DtiCorp.com Is Introducing The New Honeywell YP900A1004 Combustion Efficiency Panel

Fort Lauderdale, FL – Popular Honeywell online retailer DtiCorp.com (http://www.DtiCorp.com) is introducing the brand new Honeywell YP900A1004 combustion efficiency panel. The Honeywell Delphi YP900A Combustion Efficiency Panel is a loop-and-logic-based integrated flame safeguard control and fuel-air ratio control with O2 Trim capability for burner and boiler applications. The Delphi YP900A Combustion Efficiency Panel is a completed panel assembly which consists of RM7840L1075 burner safety controller with wiring subbase and S7800A1142 Keyboard Display module, built-in industrial panel PC with touchscreen display and a ABC900A loop-and-logic controller for load and O2 trim control. Also included in the YP900A Combustion Efficiency Panel assembly are O2 Sensor with mounting accessories and Hall-effect speed sensor with tachometer.

Integrated Flame Safeguard Control

-The Delphi Combustion Efficiency Panel integrates flame safeguard control, fuel-air ratio control, O2 Trim, variable frequency drive (VFD) control, and proportional integral derivative (PID) control into a single, integrated, pre-wired panel with a PC touchscreen for easy, user-friendly commissioning. The features integrated into the panel provide energy savings, reduced emissions, reduced installation costs and enhanced safety, all at your fingertips.

-It’s a complete system with all programs installed. The panel is pre-wired, which means reduced installation time for you and a lower installed cost for your customers.

-Easy-to-use touchscreen display shortens the time needed to configure fuel-air ratio control with O2 trim from days to just hours. The power of touch slashes the amount of configuration time. You’ll be able to get to more jobs — do more business — with the same number of people. That’s money in the bank.

O2Trim Creates Significant Cost Reduction

-The oxygen trim delivers impressive savings to your customers through reduced fuel use and increased burner efficiency, plus an environmentally responsible reduction in greenhouse gas emissions.

-A high-accuracy, fast-response O2 sensor drives efficiencies to new heights by continuously correcting and optimizing the fuel-air ratio. The unit also compensates for variable combustion air, trims the damper, and/or the variable frequency drive and the boiler to the most effective and efficient fuel-air ratio.

-The Delphi Combustion Efficiency Panel features up the ante in safety and savings in other ways as well:

- O2 sensor can conduct self-tests

- Long service life — no moving parts and no need to replace filters

- Depending on the burner and application, the unit can bring O2 levels down as low as 3 percent

- By reducing fuel use and greenhouse gas emissions, Delphi is great for both you and the environment

One Touch. Continuous Control.

-You won’t need a PC to commission or use Delphi thanks to true burner control integration that’s effortlessly accessed using the large, 12-inch touchscreen. Software for commissioning and control is embedded, so you won’t have to purchase additional software or do any integration work.

-The screen puts everything at your fingertips:

- Simplified set-up and commissioning for you; easy use for customers

- Intuitive user screens that make burner management a snap

- The flexibility and immediate access to make any adjustments, process setpoint, reset alarms functions, utilize reporting features and much more

- Fully integrated, easy-to-access help screens

Honeywell Always Puts Safety First

-One of the reasons Honeywell is the leader in flame control is that Honeywell always makes the safety of the installer, building manager, building occupants and surrounding community its first priority. The Delphi Combustion Efficiency Panel includes all the continuous checks and safety features you’d expect from a Honeywell product:

- Built-in checks and balances

- An array of alarms, limits and interlocks

Communication

-Delphi is communication enabled allowing you to easily tie the Delphi panel into your building automation system. This provides an easy way to monitor the boiler room remotely and always have the most current information on the status of the boiler. Delphi offers communications via Modbus or Bacnet TCP, making it easy to integrate.

