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@@mskengg sounds like the screen is faulty. Try changing it with one that works if you have another chiller of the same model to confirm it and order a replacement.

Thanks sir i have one more question if you don't mind after display change if we found same problem then what will do # And if we change the other small bord which is connected with bigg bord with battery from other working chiller then no any programming program

Sir i am waiting for your reply please sir I need your help

@@mskengg first start with the screen. Does the chiller run with the broken screen? If yes, then highly likely it's just the screen. No programming is required when changing just the screen. Lastly if you do not feel confident in the work you are about to do then I recommend seeking another person who can assist you with the task. Good luck and I hope it all works out.

Okay sir thanks i will do what you telling Last question sir please If i replaced Daughter board then required programming or no need

@@reyazahmad1792 hi, The 5 minute timer is normal for the protection of the equipment. It is an anti-theft cycle timer. Normally it happens when the chillers cycle off due to low heat load. Check your chilled wate

@@reyazahmad1792check your chilled water loop, be sure that a bypass valve is not open causing the equipment to short cycle.

@@reyazahmad1792 sorry, predictive text strikes again. I meant anti-short cycle timer, not anti-theft. 🤣

@@mskengg ok you need to select the refrigerant from the display. 1.System switch off postion. 2.program ...code up, up, down, down, 3. Scroll through all parameters until you get to system refrigerant and select the required refrigerant.

@@latentfusion2563 thanks sir i will try tomorrow after then I will give you feedback 💕😍

Thank you so much sir i appreciate you now solve my chiller issues thanks a lot💕💕💕💕💕💕💕

@@tditty2404 sounds interesting! If you can take a photo of the screen displaying the fault it would be helpful.

I can in morning. Thanks

I followed the instructions here but the settings don’t appear to be taking. The chiller is undiscoverable. Using a 3rd party BACnet program I can see it but it says its Instance is 5001 or 6500, depending on what property you look at. This device is on a campus with many Bacnet networks and devices. The instance number is 11101. It seems like “DE MODIFIER ADDRESS” is actually the network number. Would the instance be this number, plus the MAC address?

Yes it does.

Also, if you have more than one chiller, set the manual mac address to 1 for the first one, two for the second one and so on..

It can be for air conditioners but I utilized it more when working on refrigeration equipment during periods of low ambient outdoor temperatures.

Thank you.does it have anything to with the furnace the fan cycle control?

And how long can the thermostat be on hold and not on run?

Your very welcome!

It was the quick and easy actually. I took a Mason jar, a glue gun and a Schrader valve. Pop a hole in the lid and glue it in place. Hope it works, cheers

Thanks!@@latentfusion2563

Once the control is set it will maintain the head pressure year round with no need for adjustments.

4c is the cut in temperature. To achieve the desired room temperature of 2c we need a cut out temperature of -6c, "saturated evaporator temperature." Hope this helps.

While boiling!

There can be any number of reasons why compressor windings fail. I need to start by asking the question, is the motor internal or external to the screw compressor. I.e. does it have a shaft coupling?

Well the gray area is determined when the equipment is selected. Not all suppliers print the info in their catalogues but check your supplier catalog. In the section of evaporators, find a blower coil for a cool room. The details of the coil should be on the page, size, connections and capacity. Above the capacity it should state the evaporator T.D. Example: Btu/hr (10f TD) or (15f TD) this is the temperature difference between the coil surface and the room you are cooling. The TD should not be mistaken for the operating temperature of the coil. When dealing with C we refer to it as( K) TD for Kelvin. Hope the helps

Easier example, 2c is 35.6f room cutout temp. 15f TD would correspond to an evaporator temp of 21.6f or -6c.

Yes -6c is the standard saturated evaporator temperature cutout for most chillers and walk in cool rooms. Gravity coil display cases run colder though. Not to be confused with the actual room temperature. The evaporator needs to produce a temperature colder than what it is intended to cool. Law of thermal dynamics, "hot goes to cold." So by having a cold evaporator we can get the heat energy to flow from the product or room being chilled to the cold evaporator. Hope this helps

Same procedure as in the video for R404a but different numbers. For R22 cut in at -18C / 24 PSI DIFF Setting of 13 PSI, this will give you a cutout of -28C and a holding temperature of -22C. Hope this helps

@@latentfusion2563 thanks for support Can i get R404 refrigerant suction pressure in blast chiller

@@TheBijuf43 blast chillers work on the same principles as regular chillers except they are designed to do it quickly. This is why the condensing unit is so large and the evaporator has many powerful fans. We are still governed by the fact that we want to cool the food and not freeze it. Most blast chillers are controlled by means of a temp probe that can be directly inserted into the product being cooled. A pressure control would only be used as a safety device on this type of equipment. All the best.

It's ok lots to learn when it comes to refrigeration, that's what makes it interesting. Blended refrigerants, R400 series, have what is known as glide while changing from a vapor to a liquid during the condensing process. This glide is not a factor when setting a low pressure control due to fact that we are dealing with the evaporator. A condenser operating with glide refrigerants, there are three temperatures of special interest: the dew point (the highest condensing temperature), the mean condensing temperature and the bubble point (lowest condensing temperature), which is achieved just before all refrigerant has been transformed to liquid. Hope this helps