motorised valves help

[wat5190]

Once a motorised valve has powered up and moved the valve from hot water to central heating should the motor stop running and lock in position bare in mind the spring tension against it, or should it carry on running to keep the spring tension valve in the correct postition.

Any help would be appreciated Rob Watson

 

[REDSAW]

your quite right, it should power forward, back of slightly then lock into position, then power of.
if you know how to use a multimeter you can test the opperation is correct.
sounds like yours is not tripping of correctly.

 

[wat5190]

My old one was the same so 2night i have completley changed the 3 way valve. after fitting the new one i turned the central heating on, the motorised valve powered up and moved the valve from hot water to central heating, the one i fitted has a detachable head and the motor is still running just like my old one was ahhhh

 

[REDSAW]

My old one was the same so 2night i have completley changed the 3 way valve. after fitting the new one i turned the central heating on, the motorised valve powered up and moved the valve from hot water to central heating, the one i fitted has a detachable head and the motor is still running just like my old one was ahhhh

sounds like its not fully engaging then due to scale or electrical faut?.

 

[Jimbob]

hmmm . But a diverter valve will be set to hot water, then when demand is met it will then pull open to heating. Then will hold there until hotwater is again called for, even if heating temperture has been met.

 

[REDSAW]

hmmm . But a diverter valve will be set to hot water, then when demand is met it will then pull open to heating. Then will hold there until hotwater is again called for, even if heating temperture has been met.

yes but they are stepper motors. they step to the next position and are not designed to be constantly running as the motor will burn out, surley?.
thats what the keyed locks are for on the casing. so they can hold position releiving the motor?/.

 

[Jimbob]

no that is just for manual use. Unless im wrong of course and the ones iv seen are faulty.

Praise the combi

 

[stevetheplumber]

yes but they are stepper motors. they step to the next position and are not designed to be constantly running as the motor will burn out, surley?.
thats what the keyed locks are for on the casing. so they can hold position releiving the motor?/.

they are not stepper motors there synchron some one here actually sent me a bit about them in a previous thread they actually stall in place against the spring force but stay in that position The electronic involved were well over my head ONCE THEY START TO MENTION SQUARE SINE WAVES I GLAZE OVER

 

[REDSAW]

they are not stepper motors there synchron some one here actually sent me a bit about them in a previous thread they actually stall in place against the spring force but stay in that position The electronic involved were well over my head ONCE THEY START TO MENTION SQUARE SINE WAVES I GLAZE OVER

thanks steve, for the pointer as i said if it works dont fix it

 

[Bernie2]

Yes sychron motors in three port valves stay powered up, when they move to certain positions.

They stall if a DC voltage is applied to the rotor as well as the stator.

Its a bit complicated to explain for a three port valve, I would Google it.