Sophisticated Integration Efficiency that’s Simple to Install

-While Delphi offers a truly integrated flame safeguard and advanced logic control, it’s also designed to be simple to install and save you money by:

- Minimizing the amount of training required for combustion installers

- Offering one product that works with a wide variety of burners and boilers

- Requiring only field wiring (the panel is pre-wired), saving time and minimizing wiring-related liabilities

- Simplifying and dramatically reducing the time needed for commissioning

About Us: DtiCorp.Com (http://www.DtiCorp.com) carries more than 35,000 HVAC products, including industrial, commercial and residential parts and equipment from Honeywell, Johnson Contols, Robertshaw, Jandy, Grundfos, Armstrong and more. Our online catalog is easy to navigate and search, and all products have a picture and a description. If a customer has any questions about a product, they can call 800-757-5999 and speak with one of our product experts. Our mission is to offer the best prices anywhere to our customers.

Julian Arhire

Manager DtiCorp.com

Phone: 954.484.2929


Fax: 954.484.5155

Web: http://www.DtiCorp.com

###

Geothermal Systems Heating, From the Ground Up

The demand on maintenance and engineering managers to provide comfortable temperatures and good indoor air quality while keeping a tight grip on the budget is among their greatest challenges. On top of the energy costs, there is a maintenance cost for HVAC, boilers, chillers and cooling towers, which can stretch staff skills and time in many directions.

Yet there is a way to provide a high level of comfort without taxing the budget or the staff. The geothermal heat pump systems can cut maintenance and energy costs in half.

How Geothermal Heat Pump Works

Geothermal heat pump systems rely on the temperature of the earth to heat and cool buildings. While there is a variety of designs, the most popular design relies on heat pumps and a closed-loop system of pipes laid under the ground or a body of water.

The efficiency and simplicity of the system is due to the closed-loop system that acts as a large heat exchanger. The loop is filled with a heat-transfer fluid, typically water or a water-antifreeze mix. When a facility requires cooling, heat is transferred from a building to the earth. When heating a facility, heat is absorbed from the earth and transferred to the building.

The system utilizes a heat pump that uses a refrigerant cycle to take low quality heat and concentrate it to high quality heat. Pumps and fans then move the heat.

The system is efficient and simple because it moves heat and does not create heat. In addition, while most mechanical cooling systems work under the same principles, geothermal systems gain efficiency because of the size of their primary heat exchanger — the loop.

At the heart of the process are two thermodynamic principles: Heat always flows from hot to cold, and the greater the difference in temperatures, the higher the rate of heat transfer.

Six to eight feet beneath the surface of the earth, the ground maintains a constant annual temperature from 45 in the north latitudes to 70 degrees in the south. Because the earth’s temperature is stable and the ambient air temperature is not, there is a seasonal differential in most climates that makes the geo-thermal process efficient.

Cost Savings

The relative simplicity of the systems is in part what makes them cost effective. Geothermal heat pump systems do not rely on boilers and cooling towers. Since reversing-cycle technology is deployed at the point of use, there are only two pipes to provide heating and cooling, not four like most conventional systems. And there are no large chillers in the mechanical room or an array of packaged units on the roof exposed to the elements and creating potential problems for the roofing system. All the critical equipment, except the ground loop — pumps, scroll compressors and fans — are inside the building, protected from the elements.

The heat pumps are generally small, which makes them more flexible in terms of design. While some manufacturers will produce 50-ton capacity pumps, most run from 2-10 tons for commercial and institutional markets. To achieve a higher tonnage capacity, multiple heat pumps are linked together. The heat pumps can be fixed in a zone distribution network that allows for point-of-use heating or cooling.

Cost Matters

There are other savings, too. Most of the piping in these systems is polyethylene plastic piping, like gas-line pipe, rather than copper or ferrous-based piping. Ductwork generally is not a part of the installation except for point of use distribution and fresh-air delivery.

There are also maintenance and operational savings. According to the American Society of Heating, Refrigeration and Air-conditioning Engineers (ASHRAE), the annual maintenance cost for a conventional boiler, chiller, cooling tower system is 65 cents per square foot. For a geothermal system that cost is 22-25 cents per square foot. The cost is lower because there is less equipment that needs attention.

