Tekmar 256 Outdoor Reset Boiler Control

Tekmar Save Money on Home Heating Bills

Energy Saving Features

Outdoor Reset:


As the disparity between indoor & outdoor temperature increases, so does the rate of heat transfer from hot areas to cold.

A building's heat loss or gain depends considerably on two things:

Outdoor air temperature (as temperature difference between the exterior and interior increases, so does the rate of heat transfer) The building envelope's resistance to heat transfer (a higher R value in building materials will impede the transfer of heat) While a control will not impact the R-Value of building materials, it can ensure that the system does not waste heat by exceeding current requirements. Providing only the required amount of heat reduces fuel consumption, creating less pollution while saving you money.

How an Average Heating System Works...

When the interior air temperature drops below the thermostat setting, a signal is sent to the boiler to turn on. Unfortunately, the thermostat only tells the boiler to turn on when the house is too cold or turn off when the house is too warm. There is no in-between.


How many miles per gallon would your car get if the only method of controlling your speed was to accelerate until you're going too fast, and then apply the brakes?
How Your Heating System Should Work...

You adjust your car's gas pedal to maintain a comfortable driving speed and good fuel economy. Why not the same with your heating system? By adding a tekmar Outdoor Reset Control, heating system water temperatures are adjusted to maintain comfort and improve system efficiency.



It's Not Your Heating System's Fault!


If a heating system does not know if it is a cool autumn night or the coldest winter day, it works as if it's always the coldest day of the year and heats the water to a maximum temperature. Having this hot water in the distribution piping when it's not needed results in stand-by heat loss. By adding a tekmar Outdoor Reset Control that works alongside of your boiler and thermostat, you may see energy savings of up to 30%.



For More Information on Outdoor Reset, Tekmar 256 Control click here.



Scheduling & Setback:

Many tekmar thermostats include easy to use scheduling features. Scheduling allows for a reduction in temperature (setback) for rooms that are not expected to be in use. More detailed information about scheduling and setback can be found here.



Purging

This feature allows for continued circulation of any heat left in the high temperature areas of the system. Residual heat is used by the living space instead of being lost to the mechanical room. Some controls will also supply heat using circulating water prior to operating the boiler if it appears that there is enough heat left in the system to satisfy current requirements. This means that the boiler is turning on and off less frequently, saving fuel.

Reznor Ultra High Efficiency Condensing Gas Fires Unit Heaters - 93%

Reznor® V3 Series Model UEAS gas-fired, high efficiency, separated combustion unit heaters are available in 4 sizes ranging from 131,000 to 305,000 BTUH gas input. Heaters are designed for up to 93% thermal efficiency and are approved for installation in the United States and Canada by ETL.

Reznor® V3 Series unit heaters have a refreshing appearance with a glossy white cabinet finish and less visible hardware. Each size cabinet is easily suspended from 4 suspension points. The low voltage terminal strip on the outside of the cabinet makes connecting control wiring easy with no panels to remove. The addition of a “G” terminal to the low voltage strip, along with the new design of the circuit board, allows for fan only operation (without adding relays). All units have a factory installed gas line nipple to the exterior of the cabinet for easy gas service connection. The secondary heat exchanger has a 1/2” PVC pipe for attaching a coupling for ease of installation and cleaning of the required condensate drain. A 4” PVC cleanout cap that is drilled and tapped for a 1/2” NPT fitting is furnished with the heater for attaching the vent condensate drain.

The preeminent new internal feature is the Tcore3® heat exchanger and single burner combustion system. Other standard features include a single-stage gas valve, multi-try direct spark ignition with 100% lockout, pressure switch to verify vent flow, venter motor, aluminum venter wheel with housing, resiliently isolated axial fan and motor assembly, a high temperature limit control, interlock door switch, and a built-in disconnect switch. Operation is controlled through an integrated circuit board. The circuit board monitors heater operation and has LED diagnostic indicator lights to identify abnormalities in control functions.

Product Features

Up to 93% Thermal efficient ~ Most efficient unit heater in the world!

