Technical data

Application Guidelines
3 APC InRow SC Technical Data Manual
Application Guidelines
Self-Contained System
The InfraStruXure InRow SC self-contained unit is designed to be placed in-row, between equipment racks for cool-
ing-only applications. The unit has a nominal cooling capacity of 5kW and is intended to provide dedicated cooling
for wiring closets, server rooms and small data centers that have a drop ceiling as part of the building return plenum.
The unit is designed for very high sensible heat ratio cooling.
In order for the unit to operate properly, the following mechanical requirements must be met on a 24x7 basis:
• Provide at least 850 CFM (1440 m
3
/hr) of airflow to and from the condenser of each unit deployed
• Condenser inlet air temperatures must be between 32-105
o
F (0-40
o
C)
• Heat rejected by condenser, up to 10kW per unit, must be treated by the building cooling system
• Provide condensate drain connection
• Provide adequate clearances for airflow, maintenance service
The InRow SC is compatible with the Rack Air Containment System (RACS) and can be used to isolate the heat load
from individual racks. When combined with front and rear containment, the nominal cooling capacity is up to 7kW
for the 60 Hz unit (and up to 6.3kW for 50 Hz unit). Minimum load requirements must also be observed to prevent
the compressor from cycling off. If the compressor cycles off, there is a minimum off time period of 2-minutes where
no cooling is provided and the desired rack inlet temperatures may be exceeded. RACS is not designed to protect the
SC unit or IT equipment from harsh, corrosive or dirty environments.
• Minimum recommended heat load is 3kW per SC unit, depending on room conditions
• Configurations include rear containment only or front and rear containment
Further Reading
For additional guidance regarding the InRow SC refer to the following application notes and white papers:
• AN-90 Rack Air Containment Configurations for InRow Cooling Units
• AN-109 Application Guidelines for the InfraStruXure InRow SC Condenser
• AN-112 Best Practices for Deploying the InfraStruXure InRow SC
• AN-113 Configuration Types and Sequence of Operations for the InfraStruXure InRow SC
• AN-114 Guidelines for Using Rack Air Containment System with InfraStruXure InRow SC
• AN-115 UPS Power for the InfraStruXure InRow SC
• WP-68 Cooling Strategies for IT Wiring Closets and Small Rooms
• WP-130 The Advantages of Row and Rack-Oriented Cooling Architectures for Data Centers