| Application: | Single Boiler |
|---|---|
| Stages: | 1 Boiler |
| Width (Inches): | 7-9/16" |
| Height: | 6-5/8" |
| User Interface: | LCD Push Button |
| Voltage: | 240v |
| Depth (Inches): | 2-13/16" |
| Ambient Conditions: | Indoor Only: 32°-113°F < 90% RH non-condensing |
| Power Supply: | 120V (ac) |
| Relays: | 240 V (ac) 10 A-1/3 hp- pilot duty 240 VA |
| Temperature Range (F): | -67°F - 266°F |
| Max Temp (F): | 266°F |
| Min Temp (F): | -67°F |
| Control: | Microprocessor PID control |
| Weight (lbs): | 3 lbs |
| Demands: | 20 to 260 V (ac) 2 VA |
| Sensors: | NTC Thermistor, 10 k ohm @ 77°F |
4 fin tube convection is the correct one Sent from my Verizon Wireless 4G LTE smartphone
It actually doesn't matter too much. All it does is set the reference temps for the water through the pipes. Fin tube has boiler max @ 200, Baseboard has boil max @ 170.
A non-condensing boiler generally should not be operated below 140 degrees F. When configuring the Tekmar 260, the type of terminal unit will influence the recommended design supply temperature (BOIL DSGN), and minimum supply temperature (BOIL MIN) for greatest efficiency. For your non-condensing boiler, do not specify a temperature less than 140 degrees for BOIL DSGN or BOIL MIN. Take a look at Terminal Units on page 6, and section B3 on page 7 of the Tekmar 260 Data Brochure for more detailed explanation. http://s3.pexsupply.com/manuals/***.****03/53188_PROD_FILE.pdf
I believe it is. I have a Weil MClain. I live in New York,. The lowest temp my boiler ran at was 135 degrees. I didn't notice any condensation issues. Over the past 2 years. I have hot water baseboard, I only noticed a problem with a room over the garage. Since water running through baseboard was not 190 degrees that room had trouble maintaining temp on cold days. I added about 3 feet of baseboard and had no more issues. It has been difficult estimating savings, because the winters have been very different since I put it in. Unfortunately my electric utility was working on the lines and caused a power surge that wiped out the tekmar. I'm waiting to see if they are going to pay to replace it. I hope this was helpful Bob
The 260 should will work fine for you if you set the lowest set point to 140. This will virtually eliminate the risk of condensation as the return temperature should be greater than 120 deg.
The boiler temperature is a settable item in the controller. My memory is that the Tekmar 260 has a minimum low setpoint of 140 degrees. It will not allow you to program a boiler setpoint below that temp. Nor does the outdoor reset schedule allow for a lower temperature than that. That setpoint is the temperature of the fluid in the boiler, not your stack temperature. Low stack temps mean shorter run times to achieve the setpoint, not lower combustion temps in the burner chamber. If you are worried about condensation due to short run times, then pick a higher value for your minimum boiler temp.
Sounds like a good match. I have the same basic boiler. I've used this controller for two seasons and haven't seen any condensation. This unit has delayed firing to prevent short burns and you can set the low(and high) temp limit by preset or change it manually to your own needs.
The 260 has a lower temp limit setting to try to limit condensation problems, but I've never used it, so I can't verify how well it works. Without adjusting this setting, I suspect you'd for sure run into condensation problems with the outdoor reset feature & sensor enabled. John
yes it is and as far as the condensation is concerned during the setup the 260 will need input on the unit its being hooked up to and one of the settings is for you to check the manufactures suggested lowest allowable temp to prevent condensation so what ever temp you input the 260 will never fall below that temp it also will need the highest allowable temp as well and it will never let the boiler get any higher than that number . The 260 is a perfect fit for your application just remember you need to install a sensor well in the boiler so it can read the water temp .This is not included in the kit
We believe you may be referring to the 033 timer, which is available at the link below. http://www.pexsupply.com/Tekmar-033-tekmarNet4-Timer-7891000-p
The Tekmar 260 control is a boiler control, not a tankless water heater control. It will not work with a tankless water heater.
The 260 should work well in this application.
Yes, this unit will work for you.
No, the replacement for the Tekmar 353 would be the Tekmar 356.
The 260 replaces the 251.
Please refer to page 11 of the following Installation Guide: http://s3.pexsupply.com/manuals/1302535675203/53188_PROD_FILE.pdf
The temperature sensor can not be adjusted, as it simply reads the outside temperature. If the readings are not accurate, it could be that the sensor is defective, the wiring of the unit is incorrect, or the sensor is not placed in the right location. It should be situated on the north side of the house without exposure to direct sunlight, otherwise the readings could be incorrect.