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.



    • Related Articles

    • LAARS NeoTherm XTR Dual Element Domestic HW Tank Sensor

      This bulletin clarifies how to wire a domestic hot water (DHW) sensor to NeoTherm XTR models. The domestic water temperature sensor used with NeoTherm XTR models is a dual element style. This is a single sensor with two elements, to provide ...

    • LAARS FT 301/399 Cascading Instructions

      LAARS FT 301/399 Cascading Instructions Cascade cables Cascade programming Click on attachment to view

    • LAARS FT 301/399 Overview

      LAARS FT 301/399 Overview Dimensions Options Accessories Floor stand Click on attachment to view.

    • Rathe Laars Pro

      What are the Advantages of Becoming a Laars Pro? Advantages 7 Day Parts Availability 2 Years No Hassle Labor Allowance Extended Customer Support Video Advantages How Can I Become a Laars Pro? It's Easy!  Sign up for our next class here: Laars Pro ...

    • Laars FT and Tekmar 30x P, V, Zone Panels Modulating Signal ( 0-10V, 4-20mA)

      *Important* information regarding the use of Tekmar 30x Zone Panels with Laars FT Boilers..... When utilizing a Tekmar 30x zone panel with Laars FT boilers when Tekmar is selected to control modulation signal , ALWAYS make sure that the dipswitch (#5 ...