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7 days ago

High ambient temperature results in that the intelligent temperature controller of S&A water chiller displays 30℃, and it is mistaken for failure of c

Yesterday, an Indian laser customer made a mistake and wasted a sum of maintenance fee.

When using the S&A CW-5000 water chiller to cool CO2 laser tubes, the customer found that the control panel of the chiller displayed 30℃, and he mistakenly assumed that the chiller couldn’t cool any longer. So he asked local maintenance personnel to supplement refrigerant, afterwards, he contacted S&A.
After we learned the whole thing, we finally found the reason why the water temperature of the chiller rose continuously.
The factory setting of S&A CW-5000 water chiller temperature controller is intelligent mode. Under intelligent mode, water temperature will change with ambient temperature (generally, water temperature is 2℃ higher than ambient temperature). So, when the customer’s workshop temperature exceeds 30℃, the water temperature of the water chiller will fluctuate around 30℃. At this point, it is only needed to turn the mode of the water chiller temperature controller to constant-temperature mode, so as to set water temperature manually, such as maintaining the temperature at 25℃, then the problem can be solved easily.
 
Warm prompt: If the water chiller has any abnormity, please contact the after-sales personnel of S&A timely.
Thank you so much for your support and trust in S&A. All S&A water chillers have passed the certification of ISO, CE, RoHS and REACH, and the warranty period has been extended to 2 years. Welcome to purchase our products!

 

laser chiller

CONTACT S&A

TE:+86-20-89301885

FAX:+86-20-84309967

SKYPE: teyuchiller

Email:marketing@teyu.com.cn

Website: http://www.teyuchiller.com

1 week ago

The cooling of 1500W fast-axial-flow laser tubes with S&A CW-7500 water chiller

At two or three O’clock in the morning, it is believed that most people are sleeping in warm bed, but there are some people who are on their way home. These people are very lovely, and they are----after-sales personnel of S&A.

I received a call from a laser customer of Shenzhen, who said that CW-7500 water chiller couldn’t work and needed to be repaired, and that this CW-7500 water chiller was for cooling 1500W fast-axial-flow CO2 laser tubes. According to the condition described by the customer, S&A determined that the chiller compressor had faults and needed to be replaced.
The customer was during a rush period, we couldn’t delay. And it only takes two hours to drive from Guangzhou to Shenzhen, so S&A determined to let after-sales personnel to directly drive a car to Shenzhen for repair through negotiation of multiple parties.
Compressor is the “heart” of water chiller. Involving welding technology, the procedures of replacing a compressor is complex, so a welder also went to site for repair in addition to after-sales personnel.
Compressor replacement was not completed until two o’clock in the morning. They detected the whole chiller and ensured that the chiller could work normally before they decided to leave for Guangzhou.
As the maintenance personnel repaired the chiller timely, the customer conducted normal production operation and completed order as scheduled, so the customer specially called S&A to express thanks!
The after-sales personnel of S&A are excellent! The development of S&A can’t leave you. Thank you!
Thank you so much for your support and trust in S&A. All S&A water chillers have passed the certification of ISO, CE, RoHS and REACH, and the warranty period has been extended to 2 years. Welcome to purchase our products!

 

chiller

CONTACT S&A

TE:+86-20-89301885

FAX:+86-20-84309967

SKYPE: teyuchiller

Email:marketing@teyu.com.cn

Website: http://www.teyuchiller.com

1 week ago

S&A delivers CW-5200 water chillers quickly and therefore wins praise from laser customers

Laser customer: “Hello, the payment for the water chillers has been arranged, and this is the money order.”

S&A Water Chiller: “Ok, thank you! We have arranged the delivery of two CW-5200 water chillers.”
Laser customer: “Efficient! Very good!”
What happened?
This laser customer purchased two CW-5200 water chillers from S&A to cool CO2 laser tubes, and transferred funds to S&A immediately after the order. And S&A arranged delivery of the water chillers promptly after receiving the payment from the customer.
So, when the customer sends the money order to S&A, S&A has arranged delivery of the chillers.
Thank you so much for your support and trust in S&A. All S&A water chillers have passed the certification of ISO, CE, RoHS and REACH, and the warranty period has been extended to 2 years. Welcome to purchase our products!
chiller

CONTACT S&A

TE:+86-20-89301885

FAX:+86-20-84309967

SKYPE: teyuchiller

Email:marketing@teyu.com.cn

Website: http://www.teyuchiller.com

2 weeks ago

If the water tank temperature of S&A CW-5200 water chiller is too high, is it useful to add Freon?

A customer of S&A consults to S&A: “Hello, if the CW-5200 water chiller stops working due to over-high temperature of water tank, is it useful to add Freon?”

