The TechCold SolutionTechCold International (TCI) is on the cutting edge of energy saving refrigeration control technology. With a proven track record of delivering effective control solutions for over 10 years, TechCold provides both the technological solutions to control system challenges and the know-how for implementation in today’s global markets.

TechCold’s mission is the reduction of energy consumption, helping organizations increase profi tability while reducing greenhouse gas emissions. This mission has led to the development of TechCold’s line of control products.

TCI’s energy saving technology ties in seamlessly with existing refrigeration control systems or can be part of a new control implementation.

TechCold Values • Integrity – in all business dealings

• Honesty – in all communications

• Dedication – to service in all projects

• Respect – for all stakeholders

TechCold’s Core StrategiesTechCold International has built its business around the fundamental belief that to be a leader in the global refrigeration control industry, the company must focus on the following:

PeopleTechCold‘s employees are highly skilled professionals who will work for you. We can provide the information and technical support necessary to maintain the most effi cient and effective refrigeration control solution to meet your needs. Whether it‘s software development, PLC programming, engineering or instrumentation…we have the people.

Research & DevelopmentTechCold is on the cutting edge of control technology due in large part to the never-ending efforts put forth by its employees to keep abreast of current technologies pertaining to the mechanical and controls side of industrial refrigeration.

ServiceWe have developed the infrastructure required to provide you with sustainable, high quality service regardless of your plant location. Through alliances with implementers and remote monitoring, we can help you with any questions or concerns that you may have about your system.

QualityBy focusing on designing user-friendly systems based on off-the-shelf components, offering tech support and detailed operational guidelines, you can be assured that we will provide a complete controls package... for today and tomorrow.

GrowthBy providing non-proprietary control solutions and through developing strategic alliances with multi-national organizations, TechCold is poised to expand its markets on a global scale.

EnvironmentBy reducing energy, we are not only helping you increase your “bottom line”, we are helping you reduce greenhouse gas emissions which has been proven to be a leading cause of global warming. Through our extensive R&D efforts, we are continually researching new ways to reduce energy consumption in industrial refrigeration applications.

The TechCold TopologyWithout Existing Centralized Control:

The TCI will provide a complete refrigeration control solution, including:

• All necessary hardware for automated I/O (Input/Output)

• All necessary software:

- Operational Parameters - Graphics - Alarming - Trending - Customized Graphics

With Existing Centralized Control:

The TCI will work with and complement your existing system by:

• Integrating with your PLCs

• Providing high-end operational algorithms to reduce energy use

• Adding customized graphics as necessary

Typical Integration with PLC and Remote

Testimonials We had two other competitors for control systems. TechCold had a great price and great service. In 2010, we will be building a 4Plex and will be putting a new TCI Pro-Act XP Control System in the new facility.

- Ms. Debbie Allen, Facilities Manager, Quispamsis Memorial Arena, Quispamsis, NB

The staff from (TechCold) has been a pleasure to deal with. They have gone out of their way to give all four of the City of Fredericton arenas, all of which have Pro-Act Arena Controllers, prompt and efficient service…….The Controller was installed as an energy saver and has accomplished that task very well. We have calculated that we have received energy savings in the range of 25%.

- Mike Murray, Facility Manager, Lady Beaverbrook Arena, Fredericton, NB

Since we installed the TCI Refrigeration Control System, it has made life a lot easier for the refrigeration operators. The refrigeration plant is so stable now. This frees up a lot of time for the operators to do other things. We were able to cut down on the operator coverage, which is a substantial yearly savings. We have a lot of peace of mind with the TCI System. I can tell with one glance how the plant is running.

- Bob Simpson, Chief Engineer, Atlas Cold Storage, Toronto, ON

We are very pleased with the operation and service of our TCI refrigeration Control System. The system runs very smoothly, and we are already seeing significant energy savings. Our discharge pressure is constant and we are experiencing fewer and shorter defrost cycles. Our refrigeration engineers find the interface controls very user friendly and helpful in monitoring our processes.

