Modbus Installation and Troubleshooting for Galaxy VM This application note explains how to install the Modbus wiring for a Galaxy VM UPS, gives an overview of the Modbus protocol, how to configure and test the connection, describes the Modbus packet structure, and explains how to identify and resolve common problems.
Understanding Delta Conversion Online "Battery Charging" - Part 5 This application note is the fifth in a series that discusses many common misunderstandings about Delta Conversion OnlineTM and also it’s advantages. The subjects of delta conversion, delta transformers, and delta inverter are addressed. Various myths are described and criticized.
Selection Process for Dew Point Control Pump (ACRC301H) The Dew Point Control Pump [DPCP] is a condensate management device used in the InRow RC High Temp cooling unit. It serves as an alternative to the traditional condensate pump and tray system. Rather than removing the condensate the Dew Point Control Pump prevents the condensate from formation altogether.
Active Flow Control Theory and Application The Active Flow Controller is a deta-P (pressure) controller that can be paired with an aisle containment system. The controller works by sensing pressure inside the aisle to adjust cooling unit fan speed. This prevents forced-mixing of hot and cold air.
Electrolyte Quantities in InfraStruxure UPSs This document gives the specifications for how much electrolyte is in the valve-regulated lead-acid (VRLA) modular battery cartridges of InfraStruxure UPSs for small, medium, and large data centers.
Pump Selection for InRow Glycol-Cooled Unit System ACRD20X While pump packages are not directly supported from APC, a minimal design effort is required for the installer to select the necessary components to design and build the pump package for the condenser water / glycol mixture loop. This application note provides the installing contractor with necessary information regarding part selection and design for pump package needed for operation of the water / glycol mixture loop.
Smart-UPS configuration application note Smart-UPS and Smart-UPS XL behavior can be flexibly adjusted to the actual operating condition through an extended set of user-configurable parameters. Proper parameter setting highly enhances the UPS performance thus considerably increasing reliability and availability of the power protection as a whole. This application note is intended for Smart-UPS and Smart-UPS XL users. The purpose of this note is to help Smart-UPS and Smart-UPS XL users further enhance the quality of power protection by providing a detailed discussion on how to properly adjust Smart-UPS behavior in order for it to deliver the best performance in the particular conditions.
Understanding Delta Conversion On-line "Power Regulation" - Part 2 This application note is the second in a series that discusses many common misunderstandings about Delta Conversion OnlineTM and also it’s advantages. The subjects of delta conversion, delta transformers, and delta inverter are addressed. Various myths are described and criticized.
Understanding Delta Conversion Online "Power Balance" - Part 4 This application note is the fourth in a series that discusses many common misunderstandings about Delta Conversion OnlineTM and also it’s advantages. The subjects of delta conversion, delta transformers, and delta inverter are addressed. Various myths are described and criticized.
TUV – Rheinland NRTL Certification This paper describes use of the TUV-Rheinland NRTL mark in lieu of the UL and C-UL (or CSA) marks for the North American Market (NAM). This paper is limited in scope and should be considered an adjunct to APC Application Note #30, "InfraStruXure Agency Listings".
ACRP Remote Air-Cooled Condenser Application and Placement The InfraStruXure InRow RP (ACRP100, ACRP101, and ACRP102) is an air-cooled DX air conditioner for data centers. All air-cooled air conditioners require the use of remote air-cooled condensers. This application note outlines the placement, refrigerant line pipe sizing, and maintenance of air-cooled condensers for the ACRP100 series units.
InRow RC Environmental Control The function of the InRow RC product is to cool air from the hot aisle and deliver it to the cold aisle at the temperature setpoint. The InRow RC controls the environment with a cooling function only. This document describes the control process for the InRow RC. In order to provide environmental control, the InRow RC unit monitors the temperature of the return air, temperature of the supply air, and a remote rack inlet temperature
Practices for Pressure Relief Valve Discharge Piping Many mechanical refrigeration systems containing large quantities of refrigerant possess pressure relief devices. Under certain conditions, these systems are piped to the outdoors to prevent the displacement of air inside a structure. This paper is intended to give a list of best practices for sizing the piping from the discharge of a pressure relief valve to the outside.
