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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ

CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ
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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ

Product catalog summary
Introduction
Daikin Classroom Unit Ventilators are designed for educational settings, providing quiet, efficient, and reliable comfort. They are cost-effective in both installation and operation.
Nominal Performance
The units range from 2 to 4.5 tons, using R-410A refrigerant, and are optimized for airflow and cooling/heating performance.
Model AEQ Air Source Self-Contained Unit Ventilator
This model is suitable for new constructions and retrofits, featuring MicroTech II controls, advanced heat transfer coils, and a robust cabinet.
Features & Benefits
Daikin's GentleFlo system ensures quiet operation, precise temperature control, low costs, and easy maintenance. The modular design facilitates straightforward servicing.
Performance & Selection
Detailed procedures for selecting units based on cooling and heating requirements are provided.
Electrical Data
Includes wiring diagrams and details on power and control field wiring for easy integration with building systems.
Application Considerations
Emphasizes meeting indoor air quality requirements and preventing classroom overheating.
Guide Specifications
Provides detailed specifications for the Model AEQ unit, ensuring compliance with industry standards.
Economizer Operation
Facilitates economizer operation through an outdoor air damper for free cooling when conditions are suitable.
Part-Load Variable Air Control
Adjusts fan speed based on room load and temperature, enhancing efficiency and reducing noise.
Demand Control Ventilation (DCV)
Uses CO2 levels to adjust ventilation based on occupancy, improving energy efficiency.
Precise Temperature and Dehumidification Control
Offers precise control over temperature and humidity with MicroTech II controls and a two-stage compressor.
Low Installation and Operating Costs
Cost-effective for new constructions and retrofits, reducing mechanical cooling expenses.
MicroTech II Control Options
Reduces operating costs through economizer operation and DCV.
Easy Maintenance
Designed for easy maintenance with accessible components and modular fan decks.
Durability and Construction
Industrial-strength design ensures long-lasting performance with energy-efficient fan motors.
Motor Features and Protection
Includes thermal-overload protection and a built-in isolation system to reduce vibrations and noise.
Damper Design
Features durable dampers for positive sealing without metal-to-metal contact.
General Data and Nomenclature
Provides detailed nomenclature for product categories and specifications.
Model Types
AEQ model units include a heat pump refrigeration circuit and supplemental electric heat.
MicroTech II Controls
Offer superior performance and integration into building automation systems.
Economizer Modes
Describes three levels of economizer operation for utilizing outdoor air for cooling.
Demand Control Ventilation
Optional CO2 sensor adjusts outside air intake based on room occupancy.
Accessories
Details accessories such as end panels and wall sleeves with specifications and installation guidelines.
Overview
Provides technical specifications and details for the AEQ Self-Contained Unit Ventilator.
Accessories
Highlights the VentiMatic Shutter for room exhaust ventilation.
Physical Data
Provides specifications for different unit sizes, including fan data and shipping weight.
Dimensions
Includes detailed dimensions for various components.
Performance & Selection
Cooling and heating capacity tables are provided for different unit sizes and fan speeds.
Key Tables
Includes tables for fan data, wall louver dimensions, and capacity selection.
Overview
Provides a guide on determining heating and cooling loads and selecting appropriate unit sizes.
1. Determining Heating and Cooling Loads
Outlines the process of calculating design winter heating losses and summer cooling loads.
2. Air Quantity Requirements
Determines air quantity for heating based on room air volumes circulated per hour.
3. Unit Size Selection
Guidance on selecting unit capacities to match room heat gains and losses.
4. Freeze Protection
Recommends constant pump operation and antifreeze for protection.
5. Units with Antifreeze
Discusses the impact of glycol on heating capacities and pressure drops.
6. Cooling Selection Example
Provides a step-by-step example for determining design conditions and unit size selection.
Tables and Data
Includes tables for ventilation capacities and performance data.
