Temperzone Econex Packaged Units

Introduction

Econex Packaged systems offer a lower GWP solution with superior efficiency. Temperzone provides versatile air-cooled packaged solutions for your buildings, from light to large commercial applications. The use of inverter compressors allows for precise load variation response and superior part-load performance, ensuring closer comfort control and higher energy efficiency.

Utilizing R32 Refrigerant, Econex Packaged units enable a 71-81% reduction of Global Warming Potential (GWP) per kW of cooling when compared to R410a units. Temperzone aims to lead the commercial HVAC industry in reducing the global warming potential of air conditioning products.

Features

• Inverter Compressor: Closely matches performance to load requirements during all seasons.
• EC Plug Fan: High static plug fans that can be externally controlled via 0~10VDC or BMS command.
• EC Condenser Fans: Provide greater efficiency and control with soft starting and low air noise.
• Dual EEV Systems: Offers optimum control of superheat for outstanding comfort and humidity control (available on OPA 250-560 only).
• Intelligent Unit Controller: Ensures the unit runs at its optimum efficiency and provides system operation data.
• Wide Temperature Operating Range: Operates from -15°C to +52°C ambient.
• Corrosion Resistant Design: Features marine-grade surface protection and epoxy-coated coil protection.
• Economy Cycle: Optional economy cycle and fresh air for reduced power consumption in shoulder seasons.
• Low GWP Refrigerant: R32 refrigerant has a significantly lower GWP than R410A.
• New Compact Design: Reduced unit footprints for easy and cost-effective unit placement.
• New Intelligent De-ice: Quick and efficient de-ice resulting in increased heating performance.
• BMS Connectivity: BACnet™ or Modbus via RS485 (or TCP/IP option).

Lower Global Warming Potential Air Conditioning

With a smaller refrigerant charge and a GWP of 675*, OPA Econex R32 refrigerant units result in a 71-81% reduction in overall GWP per kW of cooling or heating when compared to R410A systems (GWP 2088*). As higher GWP refrigerants face increasing cost due to emissions tax levies, the specification of R32 systems will represent a significant reduction in the future costs associated with owning and maintaining these systems.

Close Comfort Control

Econex Inverter compressor technology delivers precise control of indoor air temperatures for superior year-round comfort with leading energy efficiency. Unlike fixed speed air conditioners that cycle between full or no capacity, Econex units use variable capacity inverter compressors and electronic expansion valves for precise load variation and efficient response to varying conditions.

The OPA 820 to 2110 feature multiple refrigeration systems with inverter and fixed speed compressors, staged to come online as needed, enabling variable capacity control and energy-efficient operation.

Seasonal Energy Efficiency (SEER)

Superior seasonal performance is achieved with Econex Inverter technology. The Econex range, when compared to the same capacity fixed speed units, has considerably higher seasonal energy efficiency factors. Units operate the majority of the time at part load, where inverter compressors and variable speed fans are more efficient. MEPS EER condition (T1) is a single point where units rarely operate; SEER estimates real use by overlaying bin hours to show actual efficiency is better for variable speed systems.

Energy Saving Technology

Intelligent system control technology offers leading energy efficiency with precision control of the air conditioners refrigeration system. High-efficiency EC fan motors are up to 50% more energy efficient than Belt drive or AC motor alternatives, enabling quiet operation with slow ramp-up and no sudden noise changes. Achieve precise comfort with custom select fan speeds or continuously variable fan speed control.

EC Plug Fans: Control airflow accurately and efficiently. Fan speed can also be controlled via external signals. Features include high static pressure, variable airflow operation, longer motor life, lower maintenance costs, soft start for quiet operation, and longer bearing life.

EC Condenser Fans: Increase overall efficiency. Infinitely variable fan speed control optimizes refrigeration efficiency in all climatic conditions. Features include up to 50% more efficiency than AC fan technology, high static pressure, minimized power consumption under optimized floating head pressure control, and quiet operation mode.

High Performance Design

Econex units offer extra capacity with very wide heating and cooling ranges, enabling reliable comfort at times of peak load and increased energy savings under low load conditions. These R32 packaged units are designed to operate in ambient temperatures from -15°C to 52°C* to ensure comfort in the harshest conditions.

Electronic Expansion Valves (EEV)

Electronic Expansion Valves (EEV's) optimize refrigeration systems by ensuring the evaporator coil is fully utilized at all times, leading to increased energy savings. Discharge pressures can be lowered based on ambient conditions by increasing the speed of the EC condenser fans, resulting in even higher savings. EEV's enable improved efficiency and reduced operating costs at part-load conditions and facilitate maximized energy savings during shoulder seasons.

