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Proper wiring of MC-80 Hydronic System

RhynORhynO Posts: 5Member
I have an HTP MC-80 which has supplied my house heat/hot water for 9 years.
My plumber was over and recommended that I wire it properly...
I have no idea what would go where.
It's been set to just make 170 degrees it's whole life.
Has a passive hot water tank with a probe (probe wire is not attached to anything). The main pump is always circulating the 170 thru the passive water tank (loop I guess?). This pump is wired into the CH P1. It turns off only when the boiler power is turned off completely.
There is a thermostat in my basement that is not wired to anything. The basement is radiant heat and has a mixing valve set to 20 degrees and it's own pump that is on continuously.
Pics of what I have going on...








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Comments

  • SteamheadSteamhead Posts: 12,798Member
    You need someone who does know what goes where. Maintaining temp like that is incredibly wasteful. Where are you located?
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
    https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc
  • ZmanZman Posts: 4,752Member
    edited April 13
    I looks like it was piped incorrectly then they could get the controls to work so they jumped it out.
    Can you post closer pictures or a sketch of the piping?
    What type of heat does the garage have?
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • RhynORhynO Posts: 5Member
    Steamhead said:

    You need someone who does know what goes where. Maintaining temp like that is incredibly wasteful. Where are you located?

    Located in Northern Alberta Canada.
  • RhynORhynO Posts: 5Member
    Zman said:

    I looks like it was piped incorrectly then they could get the controls to work so they jumped it out.
    Can you post closer pictures or a sketch of the piping?
    What type of heat does the garage have?

    I’ll get some closer pics today. The garage is heated by a radiant fan with a thermostat set up. I’ll take a pic of that as well.

  • RhynORhynO Posts: 5Member
  • RhynORhynO Posts: 5Member
    Here's a diagram of the system. As well as what I hope are better pics.














    Any help is certainly appreciated.
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