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Titanium evaporator

Titanium evaporator 1

Titanium evaporator:
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MCQUAY Air Conditioner Fault Code

Fault display: (only applies to SLM APM01C controller) failure code fault
E0 E1 controller system fault an external fault input (current overload of the compressor) E2 External fault input (low voltage protection compressor system) E3 External fault input (compressor and high pressure protection) return air temperature sensor in E4 E5 indoor coil sensor missing or off or short circuit short circuit outdoor coil sensor off E6 E7 E8 outdoor ambient sensor to fall off or short circuit or short circuit the refrigerant leakage E9 coil temperature Overrun of more than 68 EA pump failure or water level cooling water temperature too high or too low EB EC network communication failure for McQuay modular air cooled water chiller/heat pump unit MAC210//DM/DR/DRS/DR MC302l controller user’s manual, operation
1, switch machine
Press the on/off key, unit powered on (RUN led lit), shutdown (RUN the lights) to switch between.
2, mode selection
Press the “mode” button to switch between cooling/heating mode, it should be noted that is, models but must be performed in a shutdown state.
3, parameter queries
Use the controller to query the network of any unit of work status and parameters (which compressors work, set the water temperature, water temperature, water set temperature, water temperature, timing settings of the unit, refrigeration and freezing temperatures, freezing temperatures, defrosting temperatures in winter).
By “unit” key Hou unit number flashing, at by “▲” or “” key change unit,, check see of is different unit of current parameter, to query a unit of work parameter, found to query of unit, Shi by “determine” key can query the unit of work parameter has, by “▲” or “” key view the unit of different of parameter.
4, parameter setting
① Press the “password” button in the left box under monitor display “password” and “00”, press “▲” or “” key to adjust the value when you select into the correct user password and press “OK” button (factory code to “00”), display box display time, it means that you’ve entered the correct password, you can make the following settings:
A, parameters change: after you enter the correct password, follow the steps ②→③→④ can complete the operation parameters of the modify settings.
B, the user password changes: after the correct password is entered, press the “password” button to display a box only displays “00”, then enter the user password to modify setting, press “▲” or “” key to adjust the value, press the “OK” button modifications support password to complete, and jump out of the parameter set state.
II press the “set” key unit number flashes, then press “▲” or “” key to adjust the unit, find for setting parameters of the unit, press the “OK” button you can set the unit’s operating parameters (parameters that can be set are: cooling water temperature, the heating water temperature).
③ Press “▲” or “” key to select the parameter you want to set, press the “OK” button you can press “▲” or “” key to set parameter values, after Setup is complete, press “OK” key to save the setting result.
④ Repeat step ② additional parameters that can be set (Note: not available within 60 seconds press the key to exit the parameter setting).
⑤ set parameter values must be performed in a shutdown state.
5, real time clock settings
With needle shaped tool by “mode” key above of small hole, LCD display Shang displayed “week set” of words, by “▲” or “” key set current time is week several, set good has zhihou again by small hole, week set success, while display Shang displayed “clock set” time will flashing, at by “▲” key modified hours, by “” key modified minutes, again by small hole can save set of clock.
6, regular set
① Press the “timer” button on the monitor at the same time show “week setting” and “timings” message, press “▲” or “” key to select a time in the week to set the timer, select, and then press “OK” button appears on the display “timer set” message, selected scheduled weeks, into the scheduled times.
II into timing frequency setting, press “▲” or “” key to select which day to set timing (can be set to 4 in the “unit” above), press “OK” key to select a time, into the timer on or off option.
③ Press “▲” or “” button to select “timer on” and “time off”, press “OK” key to select the timing is either on or off, enter timing selection, at this time appears on the display “timer set” and “clock set” and the time flashes.
Black press “▲” keys to change the hour, press the “” key, modify the minutes set time and press “OK” button to complete the timing of all the settings and save the settings, at this time appears on the display “timer set” and skip to step three parts, clock times and regularly order last week, cycle settings timed for a week until the exit time set.
⑤ If you want to cancel a timer, this timing timing must be set to 00:00. If you want to cancel all the time, you also need to press the “mode” and “set” keys, “dropping—–” after the sound of a Bell, all clear and timing.
Note: the regular boot and timed shutdown was subject to the clock time on the wire, if the clock is not accurate, regular boot and timed shutdown time will not be allowed. Scheduled during the Setup process, press the “unit”, “mode”, “password” key or 5 seconds no button will exit the timer settings (does not save the setting). Factory default timer as the 00:00.
7, manual defrost
Unit when the heat press “▲” or “” keys until the “manual defrosting” appears press “OK” key, enter manually defrost status. Exit the defrosting condition: ① the defrost time is more than 10 minutes; or II if the defrosting temperature defrost probe detects a temperature greater than setting temperature and defrost time heavy rain for 1 minutes.
8, reset
Press with a needle tool press the “▲” button at the top of the small reset hole.