Overview
Provides technical specifications and operational guidelines for the Daikin AEQ Self-Contained Unit Ventilator.
Specifications
Details cooling and heating capacities and energy efficiency ratios.
Electrical Data
Outlines electrical requirements for different unit sizes.
Wiring Diagrams
Includes diagrams for electrical connections and troubleshooting.
Control Modes
MicroTech II controls offer various operational modes for energy-efficient operation.
Key Recommendations
Ensure compliance with electrical codes and optimize control modes for energy efficiency.
Night Setback Mode
Adjusts the unit to a new room set point, cycling to maintain conditions.
Stand By Mode
Maintains the occupied mode set point temperature with the outdoor air damper closed.
Bypass Mode
Reverts the unit to Occupied Mode for a set time.
Economizer Modes
Utilizes the outdoor air damper for free cooling.
Night Purge Mode
Purges room space for one hour, opening the outdoor air damper fully.
Freeze Prevention Mode
Protects the unit from freezing conditions.
Emergency Heat Mode
Activates heating if room temperature falls below 55°F.
External Input Functions
Includes signals for various operational modes.
External Output Functions
Provides signals for lights, fault conditions, and auxiliary heat.
Advanced Control Options
Features Part Load Variable Air Control and Demand-Controlled Ventilation.
DX System Control
Manages compressor operation with protective features.
System Components
Includes the Unit Ventilator Controller and optional network modules.
Fan States and Operation
Describes four fan states available in unit ventilators.
MicroTech II Controls
Details sensor and component locations and optional features.
Actuators and Data Points
Explains the operation of damper actuators and data points.
Communication Modules
Optional modules for integration with building automation systems.
ServiceTools
Software for monitoring, configuration, and diagnosis of unit operations.
Application Considerations
Discusses challenges of overheating in classrooms and the need for cooling systems.
Overview
Discusses heating and cooling requirements for classrooms using Daikin Unit Ventilators.
Classroom Heating and Cooling
Highlights the need for cooling during school hours and provides examples of room heat loss.
Cooling Solutions
Recommends Daikin Unit Ventilator for both heating and cooling.
Indoor Air Quality (IAQ)
Emphasizes the importance of IAQ in schools.
ASHRAE Control Cycle II
Uses minimal outdoor air for heating and natural cooling.
Temperature Control Components
Includes key components for maintaining room temperatures.
Installation Considerations
Discusses components for effective operation and maintenance access.
Conclusion
Guidance on managing classroom temperatures using Daikin Unit Ventilators.
Application Considerations
Guidelines for installation and application of the AEQ Self-Contained Unit Ventilator.
Wall Penetrations and Lintels
Use lintels above wall louvers for proper construction.
Horizontal Splitters and Unit Recess Details
Install splitters to prevent water penetration and air leakage.
Interior Considerations
Ensure smooth and level interior wall surfaces to prevent air leakage.
Indoor Air Exhaust Considerations
Ensure a venting system can exhaust air equal to the amount introduced by the unit.
Wall Sleeve Arrangements
Seal wall sleeves and louvers to prevent air and water entry.
Guide Specifications
Specifications for the Model AEQ Air Source Heat Pump Self-Contained Unit Ventilator.
Condenser Fans and Motors
Features galvanized steel construction with energy-efficient motors.
Outdoor/Room Air Dampers
Includes separate room and outdoor air dampers with insulation and seals.
Drain Pan
Constructed from corrosion-resistant material.
Refrigeration System
Factory-sealed assembly with a hermetically sealed compressor.
Electric Coils (Optional)
Open wire type heating elements with safety features.
Filter
One-piece throwaway filter with options for extra sets.
Acoustical Features
Compressor is vibration isolated with sound-dampening materials.
VentiMatic Shutter
Provides in-room air relief to prevent static pressure build-up.
Temperature Controls
Factory-installed controls with microprocessor-based DDC.
Network System
Supports standalone or network operation with communication modules.
Room Temperature Sensor and Tenant Override Options
Factory-mounted sensors with tenant override capabilities.
Wall Sleeve and Intake Louver
Galvanized steel wall sleeve with electrical junction box.
Agency Listing
Units are UL listed for the US and Canada.
Training and Warranty
Training information available on the Daikin website with a Limited Product Warranty.
See more

