ABDM - automated temperature control system for installation
ABDM Inc, a local engineering company was looking for a HVAC Energy Management Firm capable of designing and building an automated temperature control system for installation in a new state of the art cardiac care facility in downtown Moscow Russia.
Binsky and Snyder Service Inc. worked closely with the engineering staff at ABDM and a Russian engineering firm to put together a design. Using state of the art Honeywell Excel 5000 control components and various automated valves we completely automated the new hospitals physical plant by controlling the boilers and chillers to provide the facility with comfort heating and cooling and domestic hot water.
The entire automated control system including actuators, controllers, built up automated control panels, valves and installation instructions was manufactured and packaged for shipment to Moscow Russia at Binsky & Snyder Services Piscataway New Jersey facility.
The Honeywell control system was shipped to Russia containing all proper paperwork necessary for overseas shipment to France and overland transportation to Russia.
The system was cleared by Russian customs agents and installed by Russian electricians using installation manuals translated from the English language to Russian by ABDM Inc.
The entire HVAC automated control system was installed on time as planned and commissioned by automated control system Engineers from Binsky and Snyder Service, Inc. Staff.
The control system is maintained by Honeywell Inc., Moscow Russia.
New Jersey Institute of Technology (NJIT), Newark The project - setting up a preventive maintenance program for New Jersey Institute of Technology, in Newark, New Jersey. At the end of the 1980’s, NJIT had added several new buildings to their campus, with more on the way. The new buildings contained the latest technology in HVAC and Energy Management Controls. The additional equipment was taxing the in-house maintenance program.
Binsky & Snyder Service was involved with much of the construction and commissioning of the new equipment. We worked with NJIT’s staff, to develop and implement a program of maintaining the new equipment , to keep it running efficiently, with minimal breakdowns. Specific task and check-lists were developed for each piece of equipment on inventory . The frequency of inspection was determined according to seasonal versus year-round operation. Each piece of equipment was identified and labeled, and history was recorded . As inspections were made, recommendations for repairs or modifications were made. Reports can be generated to assist budgeting units for replacement or major overhaul.
Binsky & Snyder Service and NJIT came into the nineties. We assisted NJIT with developing a Refrigerant Management Program for their site. Refrigerant usage is tracked by equipment inventory and building. Leaks and usage are tracked and identified through this program. Problem units can be identified and budgeted for repairs or replacement.
Binsky & Snyder Service and NJIT have worked together to upgrade Energy Management Controls in older buildings. Digital controls and electro-pneumatic transducers were installed, resulting in greater comfort and lower energy usage.
The equipment serviced, ranges from 1 ½ ton split systems to packaged rooftop units, with a mix of absorbers and centrifugal chillers, and various process and lab equipment thrown in. The result of the program is customer satisfaction, minimal break-downs, energy savings, and better comfort for the campus.
When a local commercial property owner needed one of its rental properties re-fit to conform to a 9000 square foot child care facility they called Binsky & Snyder Service, Inc. we needed to perform the entire tenant fit-up within four (4) weeks to enable the newly formed child care facility to have its grand opening in time for summer sign up.
Binsky & Snyder Service immediately proceeded to design a heating, air conditioning and ventilation system that would conform to New Jersey state regulations for child care facilities and the owners requirements and budget.
The facility had a requirement for three separate heating and cooling zones for infants, preschoolers and grades 1-3. Binsky & Snyder Service designed a ducted system to comply with the requirement. All three areas had to have their own temperature controls.
Trane Rooftop Heating and Cooling Systems were selected because of their conformance to design criteria and their speedy delivery schedule.
A Honeywell Excel 5000 Automated Energy Management System was selected because of the systems ability to control, monitor and store the equipment's occupied and unoccupied schedule within one controller making installation of the system an economical alternative to most other systems. The control system also has a built in modem within that is used to access the system from off site to schedule changes in operation.
Binsky & Snyder Service, Inc. presented a design and build plan to the owners by the end of the first week.
The plan specified the ductwork, diffusers and grills for proper air distribution. Three trane rooftop heating and cooling units with economizers, Penn Ventilation Fans for all bathrooms (there were nine) and a Honeywell Energy Management System with remote access capability.
The design was approved by all and submitted to the local authorities. When final approvals were received duct fabrication started. Equipment was ordered soon after duct fabrication. The energy management system was fabricated at Binsky & Snyder Services facility.
There were some minor adjustments to the original plan and schedule during construction but the child care facility had its grand opening exactly four (4) weeks after the project started.
Customers were greeted in a bright new air conditioned facility totally unaware of the flurry of activity over the past four (4) weeks to transform a warehouse in to a first rate child care facility.
Rutgers University, Olsen Hall - Fume Hood Control Renovation
Rutgers hired a consulting engineer to find a way to reduce the energy usage in Olsen Hall. The consulting engineers came up with a plan to reduce the energy usage by reducing the amount of air that is moved through the building. The consulting engineers contracted ABDM Inc. as the control engineer for the project. ABDM Inc. supplied us with an input and output points list, and the sequence of operation for the control system. The consulting engineers contracted us to install the system. We put together a control system to match the engineer’s specs. We installed, programmed, and commissioned the control system.
There are 35 chemistry labs in the building. There are 78 lab hood exhaust fans that ran continuously. Each of the small hoods has a single exhaust fan and the larger hoods have dual exhaust fans. Two constant volume air handlers supplied conditioned 100 % outside air to the labs. Another constant volume air handler supplied 100 % outside air make up to the lab hoods. Each lab had a reheat coil in the supply duct controlled by a room thermostat.
All of the supply and exhaust fans were running continuously. The three supply fans supply 100% outside air to the building and the 78 exhaust fans exhausted it all.
The system uses seven XL500 controllers to monitor and control 430 physical points. The operator workstation is a graphics version of Excel Building Supervisor (XBS). There is also an XM100 modem module for remote communications.
When any labs are unoccupied the new control system reduced the amount of air that is being moved through the building. The control system also sets back the space temperature setpoints of any labs that are unoccupied. Because of this they are using less energy to condition to spaces.
Variable speed drives were installed on the air handlers. A static pressure sensor was installed in the supply duct of each air handler to modulate each variable speed drive. Two speed motors were installed on the exhaust fans that served small hoods with single exhaust fans. A relay was wired to the lights in each lab that signals to the control system when the lights are turned on. A static pressure transmitter was installed in each lab. It modulates the makeup air damper in the lab to keep the pressure in the room below the pressure in the hallway.
When the lab is unoccupied all of the two speed exhaust fans in that lab switch to low speed and one of the fans in each of the large lab hoods shut off. The Control System modulates the makeup air damper closed to reduce the amount of makeup air entering the room to keep the pressure in the room below the pressure in the hallway. The Control System maintains space temperature by modulating a supply air damper and reheat coil in the lab to maintain the unoccupied room temperature setpoint.
When the lab is occupied all of the two-speed exhaust fans in that lab switch to high speed and both fans in all of the large lab hoods start. The Control System modulates the makeup air damper open to increase the amount of makeup air entering the room to keep the pressure in the room below the pressure in the hallway. The Control System maintains space temperature by modulating a supply air damper and reheat coil in the lab to maintain the occupied room temperature setpoint.
The control system monitors the current draw of each exhaust fan and gives an on/off or high/low status indication for each exhaust fan. A fan failure alarm is generated if a single speed exhaust fan is commanded on and the current reading for that fan is not above the motor current setpoint. A fan failure alarm is also generated when a two speed exhaust fan is commanded to low speed and the current reading is not above the low speed current setpoint, or if the fan is commanded to high speed and the current reading is not above the high speed current setpoint.
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