Fault Code

 Code Possible Fault Code  Possible Fault
 EC00Number 15 sub-machine communication fault ER30Present machine group fault
 EC** **Number 1-14 sub-machine communication fault ER31Machine communication fault
 EC15 Number 15 sub-machine communication fault ER40 TH1 fault
 ER16 Copressore overload ER41 TH2 fault
 ER17 Fan overload ER42 TH3 fault
 ER18 Pump overload ER43 TH4 fault
 ER19 Less water flow ER44 TH5 fault
 ER20 High pressure fault ER45 TH6 fault
 ER21Low pressure fault ER46 TH7 fault
 ER23System fault ER47 TH8 fault
 ER25Low temperature of outlet water ER48 TH9 fault
 ER26Heating overload ER49 TH10 fault
 ER27 Circumstance temperature high/low ER50 TH11 fault
 ER28 Star urgent working function ER51 TH12 fault
 ER29 Overheat less than  1 degreeprotection ER53 Low pressure sensor fault

 

MACD module can store 16 a history fault, can through main module Shang of “K1” “K2” “K3” “K4” four a press find, specific method following: continuous by “K1” key until digital tube displayed “OHE”, then by “K4” key confirmed, displayed “HE–“, again by “K4” displayed “HE0-“, said need check subsection several fault, can through “K2” and “K3” press Shang turned or Xia turned, find subsection several fault, then by “K4” confirmed,  NIXIE tube displays the fault code. Example 1: display “HE0-“, after “K2” until “HE01”, press the “K4” by highlighting “ER21”, said the second failed for low-voltage fault.
Example 2: the need to find the 12th failure
Show “HE–“, after “K2” shows “HE-1”, and then press the “K4” by highlighting “HE1-“, and then press the “K2” until the digital display “HE11”, and then press the “K4” fault code confirmation can be found in the 12th. Troubleshooting “HE00” to “HE15”, represents the 16th the fault number. If you find fault display “ER00” indicates that the fault number fault-free. Such as found in “HE02” failure “ER00”, which means no third behind and fault injection: keys must be within 5 seconds operating MDS digital variable capacity multi-connected air conditioning system trouble codes
Cause codes E0 outdoor unit exhaust temperature temperature fault E1 DLT outdoor units OD ambient temperature temperature sensor outdoor machine fault E2 RTN temperature temperature sensor fault E3 E4 outdoor temperature temperature sensor fault at the bottom of the compressor Inlet temperature temperature sensor Midlet temperature temperature fault fault E5 outdoor machine E6 E7 outdoor outdoor Outlet temperature temperature sensor fault DLT exhaust temperatures Through the high conflict E9 E8 fault EE mode indoor unit fault F1 pump room ambient temperature sensor failure

Common malfunctions and their elimination methods of air conditioning

Frequently asked questions 1,In what conditioner the air conditioning system will turn?
Answer:  the air conditioning system will work in not all conditions, it must meet the following three conditions: 1. the engine is in the running state.
2. the ambient temperature is higher than 5 degrees Celsius (note that temperature is the temperature at the inlet).
3. on the blower switch on a gear, cannot be turned off.

