Generic Site Preparation Guide - Edition 6

1 The maximum elevation for all operating environmental classes is 3,050 m (10,007 ft).
2 Dry bulb temperature is the regular ambient temperature. Derate maximum dry bulb temperature 1 ºC/300 m (34
ºF/984 ft) above 900 m (2,953 ft).
3 Must be noncondensing environment.
4 Controlled computer room environment is comparable to ASHRAE Class 1 and IEC 60721 Class 3K1.
5 Local product groups must make business decisions for the appropriate values.
With installed media, the minimum temperature is 10 °C (50 °F) and maximum relative humidity
is limited to 80%. Specific media requirements may vary.
Include the possible addition of equipment or other changes in space requirements to the space
plan and create an equipment layout plan which contains provisions for the following:
Channels or fixtures used for routing data cables and power cables
Access to air-conditioning ducts, filters, lighting, and electrical power hardware
Power conditioning equipment
Cabinets for cleaning materials
Maintenance area and spare parts
Storage and Powered Off
See Table 1-6 (page 28) for storage and powered off conditions. The information described in
the following table provides typical temperature and relative humidity ranges for HP equipment
that are subjected to the following environmental conditions:
Removed from the original shipping container and installed in the typical environment
In transit shipment or in storage (in shipping material or container)
See Table 1-5 (page 27) for the environmental values to operating equipment.
Table 1-6 Typical Range of Product Power-Off Storage and Shipping Environments
Powered-Off (installed)Storage
Type of
Product
Dew Point
(max)
Relative
Humidity %:
Noncondensing
Temp
°C, dry bulb
[regular
ambient
temp.]
(°F)
Dew Point
(max)
Relative
Humidity %:
Noncondensing
Temp
°C, dry bulb
[regular
ambient
temp.]
(°F)
2910 to 905 to 45
(41 to 113)
3210 to 90–40 to 80
(–40 to 176)
All Classes
See the contract or industry requirements.Special (or
Contract)
NOTE: The values shown in Table 1-6 (page 28) meet or exceed all ASHRAE specifications.
Floor Plan Grid
Use a floor plan grid designing the location of equipment in the computer room. Also use the
floor plan grid when arranging the locations of the following items:
Air-conditioning vents
Lighting fixtures
Utility outlets
Access areas for power wiring and air-conditioning filters
28 General Site Preparation Guidelines