1. Installing the Indirect Ferroli 30 Liter MIDO SQ Hot Water Heater
The Ferroli 30 liter MIDO SQ indirect hot water heater is not too difficult to install, but for electrical safety, it's advisable to follow these steps:
1.1. Step 1: Determining the Position to Hang the Ferroli MIDO SQ Hot Water Heater
- First, you need to determine the location where you want to hang the Ferroli 30 liter 2500W MIDO SQ indirect hot water heater to drill and insert expansion screws into the hole. Then, tighten the hanging hook to bend upwards. Next, observe the distance between 2 hanging holes for each type of tank to drill 2 holes on the wall fixed with a diameter of 12mm and a depth of 70mm.

- Next, after fixing the hanging position, proceed to lift the tank up, place the Ferroli 30-liter MIDO SQ indirect hot water heater on it, then pull it down tightly along the vertical direction. Make sure the tank is securely hung on the wall hook.
- Finally, observe whether the 30-liter 2500W MIDO SQ Ferroli hot water tank fits snugly with the hanging bracket. If there is still a gap between the tank and the bracket, do not insert any objects or paper to secure the tank as it will be very dangerous. In this case, you must request the installer to drill a new hole suitable for the tank to ensure the tank is securely hung.
1.2. Step 2: Guide for Installing Water Pipes for Ferroli MIDO SQ 30l Hot Water Heater
First, insert the safety valve into the cold water line of the Ferroli MIDO SQ 30l hot water heater (tube with green plastic dome). When tightening, be careful not to tighten the safety valve too much to avoid jamming the internal parts of the valve (3-4 turns) or sometimes breaking the valve due to excessive water pressure.
Then, connect the hot water line to the outlet tube of the Ferroli MIDO SQ 30l hot water heater (tube with red stripe) with rigid metal tubing. Because metal tubing is durable and can withstand long-term exposure to the hot water temperature of the tank flowing out when used daily.
*Note: It is advisable to connect the water supply line to the Ferroli 30-liter MIDO SQ indirect hot water heater to the bottom part of the safety valve with flexible tubing for convenience in maintenance as well as easy repair of the Ferroli MIDO SQ 30l hot and cold water tank.
1.3. Step 3: Electrical Installation
Electrical installation must match the tank's power to avoid overload, which can lead to dangerous explosions or fires for users. Specifically, the Ferroli 30-liter 2500W MIDO SQ hot water heater needs to have a grounding wire securely attached to the power supply's grounding wire to ensure safety.
1.4. Step 4: Inspection
After completing the above 3 steps, you should double-check whether the Ferroli MIDO SQ 30l hot water heater is in place, running smoothly, with stable water flow, and without any leaks. If a preliminary check reveals no issues, consider the installation satisfactory.
2. User Guide for Indirect Ferroli 30-liter MIDO SQ Hot Water Heater
To safely use the Ferroli MIDO SQ 30l hot water heater after installation, follow these detailed instructions:
2.1. Step 1: Turn On the Ferroli 30-liter 2500W MIDO SQ Hot and Cold Water Tank
First, check if the tank is filled with water. If it's full, simply flip the switch and select the control knob to the open position.
2.2. Step 2: Adjust the Suitable Water Temperature
To adjust the water temperature, ensure the LED light transitions from green to red. Once the LED turns red, turn clockwise to gradually decrease the water temperature until it reaches the MIN mark. Conversely, turning closer to MAX increases the water temperature.

2.3. Step 3: Automatic Temperature Control
After setting the appropriate temperature, the Ferroli 30-liter 2500W MIDO SQ indirect hot water heater will automatically control the temperature. When the LED light changes from red to green, the heating process is complete. If the LED light returns to red, the temperature inside the tank is set below 6 degrees Celsius.
2.4. Step 4: Using Hot Water
Some instances where the water is not hot enough even when you've selected the maximum temperature level. This could be due to the water supply being too cold or the pressure being too high. In such cases, adjust the inlet valve to reduce water flow, allowing the water to gradually heat up.
2.5. Step 5: Turn Off the Heater if Not in Use for Extended Periods
Usually, when installing the Ferroli MIDO SQ 30l hot and cold water tank or any other brand, there will be a quick on/off switch to allow users to preheat the water 10-15 minutes before use and turn it off before bathing.
However, if you're away for an extended period or won't be using the hot water tank during the summer, for safety, it's best to directly turn off the hot water heater's power on the tank. Simply turn the control knob to the OFF position on the hot water tank.

3. Proper Maintenance of the Indirect Ferroli 30-liter MIDO SQ Hot Water Heater
After using the Ferroli 30-liter MIDO SQ indirect hot water heater for some time, sediment buildup may occur, requiring maintenance every 6-12 months to ensure long-term durability. If unable to do it yourself, you can seek the assistance of a maintenance technician. Maintenance includes:
- General Exterior Inspection: First, the maintenance technician will conduct an overall external check of the machine, including electrical wires, power sources, tank casing, etc., to see if there are any abnormalities, rust, or parts that need replacement.
- Flush the Tank: For Ferroli hot and cold water tanks, including the Ferroli MIDO SQ 30-liter model, the company has installed a dedicated sediment drain button, making it easier to flush and clean the tank. However, during the tank flushing process, you need to turn off the power and close the water valve. Then proceed to remove the sediment drain valve to eliminate dirt. Once the water in the tank is drained, you can add more water to completely remove all dirt.
Above are the usage instructions for the Ferroli 30-liter MIDO SQ indirect hot water heater in all 3 stages: before, during, and after. You can refer to these for guidance. We hope the useful information shared by Mytour.vn will make it easier for you and your family to use the product. Stay tuned and follow us for valuable daily updates!