Frequently asked questions 2: what`s the usage of air circulation system in the car
Answer: when the air conditioner is in the mode of circulation, out air couldn`t enter the car ,which prevents the outside air into the car, such as through the tunnel or traffic-intensive sections ,it can be enabled in-car system mode. If wants to rapid heating or cooling the air inside the car can also be enabled in-car system.
Note: 1. don’t let the car cycle system run for a long time, such as running for too long, because outside fresh air does not get into the car, and condensation on the window fog, path.
2. don’t smoke in the car, otherwise the system from the inhalation of smoke will be deposited in the car air conditioning evaporator air conditioning device will make the resulting the odor lingers on. In that case, replace evaporator problem can only be solved, can be time consuming and cost.

Frequently asked questions 3: How to shorten the time of air conditioning: during the process of cooling, compressor consumption engine power, increase fuel consumption.
1. If the vehicle has been exposed for a long time, in the air conditioning unit to work at the same time to open the window and door, hot air escape as soon as possible.
2. the use of air conditioning system in, close all the Windows and the activity window, you can give full play to efficiency of air conditioning. 3. access to ports must be open.
Air air intake on the front of the window not to be ice, snow, leaves and other foreign bodies blocking. Outlet air will flow through the entire output of cars, and then discharged from the vent under the windshield after cars, so don’t let the debris piled up on the Rear shelf blocked vent, resulting in heating, ventilation and cooling system is not working properly.
4. If the air conditioner can maintain the temperature inside the car is not enabled, you can set the air conditioning mode to ECON (economic) mode.

Frequently asked questions 4: why there is  bad smells after a spring and summer?
Answer: air conditioning do not use for a long time, because of natural sedimentation, evaporator and his smell. Therefore, the air-conditioning unit must open at least once a month, and make it work at maximum operating conditions over time, clear or prevent odor. Note to do this open in one window, so that air circulation inside the car.

Frequently asked questions 5: air conditioning evaporator flows”water”,does it mean air conditioning system happen problem?
Answer: under the hot and humid weather conditions, condensation, moisture in the air condenses in the air conditioner evaporator, forming water droplets, from the evaporator drip down, formed under of water, this is a normal phenomenon, without fuss, thinking it was a problem with the air conditioning system.

How to clean air conditioner?

Do you want to clean air conditioner DIY?Maybe,you feel it is too diffcult. But in fact,it is not hard! Now,let me teach you how to clean.Prepare for the following tools and cleaning agents.

Cleaning Tools
Air Conditioner Cleaning Equipment or machine, toolbox, steam shower washing machine, watering can, scraping, fin comb, lighting, blade, wipes, water bags, seat belts, work signs

Cleaning agents
Air conditioning special cleaning agent, universal foam cleaner, shell cleaner, WD-40, pure water

Cleaning steps:
1. Before cleaning first check whether the normal operation of the air conditioning, then turn off the power.

2. Clean the surface of dust air conditioning work at the same time erect signs.

3. Follow the instructions of the air-conditioned enclosure and panel removal, remove the filter.

4. 5L watering can wet the parts to be cleaned in order to better cleaning foam.

5. The air conditioning cleaning agent with a watering can spray on the cleaning of the fin, and allowed to react for 5 to 8 minutes to complete penetration, decomposition exclude stains and cracks in the surface of the fin.

6. scraping scrape the surface of the foam fins with stubborn dirt and deformed fins available uncleared fin comb to clean up.

7. steam shower washing machine after washing fin temperature sterilization, disinfection, grease decomposition.

8. Use the air cleaning machine cleaned with water through the fins clean.

9. Clean the filter and replace the panel.

10. The cabinet and the panel is installed to replace the original air-conditioning installation position, and start running 20 minutes inspection and acceptance.

