Three of four zones, baseboard heat, warm house, why not fourth
Just the other day the upper floor zone baseboard heaters stopped working and that floor is not at about 60 degees F. I replaced the zone valve in case that was the problem however the pipes for that zone remain cool while all of the others are very hot.
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Re: three of four zones, baseboard heat, warm house, why...
Go to the last heater in the zone and look for a bleed off valve so you can get the air out of the system. you may have to bleed it off several times as the air works itself thru the system. usually there is a automatic air vent on the very highest point that the system has. Let me know if this helps and have a Merry Christmas
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Boilers are set at 180 degrees which gives between 550 and 600 degrees per foot of baseboard depending on the brand. You can change the aquastat setting to 200 degrees which will give more heat, but that may not be your problem. Your system may not be balanced properly. If there is too much baseboard(BB) near the thermostat, it may shut down the boiler before it is warm in the back room. You can close the dampers near where the stat is, and fully open the dampers in the cold room. There is also the possibility that you need to purge some air from the system.
The best solution would be to split off with another zone if none of this works. I'm assuming you have a CG-3, but what size is your house? Is there an indirect fired water heater that uses the boiler to heat domestic water? If you have a cg-3 and your house is over 1000 sq feet, then your boiler is undersized. Good luck!
Good clues to work with-- Let's review how you wired up the Zone Valves, in relation to the Boiler Control panel...
You say the upper zone does NOT SHUT DOWN-- Does that mean it is OPEN ALL THE TIME?-- (even when the circulating pump is OFF? ) That sounds like the thermostat is not even in the circuit, then.
Have you been able to cycle each of the valves thru their cycles-- Open- and then closed? -- It almost sounds like you have an interconnection between the two valves-- is this possible?
Each Thermostat has to control its valve only... and most systems do this thru a control panel at the boiler-- So-- How is your control panel connected to the 2 thermostats, and how are the 2 zone valves connected to the Control board?
Are you following a wiring schematic for hooking the valves and thermostats to the control board? There should be a schematic with the new valve you must installed, right? did you wire it like the instructions showed?
Hello.Prob#1 valve has a bad END SWITCH,change the power head,thad brings the circ on when open.Prob#2 try manual overide lever.iS IT TIGHT OR SMOOTH?DOES IT JUMP/SNAP?motor very hot? all bad signs.Change that power head too.The transformers are OK because 1 trans can only run 3 valves max.
Okay couple questions here because either you have hot water baseboards or you have electric baseboard heaters.
- if the system is a hydronic baseboard heater fed form main boiler, usually this means your space heat is controlled by a zone valve which the zone valve is controlled by your thermostat.
-if you find the zone is controlled by a zone valve than it is possible the zone valve is defective causing hot water to bleed past the zone valve even though your t-stat is telling it to close.
- first find out what excatly the baseboard is heated by either water or electricity
-next personal message me and I can walk you through it
Most Boiler and zone controlled systems I can remember working on with up to 8 or so zones, the Bell&Gossett circulating supply pumps or pump ran all of the time to keep the upstairs baseboards warm.If you have a relay that controls the pump, see if you can bypass it and if it comes on, replace it. Be sure all of the coils on the zone valves are energized and opening, if it is set up that way.Get back to me and let me know. Sincerely, Shastalaker7
Well with a boiler system like you have it will cost you more money to heat your house that way than if you leave it like it is. With a boiler system it takes a lot longer to heat an area than with a furnace. The best thing you can do is find a happy medium and leave it there at all times. If you read the paper work on your new thermostats they have a set procedure which tells the thermostat if you have forced air or boiler system. Do you have baseboard or in-floor heat how many zones do you have.
It is not your thermostat, it is an airbound zone. The gurgly noise you heard was that water and air flowing through the radiator. The zone needs to be purged either at the boiler, or through vents on the radiator. Hope this helps