Of the maintenance tasks necessary, changing filters was the highest. Less than half as many tasks involved lubrication and checking fan belts, the study notes. There are no water quality problems to worry about. You don’t have to clean or treat a cooling tower. There’s virtually no maintenance to the heat pump. About the only cost is to change filters and maybe check on the circulation pumps’ packings and on the fan belts.

The heat pumps themselves come as self-contained units that are tested at the factory. Even the refrigerant is in a sealed system that requires no checking.

Technology Evolves

Geothermal heat pump technology is energy efficient, offering energy costs about 25-50 percent less than those for a conventional system. Recent changes in the technology have made a significant difference.

The biggest change came when the industry switched from reciprocating compressors to scroll compressors. There was a sizable increase in efficiency there. Manufacturers also started using variable speed fans and compressors. There also have been improvements in reversing and expansion valves in pumps and evaporative coils.

Geothermal heat pump systems have lifespans of 22 years or more and in-ground piping can last 50 years or more. As a result of these and other changes, efficiency has improved. The coefficient of performance for these systems went from 3 to 4.5, and SEER ratings from 13-14 to 17-18. Additional changes in the technology and installation has made these systems better life-cycle investments. For instance, much of the joining of the ground pipe is done in the factory under controlled conditions, rather than in the field. When joints must be made in the field, the tools to do that have been improved. Leaks in the loop are practically unheard of.

Life-Cycle-Cost Advantage

Because a significant portion of the cost of these systems is in the installation of the buried loop, the costs for the whole system begin to decrease as the system gets bigger. Fifty tons is about the breaking point. At that point, the cost of digging more trenches or drilling more wells doesn’t continue to increase at the same rate because the contractor has already brought in his equipment and the work crews are at the site.

The first cost of the system depends on many local variables. Is there competition in the area for geothermal systems? Are well drillers readily available? What is the soil and geology of the area? These systems can more than pay for themselves over the years, avoiding costs on maintenance and roof repairs, and because equipment, principally the loop system, lasts so long, the energy efficiency is really the icing on the cake.

DtiCorp.com Is Introducing The New Honeywell C7262A1008 Carbon Dioxide and Temperature Sensor

Fort Lauderdale, FL – Popular Honeywell online retailer DtiCorp.com (http://www.DtiCorp.com) is introducing the brand new Honeywell C7262A1008 Carbon Dioxide and Temperature Sensor. The C7262 sensor is a stand-alone carbon dioxide (CO2) and temperature sensor for use in controlling room ventilation and temperature. These new CO2 sensors now offer on board 20K ohm temperature sensing, which reduces the number of devices needed on the wall. The existing C7232 and C7632 families of CO2 sensors will continue to remain an important part of the Honeywell CO2 portfolio.

Features:

- Used for CO2 based ventilation control

- Non-Dispersion-Infrared (NDIR) technology used to measure carbon dioxide gas

- Integral 20K ohm output

- Available with LCD that displays the CO2 sensor ppm level

- Provides two selectable CO2 outputs. Each output can be configured for either voltage (0/2-10Vdc) or current (4-20mA)

- Adjustable 0-2000 ppm, 500-1500 ppm, 0-1500 ppm, or 500-2000 ppm range

- Both models offer one spst ouput, settable for 800 ppm, 1000 ppm or 1200 ppm

- Automatic Background Calibration (ABC) algorithm based on long-term evaluation reduces required typical zero-drift check maintenance

- Cost/Time Savings: Save your customers money by reducing installation time when installing a single device rather than separate CO2 and temperature sensors

- Updated Look: The C7262A adopts the same design as our top selling TR20 Series Temperature Sensors, providing aesthetic consistency in new installations and retrofits

- Convenience: The LCD model shows the CO2 ppm level for quick access to information

- Multiple Applications: Two models cover virtually all wall mount needs for CO2 sensing

Specifications:

- Description: Carbon Dioxide and Temperature Sensor, Non-dispersive infrared

- Mounting: Wall mount

- Display: Yes

- Carbon Dioxide Range: 0 to 2000 ppm, adjustable

- Analog Current Output: 0/2 – 10 Vdc or 0/4 – 20 mA selectable, w/ one relay output