A light commercial compressors

EMBRACO China factory recently started producing compressors developed for commercial refrigeration products, the first product designed for commercial freezers and stereo display cabinet design, called EMT series compressors.

It is reported that EMT EM production series compressors. Responsible for EMBRACO commercial refrigeration products marketing Andr é Holderbaum said: “through EMT EM production series compressors are efficient, small size and low noise characteristics, also compatible with R134a R290 refrigerant. ”

Holderbaum said that in recent years, Chinese exports of commercial refrigeration products is on the rise, EMBRACO was concerned. He said: “commercial refrigeration compressor products locally in China are put into operation, we will enhance the level of service, making our service more flexible, while monitoring the trends of the market. ”

Brushless DC motor for air conditioning in Wolong reached advanced level of similar products

A few days ago, from Wolong electric group control Office was informed that the new product development, the company developed plastic-sealed brushless DC motor for air conditioning has successfully entered the production phase. Proven, new efficiency, noise, vibration and other performance parameters have reached the advanced level of similar foreign products.

It was also noted that, DC motor for air conditioning in Wolong is preparing for mass production, current DC motor production plant has been completed, the debugging work completed, is expected to formally put into production in late September 2009, initial design capacity of 100,000 units a month later according to the demand of the market due to enlarge. In addition, the Wolong DC motor test samples have been sent to major customers, feedback is more ideal.

Welling wash motor sales in the first half of this year grew by 15%

Has learned the first half of 2009, welling wash motor sold about 4.628 million, exports about 3.209 million units, overall sales last year rose by about 15%. Under the influence of changes in overall market demand, welling wash motor sales change in the structure of the first half of 2009, washing motor sales rose 89%, drum-type washing machine motor 14%. In order to ensure the washing Motors business development, Wellington and actively promote new products, the first half of 2009 into the food processing small series motor products industry, the successful development of motor and large volume sales of soy milk. But the impact as well as falling commodity prices product sales, welling wash motor a turnover of HK $ 687 million, down by 12%.

Ruizhi 2010 plans to produce 400,000 sets of compressor

Recently, ruizhi compressor got the news that the 2010 ruizhi inverter compressor is scheduled to produce 400,000, mostly in mainland China, a few from China’s Taiwan factory. City’s products are mainly for Japan and air conditioning in city markets.

XI An Qingan: 2009 Annual compressor frozen sales of 1.314 million units

Has learned the 2009 frozen year Xian Qing an air conditioning compressor 1.314 million set. In addition, XI An Qingan achieved new progress in developing energy efficient products, a new series high-efficiency products have matches completed, starting from September 2009 bulk supply.

Sichuan Changhong high efficiency air conditioner compressor production

Recently learned that, Sichuan Changhong has begun mass production of energy-efficient air conditioning compressors. According to CHANGHONG in charge, this new models now account for CHANGHONG 30% of the purchase, the future is expected to reach 70%.

Ling Da compressor full production

Recently, gree owned Landa compressor was informed that in August 2009, the company has been producing at full capacity in September, Ling Da compressor more demand. Now Ling Da has been reported to stop production energy efficiency class 3 compressor, all to produce more than 2 levels of energy efficiency products.

Danfoss financial crisis led to the first half of 2009 decreased performance

A few days ago, Danforth released its 2009 financial report in the first half. According to the report, the first half of 2009, Danfoss sales of 12.5 billion Denmark kroner (about 16.816 billion yuan), up 10%, excluding other income and expenses profit loss of 660 million, Denmark krone, first half of 2008, the figures for profit of 693 million Denmark Krone.

Danfoss expects net sales for the year to 24 billion to 25 billion Denmark kroner pretax profit forecast to-1.6 billion Denmark kroner to-1.9 billion Denmark kroner.

A few problems that you need to know in floor heating system

Floor heating has a few problems that need attention, you know? With the arrival of cold weather in winter, many people are going to choose to install floor heating, have a warm room in their home environment. Heating a system, covers all aspects of the problem.

