Best Of
Re: Connection from Taco SR501 to RINNAI I-Series combi boiler
let’s see more of your piping, how you are using two sets of close tees.
There may need to be a boiler pump, loop pump, then zone pumps?
hot_rod
Re: Williamson Octopus Furnace still alive and well
Did anyone notice the screen door spring on the upper door?
Those were added whenever something like this was converted to gas.
That was the pressure relief point in case of a delayed ignition. The latch catch was ground off so the door could not be held shut.
JUGHNE
Re: Want a Wall Mounted Ductless Heat Pump
@kadini If you ware Ok with a window shaker, a mini split will be WAY quieter. The difference between one mounted on stud walls and one mounted on foundation/ground is the first one you hear, the other one is silent.
The issue is depending on where on the walls the unit is mounted, it could resonate at certain compressor speeds (these are variable speed units, compressor speed changes with load). What usually happens is the unit is mostly Ok, but sometimes you hit a resonance where the house sings. If you are luckly, it will be quiet, if not, it will be annoying.
@EdTheHeaterMan I tried every kind of isolator to fix a stud mounted unit. They definitely helped but there is no comparison with ground mounting.
The challenge is most isolators don't have enough deflection and you need add a lot of weight (ie concrete pavers) to the wall mount brackets.
To work at the typical compressor speeds you need about 3/16" static deflection and about 150lb of weight. Most isolators are not soft enough for that and the ones that are won't hold any shear load. Most wall mount brackets won't hold all that extra weight either.
@pecmsg I have to maintain about a dozen minisplits from various manufacturers. Out of all of those over a decade I've had one control board failure on a place with noisy power. Rest of the issues were clogged drain lines. Over the same time, I've changed a lot of thermopiles, flame sensors and draft inducers on fuel burners. The usual issue I have seen is refrigerant leaks which are due to sloppy install.
Kaos
Re: Boiler replacement.
There shouldn't be any issues wiring Nest to our ZVC controls. If you do need a resistor, our 1,000ohm 1/2watt won't work with Nest. They ( Nest ) suggest using a 220ohm and up to 5 watt. Our resistors should work with any other t-stat.
SteveSan
Re: Height difference between primary and emergency low water cutouts
We use a teriiary method. On steam boilers we efeel the danger can be recognized by a high temperature in the lower half of the Hartford loop piping back to the boiler. If the low water fails, the water level will go low, the return water will stop comming throuh the hartford loop, and the drip line will increase the water temperature in the hartford loop (boiler side). If this temperature goes above 180 degrees, the control cut out yeh boiler. This boiler cannot be refired with out a control reset. That is known to the installer.
exqheat
Re: Age of American Standard boiler G404 Series 4BJ3
The manufacturer's address on the nameplate includes a ZIP code. They were introduced in 1963, so the boiler was made sometime afterwards.
bburd
Re: Question about Erie zone valve
If it us on a 3/4”copper tube loop you are probably moving 2 no more than 4 gpm. Most typical on the shelf 3/4” ZVs are 7-8 Cv
But a 5 even a 3 Cv would work fine.
Those smaller Cv valves usually sell to OEM equipment manufacturers. They are for application with high head circulators requiring a ZV with a high shutoff pressure.
hot_rod
Re: Exterior insulation on foundation wall
It’s a nice product. I’ve used Densglass to build up architectural details. It’s often used under the stucco / foam layer for commercial builds.
PC7060
