Cyclegard question

Bio

My boiler runs at very low pressure, never shuts off by pressure (runs at 2oz) until thermostat is satisfied.But I would like it to run non-stop, but this is not possible because of the Cyclegard feature of shutting off every 10 minutes, manual shows this as an "Optional Activation", can the burner terminal wire be disconnected and wire-nut to achive a one non-stop cycle ?

TomM

yes

yes.

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those cycleguard water stabilization circuits are for punks with unstable water lines.  :-)



(EDIT:  i was wrong, see below)

Mark N

Burner Wire

If you disconnect the burner wire and bypass the lwco how is it going to shut off the boiler on low water? And also what does low pressure have to do with low water? Also reread the section on intermittent level test and smartcycle. The intermittent level test runs every 10 minutes whether the boiler is on or off. By using Smartcycle the 10 minutes starts when the boiler fires. The intermittent level test can turn the boiler off 1 minute after it has turned on if the timer had already run 9 minutes.

TomM

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i've never done it, but from the wiring diagram, P2 is the main limit control, and if the boiler is on low water, the cycleguard will not produce a voltage at p2, and the gas valve will not open.   It seems that the 'burner' terminal is 24V from the gas valve, which is probably to start the timer.



It looks like it receives 24V at 'burner' and puts out 24V at P2. 



Try it and let us know.

Bio

Optional

Perhaps what I'm trying to achieve is what is shown on the second page picture 3 as picture 4 shows the "optional activation"

Hap_Hazzard

Picture 3 shows the water feeder connections.

This optional because you don't need a water feeder, but if you have one and want to use it, that's how to wire it.

TomM

im wrong

ok im wrong.  When you disconnect the 'burner' terminal, the control does not know how long the burner is running, and still stops for a test at 10 min intervals, but the 10 min intervals are random, it doesn't 'see' the burner running.  For example, once cycle might test at 4 min, 14 min, 24 min, etc, and another cycle might test at 8 min, 18 min, 28 min, etc.  If the 'burner' terminal is connected, then it will always test at 10, 20, 30 min, etc. 

Hap says in another post that the intermittent test is not disableable, which is probably true, and would void the manufacturer warranty, which makes sense. 

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im sure there's a solid state timer on the board you could jump out, but then again the question of boiler warranties. 

Bio

Cycles

Tested for an hour last night and you are correct, thanks TomM

Boiler Talk

More efficiency

So I have a oil burner on my Peerless WBV03.  I guess that is normally a two wire setup.  I can't tell how many wires are in the armored cabling.  So using the Optional Setup the boiler will run for 10 minutes and then test.  So this setup is better than randomness?  I guess the boiler could run for 9.5 minutes and heat enough and shut off.