Hot Water Pump — Model Range

Choosing a TQCN or HQCN Hot Water Pump

The TQCN and HQCN series are electronic control pumps rated for liquid temperatures up to +90°C, which separates them from cold-water pressure boosting pumps. Each unit combines pump, motor, pressure tank and electronic controller in one housing. The controller starts the pump when hot water is drawn and runs it until demand stops, and anti-cycling logic prevents repeated starting caused by a dripping tap or minor leak.

Hot water systems expand as they heat up, so these pumps include an automatic relief valve that releases pressure when full system pressure exceeds 5 kg/cm². Construction uses corrosion resistant materials, and a built-in thermal overload protects the motor against high temperature and over-current.

The TQCN series covers 0.18 kW to 3.7 kW. Models up to 0.75 kW have 1 inch connections; the 1.5, 2.2 and 3.7 kW models have 2 inch connections (the 3.7 kW model is three-phase only), delivering up to 50 m head and 270 L/min at 60Hz. The HQCN series covers 0.18 to 0.75 kW, single phase, with up to 120 L/min. Preset pressures range from 1.2 to 3.0 kg/cm². For a single bathroom or small kitchen a 200 or 400 model is often enough; larger properties and light commercial premises may need the 2 inch TQCN models.

• Typical uses: domestic and light commercial hot water supply, boosting hot water from mains or private systems
• Check the phase and voltage of your supply before choosing
• Request a quote from Valvenok's UK team