Electric heating sets are commonly used in residential and commercial hot water systems to maintain desired temperatures in storage tanks. Installers working on plumbing and heating systems often integrate such components into central heating, solar thermal, or domestic hot water systems. The heating element is inserted into the tank and connected to the electrical supply, with the thermostat controlling the temperature to prevent overheating. The flange and gasket ensure a watertight seal between the tank and the heating unit. Proper installation is essential to ensure safe and efficient operation.

When selecting a heating set, the installer must consider the tank size, required power output, and electrical supply type. The heating element must be compatible with the tank’s internal dimensions and the system’s thermal requirements. The thermostat must be correctly positioned to monitor the water temperature accurately. The flange size must match the tank’s opening to ensure a secure fit and prevent leaks. The set is suitable for tanks in the QFS/QFDS/QF2DS series, which are designed for a range of domestic and light commercial applications.

Technical parameters

Code	301455
Brand	QUADROFLEX

The set includes a 3 kW heating element, a thermostat, a 6/4 inch flange, and a sealing gasket. The element length is 29 cm, and the electrical connection is three-phase. These parameters are essential for ensuring the correct fit and function within the tank. The power rating determines the heating capacity, while the flange size ensures compatibility with the tank’s opening. The material of the heating element and the sealing gasket are selected for durability and resistance to .

Installation and connection

Installation involves inserting the heating element into the tank and securing it with the flange and gasket. The flange is bolted to the tank’s opening, and the gasket is placed between the flange and the tank wall to create a watertight seal. The electrical connections must be made according to the manufacturer’s instructions, ensuring that the three-phase supply is correctly wired to the heating element. The thermostat is mounted in a location that allows it to monitor the water temperature accurately. Common installation mistakes include incorrect flange alignment, improper sealing, and incorrect electrical wiring, which can lead to leaks or electrical faults.

Compatibility and accessories

This set is specifically designed for use with Quadroflex QFS/QFDS/QF2DS water tanks with capacities from 200 to 500 L. The components are pre-assembled and ready for installation, eliminating the need for additional accessories. The stainless steel heating element is compatible with the internal dimensions of the tank, and the flange size matches the tank’s opening. No additional components are required for installation, as the set includes all necessary parts for a complete installation.

Technical background for designers

The heating element operates by converting electrical energy into heat, which is transferred to the water in the tank. The stainless steel construction provides resistance to corrosion and ensures long-term durability. The thermostat regulates the temperature by switching the heating element on and off based on the water temperature. The flange and gasket create a secure and watertight connection between the tank and the heating unit. The efficiency of the system depends on the correct sizing of the heating element, the accuracy of the thermostat, and the quality of the installation. The system must be integrated into the overall heating and plumbing design to ensure optimal performance.

Service and operation

Regular inspection of the heating element and thermostat is recommended to ensure continued performance. The flange and gasket should be checked for signs of wear or leakage. The electrical connections should be verified for proper wiring and insulation. No specific service intervals are provided in the brief, but routine maintenance is advised to prevent failures and ensure safe operation. The system should be shut down before any maintenance is performed to avoid electrical hazards.

Frequently asked questions

Can the heating element be replaced separately?
The set includes the heating element as part of a complete package. Replacement of individual components is not specified in the brief.

What is the maximum tank capacity compatible with this set?
The set is suitable for tanks in the QFS/QFDS/QF2DS series with capacities from 200 to 500 L.

Is the thermostat adjustable?
The thermostat included in the set is designed for standard temperature control. Adjustment options are not specified in the brief.

What is the electrical supply requirement?
The heating element requires a three-phase electrical connection for operation.