Here, S&A reminds all customers: over-high temperature of water tank of the water chiller is not necessarily caused by refrigerant leakage. The reasons for over-high temperature of water tank of the water chiller include the following points:
1. If the dust screen is blocked, it is only needed to clean the dust screen;
2. If the place where the water chiller is located is unventilated, it is only needed to ensure smooth air-in and air-out channels of the water chiller;
3. If the water chiller has dust deposition inside, it is only needed to clear the dust deposition inside the water chiller;
4. If the fan of the water chiller stops rotating, it is only needed to replace the fan;
5. If the starting capacitance of the compressor declines, it is only needed to replace the capacitor;
6. If the voltage of power supply for the water chiller is not stable, it is only needed to add a voltage regulator;
If the six possible reasons above are excluded, the reason may be refrigerant leakage of the water chiller. It is needed to check and fill up the point that has refrigerant leakage and to refill refrigerant.
Thank you so much for your support and trust in S&A. All S&A water chillers have passed the certification of ISO, CE, RoHS and REACH, and the warranty period has been extended to 2 years. Welcome to purchase our products!
water chiller

CONTACT S&A

TE:+86-20-89301885

FAX:+86-20-84309967

SKYPE: teyuchiller

Email:marketing@teyu.com.cn

Website: http://www.teyuchiller.com

2 weeks ago

Low-temperature pressure gauge at low level will lead to alarm of water chiller due to insufficient water flow

Customer: “Is it normal that the low-temperature pressure gauge is at a low level?”

(Low-temperature pressure gauge is exclusive to S&A dual-temperature dual-dump series of water chillers, which is used to test water pressure at low-temperature end.)
S&A Water Chiller: “Hello, if the low-temperature pressure gauge is at a low level, insufficient water flow will occur, which will lead to water flow alarm of the water chiller.”
Customer: “Then how to solve this problem?”
S&A Water Chiller: “The reason for the low level of low-temperature pressure gauge of water chiller can be divided into two kinds: firstly, the pressure gauge has faults; secondly, the water pump of the water chiller has faults.”
S&A Water Chiller: “Block the water outlet and inlet of the water chiller, and observe whether the water chiller can reach the maximum head. If it can reach the maximum head, then the pressure gauge doesn’t have faults, and the problem can be solved just by replacing the water pump of the water chiller; if the water chiller can’t reach the maximum head, then the press gauge possibly has faults. You can replace the pressure gauge, and observe whether the low-temperature gauge of the water chiller can recover to normal.”
All S&A water chillers have passed the certification of ISO, CE, RoHS and REACH, and the warranty period has been extended to two years. Welcome to purchase our products!
More about S&A chiller: http://www.teyuchiller.com/product/

 

water chiller

CONTACT S&A

TE:+86-20-89301885

FAX:+86-20-84309967

SKYPE: teyuchiller

Email:marketing@teyu.com.cn

Website: http://www.teyuchiller.com

2 weeks ago

In case S&A CW-6100 water chiller is shipped by air, how to discharge refrigerant?

Customer: “Hello, in case S&A CW-6100 series of water chiller is shipped by air, it is needed to discharge refrigerant, then how to discharge?”

S&A Water Chiller: “Hello, you arrange discharge yourself, right?”

Customer: “Yes. If the procedures are easy, I can directly arrange working staff to discharge.”

S&A Water Chiller: “Some procedures including welding and vacuum pumping are required.”

S&A Water Chiller: “About the procedures of pumping refrigerant of chiller, firstly, find out the filling capillary tube of the water chiller; secondly, cut the top end of the filling capillary tube and weld charging valve; thirdly, connect the equipment for pumping refrigerant (such as vacuum pump and vacuum machine) to the charging valve; generally, the time for vacuum pumping shall be more than half an hour (depending on the quantity of refrigerant).”

Thank you so much for your support and trust in S&A. Above is about detailed procedures of pumping refrigerant of water chiller. But S&A suggests that this should be operated by professional technicians. All S&A water chillers have passed the certification of ISO, CE, RoHS and REACH, and the warranty period has been extended to two years. Welcome to purchase our products!

S&A has a perfect laboratory test system to simulate the use environment of water chillers, conduct high-temperature test and improve quality continuously, aiming to make you use at ease; and S&A has a complete material purchasing ecological system and adopts the mode of mass production, with annual output of 60000 units, and this can give you confidence.

The technical parameter of CW-6100: http://www.teyuchiller.com/Products/ChillerCW61004200Wco.html

chiller

CONTACT S&A

TE:+86-20-89301885

FAX:+86-20-84309967

SKYPE: teyuchiller

Email:marketing@teyu.com.cn

Website: http://www.teyuchiller.com

2 weeks ago

The cooling of Max 500W fiber laser with S&A CW-6100 dual-temperature water chiller

Customer: “Hello, I have a Max 500W fiber laser which needs a matched water chiller. Could you help me match a water chiller?”

S&A Water Chiller: “Hello, we recommend you to use CW-6100AT dual-temperature dual-pump water chiller with 4200W cooling capacity.”

Customer: “I have seen the parameters of the CW-6100AT series of water chiller just now, and I’d like to know what is the cooling water temperature and outlet water temperature at room temperature?”

S&A Water Chiller: “As CW-6100AT water chiller belongs to dual-temperature dual-pump series of water chiller, specially designed for fiber laser, which has two independent temperature control systems, including high-temperature end and low-temperature end. The low-temperature end mainly cools fiber body, and cooling water temperature can be set; and high-temperature end cools QBH connector or lens, which generally adopts room-temperature cooling, with water temperature two degrees lower than ambient temperature.”

Thank you so much for your support and trust in S&A. All S&A water chillers have passed the certification of ISO, CE, RoHS and REACH, and the warranty period has been extended to 2 years. Welcome to purchase our products!

The technical parameter of CW-6100AT: http://www.teyuchiller.com/Products/Singlepumpdualtempch.html

 

chiller

CONTACT S&A

TE:+86-20-89301885

FAX:+86-20-84309967

SKYPE: teyuchiller

Email:marketing@teyu.com.cn

Website: http://www.teyuchiller.com