1. Select the heating pipe problems: select will directly affect the life of the floor heating system heating pipes, floor heating system is a system of long-term covert use, choose what kind of heating pipe directly affects the life of the whole system. When selecting a heating pipe can select imported pipe or joint-venture companies, no province during an initial installation cost, select the pipe too cheap at a later stage, maintenance costs or even in early times, and a construction boom. So choose good quality pipes, is the high cost is worth it.

2. Select water-divide problem: water-divide is the main material of the floor heating system, quality, directly related to the operation of the whole system, and may not match the corresponding temperature, causing budget overruns. In this regard, importing diversity has great advantages in quality and uneven domestic products, and applied for a short time, the quality varies greatly, so choose carefully, suggested the use of products from well-known manufacturers.

3. install floor heating engineering problem: accurate should be strictly in accordance with construction drawing design, due to warm is a system, when installed, must be good and home improvement, and must not be installed on the warm floor random construction work, has the potential to cause damage to the heater. And cannot be opened without permission to warm the device, if it will affect the construction, you must get in touch with installing floor heating supplier, in time.

4. There is no need to install temperature-controlled Central: some type of heating area is big, generally recommend installing temperature-controlled Central, so that each can be individually set the heating temperature of the room, or you can set the temperature of the room to a minimum, keep running. By temperature-controlled central control, significantly saving energy profligacy; and easier centralized management control.

how to choose radiator

Warm radiator pros and cons about starting from the first House until now, is constantly learning, a little dizzy, the problem with this is the benevolent.

Just finished decoration and immediately renovated a House, through practice, comparison, I still want to try change: simple or primitive style last time and, more recently, of simple pastoral grasses begin to grow, my husband says I’m too fickle, and alas! Say say it right, maybe a couple of days and changed my mind about it?

Floor heating is much better than radiator. In fact, heating technology and materials is very mature and has decades of history in China, just about enough to know it will have to be worried. Floor heating does not occupy the indoor space relative to the radiator, more comfortable than radiator heating, heating customer will save money. As long as the heating of underground pipelines during construction is impossible to protect late may cause a problem, much more security than the radiator, the radiator’s interface is very easy to leak, and relative to the life of the radiator to warm to much shorter. To warm the fault rate is much smaller, and maintenance is simple.

So I think now is sure to open your eyes and select a trustworthy shop, doing well to warm! Maybe ten years after, renovation, demolition, think are terrible, renovation is tiring!27455

How much can energy-saving air conditioning save money

In an interview, the reporter found that while “China energy efficiency labeling” in conditioning prototype can be seen on the fuselage, but many salespeople explained or vague, or to my problems, and some are even alleged to have misled consumers.

Air conditioning in some counters, sales staff said the air conditioning in a level 4 grade 1 efficiency energy efficiency is equivalent to other brands, in fact here, the salesperson is constant-frequency air conditioning inverter air conditioner efficiency ratings and mixed with the energy efficiency levels of contrast, he means a level 4 of variable frequency air conditioning energy efficiency equivalent to level 1 of another fixed-frequency air conditioning energy efficiency.

In interviews, reporters also found a citizen is the selection of air conditioning was a little confused and asked: “energy efficiency standards for national unity, don’t you? why are 4 levels of energy efficiency, the air conditioning energy efficiency ratio is 3.4, but that air conditioning is just 2.8? what about this air conditioner can save much electricity?” At least once a month, 60~70du. “The sales staff said, pretty sure. “Can save so much? ‘ how was this data out?” ” Calculation method is complex and involves a lot of expertise, I don’t know specifically, but buying it must deal, put up energy efficiency labeling of a simulated? ” Ultimately, the customer is befuddled and left.

In the course of visits to, the reporter noted, some outside sales personnel, in addition to greater efficiency than the vague, is also alleged to have misled consumers. In another air conditioning counters, sales staff even told customers, just labeled as “China energy efficiency labeling” air conditioners are energy-saving products. In fact, air conditioner “energy label” consists of 1, 2, 3, 4, 55, only energy efficiency for level 1, level 2, products can be called energy-efficient products, like 5 levels represent energy-intensive products, market access indicators and, therefore, not “energy label” equate the and saving energy.

