NEC Express5800 Series User Manual

Also see for NEC Express5800 Series: User guide User guide User guide User guide Configuration guide

Contents

NEC Express5800 Series User Manual Manual pdf 126 page image

2. Installation and ConnectionExpress5800/R120h-1E User’s Guide126Chapter 2 PreparationsDo not install the rack or server under the following environment. Doing so may cause malfunction of the server. Narrow space from which devices cannot be pulled out from the rack completely Place that cannot bear the total weights of the rack and devices mounted on the rack Place where stabilizers cannot be installed or where the rack can be installed only after the practice ofproper earthquake-resistant construction Place of uneven or slanting floor Place of drastic temperature change (near a heater, air conditioner, or refrigerator) Place where intense vibration may be generated Place where corrosive gases (sulfur dioxide, hydrogen sulfide, nitrogen dioxide, chlorine, ammonia, ozone,etc) exist. Place where the air (or dust) includes components accelerating corrosion (ex. sulfur, sodiumchloride) or conductive metals Place where chemicals may be accidentally sprayed over Place where a carpet not subject to anti-static process is laid Place where some objects may be fallen on the rack Place near a device generating intense magnetic field (such as TVs, radios, broadcast/communicationantennas, power transmission wires, and electromagnetic cranes) is placed. Place where the power cord of the server must be connected to an AC outlet that shares the outlet ofanother device with large power consumption Place near equipment that generates power noise (e.g., contact spark at power-on/power-off of commercialpower supply through a relay). Environment where operation of the server is not guaranteedSpace and air flow requirements2.1.2For easier repairing and improvement of ventilation, follow the space requirements when you determine theinstall location of the rack. Make a clearance of 63.5 cm (25 in.) or more on the front side of the rack. Make a clearance of 76.2 cm (30 in.) or more on the back side of the rack. Make a clearance of 121.9 cm (48 in.) or more between the back side of the rack and the back side of theother racks or the rack row.In this server, the cold air is absorbed from the front door, and the hot air inside is discharged via the rear door.Therefore, make sure to leave an adequate clearance both on the front and rear rack doors for absorption ofoutside air into the cabinet. Also, make sure to leave an adequate clearance on the rear door for discharging hotair from the cabinet.Note To prevent improper cooling situations or damages to the equipment, do not blockthe ventilation openings.If a server or rack component is not installed on every shelf in the rack, the air flow through the rack or theserver will change because the shelf is empty. To maintain adequate ventilation, blank panels should becovered on all the shelves that do not have components installed.