Is Controller Adjustable?

DIY Homeowner

My new boiler (Utica USC-4, 87K BTU output) has a Honeywell L4080B high-limit control. The boiler as installed is oversized for the existing house, but an addition is planned sometime in the next 5 years. It is set up with two zones, cast iron baseboard radiators, 60 feet set up in a monoflow zone upstairs, and 14 feet set up in a loop for the basement family room.

I use a 3 degree set-back at night upstairs zone, no set-back downstairs. The burner on the boiler sometimes short cycles, especially when the downstairs zone is calling for heat. The temperature gage on the boiler indicates that the temperature of the boiler only drops about 5 degrees between off and on cycles while the circulators run. The high limit is set at 180 degrees.

Is there any way to lengthen this cycle by say adjusting the controller to let the boiler temp drop 15 or 20 degrees, before firing the burners back up? I've searched the Honeywell website but there is no info available posted for this line of controllers. Thankx!!

Geno_15

limit

Call your contractor and have them asess your needs/situation. Who put the system in? You want me to give you 27 years of exp. not to mention all the money I've spent in education for free?? No offense but I feel that there's a time for advice and a time to pay someone who knows what they're doing. Will you do for me,{what ever it is you do for a living}, for free??

BillW@honeywell

Can you check the part number again?

I don't see any new or old control with that part number. Also, if you have a Honeywell electronic thermostat, check to see if it is set to 3 cycles per hour. The new ones all come factory preset to 6 cph for forced air. Just follow the "Installer Set-up" directions on the instruction sheet. If you have an old mechanical stat, check the heat anticipator setting. I you go to WM's website they also may be able to help.

DIY Homeowner

Bill, the Honeywell webpage for this unit is this:

http://content.honeywell.com/bbc/pub/tech/prodModel.asp?pM=362&pF=69&pl=15&mkt=1

The thermostat upstairs is a programable digital and is a couple of years old. It came from the local gas company during an energy audit. The thermostat for the downstairs zone is a regular old round honeywell thermostate, prolly 6 or 7 years old.

Geno, I understand these forums to be places where communities of people in far-flung location go to exchange information and to help resolve each others problems. In the spirit of that community, I am more than happy to offer you advice in my speciality. If you have questions about cleaning up spilled oil and negotiating the regulatory maze associated with such activities, post them, and I will gladly respond.

R Troughton

Ed,

nice reply to Geno's post.

I am also more than willing to share 25 yrs + of general construction knowledge, including everything from house designing to finish trim work. This includes ALL aspects of residential house building and most in the commercial arena.

My specialities were steel stud construction, drywall (Hanging and finishing) and acoustical ceiling installation.

Rob

Unknown

Touche'

That's what this place is all about.

Sharing ideas.

I bet more work comes our way than there is work driven off by the exchanges made here. I've gained more than I've given, to date. I'll keep trying.

Noel