Vertiv VRC-S, Руководство пользователя

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2 Introduction
The Vertiv™ VRC-S product line is an IT rack-cooling solution equipped with a network-enabled rPDU and is designed for
critical equipment in small server rooms, network closets and edge computing spaces.
The Vertiv VRC-S is available in these series with either 120 V, 208 V, or 230 V:
• VRCS3350: 42U 800 x 1200
• VRCS3300: 42U 600 x 1200
• VRCS3307: 48U 600 x 1200
• VRCS3357: 48U 800 x 1200
The Vertiv VRC-S is based on the Vertiv™ VR rack. The cabinet is equipped with a Vertiv™ VRC 3.5 kW cooling unit, a
Vertiv™ Geist™ rPDU, optional with Liebert® GXT5™ UPS and sensors, as well as venting to convey heat from the cabinet
into an adjacent space or out of the area. SNMP and Modbus-RTU connectivity permit connection to a building
management system for remote monitoring. See
Specifications on page 41 for more information.
A backup fan on the rear door is actuated when the temperature at the top front of the cabinet exceeds 32°C (86°F). The fan
shuts off when the temperature sensor, installed at the top front of the cabinet, senses that the temperature has dropped
below 32°C (86°F).
2.1 Environmental Conditions
The Vertiv VRC-S must be installed and operated indoors, within a temperature range of 18°C-30°C (64.4°F-86°F),
condensing and less than 80% relative humidity (non-condensing).
Operating the Vertiv VRC-S in extreme environments may cause condensation inside the cabinet. The VRC-S is not
environmental neutral. The user is encouraged to try to correct this condition by these measures:
• Increasing the supply air operating temperature of the Vertiv™ VRC module. Refer to Operation on page 31 for
details.
• Reducing the relative humidity in the operating environment. This can be accomplished through passive
means by adding louvers to doors or walls for more ventilation; or by cooling the room through the building's
cooling system.
2.2 Integrated Rack Characteristics
The cabinet is a Vertiv™ VR rack designed to promote separation of cool supply air from the heat rejected by the IT loads
within the rack.
• solid, sheet-metal sides
• solid top and bottom panels
• air baffles to promote cooling air circulation
For the Vertiv™ VRC-S, the rack also has a factory-installed backup fan on the rear door. The backup fan is connected to the
Geist™ rPDU for backup power and network connectivity. A sensor at the front of the cabinet automatically senses any rise
in cabinet temperature and, in emergency situations, signals the fan to exhaust the warmer air from the rack. The backup fan
is actuated when the temperature at the top front of the rack exceeds 32°C (86°F). It switches Off when the temperature
drops below that threshold.
2 Introduction
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Vertiv™| VRC-S User Manual