Topic: Modification on CL-450 Chiller

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Modification on CL-450 Chiller Copy to clipboard
Posted by: Wally
Posted on: 2003-05-06 14:53

Hope this can help.

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Posted by: Wally
Posted on: 2003-05-06 15:00

I have checked the original fan and find the axis of the blade is not inline with the axis of motor. So the fan will vibrate when powered on and I believe it is the reason for noise.

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Posted by: 辛月兒
Posted on: 2003-05-06 23:10

勁呀!! Wally 哥!!

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Posted by: POL159
Posted on: 2003-05-07 18:31

wally兄,我睇完上面[$#22021]相片仍然有[$#21874]唔清楚,[$#22000]把新裝[$#22021][$#39118]扇一[$#36793]用被鋸短[$#22021][$#38081]架支持住,但[$#20964]扇另一[$#36793]是如何支持呢? 有冇考慮用支架盛起[$#39118]扇及 新[$#39118]扇與舊風扇[$#22021]馬力是否一樣?

回覆: Modification on CL-450 Chiller Copy to clipboard
Posted by: Wally
Posted on: 2003-05-07 21:08

辛月兒
Just try try only.

POL159
You noted something that I have not mentioned. Sorry.

<<但[$#20964]扇另一[$#36793]是如何支持呢?>>
There is no support made at the top of the fan. I have considered it before. The best solution is to mount the top with the condenser, but I do not have short screw in my tools box. Also I am too lazy and I found no problem at all in my case so I just skip it. The screw used to mount the fan should be thick enough (I use 1/4")

As I mentioned in the post the fan should be tested after replacement to make sure the operation is smooth.

<<有冇考慮用支架盛起[$#39118]扇>>
I have bought some metal steel but as you can see there is not much space in the chiller.

<<新[$#39118]扇與舊風扇[$#22021]馬力是否一樣>>
This is really a problem. From the original fan there is no information available, so just buy the biggest possible fan that can fit. Very sure now the power of the new fan is lower than original as running time increased, but with lower noise it is worth.

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Posted by: billysmw
Posted on: 2003-05-08 09:40

Wally 兄
請問你部機係改完之後同未改前既制冷時間有無大分別!
另外,呢隻機係咪當你set26度佢要等水溫上到28度先著機,去到26度就停機!
唔該!

回覆: Modification on CL-450 Chiller Copy to clipboard
Posted by: Wally
Posted on: 2003-05-08 20:38

Billysmw,

The running time is extended to 40 minutes from 30 minutes, when the set temp is 26, room temp is 28C, tank size 400L. A stronger fan with same size will do better, but the one I use is the only one I can find in Yuen Long. You can check RS Components (http://www.rswww.com.hk) for other fans.

You are right that this chiller has a 2C "delay". But on the thermometer in tank it shows 1C only.

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Posted by: billysmw
Posted on: 2003-05-09 09:25

ok
唔該!

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Posted by: jaffe
Posted on: 2003-05-19 00:19

千祈咪改細把散熱扇,除非肯定風量不變,原本把扇應該已計埋出入風柵口,散熱coil[$#22021]風阻,有[$#21874]風扇種類只適應free air delivery(只能克服很低風阻)
散熱不足的後果::::::::::::令冷凝壓力Condensing Pressure升高,
制冷能力下降之餘.......嚴重者令部機high cut
長期運行會令壓縮機compressor負荷過重......短命[$#21655]
重勁唗電

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Posted by: POL159
Posted on: 2003-05-19 22:31

Wally wrote:
Hope this can help.



jaffe, 你真聰明竟然念到呢個問題,唔知你係唔係呢方面有認識呢:) 我曾經將水冷機[$#39118]扇拆出然後通[$#30005][$#21843][$#21160],[$#28857]知運行+分暢順絲毫雜音都冇,但將風扇放回水冷機度[$#21874]嘈音又出翻[$#22175],我諗[$#20250]係[$#39118]阻對風扇造成聲響,而我亦唔敢轉用其它風扇,[$#25285]心其轉速問題:D

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Posted by: jaffe
Posted on: 2003-05-20 00:19

我雖然做冷氣工程,但係得把口,扮[$#21523]專家分析就得,
講到落手落[$#33050]叫我做一部分體水冷就唔掂
雖然係我[$#22021]夢想,退休先啦:P:P

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Posted by: jaffe
Posted on: 2003-05-20 00:45

POl169,
你[$#22021]推論正確,但可用以下方法揀把大風的[$#39118]扇:
1.尺寸大的但轉數RPM低[$#21874].(RPM越高越嘈)[$#39118]扇直徑越大,風量越大
2.運行電流越高,[$#39118]量越大,但要裝好後以電流表量度為準,不能只看label,
3最準用風量表量度,我有呀
重有,牛頭角X達的石同珊瑚砂正唔正,佢賣[$#22021]日新水冷好定海利好呢?
但我最鐘意另一篇文章講[$#22021]韓[$#22269]fish cooler 分體式水冷機,正正正
邊度有得賣呢?