InRow RC Cooling of HP C-Class Chassis High performance blade chassis such as the HP c-Class are alleged to be highly problematic regarding thermal solutions within traditional Data Center spaces. APC has developed in row cooling products, such as the InRow RC, to specifically address such challenges.
Modular PDU Slot Locks This application note explains the purpose of Schneider Electric Modular PDU slot locks and Schneider Electric service policy for electrical work. It also describes the importance of understanding site-specific arc flash risk when interacting with electrical equipment. The Modular Power Distribution product family includes Modular Power Distribution Units (Modular PDUs), Modular Remote Power Panels (Modular RPPs), Modular Rack Distribution Panels (Modular RDPs), and modular power distribution solutions embedded in or designed exclusively for Symmetra PX UPSs.
Hydrogen Gassing: Symmetra, SmartUPS VT This document identifies the worst case gassing rates for the various valve-regulated lead-acid (VRLA) modular battery units of SmartUPS VT, Symmetra LX, and Symmetra PX UPSs, and explains code requirements for providing battery gassing data.
Modbus Implementation in APC Smart-UPS This App Note explains how Modbus protocol has been implemented in the Smart-UPS SMT family to provide access to controls and configuration parameters through user-defined applications.
PowerChute Network Shutdown for VMware This Application Note outlines how to deploy PowerChute Network Shutdown in different VMware setups to protect your virtual as well as your physical IT infrastructure.
Understanding Delta Conversion Online "The Difference" - Part 1 This application note is the first in a series that discusses many common misunderstandings about Delta Conversion OnlineTM and also it’s advantages. The subjects of delta conversion, delta transformers, and delta inverter are addressed. Various myths are described and criticized.
Using MCA and MOP Ratings to Safely Connect Your Field Wired Air Conditioner The minimum circuit ampacity (MCA) and maximum overcurrent protection (MOP) ratings provide guidance for safely connecting field-wired equipment to the building mains in North America. Understanding these ratings, and their relationship to each other, is critical to properly selecting wire and circuit breaker sizes.
Cable Trough, Ladder, and Partition Configuration Guide Management of power and data cabling is critical for data center installation and long-term maintenance. APC has developed a line of products designed to contain and manage this array of cabling and piping. These products include cable troughs, ladders, and partitions. The following Application Note contains guidelines on positioning these products within a data center, determining cable capacity/fill of each product, planning for location of different services (power, data, cooling) within the data center, and installing these products.
Proper UPS selection for servers with active PFC power supplies This document explains why some Back-UPS or Smart-UPS SC models may not be the proper choice for servers and other equipment that use large PFC (power factor corrected) power supplies and/or contain redundant supplies. Active PFC power supplies have become more common on name brand servers to comply with more stringent guidelines for energy consumption. It provides guidance for selecting and properly sizing models that are more suitable for the demands of these applications.
Configuring Data Centers to Support HP BladeSystem p-Class Servers HP BladeSystem p-Class servers operate at a power density 10X higher than that of a typical data center, which demands special attention to the power and cooling system. Success in deploying these servers – there are five basic strategies – requires an understanding of several inputs, including the business needs driving the deployment, user preferences, blade requirements, and constraints. This Application Note considers these inputs, and guides the reader to (1)select the best deployment method from the five basic methods, (2) choose the appropriate rack, cooling, power, and management solutions, and (3) apply these solutions to fit individual needs.