- Mark Ingerman, Grand Bank Seafoods, Nfld.

The ease of access through PC remote allows regular checking and adjustments, when necessary, from away with a great number of changes available. It integrated smoothly with our system and has greatly improved control features and monitoring abilities. The ability to have power save features has indeed proven itself as well… we have reduced our normal bill by 15-20% on average.

- Peter Frye, Bayside Foods Terminal, NB

TechCold‘s product and systems knowledge has been extremely helpful. Even more important to us has been the extensive “hands on” familiarity and experience in the area of industrial refrigeration.

– Joel McLaughlin, Paturel International

We have found TechCold to be a highly dedicated and professional company with a strong drive to deliver a fully integrated quality solution. We found the staff at TechCold to be very knowledgeable of the refrigeration plant and very willing to work with ourselves and a refrigeration consultant to achieve a very successful project. We very much look forward to working with TechCold in the future and would recommend their system to any potential customers.

- Charlie Francis, Technical Director, Eltek Systems Ltd

TechCold SolutionsEvaporator Control:

• Discharge pressure reset during hot gas defrost in order to allow reduced head pressure at other times

• Zoned control through separate temperature indications allow “load shifting”

• Anti-stratifi cation fan control instead of continuous operation

• Separate temperature scheduler for each evaporator

• Full temperature alarms with time delays

• Adjusts the defrost frequency based on run time and time of year

• Manual defrost capability

Dynamic Compressor Set Selection:

• Screw compressors are ineffi cient at low slide valve settings, operates the compressors as close to a 100% slide valve setting as possible

• Adapts well with variable speed compressors

TCI creates and models all possible sets of compressors in software. When in a period of low volatility, the existing compressor set can be replaced with one of higher effi ciency.

Dynamic Discharge Control:

• Discharge must be high enough for proper process control

• Discharge must be as low as effectively possible

TCITCI fl oats the discharge pressure based upon the ambient wet bulb conditions and the requirements of the fl oats the discharge pressure based upon the ambient wet bulb conditions and the requirements of the TCI fl oats the discharge pressure based upon the ambient wet bulb conditions and the requirements of the TCITCI fl oats the discharge pressure based upon the ambient wet bulb conditions and the requirements of the TCI fl oats the discharge pressure based upon the ambient wet bulb conditions and the requirements of the system. The pressure setpoint will be automatically reset to insure each evaporator has the proper defrost system. The pressure setpoint will be automatically reset to insure each evaporator has the proper defrost pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or

TCI fl oats the discharge pressure based upon the ambient wet bulb conditions and the requirements of the system. The pressure setpoint will be automatically reset to insure each evaporator has the proper defrost pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or variable speed fan control.pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or pressure. Special algorithms prevent over-shoot when discharge pressure setpoint changes. Fixed, 2 speed or variable speed fan control.variable speed fan control.variable speed fan control.variable speed fan control.variable speed fan control.variable speed fan control.

Compressor Capacity Modulation:

• Normal lead-lag control often requires more energy than necessary

• At times it is best to use two compressors for modulation while at other times, one is best

• Incorporates variable speed compressor control

TCI calculates part load ratios and determines which compressor(s) to modulate for maximum effi ciency.

Ongoing TechCold Initiatives

Dynamic Suction Control:

• Too low a suction pressure wastes energy by decreasing compressor COP

• Too high a suction wastes energy by increasing evaporator runtime

• Suction can be based on the dynamic product or room temperature requirements instead of on a fi xed pressure

TCI allows dynamic reset of the suction pressure to accommodate the present product or room requirements instead of a “worse case” setpoint.

