Hydrosinkmike....132 question....

Weezbo

it will drop the circ off line when on 1 it will however run on 111 this is intriguing to me so i went to take a look at it today. on 111 it runs however there is a ball valve acting as the balancing valve to throttle the flow ,it has a rib ct monitor on the control that was wired though a relay from the 132 ,that was done in defence of having the circ drop off line...it is a rib XGTA

.75->150 A range ,with over trip point and under trip point...
it shows 2.75 amp draw through a clamp on .... when tested the pump #1 will run or both will run however they are not sequencing the 1234 dip switches are on...of interest to me was a 261 along side of it, that, my thought would be ,was to control the lag lead boilers in a similar fashion...is that wrong thinking ? one pump has a spring check on the supply side of the pump the other on the discharge side ...i dont savey that at all, there are no ports to check across the circs ,so i cannot say what the specific head and flow requirements are by checking however,....the ball valves are, at a glance guestimate ,breaking 30 % of flow..the valves are about half closed on both ball valves... if the 50-160's are on 1 speed it might be reading too much head causing it to read like a thermal overload? i will go look on web site for I.O's see if i see anything that is obvious from this 20 min perusal of the ladder diagram of the electrical and the piping arrangement..

just checked tekmar site ...i did ask if the 262 was connected to the 132 and got No they are separate systems....

i also got the place is colder since adding the new controls...
the heating system is noisy and Banging since the new pumps....

the tech throttled the ball valves and the Banging stopped...

i looked at the 262 and the rotate dip switch was turned off... here is what i am now thinking..the 262 should be connected to the 132,the relay that is controlling the three phase circs needs to be dialed in for 4 amp draw,then need dip switch 1-2-3 on, the 262 then needs Rotate turned on ....yes?i didn't see a pressure differential switch..however there some PD switches that were abandoned... now i wonder if there are pieces to the previous piping control that have been removed....

as these are the only pumps and they are "designed" according to the building manager to do equal runtime rotation.... that was the reply to my question as to whether there was another large pump on the House side in the "field" that i wasn't seeing....i think this is a mono flow system with danfoss stat controls in the individual rooms ,offices and reception areas...., i need to check out what happened to the valves the dp switches controlled ...