929185-00 | Heat-Timer | VSP inVariable Speed Pump Controlin

The low cost, energy efficient VSP-Elite provides more precise control of pump speed than any other similar product on the market. And it works great as an outdoor reset control or a set point control. The VSP-Elite adjusts the speed of a pump to control the amount of hot water injected into the heating/secondary loop. The VSP-Elite controls the injection pumps to a high level of precision, thus providing accurate control over the secondary loop temperature. Unlike other controls, the VSP-Elite can operate the pump at a significantly lower speed. Lower speed means more precise temperature control and higher overall efficiency. The VSP-Elite is designed with boiler protection in mind. It monitors the boiler return temperature and reduces the injection pump speed to increase the return in low critical return situations. Now, the VSP-Elite offers manual speed control for well balanced injection applications. Simply, select Manual Speed Control and then specify the pump speed that best fits the injection system.