LAARS MFTHW DHW Priority with an Indirect Tank and Zone Panel

LAARS MFTHW DHW Priority with an Indirect Tank and Zone Panel

ATTACHED is a SAMPLE wiring diagram for wiring a DHW Indirect (notice the additional "RIB" relay as an add on, NOT supplied)with MFTHW boiler(s).

This addresses the ability of using a DHW sensor in the indirect tank while maintaining

DHW PRIORITY with zone panels!  Remember to select DHW SENSOR in parameter 39:SA ! The default is AquA(aquastat) , so you will have to select Sens (sensor).

 

The wiring diagram shows cascaded MFTHW's BUT this can also be followed for a

Single boiler application as well .

 

If any questions speak with Kenny or Don.



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