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Posted by: alextkk
Posted on: 2003-05-20 14:29

請問各位, 如要安裝可變電阻來調教風扇轉速, 應裝設於那條電線中間.

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Posted by: Wally
Posted on: 2003-05-20 17:37

Hi Jaffe,

You are very true that 千祈咪改細把散熱扇,除非肯定風量不變. Unfortunately my wife give me only 2 choices only, one is drop the chiller :(. But I think the running time increased from 30 to 40 minute is acceptable. What is your comment?

I have not checked the run current of the compressor before and after modification so I do not know how much increase in the discharge pressure.

Hi Alextkk,

Make sure your "可變電阻" is designed for motor, not light. Normally it should be connected to "live" line.

Hi POL159 ,

Based on your finding you can run the chiller with the case, but make air channel to avoid hot air recirculate into the chiller.

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Posted by: POL159
Posted on: 2003-05-20 23:31

唔好意思呀wally兄,因自小唔鍾意讀英文之過,所以[$#21464]成英文盲鑄成大錯:( 唔知你可唔可以用中文表達呢:D

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Posted by: jaffe
Posted on: 2003-05-21 01:00

wally,
pls inform me first if u drop yr chiller, my wife has no say in this issue.講笑:D:D
補救方法: 盡量將chiller[$#22021]熱氣帶走,不讓它回流返入風位(short circuit)係降低condensing temperature [$#22021]方法,試[$#21523]將1把普通家庭式細[$#39118]扇吹走chiller排出的熱氣(小心吹風方向,如果唔係將熱氣壓返轉頭重big pan)即係多阻1把串連[$#22021]booster fan.又平又簡單.
千祈唔好放chiller係柜內,百頁門都死
[$#39118]扇要用風扇專用[$#21464]速可變[$#30005]阻,否則火燭有之.

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Posted by: mark six
Posted on: 2003-05-21 02:32

jaffe
我上星期在宏達買了4箱石每箱$800,每箱都超過50磅對比其他水族館是好經濟,平均$16磅而石上的石化鈣都好靚。而你有關分體水冷機的問題都可問他門,最好找祥哥問,因輿他吹水個多小時中學了很有關水族上的東西及其他事物。如你有空可找他吹吹水,不果他門要成貳[$#21441]點鐘先開門,最好先打電話有人至去。

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Posted by: mark six
Posted on: 2003-05-21 02:44

jaffe
宏達電話23967597,記得先電後去,我吃了多閉門羹了。

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Posted by: jaffe
Posted on: 2003-05-22 01:45

mark six,
你成日中六合彩架?成幾箱石,個缸咪好大?係唔係換缸呀?如果養珊瑚,有冇用滴流?講的[$#32463]驗[$#22175]聽[$#21523],我而[$#20010]缸得40L水養[$#21655]6絛[$#40060],[$#22000]晚在宏達買[$#21655]幾件石同3磅珊瑚砂,[$#22000]度的人都幾好傾,由清明節重新開缸,應該有3成成熟,你去<<圖片共享>>[$#22021]其中...**缸頂滴流運行中**...就[$#20250]見到我改裝[$#39532]氏缸,俾[$#21874]意見啦,用緊Red Sea Prizm skimmer
遲[$#21874]開埋[$#20010]190L馬氏缸改用假滴流,底缸加[$#20010]水冷養多缸珊蝴,未玩過珊瑚,不過要自己鑽吼.點設計個假滴流用底缸呢? 主缸尺寸: 30''(W) x 30'' (H) x 13'' (D)

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Posted by: mark six
Posted on: 2003-05-23 01:14

jaffe
不是換缸都是初學者一個,個缸460L水左右。

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Posted by: POL159
Posted on: 2003-05-23 18:08

jaffe, 唔知你有冇留意一般士多舖放置凍飲[$#22021]雪櫃呢,指[$#22021]係兩塊玻璃門窗互推後,取裡面飲品[$#22000]種不透鋼凍櫃,佢上面[$#22000]部制冷機,從外表睇[$#22175]同日新CL-650都十分相似,而且行起上[$#22175]仲好靜,但所散出[$#22175][$#22021]熱氣唔知犀唔犀利,若然DIY佢加鈦炮造成水冷機從理論上可唔可行呢?