B simple formulas to help you count the air conditioning energy saving accounts

In fact, to count the air conditioning energy saving accounts, must first figure out air conditioner “energy efficiency ratio”, because it is a measure of an air conditioner is energy efficient or low energy-efficiency standards.

The so-called “energy efficiency ratio” is the ratio of air conditioning refrigeration and cooling power, in other words, is 1-kilowatt how many kilowatt of electricity generated by an air conditioner with a cooling capacity, for example a 2P air conditioner cooling capacity is 5000W, cooling power is 1785W, so its energy efficiency ratio is 5000/1785=2.8, EER, the greater, shows air conditioning energy efficiency rating, the higher energy the better.

At present, the State aiming at constant speed inverter air conditioner and air conditioning, and enactments of two corresponding to the energy efficiency standards, among them, the constant-speed air conditioner 1~5-level energy efficiency ratio was 3.4, 3.2, 3.0, 2.8, 2.6 and 5.2 per cent of variable frequency air conditioning, 4.5, 3.9, 3.4, 3.0.

Then, on a daily basis, high level energy efficiency ratio EER air conditioning is better than low level air conditioning how much electricity it? gree electric appliances sales co marketing Dragon Minister told reporters that settled this account, it’s really quite simple, or as a cooling capacity up to 5000W 2P air conditioning, for example:

Grade 1 efficiency of the electricity consumption of 5000W/3.4=1471W, namely, power consumption per hour 1.471

2 energy-efficient electricity consumption of 5000W/3.2=1563W, 1.563 per hour electricity

At current electricity charges 0.62 Yuan/degree calculation, if a family uses 4 months in a year (about 120 days), power on 8 hours a day, the grade 1 efficiency ratio 2-level energy efficiency can save a year for electricity: (1.563-1.471) x8x120x0.62=54.76 ().

Mini “tanks” step into duct air conditioning for cleaning work

  One-foot-square box, two swivel webcam, at the foot of “push off” with two tracks, the small “tanks” look like small robots that are dedicated to clean central air conditioning. Yesterday, two small “tanks” Carrefour South third ring shops started opening soon central air conditioner for a three-day “bath”.

Carrefour South third ring road store has been completed, and before the end of the opening Welcome, in accordance with the relevant requirements, large supermarket opened to a centralized before cleaning, clearing the construction waste generated in the course of construction, yesterday, Carrefour South third ring road store cleaning central air “heavy responsibility” falls on two small “tanks” on the body.

9th when the morning came to Carrefour, Central fresh company workers are a small “tanks” placed in a duct, then the negative pressure machines have also been installed in the wind on a level crossing, the small “tanks” who monitors connections and worker around the camera well, everything’s in place, the small “tanks” with a big brush work.

Seen from the monitor to, large brush began to WHIR, each sweeping a Department worker on command the camera this way and that visits, to see where there is no sweep, immediately directed the small “tanks” run to sweep up. This small “tanks” “swish swish” sweep, side wind crossing the negative pressure machines “WHIR” smoking and in a short time, more than 20 metres long duct cleaning, reporter asked the workers to open the trash, just more than 20 meters long tunnel has been swept out of the lime sludge and other construction debris, is 342.

“This is just the completion of construction, central air conditioning in the dirt is still relatively simple. “Jin Shiyou central air conditioning clean industry company Chairman Huang Jingyue told reporters that if used architecture, central air conditioning in the dirt” variety “. RJ047

Expert view

Air conditioning cleaning on a regular basis far more power

In accordance with the relevant provisions of public buildings once every two years to central air conditioning clean, but nearly 20,000 public buildings in Beijing, do central air conditioning clean less than 3,000. “Central air conditioner cleaning time you need to spend a hundred thousand of dollars, but the ‘ wash ‘ after air conditioning efficiency can save electricity 5% to 8%. “Wang Dongzhan international trade construction industry branch of China building clean-Commission Secretary-General, told reporters that cleaning fee that a hundred thousand of dollars to spread on the floor area, only 4 Yuan per square meter or so; but at least tens of thousands of square meters of public buildings, central air conditioning uses electricity has a hundred thousand of Yuan a year, regular cleaning of air-conditioning electricity savings of at least tens of thousands of dollars a year.

