APC CM Series User Manual download pdf (Page 70)

APC NetworkAIR CM Series: Guidelines for Installation 65

Guidelines for Installation

The CM series provides reliable, accurate temperature and humidity control

of computer rooms, laboratories, and other environments that require close

tolerance control. The unit incorporates the latest system design innovations

to provide you with optimum efficiency, reliability, and accuracy of control.

The CM system will provide years of trouble-free service, if it is installed and

maintained by technically qualified personnel.

Room preparation During the design of the room, consideration should be given to the

following factors: ease of entry for the system and accessibility of piping and

wiring.

The room must be sealed with a vapor barrier to minimize migration of

moisture. 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 (if required) should be

preconditioned to reduce additional temperature, filtration, and moisture

loads.

APC should be notified before installation if the unit is incorrect for the

application.

Unit location The location of the unit is important for efficient and balanced environmental

control in your room. The air conditioner should be located as close as

possible to the largest heat load. If improperly installed, erratic control or

mechanical failure can and will result if the unit does not obtain proper air

volume and distribution.

Service access At least 24" (610 mm) of clear space must be left in front of the unit for

routine service (belts, filters, humidifier). We strongly recommend

approximately 34" (860 mm) clearance in front of the unit.

Receiving the unit Your CM unit has been completely tested and inspected prior to shipment. 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 damage discovered to the freight carrier. If necessary,

contact the APC field service department for help in repairing or replacing

damaged parts. While APC is not responsible for damage incurred in transit,

we want to make sure that you have no undue delays in your system start-up.

Rigging The unit is manufactured with a formed steel frame for maximum strength

and unit integrity. However, as with all electrical and mechanical equipment,

you must take care with proper rigging of your unit.

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APC CM Series User Manual Page 70