Guidance on the Onshelf and Maintenance of Bitmain Antminer Z15 in Low-Temperature Areas

An in-depth manual for Bitmain Antminer Z15 Onshelf and Maintenance in Low-Temperature Areas is provided here.

Some cold regions can experience low temperatures of minus 10 to 20 degrees Celsius, which is different from the Bitmain Antminer Z15’s preferred working temperature of 0 to 40 degrees Celsius. With the help of this manual, you can prevent and fix problems like burnt hashboards, missing hashboards, missing chips, low-temperature protection, high-temperature protection, and temperature failure brought on by low temperatures.

Read more: Bitmain Antminer Z15 Normal Operating Temperature Range

I. Inspections before Installation

1. Jolts and collisions could occur while in transit. Shake the Bitmain Antminer Z15 to look for any loose heat sinks. If the miner makes an unusual noise, the heat sinks could separate during transport. Don’t proceed with the installation.
2. The temperature can be very low in some chilly areas. After a long journey, the miner’s internal temperature could be much lower than zero degrees Celsius. Once the equipment has been unpacked, please warm it up for 30 minutes under 25 degrees Celsius (in a hot air area, for example, in a mining farm), then set it up on shelves.

*As the miner warms up, the water vapor inside the device is spread out and the temperature of the miner is raised. As little moisture as possible should be present in the miner’s preheating area.

II. Preparation before Powering-up

When it is working and above 0 degrees Celsius, the Bitmain Antminer Z15 miner will go into protection mode at a temperature of minus 5 degrees Celsius. If the air entering the miner is colder than minus 5 degrees Celsius, it must be warmed up before use. The method of warming up is as follows:

• Adjust the airflow
  Send the heated air that was released from the miner back into the cold air zone. Change the miner’s angle and rotational direction. The incoming air temperature can be raised by adjusting the amount of incoming and outgoing air (while making sure that neither is obstructed).

*Note: To avoid extreme situations like single-point heating or air blocking, make sure the miner is heated evenly during preheating.

III. Operation After Booting

1. Verify that the firmware is the most recent version . Before setting up the pool, you must update to the most recent firmware if it is not already there. Visit our Bitmain Antminer Z15 firmware page to get the latest version of the firmware.
   *Please double-check the MD5 value after downloading the firmware.
   
   Please use one of our suggested browsers, Google or Firefox, when upgrading a single machine via the website. Upgrade problems could arise if you use a different browser. Before continuing, please restart the miner if the following issue arises during the upgrade.

For batch upgrades, it is advised to use the BTC tool or the Antpool batch tool.

2. Notes on Firmware Upgrade

• Please try to update the firmware at noon because the low temperature is harder to form at that time. Depending on the actual circumstances of the mining farm, you may need to adjust the Bitmain Antminer Z15 miner’s angle and position or install more heating equipment to raise the temperature at the air inlet. To sum up, avoid turning on the low-temp protection mode because doing so prevents the miner from starting.
• It is preferable to upgrade the firmware one shelf at a time rather than all of them at once. If everyone is upgraded, the hot air volume would drop when the miners abruptly stopped working, where a collective low temperature would form. When upgrading one shelf at a time, the adjacent and opposite shelves are still functional while the upgraded shelf is being used, and some missing hot air can spill over, which is generally better.
• When upgrading a miner shelf, start with the top shelf and work your way down. The others in the bottom area are still operating while the ones in the top area are being upgraded, which also helps the temperature of the air inlet of the upper machine to meet the requirements.
• You can configure your IP address and mining pool once you’ve made sure your device is running the most recent firmware.
• If you are unsure how to determine whether the miner is running the most recent firmware, please use the BTC tool offered by our business to scan the machine status once, export the.csv file, and send it to our customer service (the file naming format is name + scan time.csv).

IV. Attentions During Operation and Maintenance

1. After the firmware upgrade is completed, if the hashboards missing issue still happens frequently, you can use the function of “locate” to light up the Locate the Bitmain Antminer Z15 miner using the LED on its management page, then try to unplug it, wait for at least a minute, and then turn it on. 2. If the aforementioned approach fails to resolve the issue, you can try shaking the miner while it is unplugged to hear if any heat sinks are in danger of falling off. It needs to be fixed if the heat sinks or chips come off.
2. If there are too many anomalies, such as a missing hashboard and a low hashrate, kindly get in touch with customer service.
3. When the temperature is extremely low or high, the machine will automatically go into protection mode. When the temperature stabilizes, it should be used right now. Repeated restarts should be avoided in extremely cold or extremely hot conditions as this could harm the equipment.
4. *Notes on restarting