this crankcase heater can be used on any compressor within the 6" to 7

Streamlined Installation: Utilizes a standard 4-wire ABCD bus connection for easy integration with the Damper Control Module

Can this unit be used for chilled water applications

and is not for use as an operating control

Viessmann 7856004 Pump Head L99H008 this crankcase heater can beThe Viessmann 7856004 Pump Head is a precision engineered Grundfos UPS15 78 B1KA replacement designed for high head hydronic applications. This boiler circulation pump assembly is the OEM solution for restoring hydraulic balance in Viessmann Vitodens 100 W and 200 series condensing boilers. Featuring a 3 speed motor configuration, this wet rotor circulator allows for fine tuning the flow rate to match the specific friction loss of the heat exchanger