| 1. To lower the thermostat and the thermometer in bank with OZh of demanded structure (see fig. Thermostat check). |
| 2. To deliver to bank on an electric tile and to warm up OZh. To watch OZh temperature on the thermometer. |
| 3. The valve of the thermostat should be completely open at OZh 102°С temperature ± 3°С. If the valve is open not completely, to replace the thermostat. |
| 4. To check, that at completely closed valve of the thermostat the spring was compressed. Otherwise to replace the thermostat. |
