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Three Zone Heating System

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  • 27-12-2013 9:38pm
    #1
    stephentbb2000
    Registered Users Posts: 169 ✭✭


    Hi,

    I have a three zone heating system (water, up and down stairs) and a back boiler stove. This morning my wife turned on the water only and it started to heat the down stairs rads as well (never happened before). Turned it on and off and reset the panel (sauter T37) but no luck with the same problem occurring.

    Checked all the actuator valves (yellow box on the pipe) to make sure they were opening and closing and they were. So back to the control panel once more to try again. This time there was no power going to the boiler or actuator valve when the water zone was pressed. The other two zones are working fine as so is the back boiler.

    Is it the control panel or something else. Any help would be appreciated.


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    #2
    stephentbb2000
    Registered Users Posts: 169 ✭✭stephentbb2000


    Changed the thermostat temperature for the water zone and its working again so its back to square one. When I turn on the water heating zone it heats the downstairs rads as well?

    Why is this and what can I do?


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    #3
    Egass13
    Registered Users Posts: 1,056 ✭✭✭Egass13


    stephentbb2000 wrote: »
    Changed the thermostat temperature for the water zone and its working again so its back to square one. When I turn on the water heating zone it heats the downstairs rads as well?

    Why is this and what can I do?

    Sounds like downstairs actuator is open , take it off and manually close the valve and see if the rads still heat . Have you got the eph/saunter actuators ?


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    #4
    stephentbb2000
    Registered Users Posts: 169 ✭✭stephentbb2000


    Thanks for the help Egass, problem was with the downstairs actuator, replaced it today and all working well. To be honest I taught they would be good for more than 3 years!


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    #5
    Egass13
    Registered Users Posts: 1,056 ✭✭✭Egass13


    stephentbb2000 wrote: »
    Thanks for the help Egass, problem was with the downstairs actuator, replaced it today and all working well. To be honest I taught they would be good for more than 3 years!

    I replaced the 3 of mine within 2 yrs when I moved into my house , they wer the heat merchants valves, put in myson and their still goin strong 5 yrs later.


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    #6
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Egass13 wrote: »
    I replaced the 3 of mine within 2 yrs when I moved into my house , they wer the heat merchants valves, put in myson and their still goin strong 5 yrs later.

    Yeah, they were the Horstmann valves, total piece of crap. Sauter are just a smidgen above them but at least they come with a 5 year warranty & the head has the detachable wiring mount.

    I only fit Myson but Danfoss & Honeywell are pretty good also.
    I fitted a Myson a couple of months ago though, & had a call back for pressure drop. Turned out to be a leaking valve base through the inner stem seal.


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    #7
    scudo2
    Closed Accounts Posts: 2,008 ✭✭✭scudo2


    I've come across 3 Heatmerchants/ horseman valves that have burnt out at the plug in connection.
    Anybody else ?


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    #8
    jigsaw50
    Registered Users Posts: 4 ✭jigsaw50


    Hi Guys,
    Any thoughts on a New Building Plumbing and control recommendation. Apologies for butting in on your thread but you both sound like you have similar systems that maybe I could learn from.
    My house is 3000 sq foot.

    There are 24 rads in total. TRV's on all rads. Actual total BTu's of the rads 127,000 BTU.
    I think i will be putting in 3 zones. DHW, upstairs and down.
    I will have HP400 4m2 of kingspan solar. Currently spec'ed as a kit. Is it cheaper to purchase the separate components ???(pump,controller etc)
    I will have a Grant Vortex Oil 90/120 boiler.
    I will have a Stratford eb25 stove boiler which when all will heat the rads..
    The tank is tripple coil. 300lt.

    No sure on the control strategy. Thermostats (How many, what location, Type, temp display or not) & timeclock etc. Plumber and electrician both recommend Horstmann. Looked at amazon and Honeywell and Danfoss both look to be popular. Also was looking at NEST but do not think it is available in Ireland.

    I was hoping to be able to control or monitor the heating system from my smart phone ?

    Currently living in rented house while build is happening. This house has oil burner and it ant half thirsty!! Starting to think that not putting air to water with heat pump in new build was a bit of a mistake.:-(




    Tks


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    #9
    dingding
    Registered Users Posts: 4,931 ✭✭✭dingding


    Have a look at the climote for controlling the heating system I have one and it is great. I think the nest is designed for United States heating and cooling systems and won't work with this setup.

    With the Climote I have used a 2 way switch and some relays so I can select to heat the water either by oil or electricity.

    http://www.climote.ie/

    The ESB sometimes have offers on installing it.

    There are also a number of wifi systems but I dont have direct experience with these.


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    #10
    corkgsxr
    Registered Users Posts: 3,404 ✭✭✭corkgsxr


    If you insulate enough oil is fine. Big difference between a older house and a new one


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