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Should I get a f valve or e valve for a v8043e1012 v8043f1012

We have a three zone heat system. Last year one of the zones got stuck open, now one got stuck open.

I read elsewhere in fixya that I can use either the e or f but that it migh tbe easier iwth the f.

I watched the plumber replace theh valve last year, - used an ''E'',but i saw he had to think about the connections soI am thinking the F might be better for me.

Nevertheless, I would like the opinion of a knowledgeable person .

I have mtaken photos of what the current valve looks like



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  • teeee Feb 06, 2010

    here are my pics

  • teeee Feb 07, 2010

    fbwetzel,

    Thank for your comment. I probably was not clear enough in my question. My system has three of these valves. One was replaced last year with "e" This year another valve has failed.

    I am trying to decide is I should get another E- which what the plumber had in his truck, or if an F would be easier to install.

    Thnaks

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Usually the zone valve is considered normally open or
normally closed. If this is a dual valve of some sort than you would want to choose the normally closed
position. The valve would probably have a c-terminal,
nc-terminal and a no-terminal. You would want to choose C and normally closed.

Posted on Feb 06, 2010

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Honeywell v8043e1012 Zone Valve


The V8043E1012 Honeywell zone valve is one of the most common zone valves installed on many hydronic hot water heating systems. This zone valve has been a rock solid staple in the heating industry for many years.

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It is a simple two way on-off low voltage valve that consists of two parts. There is an actuator that has a motor and an end switch, and then there is the valve assembly that controls the flow of the water.

The actuator contains a small 24v synchronous motor to open the valve and hold it open as long as power is supplied to the motor. When power is turned off the spring loaded return pulls the valve back shut. The power to the motor can be control through any low voltage thermostat. Power consumption is only 7.7va so up to 6 valves can be controlled from one 40va transformer. The actuator also has a manual open feature that allows you to manually open the valve in the event of a power failure. The valve will then return to normal operation when the power is restored.

In the event of an actuator failure the motor or the whole actuator can be replaced without removing the valve or draining the system. The replacement process is very easy and can be performed in a matter of minutes. The process only requires the loosening of two screws and the change over of the wiring.

The valve assembly is normally a straight through design that is built in such a way so that the valve can be installed without disassembly. The simple ball design is such that the ball is suspended inside the valve without touch any metal in the fully open position. This allows the valve to be soldered in the piping fully assembled. Each time the valve is opened and closed the ball is turned slightly which keeps dirt from building up at one spot and creating a leak. This also allows for even wear on all surfaces and therefore this valve virtually does not ever wear out from use.

There are some failures in these valves after years of use. The most common things that go wrong are the failure of the motor and the wearing out of the gears inside to the point where they skip and do not open the valve. The end switch will give problems on rare occasions.

Overall after installing hundreds of these valves I rate them as one of the best zone valves on the market. They are easy to install and service. Considering the wear and tear that a zone valve receives the total number of failures seen with these valves is very minimal.

http://www.fixya.com/support/r3901905-honeywell_v8043e_v8043f_zone_valve

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How do I connect a 24v damper motor with 6 colored wires red white yellow green blue black to NO COM NC terminals.


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To help understand the operation of a zone system, say you have 2 zone system and zone 1 thermostat initiates a heat or cool demand. Zone 2 valves energizes and shuts and zone 1 stays open and allow air to heat/ cool zone 1. If zone 2 thermostat simultaniously initiates the same heat/cool demand, the zone 2 valve opens and both zone heat/cool. When either thermostat is satisfied the opposite zone valve closes and when both thermostat are satisfied both zone valves open.
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