Best Of
Re: Expansion tank question
Assuming you have a Taco ZVC controller with 4 terminals per zone valve, I believe you can run a jumper between 3 & 4 (as a 2 wire valve) which would turn the circ on when the thermostat calls. Or swap it out for a switching relay such as an SR501.
GroundUp
Re: Expansion tank question
agree with @EBEBRATT-Ed and @GroundUp - no need to reconfigure since you already have pump configured for pumping away from the expansion tanks. Air removal would perform better at highest / hottest point in system but not worth the bother; just lock the valve open.
PC7060
Re: EK System 2000 hot water tank
Thank you for your reply, @SuperTech - we were responding at the same time, and I have to say yours was much more concise!
Best,
Roger
Roger
Re: "Relatives"???
Hi @EBEBRATT-Ed , You're clearly a producer. Over sixteen thousand posts here, helping people out of trouble. Anything we all can do for you? … I'm serious. This is your community. 😇
Yours, Larry
Re: Where and How to Tie in Time Delay Relay
Where is the Dwyer Photohelic (primary pressure control) on the boiler wiring diagram? Is this a simple open/close set of contacts that turn the burner on and off based on steam pressure?
Your boiler's original LWCO appears to be of the probe type. The mechanical one was added after the fact, maybe to comply with a local code.
The ICM 203 should work just fine if connected this way.
In this configuration, the gas valve will operate as soon as there is 24VAC applied to the valve. When power to the valve is terminated, there will be a delay in the restarting of the gas valve according the the selected time on the dial. for example if you select 10 minutes, then the delay after the power is terminates will start and if you power the gas valve within the 10 minute delay, the gas valve will not open until the internal clock of the ICM 205 reaches 10 minutes.
Example 1: Call for heat (24 V. power) to the gas valve terminates at 12:00. The call for heat is reestablished at 12:03. The gas valve will not power up until 12:10. this is because the internal timer has not yet expired.
Example 2: Call for heat (24 V. power) to the gas valve terminates at 12:00. The call for heat is reestablished at 12:13. The gas valve will power up until 12:13. This is because the internal clock has expires at 12:10 and the power to the gas valve will open the valve at the time power is reestablished.
Is this the delay you are looking for?
Re: Short cycling boiler. I'm stumped.
You can purchase just the leaking probe, as long as the control still works.
https://www.supplyhouse.com/Hydrolevel-45-214-EL1214-3-4-NPT-Standard-Ceramic-Probe-2-7-8-ID
As long as you are taking the plumbing apart to replace the Watts 1156F look at the intake of the Watts 9-D backflow preventer. There is a screen on the intake side union.
Re: Short cycling boiler. I'm stumped.
I still think that your short cycling is the SideShot. To prove this you can do a simple test. Take a TEMPORARY jumper wire and connect the O on the SideShot control to the Y on the SideShot control. This will stop the short cycling. of the burner.
This temporary jumper is not to stay on the control. It is for testing purposes only. Once you have determined that the proving switch is causing the short cycling, You must remove the jumper and determine why the proving switch is opening whenever the burner runs.
There are also other repairs that are required. Getting the short cycling resolved, does not eliminate the dangers that the other problems represent.
You probably want to get the new water feed valve and the new LWCO probe taken care of as soon as possible.
Re: LG Heat Pump frustration
@LRCCBJ unfortunately, it appears he had it installed 4 years ago so that argument isn't so simple…
KarlW
Re: new crown gas fired steam boilers - water needed every week
@redheadgenes wash any new sections of pipe you add with dish soap and rinse well prior to installation to remove any residual manufacturing oil. This will prevent issues with oil getting into your boiler water.
Waher