Catalog excerpts

CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-1

Daikin Classroom Unit Ventilators Model AEQ Self-Contained Air Source Heat Pump Floor Units Size 024 (2 Ton) to 054 (4.5 Ton) R-410A Refrigerant, MicroTech II™ (“G” Vintage) People and ideas you can trust.™

 Open the catalog to page 1
CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-2

Daikin Classroom Unit Ventilators . . . . . . . . . . . . . . . 3 Quick Selection Procedure . . . . . . . . . . . . . . . . . . . . 29 The Model AEQ Air Source Self-Contained Unit Ventilator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Cooling Selection Example . . . . . . . . . . . . . . . . . . . 32 Size 024 (750 SCFM) – 1st Stage Medium Fan . . . 36 Size 024 (1000 SCFM) – 2nd Stage High Fan . . . . . 34 The Right Amount of Fresh Air and Cooling . . . . . . . . 7 Size 024 (650 SCFM) – 1st Stage Low Fan . . . . . . . 38 Precise Temperature and Dehumidification Control...

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-3

Daikin Classroom Unit Ventilators For nearly a century schools have relied on unit ventilators to keep classrooms comfortable. Students learn more readily in a quiet, well-ventilated environment. That is why Herman Nelson invented the unit ventilator in 1917. Daikin Applied continues to set the industry standard for performance, features and quality. Today Daikin remains committed to continuing the Herman Nelson-AAF-McQuay legacy as the industry leader and meeting the changing requirements of schools with the highest quality unit ventilator products available. We realize that keeping expenditures...

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-4

Nominal Performance Cooling Performance Model Unit Size Nominal Airflow Total Capacity Sensible Capacity Heating Performance Power Input Total Capacity Power Input Ventilation Rate Notes: Cooling Conditions: Indoor 80°F db/67°F wb (26.7°C/19.4°C) Outdoor; 95°F db/75°F wb (35°C/23.9°C) and high-speed fan. Heating Conditions: Indoor 70°F db/60°F wb (21.1°C/15.6°C) Outdoor; 47°F db/42°F wb (8.3°C/5.6°C) and high-speed fan. C CAT 1650-4 • AEQ SELF-CONTAINED UNIT VENTILATOR

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-5

The Model AEQ Air Source SelfContained Unit Ventilator Our model AEQ is a vertical, floor standing unit that utilizes refrigerant for cooling and heating. The Model AEQ is just right for new construction and for retrofit applications. Older buildings with baseboard radiant heat or other hydronic heating systems can be easily adapted to work efficiently with the model AEQ unit. The major features of this model are shown below and described in more detail on the following pages. 1 Welded One-Piece Chassis • offers superior strength, durability, and vibration reduction 2 Unique Draw-Thru Design...

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-6

Features & Benefits GentleFlo Delivery Daikin unit ventilators are engineered and manufactured to deliver quiet, continuous comfort. We developed our GentleFlo™ air moving system to minimize operating sound levels – even as demands for more fresh air require units to operate longer and work harder. GentleFlo features include: • Fan wheels are large, wide and rotate at a low speed to reduce fan sound levels. They are impactresistant and carefully balanced to provide consistent performance. • Offset, aerodynamic fan wheel blades move air efficiently (Figure 1). • Precision tolerances help reduce...

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-7

Features & Benefits The Right Amount of Fresh Air and Cooling Daikin unit ventilators deliver required amounts of fresh air to meet ventilation requirements and added cooling capacity to maintain consistent comfort for students and teachers. Our Economizer Operation, Demand Control Ventilation (DCV) and Part Load, Variable Air options allow you to match classroom comfort requirements even more closely, and reduce operating costs. This means that you can be confident that your school is meeting ventilation standards for Indoor Air Quality and that your students are receiving adequate air to be...

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-8

Features & Benefits Draw-Thru Design For Even Discharge Temperatures The Daikin Draw-Thru design sets our unit ventilators apart from most competitive models. With this system, fans draw air through the entire heat transfer element (Figure 4) rather than blowing it through highly concentrated areas of the coil element. The result is more uniform discharge air temperatures into the classroom and more efficient unit ventilator operation. Figure 4: Draw-Thru Design Provides Even Discharge Air Uniform Discharge Air (Shaded) Motor Fans Coil Daikin unit ventilators have many features that make them...

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-9

Features & Benefits Figure 6: Energy Savings with Demand Control Ventilation 100% Energy Savings with DCV Consider these realities of school environments: • Most heating energy in schools is expended to heat unoccupied spaces. Because lights, computers and students give off considerable heat, occupied spaces require little supplemental heat. • The removal of heat is usually required in occupied classrooms, even when outside temperatures are moderately cold (i.e., 35 to 40°F). • Then consider how Daikin unit ventilators, located in each classroom, take advantage of these realities to lower operating...

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-10

Features & Benefits Heavy-Duty Discharge Grille Daikin Unit Ventilators are designed to provide easy access for maintenance and service personnel to all serviceable components. Most maintenance tasks are easily handled by a single person. The entire fan deck is easily removed as a single unit. This provides ready access to fan wheels, motors, bearings and other components for service, cleaning or repair. The fan deck’s rotating element has one large, selfaligning, oilable end bearing and a permanently lubricated motor bearing for smooth operation. On most sizes the location of the fan shaft bearing...

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CAT 1650-4 Daikin Self-Contained Air Source Heat Pump Unit Ventilators - Model AEQ-11

Features & Benefits Tamper-Resistant Fasteners Sectionalized Access Panels and Doors • Units come standard with a single-use filter which is designed to be used once and discarded. • Optional, permanent metal filters are available and can be removed for cleaning and reused numerous times. • Renewable media filters, which consist of a heavyduty, painted-metal structural frame and renewable media. Front panels and top access doors are held in place by tamper-resistant, positive-positioning fasteners. They are quickly removed or opened with the proper tool, but deter unauthorized access to the unit’s...

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