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CeilAir DX Series User Manual

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Air Technology Systems, Inc.
CEILAiR
®
Air Technology Systems, Inc.
Ceiling Mounted
Full line of DX & CW Systems
Precision Air Conditioning
1 to 10 Tons
(60 Hz Data)
Engineering Manual

Table of Contents

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CeilAir DX Series Specifications

General IconGeneral
BrandCeilAir
ModelDX Series
CategoryAir Conditioner
LanguageEnglish

Summary

CeilAiR Systems

CeilAiR Systems Offer Outstanding Advantages

Details the key advantages of CeilAiR systems including flexibility, space saving design, and controls.

User Oriented Features & Options

Scroll Compressors

Explains the benefits of Scroll Compressor Technology for efficiency and reliability.

Year Round Operation

Describes features enabling continuous system operation in any environment globally.

Quiet Operation

Highlights features contributing to optimal quiet operation of the units.

Fast Delivery

Details stock unit availability and the 'Rapid-Fire' 5-day ship program.

Warranty

Outlines the standard and optional warranty periods for the systems.

Variety of Air Patterns

Illustrates available air patterns for different installation requirements.

Other Available Options

Lists various optional features that can be added to the units.

Selected Standard Features

Summarizes the standard features included with the CeilAiR ceiling AC systems.

Space Saving Configuration Choices

AIR COOLED SYSTEMS

Illustrates configuration choices for air-cooled systems, including self-contained and split units.

WATER COOLED SYSTEMS

Presents configuration options for self-contained water-cooled systems.

GLYCOL COOLED SYSTEMS

Shows configuration choices for self-contained glycol-cooled systems.

CHILLED WATER SYSTEMS

Details configuration options for chilled water systems.

Model Nomenclature

CeilAiR® - Ceiling Mounted A/C's

Explains the CeilAiR® nomenclature system for ceiling-mounted air conditioning units.

Guide Specifications

Quality Assurance

Details the ISO-9001:2001 registered quality control environment and commitment.

General Guide Specification

Provides a general overview of the system's design, manufacturing, and compliance.

Component Access

Describes the accessibility of unit components through removable side panels.

Cabinet Construction

Specifies the aluminum construction and insulation for corrosion protection and weight.

Electrical System

Outlines requirements for overcurrent protection, control circuits, and wiring standards.

Overflow Safety Float Switch

Details the function of a condensate pan water level switch for system shutdown.

Remote Stop / Start

Explains the provision of a terminal connection for remote unit operation control.

Coils

Describes the evaporator coil construction for uniform air distribution and heat transfer.

DX-Refrigeration System

Specifies the components and requirements of the DX refrigeration circuit.

Scroll Compressors

Details the high efficiency, reliability, and low sound of Scroll Compressors.

Chilled Water Systems

Covers the construction and control of chilled water coils and valves.

Blowers / Motors

Describes direct drive and belt-driven blower systems and motor specifications.

Temp & Humid Control

Outlines standard cooling-only configuration with optional heating/humidity controls.

Evaporator Air Patterns & Filtration

Details the design for ductless and ducted evaporators, including filter specifications.

DX - Heat Rejection

Refers to SATS Heat Rejection Engineering Manual for air-cooled condenser details.

Optional Features

Optional Features Index

Provides an index of optional features and their corresponding page numbers for reference.

Microprocessor Controls

Lists different levels of microprocessor control offerings for flexible system management.

Humidity Control Options

Details optional features for humidity control, including steam humidifiers and dehumidification modes.

High Static Pressure Blowers

Describes the optional upgrade for high static pressure belt-drive blowers.

High Efficiency Filtration (IAQ)

Covers optional IAQ high efficiency filters for improved air quality.

Head Pressure Control Options

Lists options for air-cooled and water/glycol-cooled head pressure control.

Free Cooling - Valve Combinations

Details various valve combinations available for free-cooling systems.

Capacity Modulation Options

Outlines options for modulating cooling capacity, such as hot gas bypass.

ACCESSORIES

Lists available accessories like power supply options and condensate pumps.

CeilAiR Control Options

Presents the five levels of microprocessor control for CeilAiR units.

Common A-Tech-1.1/1.2 Features

Lists common features for A-Tech 1.1 and 1.2 thermostats.

Standard Features

Details standard features of the C-Tech-10 controller's display and keypad.

Visual/Audible Alarm Indication

Describes how the C-Tech-10 controller indicates visual and audible alarms.

Maintenance Alarms

Explains maintenance alarms in the C-Tech-10 controller based on component run-times.

System Operation

Details system operation modes like fan control, auto-restart, and remote stop/start.

Remote Sensor Options

Covers optional remote sensors and their corresponding cable length options.

A-Tech-20

Describes the A-Tech-20 Advanced Microprocessor Controller's features and capabilities.

ALARM CONDITIONS

Lists alarm conditions that the A-Tech-20 controller can detect and alert on.

CyberLAN Networking Options

Explains CyberLAN networking for multi-unit sequencing and BMS communication.

Multi-Unit Sequencing

Details multi-unit sequencing capabilities for redundancy and backup applications.

Capacity Assist-Mode

Details the optional Capacity Assist-Mode for unit switchover in multi-unit systems.

CyberLAN w/ A-Tech 20 Remote Communications

Describes remote communications capabilities using CyberLAN with A-Tech 20.

REMOTE BMS CONNECTION

Outlines options for connecting to Building Management Systems via ModBus.

C6000

Details the C6000 Microprocessor Controller for temperature and humidity control.

Sensor Location Options

Specifies the standard factory unit-mounted sensor location for the C6000 controller.

