crimping essence lies in that the heating system is injected under pressure the liquid which displaces the accumulated air.The result will be revealed any violation of integrity, which must be resolved before the full system commissioning.

Preparation



to conduct quality tests better to wait for a stable weather, becauseat that time the atmospheric pressure remains constant.To download the water in the system will need vibronasos;for example, it can be "Aquarius", "cricket" "Belamos" or similar unit.Also requires a source of water or container, the amount of liquid which corresponds to the volume of the heating system.To control the pressure gauge stock up.If there is a likelihood of debris during installation of pipes and radiators int
o the system, it is necessary to wash it;while filling the water to start with the lowest point (drain cock).Do not forget to play off the air at the same time;in the presence of automatic control valves are not required.

Crimping



first to the drain valve using hose clamps and attach the fuel pump to be immersed in water.In the "gap" between the drain valve and install a pressure gauge unit, do not forget about tightening clamps.Then open the drain valve and turn on the pump.During filling the system, make sure that the pump is constantly immersed in water, is also controlled by a pressure gauge.The optimum value for testing - 2-2.5 atmosphere.However, after pressure testing the system you must fill in the coolant only up to 1-1.5 atmosphere, becausea further increase in pressure will occur due to heating.

After the gauge has issued the necessary evidence, disconnect vibronasos and close the drain valve to prevent reverse flow of coolant.The next step - bleed air through an automated system, valves or bleed screw.If, after this procedure, the pressure has dropped below the 1 st of the atmosphere, the water injection must be repeated, re-opening the drain valve and turn on the pump.Once the pressure is restored to normal, turn off the pump again and close the drain valve.Now we need to wait 7-8 hours, during which we can determine the presence of possible leaks.This can be done visually or on the pressure gauge (pressure will fall).If leaks are found, the water will have to merge and eliminate the disadvantages.