- Relay Output – One: Normally Open SPST

- Electrical Connections: Six leadwires, 20-gauge, 8 in. long

- Voltage: 24 Vac/dc ±20%,

- Frequency: 60 Hz

- Frequency: 50 Hz

- Temperature Sensor Range (F): 50 F to 100 F

- Operating Temperature Range (F): 32 F to 122 F

- Operating Temperature Range (C): 0 C to 50 C

- Timing (response): 1 minute

- Sensor Type: Non-dispersive Infrared (NDIR)

- Accuracy: ± (30 ppm + 2% of reading)

- Dimensions (in.): 4 9/16 in. high x 3 in. wide x 7/8 in. deep

- Dimensions (mm): 116 mm high x 76 mm wide x 22 mm deep

- Includes: Honeywell Logo

About Us: DtiCorp.Com (http://www.DtiCorp.com) carries more than 35,000 HVAC products, including industrial, commercial and residential parts and equipment from Honeywell, Johnson Contols, Robertshaw, Jandy, Grundfos, Armstrong and more. Our online catalog is easy to navigate and search, and all products have a picture and a description. If a customer has any questions about a product, they can call 800-757-5999 and speak with one of our product experts. Our mission is to offer the best prices anywhere to our customers.

Julian Arhire

Manager DtiCorp.com

Phone: 954.484.2929

Fax: 954.484.5155

Web: http://www.DtiCorp.com

###

Basic Information About Portable Air Conditioners

HVAC technology developments today are giving facility executives options and solutions to their HVAC system requirements that were not available in the past. Equally important, they do not have to sacrifice performance or operating costs to implement these solutions.

The growing dependency on air conditioning for building occupants and equipment cooling has given rise to an entire new generation of cooling equipment that is portable. While building air conditioning systems are very dependable, there are times when they simply aren’t available. Failure of central air conditioning or distribution equipment can shut down systems for extended periods of time. Failures in the building electrical distribution system or the utility company’s system can also shut down large building central air conditioning systems for long periods of time. High levels of electrical demand can force shutdowns of air conditioning systems for several hours.

The problem that many facility executives face is that many of their building occupants cannot afford to be without air conditioning. Computer systems rapidly overheat without air conditioning, forcing system shutdowns that may cost tens of thousands of dollars per minute. Telecommunications equipment is equally sensitive to heat; operations throughout the facility can be disrupted if sufficient air conditioning is not available.

To help protect their operations from disruptions caused by air conditioning outages, many facilities have invested in portable air conditioning units that can be rapidly moved to the required area and installed easily. Units are available in a wide range of capacities and several different configurations, allowing them to be used in practically any application. Many simply plug into standard electrical outlets. Others with larger capacities may require special or dedicated electrical connections.

Applications for portable cooling systems go well beyond those caused by equipment failures. Maintenance operations use the systems to provide cool air to personnel working in confined spaces, such as boiler interiors during shutdowns for inspection or repair. Building occupants use portable units to provide after-hours air conditioning to personnel working in spaces where the central air conditioning system has been shut down to conserve energy. The units can be used to provide supplemental air conditioning to areas where the cooling loads may temporarily exceed the capacity of the central system. Portable air conditioning units are frequently used to provide conditioned air for special events, such as those held outdoors in tents during summer months.

There are two major categories of portable cooling systems: air-to-air systems and water- or refrigerant-based systems. Most portable air-to-air systems have a capacity of one ton or less. They are rolled to the required location and plugged into a standard electrical outlet; the conditioned air is directed where it is needed. Heat from the unit’s condenser is discharged through a window to outside the facility by means of a section of flexible duct. In cases where the unit cannot be located close to a window and the portable unit is to be used for only a short period of time, the heat from the unit’s condenser can be vented above the drop ceiling through ducts. Larger air-to-air systems, typically in the range of one to five tons, can be located outside the facility with the cool air ducted through a window or other building opening.