The problem of Air conditioner bracket overage “service”

Yesterday, I arrived at the shengli Street in a residential area, in a residential building staircases, hanging 30 outside air conditioning machines, these machines are at the bottom A/C bracket. Author notes, some air conditioning outside brackets have different degrees of aging, stents have rusted, see how it used to be.

Subsequently, the author visited 4 older neighbourhoods in succession, many aging air conditioner bracket corrosion conditions exist in residential buildings.     These brackets at the top, to passers-by for security breaches, and some low floor stand, could see the rust on the surface of Standard Chartered, was getting a little nervous by the men.     In addition to air conditioning hack, some residents in the racks are installed on the external wall of the stairs, there are rusted.     Passers-by bracket will drop the author interview at any time found, the vast majority of residents thought that the air conditioner is well once and for all of the installation of air-conditioning, not considering air conditioning bracket to be aging, always felt that as long as the air conditioning doesn’t work, the stent should not be a problem. Public home air conditioning installations for almost 4 years. He told me that since the air conditioner once it is installed, haven’t noticed hanging outside the House, air conditioning stent. “Never thought air conditioning bracket will have a bad day, you say, really are worried about the wrong kind of I have to check.     “Mr Cheung said. “I dare not go close to the wall for fear of old air conditioning upstairs racks or shelves falling. “Public song lady told me that themselves outside the walls of the danyuanlou households in residential air conditioning outside. Last summer, when she was stopped by and felt something fell on his neck, took a look, turned out to be air conditioner rust residue of stent, which has haunted her. “Air conditioning bracket weathered outdoors, the losses quickly if hit people hold down, may be in trouble. “And the song Lady, in an interview, many people, air conditioning stent safety concerns. “The thing that hangs in the air like little time bombs that once exploded, the consequences would be unthinkable.     “A member of the public said.     General steel frame is safe to use 6 years yesterday, the author learned from the municipal industrial and commercial sector, currently, there is no unified national quality standards for the air conditioner bracket, then the air conditioner bracket service period is long, its replacement and who is responsible? Author then contacted a certain brand of air conditioning Distributor. According to the sales personnel, currently available on the most common air conditioning brackets made of ordinary steel and stainless steel, the former safety period of about 6 years or so, which is safe to use for a period of 10 years. “After consumers buy air conditioning, general contact after-sales personnel on-site installation by us, in the ‘ guarantees ‘ within as soon as air conditioning bracket problems, consumers can contact the after sales repair and replacement.     “The salesman said. According to the relevant laws and regulations, buildings, structures or any other facilities and shelving, hanging off, falling damage is caused to others, owners, administrators or users cannot prove that he is not at fault, he shall assume the tort liability; the owner, Manager or by using the compensation, there are other responsible persons shall be entitled to recourse against other liable persons.     In this regard, the author consulted the Zhuo Shi law firm Wang Yuyi, Shandong. Wang Yuyi believes that air conditioning outside or cradle fall accident, the responsibility determination of the existence of a variety of situations. If delivery of the new building, by developers to install air conditioner bracket, then the responsibility lies with the developers, but developers have a right of recourse against installation unit; new buildings or old buildings, the mounting bracket by the residents themselves, then the responsibility lies with the people themselves, too, residents also have the right to recourse against installation unit. Wang Yuyi reminded members of the public, it is important to strengthen the maintenance of air conditioner bracket, use longer air conditioning brackets, replacement in a timely manner to avoid safety accident

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