APC AFX Series Specifications download pdf (Page 7)

Installation

Computer Room Preparation

During the design of the computer room,

consideration should be given to the following

factors: ease of entry, floor loading factors and

accessibility of piping and wiring.

The room must be sealed with a vapor barrier to

minimize moisture infiltration. Polyethylene film

(plastic sheeting) is a good vapor barrier for

ceiling and wall applications. Rubber or plastic-

based paints should be applied to concrete

floors and walls.

The room should be thoroughly insulated to

minimize thermal loads and make-up air should

be kept to a minimum to reduce additional

temperature, filtration and moisture loads.

A computer room using a raised floor plenum for

air distribution should have at least 12 inches of

clear space between the false floor and sub-floor

for air conditioners below 15 ton capacities. Pay

special attention to the location of pipe chases,

electrical conduits and other underfloor

obstructions. These objects can block air

circulation and increase air pressure drops thus

reducing system efficiency and causing possible

hot spots in your data processing room.

Minimum clear space for larger rooms should be

18 inches when air conditioners of 15 tons

capacity and larger are utilized.

Unit Location

Unit location is important for efficient and even

environmental control in your data center. The

air conditioners should be located as close to

the largest heat load as possible. Units should

be mounted along the longest walls (in rooms

having a high aspect ratio) to ensure even air

distribution. Erratic control or mechanical failure

can and will result if the unit does not obtain

proper air volume and distribution due to

improper installation

Service Access

At least 30 inches of clear space must be left in

front of the AFX Series unit and at least 24

inches on each side for access through the

panels and to facilitate service.

Receiving the Unit

Your AFX unit has been completely tested and

inspected prior to shipment from APC. To

ensure that you have received the unit in

excellent condition, perform a careful inspection

of the crating and the unit immediately upon

receipt. Verify that all parts ordered were

received as specified and that the unit is the

correct size and voltage necessary to fulfill your

environmental control needs. Report any

apparent or concealed damage discovered to

the freight carrier for insurance purposes. If

necessary, contact APC’s technical service

department for aid in repairing or replacing

damaged parts. While APC is not responsible for

exterior or interior damages incurred in transit,

we want to make sure that you have no undue

delays in your system start-up.

Rigging

The AFX air conditioner is manufactured with a

formed steel frame for maximum strength and

unit integrity. However, as with all

electrical/mechanical equipment, care must be

taken in proper rigging of your AFX unit. If you

uncrate the unit before moving it into place, we

suggest that the panels be removed to prevent

damage during handling.

When using a forklift to move the AFX unit, use

the shipping skid to protect the bottom of the

unit. When using chains, cable or rope to lift the

unit, use spreader bars to prevent damage to

the finished panels.

Every unit has sockets in the bottom corners

sized to accept casters with 7/8” stems (casters

are available from the factory, if desired).

Casters allow the unit to move through halls and

rooms where forklifts are not practical.

Unit Installation

DOWNFLOW DISCHARGE

If your data center has been designed to

incorporate a raised floor, the space between

the raised floor and subfloor may be used as an

air distribution plenum or a chase where ducting

to discharge grilles may be installed. Downflow

discharge units may be installed directly on the

raised floor after ensuring the floor loading

factory is satisfactory to support the unit.

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APC AFX Series Specifications Page 7

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