In cases where it is not easy to duct the portable unit’s condenser heat away from the conditioned space, or where larger capacity units are required, portable cooling systems using once-through water cooling can be used. Available in capacities of up to five tons, the units are fully mobile, requiring only electrical, water supply and drain connections.

The most appropriate applications for portable cooling systems are those that are temporary, either emergency or planned. But portable cooling systems should not be used as permanent fixes for building HVAC problems. While the systems are efficient and dependable, they cannot match the performance of a properly designed and installed building system. Permanent problems are better addressed through modifications of or additions to the existing building system.

DtiCorp.com Is Introducing The New Honeywell ML4115A1009 Actuator

Fort Lauderdale, FL – Popular Honeywell online retailer DtiCorp.com (http://www.DtiCorp.com) is introducing the brand new Honeywell ML4115A1009 Fast-Acting, Two-Position Actuator – 30 lb-in, Spring Return CCW, 120 Vac +/-10%. The ML4105, ML4115, ML8105, and ML8115 Fast-Acting, Two-Position Actuators are spring return direct coupled actuators (DCA) with an integral junction box for on/off damper control. The actuator accepts an on/off signal from a single-pole, single-throw (spst) controller. Models are available with clockwise (cw) or counterclockwise (ccw) spring return and are designed to operate reliably in smoke control systems requiring Underwriters Laboratories Inc. UL555S ratings up to 350°F.

Features:

- 30 lb-in. (3.4 Nm) minimum driving torque at 350°F (176°C).

- Integral spring return ensures level of return torque.

- Stainless steel internal spring.

- Fifteen-second spring return timing.

- No special cycling required during long-term holding.

- No audible noise during holding.

- Patent pending design eliminates need for limit switches to reduce power consumption.

- Models available for 24 and 120 Vac.

- Ninety-five degree angle of rotation.

- Actuator holds rated torque at reduced power level.

- Die-cast aluminum housing.

- Housing design allows flush mounting to damper.

- Integral junction box with three conduit openings

Specifications:

- Minimum Damper Shaft Length: 1-3/4 in. (45 mm).

- Device Weight: 5 lb (2.3 kg).

- Stroke: 95° ± 3°, mechanically limited.

- Honeywell does not recommend using linkages with these actuators because side-loading of the output hub reduces actuator life.

- Temperature Ratings:

- Ambient: 0°F to 130°F (-18°C to 55°C).

- Shipping and Storage: -40°F to 140°F (-40°C to 60°C).

- The actuator is designed to meet UL555S standards at 350°F (176°C). The actuator must be tested with the damper to achieve this rating.

- Humidity Ratings: 5% to 95% RH noncondensing.

- Noise Rating (Maximum):

- Driving Open: 65 dBA at 1m.

- Holding: 20 dBA at 1m (no audible noise).

- Cycling Requirements: Prolonged holding-period (1 year) testing of these actuators has been performed with no spring return failures. The actuator and the internal spring are designed to require no special cycling during long-term holding. Honeywell recommends following all local, state and national codes for periodic testing of the entire smoke control system. Refer to National Fire Protection Association (NFPA) National Fire Codes®: NFPA90A, NFPA92A and NFPA92B for your application. NFPA recommends periodic examination of each fire/smoke damper (semi-annually or annually) to ensure proper performance.

- Design Life (at Rated Voltage): 60,000 full stroke cycles.

About Us: DtiCorp.Com (http://www.DtiCorp.com) carries more than 35,000 HVAC products, including industrial, commercial and residential parts and equipment from Honeywell, Johnson Contols, Robertshaw, Jandy, Grundfos, Armstrong and more. Our online catalog is easy to navigate and search, and all products have a picture and a description. If a customer has any questions about a product, they can call 800-757-5999 and speak with one of our product experts. Our mission is to offer the best prices anywhere to our customers.

Julian Arhire

Manager DtiCorp.com

Phone: 954.484.2929

Fax: 954.484.5155

Web: http://www.DtiCorp.com

###