APC Symmetra® PX 80K UPS Frame Installation Deviation and Selection of Input Circuit Breaker Ratings The APC Symmetra® PX scalable UPS frames provide customers with unique UPS power level scalability. This document gives the specifications for permitted input circuit breaker sizes for use with the APC Symmetra PX 80K scalable UPS frame and a 208Y/120V, 60 Hz utility source. This Applications Note is applicable to only the following APC SKU’s: SY10K80F, SY20K80F, SY30K80F, SY40K80F, SY50K80F, SY60K80F, SY70K80F, and SY80K80F when configured as either standalone systems or with the InfraStruXure® PDU 40kW 208V/208V W/ MBP w/o transformer PDRPPNX14-M. This Applications Note does not apply to any configuration that includes the following APC InfraStruXure® PDU w/MBP SKU’s which include an input isolation transformer: PD80F6FK1-M or PD80G6FK1-M or PD80L6FK1-M.
APC Symmetra® PX 40K UPS Frame Installation Deviation and Selection of Input Circuit Breaker Ratings The APC Symmetra® PX scalable UPS frames provide customers with unique UPS power level scalability. This document gives the specifications for permitted input circuit breaker sizes for use with the APC Symmetra PX 40K scalable UPS frame and a 208Y/120V, 60 Hz utility source. This Applications Note is applicable to only the following APC SKU’s: SY10K40F , SY20K40F, SY30K40F, SY40K40F, when configured as either standalone systems or with the InfraStruXure® PDU 40kW 208V/208V W/ MBPwD w/o transformer - PDRPPNX10-M. This Applications Note does not apply to any configuration that includes the following APC InfraStruXure® PDU w/ MBPwD SKU’s which include input isolation transformers: PD40F6FK1-M or PD40G6FK1-M or PD40L6FK1-M
Best Practices for Deploying Smart-UPS, Smart-UPS On-Line, and Symmetra The Smart-UPS, Smart-UPS On-Line, and Symmetra uninterruptible power supplies (UPS) protect hardware, software and data from power disturbances throughout the world. Designed to prevent blackout, brownouts, surges and sags from reaching your IT devices and other valuable electronic equipment, Smart-UPS, Smart-UPS On-Line and Symmetra provide continuous power from its internal battery until the utility line is restored to a safe level. This application note covers best practices for deploying a Smart-UPS, Smart-UPS On-Line or Symmetra as well as environmental constraints.
RDX Remote Fluid Cooled Condenser InRow DX 600mm The InRow DX 600mm Series of InRow DX cooling products has been designed for use with remote air-cooled condensers, and is supported by a variety of condenser selections from APC. The available condenser selection meets world wide ambient temperature and power supply considerations. While liquid cooled condensers are not directly supported as a factory option, it is a minimal design effort for the installer to select and install an appropriate liquid cooled condenser along with the necessary accessory items. The installation of such a condenser will allow the use of either water or a water / glycol mixture for the heat of rejection medium.
Best Practices for Designing Data Centers with the InRow RC The InfraStruXure® InRow RC is designed to provide cooling at the row and rack level of a data center for rack based IT equipment with front to back airflow. When designing data centers with this product, there are some best practices that should be followed to ensure the InRow RC is cooling as designed. This paper presents the best practices that should be followed when designing a data center with the InRow RC, and provides some additional guidelines to follow when some of these best practices can not be adopted as part of the data center layout.
Guidelines for Using Rack Air Containment System with InfraStruXure InRow SC The InfraStruXure® InRow™ SC (ACSC100 and ACSC101) is a self-contained air conditioner for server rooms and wiring closets. This application note provides guidelines for using the Rack Air Containment System (RACS) with these units. Additional information regarding RACS with InRow units can be found in Application Note AN-90.
Configuring Data Centers to Support IBM BladeCenter Servers The IBM BladeCenter operates at a power density 10X greater than the capability of a typical data center, which demands special attention to the power and cooling system. Success in deploying these servers – there are five basic strategies – requires an understanding of several inputs, including the business needs driving the deployment, user preferences, blade requirements, and constraints. This Application Note considers these inputs, and guides the reader to (1) select the best deployment method from the five basic methods, (2) choose the appropriate rack, cooling, power, and management solutions, and (3) apply these solutions to fit individual needs.
