Despite our reservations, it is certainly a very interesting challenge. logically, one would think that it should work in some fashion or other, if not perfectly, some design guru went to the trouble of putting this package together with the Kanmor 361 and the injection pump etc, if you have any links to its setting up you might post them.
Re the injection pump control which is one of the key components, the speed/frequency is controlled by the Kanmor but this is only designed for the older type of circ pumps (see quote) some of the newer types can be externally controlled, but only by a PCM (pulse width modulation) signal which is plugged into the pump motor. I wonder was your injection pump changed out sometime for the present Alpha 2L which cannot be speed controlled IMO by the Kenmor.
Quote:
HVAC Systems
The Mixing Control 361 is designed to operate a mixing pump using Outdoor Temperature Reset. It can be used in applications ranging from in-floor radiant to commercial baseboard systems for Boiler Return Protection with full reset. This control regulates a single heating water temperature through Mixing Outdoor Reset. It provides mixing by speeding up or slowing down a single permanent capacitor (standard wet rotor) circulator, and provides control of the mix system pump. Unquote.