Water level safety device 933.1 with lock 0933.20.150

Water level control in heating systems – reliable protection SYR 933.1

This is a reliable water level safeguard, designed for installation in closed and open heating systems, effectively protecting boilers from running dry. The device with a lock (model 933.1) requires manual unlocking after activation, providing additional safety and control over the installation. This ensures that the installer is confident that the problem has been noticed and resolved by a qualified person.

The use of this type of protection is particularly important in installations with higher power (above 100kW) and in roof boiler rooms, but is also recommended in smaller installations to increase their reliability and safety. The ability to electrically monitor the water level allows integration with monitoring and automatic control systems, which translates into efficient energy management and minimizing the risk of failure.

Construction and application

The water level safeguard type 933 is characterized by a solid construction and a high degree of protection IP65, which guarantees its durability and resistance to environmental conditions. It has connections with two screw terminals for welding, which facilitates installation in existing installations. The device uses the principle of a float with a switching type electrical output – when the water level drops below the critical point, the electrical signal changes state, informing about the need to replenish the water.

Application:

• Central heating boilers (open and closed systems)
• Installations with a power above 100kW
• Roof boiler rooms
• Systems with automatic control and monitoring

Key features and benefits

• Lock after activation: Requires manual unlocking by an authorized person – increases safety and prevents accidental restarting of the system without replenishing the water.
• Durable construction: Housing with IP65 protection class provides protection against moisture and dust, guaranteeing long-term operation of the device even in difficult conditions.
• Wide temperature range: Maximum operating temperature up to 120°C allows use in various heating systems.
• High electrical load capacity: Load capacity 10(3)A at 250V enables connection to various control circuits.
• Easy installation: Connections with two screw terminals for welding facilitate integration with the existing installation.
• Versatility: Can be used in both new and modernized heating installations.
• Safety: Protects boilers from damage caused by running dry – minimizes the risk of costly repairs and downtime.