heat. After reaching the specified temperature, it will be blown into the room from the air outlet through the cross-flow fan. The refrigerant that has undergone heat exchange will be turned into a low-temperature, high-pressure state again and sent to the outdoor unit for discharge.
The principle is roughly this cycle, which is common sense. If the air conditioner does not work well for heating, it is usually a problem with the outdoor unit compressor.
Holding a flashlight, Makoto Sakaki checked the main chassis and found that the exhaust vent of the compressor was not working. As a result, the high-temperature, high-pressure gas could not be input into the indoor unit. Without heat, the air that came out was naturally cold.
“This is troublesome…”
Sakaki Makoto frowned and said:
"Just because I can check it doesn't mean I can fix it... I can only wait until tomorrow to ask a professional to come and repair it."
"Oh, it's just one night, it will be over if we just endure it!"
In the cold wind, Kidd stamped his feet to loosen his numb body and said disapprovingly:
"We are all young people, it won't be a problem if we get a little cold!"
"Well, speaking of which, the Ogawa family is really rich..."
Sakaki closed the computer case and said with a smile:
"I saw the date on the circuit board and found that the central air conditioner they installed was the latest model from the past two years, and there was also a fresh air system, which was not cheap."
“What is a fresh air system?”
"It is to install a set of professional equipment to deliver fresh air to the room, forming a 'fresh air flow field' in the room to achieve the effect of air purification and ventilation. It was invented in 1935."
"Oh, let's go back, it's too cold outside!"
At Kidd's urging, Sakaki Makoto followed him back to the second floor and found that Miss Miyano and the others looked listless, with a sickly orange-red complexion.
"Hey, what's wrong with you guys?"
Sakaki Makoto rushed forward and asked.
"Head... I don't know why, I feel dizzy... I want to vomit..."
Miss Miyano said weakly.
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