DS boiler 3200

Jlinde37 · Post by **Jlinde37** » Wed. Feb. 26, 2020 3:28 pm

Leeboy67 wrote: ↑
Thu. Feb. 20, 2020 6:55 pm
Josh the pump by the expansion tank is running continuous it's feeding the heat exchanger inside the house.. the other pump kicks on whenever the aquastat hits about 175 that one's for the dump Zone

Set dump aquastat around 195 to 200. Your furnace coil will like 180° I often run my boiler around 190 when it's really cold

lsayre · Post by **lsayre** » Wed. Feb. 26, 2020 3:38 pm

Jlinde37 wrote: ↑
Wed. Feb. 26, 2020 3:28 pm
Set dump aquastat around 195 to 200. Your furnace coil will like 180° I often run my boiler around 190 when it's really cold

If it wasn't for the PEX I would say to set the dump at 215 degrees. For the PEX it needs to be at 195 degrees (200 max).

Post by **jremington** » Wed. Feb. 26, 2020 3:42 pm

If he’s running his pump 24/7 he shouldn’t hit those temperatures.

coalder · Post by **coalder** » Wed. Feb. 26, 2020 5:42 pm

jremington wrote: ↑
Wed. Feb. 26, 2020 3:42 pm
If he’s running his pump 24/7 he shouldn’t hit those temperatures.

I have to disagree. I have a similar setup, only with a Harman boiler. And also circulate between the Harman & the oil boiler 24/7. when the house thermostat calls for heat the primary air opens on the Harman & it revs up.When the house is satisfied, the primary on the Harman may still be open with it going like the hammers of hell!! At 170* the primary on the Harman closes & the temps sometimes still climb to 200*. At
this point the dump zone takes over till temps drop. So IMO those numbers seem quite appropriate to me.
Jim

Leeboy67 · Post by **Leeboy67** » Wed. Feb. 26, 2020 6:59 pm

Jlinde37 wrote: ↑
Wed. Feb. 26, 2020 3:28 pm
Set dump aquastat around 195 to 200. Your furnace coil will like 180° I often run my boiler around 190 when it's really cold

Leeboy67 · Post by **Leeboy67** » Wed. Feb. 26, 2020 7:04 pm

I was told to keep it at 175 but I've been sneaking it up. I'm at 185 now ,at first I did have a little bit of dripping out of the relief valve but it's dry now. what are the relief valves typically set at?

Leeboy67 · Post by **Leeboy67** » Wed. Feb. 26, 2020 7:44 pm

Okay pressure relief valve is not temperature it is pressure there for 30 PSI duh.

Post by **jremington** » Wed. Feb. 26, 2020 8:16 pm

coalder wrote: ↑
Wed. Feb. 26, 2020 5:42 pm
I have to disagree. I have a similar setup, only with a Harman boiler. And also circulate between the Harman & the oil boiler 24/7. when the house thermostat calls for heat the primary air opens on the Harman & it revs up.When the house is satisfied, the primary on the Harman may still be open with it going like the hammers of hell!! At 170* the primary on the Harman closes & the temps sometimes still climb to 200*. At
this point the dump zone takes over till temps drop. So IMO those numbers seem quite appropriate to me.
Jim

I forgot he was using the combustion fan. It wouldn’t be an issue with the Sampson regulator. I would also have run a bypass around the circulator pump feeding the dump zone in case the power went out.

Jlinde37 · Post by **Jlinde37** » Fri. Feb. 28, 2020 5:33 pm

coalder wrote: ↑
Wed. Feb. 26, 2020 5:42 pm
I have to disagree. I have a similar setup, only with a Harman boiler. And also circulate between the Harman & the oil boiler 24/7. when the house thermostat calls for heat the primary air opens on the Harman & it revs up.When the house is satisfied, the primary on the Harman may still be open with it going like the hammers of hell!! At 170* the primary on the Harman closes & the temps sometimes still climb to 200*. At
this point the dump zone takes over till temps drop. So IMO those numbers seem quite appropriate to me.
Jim

Mine runs similar too. After a good demand and coal bed output ramps up and Sampson shuts the air off. It will sometimes creep to 200 and the high limit will kick on for a few mins to bring it back down to 185 and then it will settle back down.

Didnt think about the pex and the 175. However I run 180 ish to my hwbb upstairs for about 3 years.. It works, but not saying it's right, or how long it will last.

Jlinde37 · Post by **Jlinde37** » Fri. Feb. 28, 2020 5:38 pm

Just curious why you need the plate exchanger? Cant you just pipe boiler directly to the furnace coil?

Leeboy67 · Post by **Leeboy67** » Fri. Feb. 28, 2020 8:26 pm

Jlinde37 wrote: ↑
Fri. Feb. 28, 2020 5:38 pm
Just curious why you need the plate exchanger? Cant you just pipe boiler directly to the furnace coil?

Because of the possibility of freezing. Garage that's not insulated. I got antifreeze in the boiler from the garage to the house I didn't want to add antifreeze to the entire house.

Post by **jremington** » Fri. Feb. 28, 2020 8:57 pm

I see your not using the insulated jacket. That will help heat your garage and also keep your boiler temps down.

Leeboy67 · Post by **Leeboy67** » Tue. Mar. 03, 2020 9:12 pm

Actually I don't get a whole lot of heat from the boiler and it really don't over fire it so it don't go to the dump zone very often

Jlinde37 · Post by **Jlinde37** » Thu. Jan. 21, 2021 8:45 am

Did you ever get this setup working well?