Questions tagged [zoned-heating]
The zoned-heating tag has no usage guidance.
27
questions
1
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2answers
26 views
How to properly pipe a hydronic heating system
Background:
I am installing a hydronic radiant floor heating system myself and getting all the information required is a combination of many different websites. It doesn't seem like there is an all-in-...
0
votes
1answer
22 views
What are the steps to drain and refill zone for zone valve replacement?
I have a hot water baseboard (hydronic) heating system, gas boiler. Please refer to diagram of my system below. Ball valves 1 & 2 are supply. Ball valve 3 is return. Zone valves are on supply, ...
0
votes
1answer
20 views
Different wirings on 2 thermostats controlled by a 2 minizone system
I was replacing my 2 thermostats controlled by a 2 mini zone system (Trol-A-Temp). One of the thermostat has 6 wires/terminals (Y,W,R,G,O,B). The other one has 3 wires/terminals (Y,W,R). I was ...
0
votes
0answers
33 views
how to drain a specific heating zone?
I have hot water baseboard heating, with three zones. I would like to drain one of them in order to complete some renovations which requires moving some baseboard out of the way.
I'm not sure what the ...
0
votes
0answers
19 views
How to wire in gas boiler zone valves with out a zvc
Does anyone have a basic wiring schematic for wiring up 3 zone valves without a zone valve controller? They are honeywell zone valves. The boiler is brand new and everything is prewired. It just ...
1
vote
0answers
33 views
Are 8-Zone Wiring Centers Compatible With Smart Thermostats?
I'm looking at various wiring centers for gas boiler heating and I'm wondering if they're compatible with the major smart thermostats, such as Nest, Hive, and Honeywell.
Wiring Centers:
Reliance:...
0
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0answers
6 views
Honeywell Truzone Panel Power Issue
I redid pieces of my zoning system a few months ago but we had such a mild winter the furnace barely went on. Now that we're getting towards summer the old problems that I had are reappearing. I was ...
0
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0answers
48 views
Why is one of my four baseboard heat zones not working?
No heat in baseboard. How to bleed just one zone. Thanks! Please see picture. ?
I have a 4 zone valves.
1) water heater (works)
2) 1st floor air handler (works)
3) 2nd floor air handler (works)
...
2
votes
1answer
43 views
HVAC Heat only comes on when Fan is set to “ON” (not Auto)
have a weird problem that JUST started happening. When I turn the thermostat up with the fan set to "AUTO", nothing happens. The furnace does not light and the fan does not come on. This worked fine ...
0
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0answers
36 views
Boiler Zone issue after thermostat install
I just bought a new to me house, built in 1970. I replaced the old mercury thermostats with new programable digital ones. They worked great for the first 12 hours. Kept and read temps like it was set. ...
1
vote
1answer
19 views
Does manual operation of a Taco 570 series zone valve operate the boiler?
I have a home with multiple zones with the valves mentioned in the question. The documentation (http://www.taco-hvac.com/uploads/FileLibrary/100-3.pdf) isn't clear about whether contact 3 is ...
0
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0answers
40 views
Nest Thermostats: Balancing temperatures between zones
So, I'm wondering if there's a way that I can program my Nest thermostats to help moderate temperature disparities between my first and second floors. Here's the situation:
I have forced air from a ...
0
votes
0answers
72 views
Zoned 2 stage heat pump system, aux heat not engaging
Homeowner here...I have a 2 stage heat pump split system with the ducting zoned for 2 zones. The units are as follows:
Compressor: Goodman GSZC16 heat pump
Zone control board: Honeywell HZ322
...
1
vote
0answers
26 views
Strange behaviour with 4 zone central heating timer (John Guest TM4 / Heatmiser TM4)
I have a 4 zone heating timer (HW, Underfloor Heating, Towel Rail and the 4th zone is unused).
I moved into a new build a few years ago. After 3 years my heating timer unit (John Guest TM4) started ...
0
votes
2answers
85 views
Why does a system boiler with hot water cylinder not use a diverter valve?
I understand that it doesn't need a diverter valve... But I was thinking, couldn't the system be more efficient with one?
For example, the central heating could run at a low temperature (35°-40°) and ...
11
votes
5answers
2k views
Most cost effective thermostat setting: consistent temperature vs. lowest temperature possible
The problem: Our heating bills are about 25% higher than our average neighbors according to our bill, yet our temperature is always as low as we can stand it (mid 50's), we have excellent insulation ...
1
vote
2answers
782 views
HZ432 and no heat in one zone
I have 4 zones... The following lights are on the HZ432:
Heat 1 - red
Heat 2 - red
Heat 3 - no light
Zone 1 - yellow
Zone 2 - red
Zone 3 - red
Zone 4 - red
I have heat in 3 zones, but not in one of ...
1
vote
1answer
10k views
Are these red lights on my Honeywell HZ432 why my bedroom isn't blowing in heat?
I just moved into a new multi-family house with central heat/AC and the 3rd floor bedroom doesn't seem to warm up very well. When the thermostat is on, I don't feel hot air blowing in from the vents ...
2
votes
1answer
343 views
Zone Controller T-Stat Wiring w/ 24V transformer, isolation relays for 2 zones
I have a new Navien SmartZone+ 6-Zone Control for my boiler-based heating system. It is great, except it provides no power on C.
I realize the internet has researched the heck out of adding a C ...
0
votes
0answers
37 views
Heat pump can't get a zone to 72° F
I have a heating system with both a heat pump and a boiler. The rule for the system is that if the temperature in a zone is 5° F less than called for, then the boiler will come on, but otherwise the ...
0
votes
1answer
214 views
Whole house humidifier when furnace is in unconditioned space
I have 2 furnaces, one in the garage and one in the attic. These are both spaces with unconditioned air, so they get very cold in the winter. The contractor who helped me configure my garage furnace ...
1
vote
0answers
797 views
How to wire a Taco zone valve controller with ecobee
I'm having an issue with wiring my Weil McLain gas boiler. It was wired up fine and working for a single zone. I added (2) 4 wire zone valves in. So I now have 2 zones, a Taco zone valve controller(...
2
votes
1answer
2k views
Can you use 1 ecobee thermostat to control 2 zone valves for heating?
I previously had a single zone set up with 1 circulator. So i added an extra zone. Still have 1 circulator pump and I also picked up a tacozvc 403-4 box to set it up. My question is how can i ...
0
votes
3answers
2k views
What are normally-open hydronic zone valves used for?
In a hydronic (hot water) heating system electronically operated valves control whether hot water runs through a particular zone of the building, or not.
It seems to be a common setup for the valve ...
0
votes
2answers
258 views
Difference between geothermal and regular hydronic zone valves
Taco makes two variants of zone valves - one type for general hydronic use, and another type marketed especially for geothermal use.
What is the difference in valves that particularly suits them for ...
1
vote
0answers
45 views
Some baseboard in one zone are getting hot and some are not
So I have one zone with two split loops. One loop is getting hot, the other is not. In the boiler room where the zone splits into two loops i can already feel that one is hot and one is barely warm.
...
1
vote
0answers
268 views
Nest + opentherm + zone valve
I have a Nest 3G, I'm now considering to change my boiler due to age-related issues. Can someone tell me if I can connect the Heat-Link to both zone-valve (on/off contacts) and boiler (OpenTherm).
I ...
