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The ESBE VRG 13x electronic mixing valve and CRA 110 controller are essential to control the
maximum water temperature entering the UFH system.
A second circulating pump, external to the Heat Pump, is required to maintain a constant flow through
the UFH floor loops. The mixing valve must be installed on the flow pipe before it enters the UFH
manifold and the pump between the mixing valve and the UFH manifold.
Follow the steps below to install and setup the mixing valve, controller, UFH circulating pump & by-
pass valve.
Installation
1. Identify the installation position and the orientation of the mixing valve in the system. The
orientation is either Clockwise or Counter clockwise
2. When the valve is installed, the spindle position must be set to match the installation orientation.
Victorum EAHP UFH ESBE
electronic mixing valve
C
A
D
B
3
1
2
C
A
B
D
1
3
2
A – Flow from zone valve
1 – ESBE VRG 13x mixing valve
B – Return
2 – UFH circulating pump
C – Flow to UFH manifold
3 – Flow temperature sensor
D – Return from UFH manifold
Legend
Clockwise
Spindle Identifier
Clockwise
Counter Clockwise
Counter Clockwise