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Posted by: Wally
Posted on: 2003-05-23 21:48

POL159

It is exactly what is using in 日新 chiller, but of course the horse power may be different. You can find it in many air-conditioning store, like 英光. That part called "Condensing Unit".

However, you need many tools to build the chiller:

1) If welding required, flush the tubing with dry nitrogen gas is recommend. This prevent oxidization at welding joint, and remove moisture which will react with refrigerant to become acidic.

2) You need a vacuum pump to evacuate the system after the condensing unit is connected to Titanium heat exchanger (鈦炮). This remove all air (nitrogen) in the tubing, and further remove moisture.

3) You need a charge meter to check the vacuum level, test leak (both under vacuum and under pressure) and filling of refrigerant.

4) You may need a clamp type meter to check the running current of the compressor. This can be used as a guidance for filling refrigerant.

5) Of course, you need refrigerant.

If you do not have those tools, especially vacuum pump which is expensive, you may consider to find local air-conditioning store to do the job for you.

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Posted by: POL159
Posted on: 2003-05-23 23:05

wally兄, 我真係唔識英文架,剩係識得二十六個英文字母xx( 因我自小見到英文就會人事正省xx( 希望你能用中文表達,就下細佬幫一忙吧:D

回覆: Modification on CL-450 Chiller Copy to clipboard
Posted by: Wally
Posted on: 2003-05-24 00:29

I am sorry that I do not know Chinese Input Method, but find a website translater.

叫做 Condensing Unit, [$#24403]然[$#39532]力也[$#35768]不同。你能[$#21457][$#29616]它在[$#35768]多空[$#35843]商店, 如英光

然而, 你需要[$#35768]多工具修造:

1) 如果要焊接, 推荐用干燥氮气[$#20914]洗管材。[$#36825]防止焊接位氧化, 和消除[$#28287]气(使冷[$#20923][$#21058][$#21464]酸。

2) 焊接後你需要真空泵抽取消所有空气, 和[$#36827]一步取消[$#28287]气。

3) 你需要 charge meter [$#26816]查真空水平, [$#27979][$#35797][$#27973]漏(在真空之下和在[$#21387]力下 ) 并且填[$#35013]冷[$#20923][$#21058]。

4) 你可用[$#38067]型 meter [$#26816]查[$#21387][$#32553]机的運作電流。[$#36825]可用作填[$#35013]冷[$#20923][$#21058]的 guideline 。

5) [$#24403]然, 你需要冷[$#20923][$#21058]。

如果你[$#27809]有那些工具, 特[$#21035]是是昂[$#36149]的的真空泵, 你可以考[$#34385]地方空[$#35843]商店[$#20026]你做。

回覆: Modification on CL-450 Chiller Copy to clipboard
Posted by: POL159
Posted on: 2003-05-24 17:17

Wally兄, 勞煩哂;) 因我見有網友用分體式冷氣機DIY[$#22175]做水冷,咁[$#21873]天氣熱就去士多買支汽水時,見到放汽水[$#22021]凍櫃頂有部制冷機,外型同日新水冷CL-650極其相似,所以咪有咁[$#22021]諗法囉:P 其實用分體式冷氣機與凍櫃制冷機[$#22175]DIY成水冷機,究竟[$#36793]樣容易同價錢平:D 仲有要你轉寫中文係唔係好困難呢,真係唔好意思,我會[$#23398]好[$#21874]ABC架啦:D

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Posted by: Wally
Posted on: 2003-05-24 19:52

用分體式冷氣機 is better, 因[$#20026]它被[$#35774][$#35745][$#20026]室外用.

凍櫃制冷機 is cheaper.

忘[$#35760]提及, 你需要[$#28201]度控制器

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Posted by: choinm
Posted on: 2003-05-24 20:13

請教Wally兄,你用邊個 website translater 譯得咁通順。

回覆: Modification on CL-450 Chiller Copy to clipboard
Posted by: Wally
Posted on: 2003-05-25 10:04

http://babelfish.altavista.com/translate.dyn

Rearrange translated sentense is required.

回覆: Modification on CL-450 Chiller Copy to clipboard
Posted by: choinm
Posted on: 2003-05-26 21:21

唔該Wally兄。

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