Refrigeration Plant Health Indication:

• Through real time analysis, TCI indicates abnormalities in the operation of the condenser, compressor and evaporator components such that proactive maintenance can usually restore proper operation and gain maximum savings

• Indications of energy use with TCI operation, what it would have been previously and what the potential is for further savings—all in chart form

TechCold’s Operational Screens (partial list)

Compressor Control Screen Condenser Control Screen

Manual Compressor Control

Alarm Screen

Evaporator Control Screen Custom HMI Screens

TechCold’s Performance Indicators

Energy Comparison Screen Energy/Demand Cost Calculator

Real-Time Energy SavingsHistorical Data Trending

Other TCI Features:• Full historical trending and automatic report generation software package

• Auto reports can be emailed or printed

• Full HMI package for custom graphics

• Alarm Auto Dialer can dial out on any TCI variable, up to 110 alarms

• Demand and consumption limit control option

• Compressor and suction settings and condenser rankings are saved in “profiles” and can be recalled at any time

Other TechCold Products

Pro-Act “Plus” Ice Rink Controller - Single Pad Arenas

The Pro-Act “Plus” Rink Controller is your feature rich solution for basic rink control, and includes TechCold’s “TechArena” front-end computer graphics software!

• Controls: - 1, 2 or 3 compressors - Cold brine pump - Alarm relay with 2 dry contacts

• Controls ice temperature based on infra-red or return brine temperatures

• Monitors and alarms on: - Infra-red ice temperature - Brine supply and return temperatures - Brine pump status (or fl ow with optional fl ow switch)

• Compressor lock out on: - Low brine outlet temperature - Loss of brine fl ow (with optional fl ow switch)

• Intelligent pump cycling saves energy by only operating brine pump when required. Auto-cycle reduces warm spots while in energy-saving mode

• 4 event x7 day scheduler with TechCold’s “Auto Anticipate” ensures ice is at set-point when the game starts

• Pro-Act’s exclusive artifi cial intelligence provides precise ice temperature readings within 0.1 ºF and control within 0.5 ºF as temperature fl uctuations from players and equipment are ignored with special software

Pro-Act “XP” Ice Rink Controller - Single or Multi-Pad Arenas

The Pro-Act “XP” Rink Controller is your all-in-one solution for single and multi-pad arenas, and includes TechCold’s “TechArena” front-end computer graphics software!

• Controls up to 4 refrigeration systems with 4 ice sheets each

• Controls up to 8 compressors per system

• Controls up to 2 brine pumps per rink

• Controls ice temperature based on infra-red, slab or return brine temperatures

• Controls up to 8 stages of condenser per system with energy saving fl oating head pressure control (optional)

• Monitors and Alarms on: - Infra-red / slab temperature - Brine inlet and outlet temperatures - Compressor status - Brine pump status - Brine fl ow status - Condenser fans/pumps status (optional) - Discharge pressure (optional)

• Monitors: (optional) - Ambient temperature - Ambient humidity - Suction pressure

• Compressors lock out on freeze protection or loss of brine fl ow

• Auto change-over feature changes to brine control if the infra-red camera fails

• Intelligent pump cycling saves energy by only operating brine pump when required. Auto-cycle reduces warm spots while in energy-saving mode

• 4 event x7 day scheduler with TechCold’s “Auto Anticipate” ensures is at set-point when the game starts

• Pro-Act’s exclusive artifi cial intelligence provides precise ice temperature readings within 0.1 ºF and control within 0.5 ºF as temperature fl uctuations from players and equipment are ignored with special software

• Standard PLC control of devices such as under fl oor heat and dehumidifi ers

• Pro-Act’s exclusive artifi cial intelligence provides precise ice temperature readings within 0.1 ºF and control within 0.5 ºF as temperature fl uctuations from players and equipment are ignored with special

• Standard PLC control of devices such as under fl oor

• Controls up to 8 stages of condenser per system with energy saving fl oating head

Contact UsFor more information about our TechCold products and how we can help your organization become more energy effi cient and profi table in today‘s competitive markets, please refer to the contact information listed below. We look forward to hearing from you!

TechCold International127 Rocky RoadKeswick Ridge, NB Canada E6L 1V1

Toll Free: (800) 807-3282 (DATA)Telephone: (506) 363-3068Fax: (506) 363-3069Email: info@techcold.comWeb: www.techcold.com

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