Water from the water heater is drained before a period of inactivity. You need to know how to turn off the boiler correctly in order to extend the life of the tank and heating element. You can gravity drain the liquid, close the taps, connect the pipes, but 1-2 liters of water will remain in the unit, which will contribute to the appearance of rust. In these cases, removal of the water heater is required.
Tools and materials when turning off the boiler
You will need a variable wrench with movable tool steel jaws to turn off the nozzles. Bolts for fastening to the partition are unscrewed with a wrench. The tool is not needed if the boiler is hanging on hooks.
A hose is being prepared for the check valve or fluid inlet. A safety screwdriver is disconnected with a Phillips screwdriver. Flat (slotted) screwdrivers are needed to pry it and pull it out of a tight socket.
Instructions for turning off the boiler
Before releasing the boiler, preparatory work is carried out.
- Switch off the power to the unit. The plug is pulled out of the socket or the machine is turned off. An indicator screwdriver is taken and the presence of electricity on the contacts is checked.
- The water tap in the apartment is closed. If this is not the case, fluid intake is stopped by a valve in the basement.
The boiler can only be emptied of water after it has cooled. After turning off the electrics, you need to wait for the liquid to cool. Then the pipes are removed from the boiler, through which water is supplied.
Long-term shutdown
Sometimes you need to turn off the boiler for the winter and drain the water. Microorganisms multiply in a liquid without heating. If the unit is in an unheated building, the water will freeze, the boiler tank will burst. It is recommended that the heater be turned off and dismantled if there is a change in the unit or decoration in the room.
Boiler shutdown sequence:
- stop heating by turning the heater off;
- block the taps of cold and warm fluid flowing to the unit, the water will remain in the tank and will not merge;
- open the check valve on the body.
Sometimes there is an automatic valve that provides water to other rooms in the wiring of a hard type.
Disconnect with dismantling
The boiler must be disconnected and removed from the partition. It is impossible to dismantle the boiler, in which the tank is filled with liquid inside, it is necessary to drain it in order to reduce the weight of the tank.
The order of discharge and dismantling:
- shut off the valve on the hot tube;
- substitute a drip vessel or direct a sleeve into the bath;
- to disconnect a joint of a cold riser and a protective hydraulic valve;
- unscrew the nut connecting the valve to the cold line fitting;
- regulate the flow by opening the valve;
- the water will go away in a few minutes.
It is easy to remove the unit if it is located on hooks. Dismantling requires care not to damage parts.
Turn off and on hot water
The city highway can earn money again, then you can turn off the boiler if you are given hot water. The plug is unplugged and the contents cool. You can drain half the liquid and add cool so that the process goes faster.
To drain, the tap on the cold pipeline is closed and the corresponding pipe is disconnected.A hose is put on the free end and placed in the sink. The valve is unscrewed and the drain valve opens. The mixer turns to a hot position. After that, the feed valve from the city water supply is turned on.
Reasons for shutting down the boiler and recommendations for self-disconnecting
Conservation of the unit is carried out in conditions of lowering the temperature in the house below + 5 ° C. It is impossible to leave the heater without water for a long time, because oxygen causes corrosion. Regular use of the unit also requires periodic cleaning of the rust.
Scale acts as a heat insulator and neglect of cleaning leads to the fact that the heater warms itself and a layer of rust. At the same time, electricity consumption increases by about a quarter. Manufacturers recommend draining the water once a month, then turning it on again.
Water outages
Sometimes the water utility warns of problems with the supply of a certain branch of the water conduit. If this lasts a long time, it is better to drain the flow through the protective throttle, which is needed for drainage when the internal pressure in the tank increases.
Stop serving. Twist the sleeve from the hot outlet to organize air intake. The handle on the valve is opened, flow will flow from the nozzle. Drain into a toilet or bath if a hose is put on the spout. So the drain lasts a long time, more than two hours, the time depends on the clogging of the nose.
Lack of hot water
Sometimes a tee with a valve cuts into a piece of pipe to the safety valve.
Algorithm of actions:
- disconnect from the network, shut off the supply, open the tee tap;
- open the hot water tap on the mixer, the flow will go through it;
- the valve on the tee is not closed so that air flows;
- shut-off valve is closed after the end of the drain.
The procedure lasts several hours. Accelerated by removing the sleeve from the cold feed tube.
The quick drain method is through two nozzles. The cold and hot branch are sequentially disconnected. The liquid simultaneously leaves two nozzles, the tank is quickly released. With such a drain, there is no control of the flow rate, so the method is used if the boiler hangs above the bath.
Boiler breakdown
The first time (about two years) the design does not require maintenance, then there are signs of poor-quality operation of the unit. Water takes on a rusty hue, there is sand, scale particles. If the tap water is of poor quality, cleaning will be required much earlier.
Landmarks indicating the need for prevention:
- TEN starts to make noise when turned on;
- the device turns on and off more often than usual, the fuse blows;
- heating time increases;
- when using, it is shocking, the body is leaking.
The cover is removed after unscrewing the bolts near the fittings, the power supply circuit becomes visible. Here is the thermostat, which is removed by a sharp movement down.
Features of switching off various boiler models
Sometimes the manufacturer does not allow the user to turn off the boiler, otherwise the warranty period ceases to apply. Each model has its own characteristics that you need to know in order to drain yourself.
Ariston
First, a cap is screwed up at the top of the mixer and the cold branch is blocked, the taps of the mixer, the shower hose is removed. At the outlet and inlet, the valve is removed, and nuts made of plastic are screwed. After removing the cap, the screw is loosened on the mixer, the handle and gaskets are removed.
The boiler body is disconnected from the tank inside, but cannot be removed. The plug is opened, and drainage occurs through the hole that appears.That there was an air intake, the valve does not close.
Termex
To properly turn off the Termex boiler, you need to remove the touch screen. The cable connects the control and external board, it is disconnected from the power module and a thin cord of 1.5 meters is connected. After that, the sticker of the touch screen is removed, the panel of the indicating device on the screws becomes visible.
The hardware is unscrewed, the module and cable are removed using a cord. The heater is mounted on one nut, which is unscrewed counterclockwise.
Electrolux
Drainage is done through a standard hole in the safety valve or a pre-cut tap is used. The cold water supply and power are turned off. At the level of the drain sleeve, a pipe is placed along which liquid flows. The hose is placed in a sink, bath or toilet.
Other
Gorenje brand boilers merge according to the standard algorithm. The power is turned off and the faucet from which hot liquid flows. After complete removal of water, a hose is put on the cold pipe and discharged into the drain tank. The cold-feed tap opens to allow air to flow, with residues draining.
Removing fluid from the Aquaverso brand heater is not difficult if the hitch and connection were made correctly. The standard algorithm is to close the water, turn off the boiler, drain the liquid through the valve.
