Complete MBW water coil mounting kits. Water flow and temperature control. Thermal insulation. 3 operating levels. Motor supplied: 24 VAC. Water temperature thermometer. Manual water shutters. Flexible ducts for connecting the water coil. Watertight seal to prevent leaks. AQUA 24TF temperature controller with 24VAC. 230V/24VAC safety transformer. Anti-frost sensor and duct. Anti-frost alarm contact: 24V and 230V 2A potential free contact. When the pump is not directly connected to the hot water system, the THE 16/4 A ambient thermostat must be used to start the heating cycle.