System Setup & Adjustments

Explains the C6000 controller's preprogrammed nature and ease of adjustment.

Unit Status Display

Describes the C6000 keypad display for unit functions and room status.

Current Unit Status

Lists the current operational status indicators available on the C6000 display.

Run Times

Provides access to historical run-times for major components via the C6000 keypad.

Alarm Conditions

Details alarm conditions that trigger audible and visual indicators on the C6000.

Summary Alarm Contact

Describes the availability of a summary alarm dry-contact for remote annunciation.

Alarm History

Explains the C6000's ability to provide a recorded history of the last 80 alarms.

Control Inputs/Outputs

Highlights the C6000's capability for digital and analog device control.

Temperature Anticipation

Describes the C6000's self-adjusting logic for temperature control accuracy.

Diagnostic & Service Mode

Details the C6000's self-diagnostics algorithm for testing system functions.

Control Board

Explains the function of the Control Board in initiating system self-tests.

Input Diagnostics

Covers continuous monitoring of all system inputs and output devices for proper operation.

Night Set-back

Describes the C6000's energy-saving modes for occupied/non-occupied schedules.

Power Loss Restart

Explains the C6000's configuration for automatic or manual restart after power loss.

Security

Highlights security levels to prevent unauthorized adjustment of system parameters.

Sequential Load Activation

Details the C6000's time-delay sequence startup for minimizing in-rush current.

Recovery Delay

Explains the C6000's feature to delay alarms after power restoration for space pull-down.

Remote BMS Connection

Outlines BMS connection options for C6000, including MIB Gateways.

Electric Reheat/Heat

Details factory-mounted electric resistance heaters for reheating and heating modes.

Hot Gas Reheat

Describes the hot gas reheat coil and valve for energy-free sensible reheating.

Hot Water Reheat/Heat

Covers hot water reheat coils and 2-way control valves for automatic heating.

Steam Reheat/Heat

Details steam reheat coils and 2-way control valves for automatic heating.

SCR Fired Reheat/Heat

Explains SCR control for electric heat/reheat offering close temperature control.

High Static Pressure Belt-Drive Blowers

Describes the optional high static pressure belt-driven evaporator blower.

Filtration

Details available standard (F1) and optional (F2-F4) high-efficiency IAQ filters.

Head Pressure Control

Covers low ambient head pressure control options for air-cooled systems.

FREE-COOLING SYSTEMS

Describes the provision of a Free-Cooling cycle for compressor-less cooling.

DX - Capacity Modulation / Freeze-Protection

Details options like hot gas bypass for cooling capacity modulation.

Hot Gas Bypass

Covers full-floating hot gas bypass systems for capacity modulation and freeze protection.

DUAL COMPRESSOR SYSTEMS

Explains dual compressor systems with independent circuits for unloading and redundancy.

Chilled Water & AWS Control Valves

Lists standard and optional control valves for chilled water and AWS cooling.

ACCESSORIES

Lists various accessories such as 3-phase power supply and condensate pumps.

Dual Overflow Safety Switches

Describes dual overflow safety switches for condensate pump operation.

Factory Installed In-Pan Condensate Pump

Details the option for factory installation of an in-pan condensate pump.

Factory Installed - Optional Low-Profile Condensate Pump

Covers the optional low-profile condensate pump for limited ceiling plenum height.

Smoke Detector

Details the factory-installed photo-electric smoke detector for evaporator sections.

Firestat

Describes the factory-wired firestat to shut down the unit upon high return air temperature.

Remote Water Detectors

Covers optional remote spot type or strip/cable type water/leak detectors.

Compressor Sound Jackets

Describes acoustical sound jackets for compressors to reduce noise.

Energy Saving Cooling Options

Free-Cooling Option

Details the Free-Cooling cycle utilizing low ambient conditions for compressor-less cooling.

Alternate Water Source

Describes using building chilled water as primary cooling with DX as backup.

Performance Data

Performance Data Index

Provides an index of performance data tables for various unit configurations and conditions.

DX - Air Cooled

Presents performance data for DX air-cooled systems, including self-contained and split units.

DX - Water Cooled

Details performance data for DX water-cooled systems, covering various models and conditions.

DX - Glycol Cooled

Provides performance data for DX glycol-cooled systems, with specifications for different models.

Chilled Water

Lists performance data for chilled water air handlers across different tonnages and conditions.

DX with Free-Cooling

Presents performance data for DX systems incorporating free-cooling capabilities.

DX with Alternate Water Source

Details performance data for DX systems utilizing an alternate water source.

Electrical Data

CeilAiR Ceiling AC's FLA / MCA / MFS

Provides an index for electrical data related to FLA, MCA, and MFS for CeilAiR units.

DX - Compressorized Systems

Presents electrical data for DX compressorized systems, categorized by configuration.

DX - Air Handling Units

Details electrical data for DX air handling units, including single and dual circuit systems.

Free-Cooling & Alternate Water Source

Lists electrical data for systems incorporating free-cooling and alternate water sources.

Chilled Water Systems

Provides electrical data for chilled water systems.

Dimensional Data

Physical Data / Connection Sizes

Covers unit net weights and connection sizes for various system types.

Air Cooled Systems

Provides dimensional drawings for various Air Cooled system configurations.

DX - Air Handling Units

Shows dimensional data for DX Air Handling Units, including spot cooler and ducted versions.

Water / Glycol Cooled Systems

Presents dimensional data for Water/Glycol Cooled systems.

Chilled Water Systems

Details dimensional data for Chilled Water Systems, including spot cooler and ducted versions.