Advanced & Super Dry Mode

Econex offers superior levels of Dry Modes to suit your requirements. Advanced Dry Mode and Super Dry Mode utilize optimized Dual Electronic Refrigeration Valve control (IP protected) for exceptional dehumidification performance across the units' full operation range. Advanced dry mode provides dehumidification over a wide range of operating conditions with constant indoor fan speed. Super dry cooling mode requires the UC8 controller to vary the indoor fan speed for optimal dehumidification.

Intelligent De-ice

New intelligent de-ice enables improved heating performance in colder conditions. Optimized coil circuitry and new controller logic result in fast and more effective de-ice. Econex de-ice supports full turn down of the compressor and de-ices from the top to the bottom of full height coil circuits. This design prevents excess pressure drop as the refrigerant changes phase. The system allows for controlled capacity during de-ice, aims to melt ice rather than evaporate water (requiring less energy), and extends operation intervals between de-ice cycles.

Durable Long Life Design

Econex units are designed to be highly durable and suited to the harshest environmental conditions. Temperzone's proprietary Adaptive Valve Regulation system (AVR) ensures that Temperzone inverter air conditioning systems run more efficiently and enjoy a longer operational life. AVR maximizes efficiency in both heating and cooling cycles by regulating refrigerant flow capacity, allowing the system to maintain stability and efficiency over the full range of operating conditions. AVR also prevents prolonged flooding (oil washed out of the system), improves compressor life cycle, and prevents starving (HP/LP trips and reduced EER/Duty).

Key features of the durable design include:

• Epoxy coated coil protection for superior corrosion resistance.
• Marine grade pretreatment and polyester powder coated galvanised steel.
• Louvre Guards for added protection against severe weather, UV damage, and accidental contact.
• Sloped outdoor section for water drainage (except OPA 680).
• SKT coated screws for higher corrosion resistance than 316 stainless steel.
• Closed cell foam insulation to prevent particles in the air stream.
• Isolated compressor and electrical compartments for reduced noise and weatherproofing.
• Remove bungs to create positive pressure electrical compartment and clear dust.

Control Options & BMS Connectivity

Temperzone offers a range of control options, from advanced commercial controllers to stylish touch screen controllers, to suit your space and application. The TZT-100 thermostat is an advanced controller suited for commercial environments, delivering comprehensive control.

Econex Packaged units can connect into a Building Management System (BMS) for control and operation. Connectivity is achieved through the outdoor unit via the UC8's Modbus/RS485 port with multi-unit control capability. Daisy chain wiring saves on wiring and labor time, allowing up to 99 units to be connected on a common RS485 bus. BMS communication is via a 2-wire shielded cable with a maximum length of 1000m. Simplified BMS integration is available with Modbus or BACnet communication protocols.

Minimised Footprint

Unit footprints have been minimized to reduce associated installation costs and accommodate confined spaces. Econex footprint sizes have been reduced considerably, offering savings of 20% to 22% for the OPA 350 to 560, and 10% to 16% for the Econex 1410 and 2110 when compared to previous generation products.

Convenient Client Wiring Terminals

Wiring is made easy and convenient with new client wiring terminals. Installer electrical access has been improved with connections more easily accessed through customer terminals. Units are fully wired, and the main power supply along with communication connections can be wired directly within the terminal.

Easy Installation & Maintenance

Simplicity of design enables quick and easy installation. In-built functionalities ensure that after-sales operation and servicing is also a time-efficient process. Features include removable access covers, easy wiring terminal connections, socket outlets, generic mechanical and electrical parts, optional drain cups, access covers for indoor coil inspection, UC8 7-segment fault display, easy access hinged maintenance service doors, deep and wide indoor coil drain trays, unit mounting holes, and easy filter access.

Flexible Handling Options

Econex units offer flexible handing configurations as standard to suit site requirements. Standard units are supplied with left-hand supply air. Alternative configurations for supply air and return air openings are available. Tables detail the various configurations for supply air and return air openings, both with and without an economiser cycle.

Optional parts include filters, economy dampers, economy cycle control, and supply and return air handings.

Econex OPA Specifications

Detailed specifications are provided for the Econex OPA range, including cooling and heating capacities, compressor types, refrigerants, fans, airflow, noise data, power supply, controller details, and overall dimensions and weight for models ranging from OPA 250 to OPA 2110.

Contact Information

Temperzone provides contact details for sales and distributors across Australia, New Zealand, and Asia. Visit temperzone.com for more information.