EPH 2 Port Valve

[Johntheo5]

Do the above behave like my Honeywell ones in that when opened manually they do not close the microswitch to start the boiler?. This facility is normally used when filling the system.

 

[polesapart]

AFAIK all makes same on this.

 

[Exedon]

Eph zone valves do make on micro switch when in manual position.
Power it up and it it will unlatch .
Danfoss valves also make on manual but they stay in manual position when powered up. Absolute pain if you forget to unlatch them.

 

[Johntheo5]

Do you mean the boiler will fire up when the (EPH) valve is manually opened?, the Honeywell does not fire the boiler but when the valve is powered open then when the valve has passed the manually open position, the lever just falls (down) out of the latch so when the vale is de energised then it will fully close.
I'm a little surprised that any of these (if) fire the boiler when manually open although some may find this handy for proving that the boiler is OK.

 

[CountryFan]

Upon reading the instructions it states it can be put into manual position for filling, like most 2 port valves.

 

[Johntheo5]

Yes, but it seems that some will also start the boiler and others will not, like the (my) Honeywell, and while most wouldn't dream of draining or refilling a system without the power isolated, it can happen, but the valve MIs don't mention if the microswitch is made or not if the valve is opened manually.

 

[Exedon]

Do you mean the boiler will fire up when the (EPH) valve is manually opened?, the Honeywell does not fire the boiler but when the valve is powered open then when the valve has passed the manually open position, the lever just falls (down) out of the latch so when the vale is de energised then it will fully close.
I'm a little surprised that any of these (if) fire the boiler when manually open although some may find this handy for proving that the boiler is OK.

Absolutely both eph and Danfoss zone valves have micro switch activated when in manual position.
As long as your aware its not a problem.
We have used a lot of eph stuff for a number of years.
Zone valves are cheaper than honeywell,
5 year as against 12 month warranty Heads just click on power leads plug into valve head.
Yet to have one fail.