50-60°F Rise range.

Arranged for use with natural gas (propane conversion kit included with unit).

NEW Tcore3 ® titanium stabilized aluminized steel heat exchanger.

NEW patented A Tcore3 ® single burner combustion system including a one-piece burner assembly.

NEW extruded aluminum secondary heat exchanger (patent pending).

115/1/60 Supply voltage.

115 Volt open fan motor with internal overload protection.

Transformer for 24-volt controls.

Integrated circuit board with diagnostic indicator lights.

Multi-try direct ignition with 100% lockout.

Fan relay (included on the circuit board).

Single-stage natural gas valve (field adjustable for operation to 10,000 ft. [3,000 meters] elevation).

Vibration/noise isolated fan motor.

Sealed control compartment houses all electrical components.

48 frame, ball bearing, PSC venter motor.

4-point Suspension.

Built-in disconnect switch (20A @ 115V Rating).

External terminal strip for 24-volt wiring.

Sealed junction box for supply wiring.

External gas connection.

Fully gasketed door panel with safety door switch.

Full fan guard ~ engineered for safety.

Improved cabinet design with less visible hardware and a NEW Reznor appearance.

Product Warranty

5 years parts / 10 years heat exchanger

Viessmann Solar Hot Water Packages

Viessmann now offers prepackaged, specially engineered, complete, integrated Solar Water Heating Systems that make the most of the sun’s abundant energy.
All materials are highly reliable and work together to ensure superior system performance. Viessmann complete package is ready to be professionally installed quickly and easily.
All of this plus the added assurance of a detailed warranty plan. This package use Votosol 200-F flat plate solar collectors and 79 gallons Vitocell-V100 single-coil DHW tank. It does come with all items to complete installation. Mounting hardware is for Sloped or Shingled roofs.
Simplify the planning, ordering and installation of your solar system with our complete solar system packages. Choose from a single-tank system to integrate with a boiler system or from a retrofit preheat system as a preheat to an existing domestic hot water heating system.

Viessmann solar system packages are sized based on the typical domestic hot water requirements of a 3-4 person family.

Features and Benefits of the Viessmann Vitosol 200-F Solar Water Heating System:

• Optimized collection of solar energy thanks to highly efficient Sol-titanium coating.
• Rugged, high-quality construction using impact-resistant solar glass, copper, aluminum and nondegrading thermal insulation.
• 79 Gallon steel construction and Viessmann Ceraprotect permanent two-coat enamel finish.
• Maximum system performance and reliability with a full range of solar system components designed to integrate seamlessly.
• Fast installation with flexible connection pipes and quick-connect fittings. Prefabricated collector mounting hardware ensures easy connection to roofs.
• Suitable for many applications. Best suited for DHW or pool heating.
• OG-100 Certified by the Solar Rating and Certification Corporation (SRCC).

Viessmann Single Coils Tank Solar Water Heating system kit is intended for 3 to 4 person households and includes the following:

2- Vitosol 200-F, SV2 Flat Plate Solar Collectors, Total 49.5 Square Feet Area
1- 79 Gal, Vitocell-V 100 Single Coil DHW Storage Tank.
1- DN-20 Solar Divicon preassembled pumping station with integrated system fill manifold and automatic air vent and air separator.
1- SCU124 Solar Control Unit with DWH sensor and Collector temperature sensor.
1- Solar Expansion Tank 25L with mounting hardware.
1- Fast Air Vent with shut-off valve, brass piping tee and 2 brass compression couplings.
1- Pair of Interconnection Pipe between collectors.
1- General Connection Set for field ends.
1- Sensor Well Set for Vitorsol 200-F.
1- Mounting Hardware for sloped, shingled roofs.
1- Installation Fittings set to adapt from metric to 3/4" pipe.
1- Brass elbow with sensor well for tank temperature sensor.
5.3 Gallons of Tyfocor-HTL Glycol Solar Fill.
Factory tested.
Product Warranty
10 Years Panels/ 8 Years DHW Tank