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Re: Toro Home Sprinkler/Irrigation System
Posted: Thu Jun 02, 2011 3:54 am
by OldCurlyWolf
Excaliber wrote:OldCurlyWolf wrote:Charles L. Cotton wrote:We have a 19 year old sprinkler system and the Toro Vision I timer needs to be replaced. I'm going to change it but I have no idea if there are different configurations of timers.
The wiring on the timer consists of 6 single red wires (1 for each zone valve); two white ground wires; 3 gray wires with different colored striping on each going to a buss bar marked 15V -- 0V (yes, zero) -- 24V. The red and white wires are what I would expect and the three gray wires obviously are the DC B+ that must feed the red wires to the valves.
I'm stumped by the 3 different gray DC wires. Why different voltages?
Does anyone know about sprinkler timers and possible variations and what I should buy?
Thanks,
Chas.
My advise is to disconnect, dismount it and take it to a place that specializes in irrigation systems. They can tell you which of the current timers is best suited as a replacement.
Just bringing in the make and model number should give any professional all the info he needs to make a recommendation. He can look up the specs easily enough. Disconnecting the wiring without a solid plan on how it'll be arranged on a new unit is not something I'd suggest doing.
Of course you have to record which wire goes where and what that where does. Charles is definitely intelligent enough to do that.
Re: Toro Home Sprinkler/Irrigation System
Posted: Thu Jun 02, 2011 10:35 am
by Excaliber
OldCurlyWolf wrote:Excaliber wrote:OldCurlyWolf wrote:Charles L. Cotton wrote:We have a 19 year old sprinkler system and the Toro Vision I timer needs to be replaced. I'm going to change it but I have no idea if there are different configurations of timers.
The wiring on the timer consists of 6 single red wires (1 for each zone valve); two white ground wires; 3 gray wires with different colored striping on each going to a buss bar marked 15V -- 0V (yes, zero) -- 24V. The red and white wires are what I would expect and the three gray wires obviously are the DC B+ that must feed the red wires to the valves.
I'm stumped by the 3 different gray DC wires. Why different voltages?
Does anyone know about sprinkler timers and possible variations and what I should buy?
Thanks,
Chas.
My advise is to disconnect, dismount it and take it to a place that specializes in irrigation systems. They can tell you which of the current timers is best suited as a replacement.
Just bringing in the make and model number should give any professional all the info he needs to make a recommendation. He can look up the specs easily enough. Disconnecting the wiring without a solid plan on how it'll be arranged on a new unit is not something I'd suggest doing.
Of course you have to record which wire goes where and what that where does. Charles is definitely intelligent enough to do that.
It's not a matter of intelligence.
Different models often label their terminals differently and it takes some figuring to make a proper translation. That's a lot easier to do when you're looking at the two units side by side with the wires still in their original positions, especially for someone who doesn't do this all the time.
It's just a suggestion. Charles will make his own determination. I recommend the safest and surest path for those exploring new territory since getting lost in what wire does what between the two units is pretty frustrating, and especially easy to do when the units were manufactured 19 years apart.