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General| Cooling Options | Direct Expansion (DX) or chilled water |
|---|---|
| Heating Options | Hot Water, Steam, Electric |
| Configuration | Horizontal, Vertical |
| Casing Material | Galvanized Steel |
| Insulation | Foam |
| Coil Options | Chilled Water, Hot Water, Steam, DX |
| Fan Type | Plenum |
| Voltage Options | 208/230V, 460V, 575V |
| Refrigerant | R-410A |
| Cabinet Construction | Double Wall |
| Insulation Thickness | 2" |
Instructions for checking the unit for damage upon receipt after transit.
Lists various certifications for gas, steam, hot water, electric, and cooling models.
Outlines applicable local and national codes and standards for installation.
Provides critical operational guidelines and warnings for DX cooling units.
Explains operation of gas/electric heating and associated safety warnings.
Indicates the location of unit-specific wiring diagrams within the control compartment.
Details requirements for condensate drain piping, including trap installation.
Describes normal operating procedures for heating, cooling, air circulation, and system off modes.
Explains the operation of natural gas heating, including burner ignition and air supply.
Details how electric heating is accomplished using resistance heaters and blower operation.
Explains heating via steam or hot water coils and associated connections.
Describes the factory-assembled direct expansion refrigeration systems and their components.
Details the operation of chilled water or non-compressorized cooling units with factory-installed coils.
Provides instructions and diagrams for installing the unit on a roof curb.
Illustrates different types of duct and unit connections to the curb and structure.
Details the process of setting the roof curb, emphasizing level placement and opening sizes.
Guides on hoisting and positioning the unit onto the roof curb, ensuring proper alignment.
Specifies required clearances around the unit for service access and airflow.
Instructions for opening, sealing, and adjusting the outside air hood for proper operation.
Covers verifying voltage, routing wiring, and connecting power according to diagrams.
Notes on adjusting airflow after installation to meet temperature rise specifications.
Provides tables for selecting the correct gas pipe size based on unit tonnage and input.
Outlines requirements for supporting gas piping to prevent strain and ensure safety.
Lists gas pipe capacities in cubic feet per hour for various pipe sizes and lengths.
Explains the need for gas pressure regulators and over-pressure protection devices.
Details condensate drain connections, trapping, and maintenance for preventing issues.
Step-by-step guide for safely lighting the gas unit burner using the ignition device.
Procedure for safely shutting off gas to the appliance, especially for service.
Covers inspection of combustion/ventilating airflow, blower, coil, filters, and burners.
Discusses burner cleaning requirements and heat exchanger inspection for faulty operation.
Outlines inspection steps for cooling modes, including checking fans and compressors.
Details inspection for electric, steam, hot water, and natural gas heating systems.
Annual inspection checklist for various unit types including blower, coils, and filters.
Recommends lubricants and procedures for re-lubricating motor bearings.
Information on qualified service technicians and general unit interior cleaning.
Procedures for inspecting and cleaning evaporator/condenser coils and condensate drains.
Identifies common causes of reduced airflow such as dirty filters and obstructions.
Instructions for inspecting, replacing, and identifying filter sizes for optimal efficiency.
Lists common problems and potential causes for electric heating system failures.
Provides troubleshooting steps for gas heating system issues like no burner or no heat.
Lists potential causes for system off or no heat issues in steam/hot water heating.
Troubleshooting guide for cooling packages and units with remote condensers.
Lists common issues and causes for chilled water cooling system failures.
Information on obtaining replacement parts and referencing unit identification.
Describes the operational sequence for natural gas, LP gas, electric, and steam/hot water heating.
Details the operational sequence for packaged, DX, and chilled water cooling units.
Explains how the optional economizer controls cooling based on outside air conditions.
Describes the operation of Variable Air Volume (VAV) systems for cooling and heating.
Details different power exhaust options and their control sequences.
A flowchart guiding the diagnosis of compressor operational issues and potential causes.
A flowchart for troubleshooting ignition control system failures on gas heating units.
A checklist and form for recording unit start-up tests and parameters.
