Another New Install Mess

Ironman

@MichelleLe1,
The pressuretrol is set way too high. This will also cause numerous problems.

Turn the adjustment on top until the right side bar aligns with 2 psi.



Do the side marked "main", not the "differential" side.

Ironman

MichelleLe1 said:

Here you go Bob.

I believe I have a total of 210.5 sq ft of radiation.

That translates to 50,520 btus X 1.33 pickup factor = 67,192 btus. The boilers net rating is 89,000 btus which would mean it's a little over-sized, but that might be the smallest steam boiler that Crown offers (not sure). The burner MAY be able to be down fired some (not sure of that either).

How many sq. ft. is your house?

MichelleLe1

Thanks to Mr Holohan's book I already have the psi at 1.5 and the differential at 1 😁
My house is about 1,530 sq ft.

KC_Jones

@Ironman they actually have 2 sizes smaller in that series, but it looks like it’s done in the burner as they are all 3 section boilers. Give that it should be able to be downfired to a closer rating to her system.

They make factory piping kits for those boilers, I wonder if the factory would be willing to help out in our possible endeavor?

Ironman

I think the boiler can be down fired since it's the same 3 section block as the two smaller sizes in that line. You'll lose a little domestic hot water production, but not much.

Ironman

KC_Jones said:

@Ironman they actually have 2 sizes smaller in that series, but it looks like it’s done in the burner as they are all 3 section boilers. Give that it should be able to be downfired to a closer rating to her system.



They make factory piping kits for those boilers, I wonder if the factory would be willing to help out in our possible endeavor?

@KC_Jones,
I guess we were thinking the same thing at the same time.

Getting the piping kit would be very helpful.

JUGHNE

Would a double riser drop header act as a main for all the runouts to connect to.
And is it feasible to drip each counterflow runout, or maybe just the longest ones.

The only venting would be at each radiator, does adding an air vent to the valve end of the rads vent the runout riser?

I tried that on a long run connected somewhat like this and it only vented at the end of the cycle. FWIW

And do you have an extra zero in you house size?

Sailah

I found this for the boiler piping kit:

Seems everything needed is listed right there

http://www.velocityboilerworks.com/documents/Kingston-Near-Boiler-Piping-Kit.pdf

MichelleLe1

Oops! Yes. 1,530 sq ft 😲

Ironman

MichelleLe1 said:

Oops! Yes. 1,530 sq ft 😲

Well, that's a little over 33 btus per sq. ft. Sounds about right for an old house with steam. You probably have a lower heat loss per sq. ft. now if the envelope has been tightened up.

lchmb

anyone mentioned turning the pressure down?

Ironman

lchmb said:

anyone mentioned turning the pressure down?

Look at the posts above.