Ventilation and Cooling Requirements for the Symmetra PX UPS Data centers requires proper ventilation to remove the heat generated by its equipment and provide sufficient air quality. The Symmetra PX UPS supports up to 40kW of equipment. This large amount of power supported and its ventilation requirements are sufficient to remove the heat generated by the UPS, keep the batteries at their ideal temperature, and remove any hydrogen generated. Data centers are an excellent location for Symmetra PX UPS solutions.
UPS Power for the InfraStruXure InRow SC The InfraStruXure® InRow™ SC (ACSC100 and ACSC101) is a self-contained air conditioner for server rooms and wiring closets. This application note outlines considerations for powering the unit from a UPS.
APC Network Management Card Security Implementation This document highlights the industry-standard security implementation on the Network Management Card from Schneider Electric and should be used as a high-level overview of the Network Management Card functionality
Using Sealevel Systems Equipment with APC NetBotz Appliances Sealevel Systems provides innovative hardware products that can enable additional connectivity and control of I/O devices that they are interfaced with. Using the manageability and flexibility of NetBotz products, a wide array of I/O devices can be managed, monitored, and controlled. Through the combination of these two elements, a robust and flexible, managed network of I/O devices emerges. This document provides the information necessary to create an environment using the Sealevel and NetBotz equipment.
Rack Air Distribution Unit Detailed description how to apply the various uses of the Rack Air Distribution Unit into a datacenter or IT space.
The APC Computer Interface Port This application note provides technical information regarding APC UPS computer interface ports. This information is for customers attempting to use the port for unsupported purposes.
Rack Air Containment Application Guidelines and Approved Configurations The Rack Air Containment System (RACS) is a modular front and rear plenum for use in isolating the supply and return air between an APC Netshelter SX rack enclosure and an APC InRow™ cooling solution. The containment system is designed to create a separate environment for air distribution in order to prevent mixing of hot and cold air streams, resulting in a more predictable cooling pattern. The modular design and ability to retrofit to an existing Netshelter SX rack enables medium to high density racks to be cooled in an autonomous environment without overcooling the room mixed with lower density loads.
Distributed Generator System Synchronization Distributed Generator Synchronization can be utilized when using a Delta Conversion UPS in a distributed-redundant UPS design. The scope of this paper is to cover generator synchronization in a distributed generation system for critical power applications. Distributed generation is commonly used with distributed redundant Uninterruptible Power Supply (UPS) designs. Generator synchronization can be used in this UPS system design to achieve up-stream synchronization to improve availability with Delta Conversion Technology UPS systems.
Hot Aisle Containment Application Guidelines and Approved Configurations The Hot Aisle Containment System (HACS) is a modular ceiling panel and door system for use in isolating the supply and return air between an APC NetShelter rack and an APC InRow® cooling solution. The containment system is designed to create a separate environment for air distribution in order to prevent mixing of hot and cold air streams, resulting in a more predictable cooling pattern. The modular design and ability to retrofit to an existing Netshelter rack enables medium to high density racks to be cooled in an autonomous environment without overcooling the room.
NetBotz Building Management System (BMS) Integration The Modbus protocol is a standard in the industry and is supported by almost all of the BMS vendors. APC integrates Modbus TCP over an Ethernet connection and Modbus RTU/ASCII over a serial connection for NetBotz® communication with a BMS (e.g. T.A.C Continuum™ and Vista™, Johnson Controls’ Metasys™, Siemens’ APOGEE™, ALC’s WebCTRL™, etc.). This paper explains the integration of the APC NetBotz® appliance v3.2 release with a Building Management System.
Hot Aisle Containment System (HACS) and Data Center Fire Protection The design of data centers around Hot Aisle Containment Systems (HACS) is growing in popularity. Engineers and, increasingly, Authorities Having Jurisdiction (AHJ) are questioning the need for fire protection in the hot aisle; specifically: incipient stage fire detection (high sensitivity smoke detection), smoke detection, fire suppression, sprinkler protection. This application note describes fire protection strategies for hot aisle containment systems. It is intended to clarify questions regarding detection and suppression requirements as applied to asset protection as well as address misconceptions within the HACS space.