Topic guide
Browse references on airflow management, aisle arrangements and rack inlet conditions. Investigate cooling distribution and air mixing alongside the measurement methods and modelling assumptions reported by each source.
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The Green Grid 2011
In a cooling option matrix, present architectures (room CRAH, in-row, rear-door, chilled-water versus DX, economised) with qualitative pros and cons.
The Green Grid 2015
In the airflow advisor, estimate fan and chiller savings from containment and blanking (bypass and recirculation reduction).
The Green Grid 2016
In airflow/CFD results, report thermal conformance (share of IT inlets within the recommended range) alongside PUE.
ASHRAE 2023
Evaluate all applicable inlet conditions (temperature, moisture, dew point, altitude) together.
European Commission JRC 2025
Design the facility to operate within the ASHRAE Class A2 allowable range and require A2 operation within warranty in IT procurement; plan separate environmental zones (practice 5.3.4) for legacy equipment.
U.S. DOE FEMP / NREL 2024
Weigh the supply air setpoint against server fan energy: raise it in small steps within the ASHRAE recommended range so the most demanding inlet nears 80 °F, only after air management is in place, and control to IT inlet temperature rather than return temperature.
Schneider Electric 2012
Drive the cooling-architecture recommender: for a new build with IT load above 200 kW, default to room cooling + hot-aisle containment
Open Compute Project Foundation 2020
Check the delivery route against rack height plus 0.5 m, door and corridor widths, and the lift capacity, before agreeing to host or design for Open Racks.
Lawrence Berkeley National Laboratory 2014
Borrow the metric set (PUE, intake temperature and humidity, RTI, cooling efficiency, airflow efficiency, distribution efficiency) as the minimum list of measurements a monitoring design must support.
Lawrence Berkeley National Laboratory (Center of Expertise for Energy Efficiency in Data Centers) / U.S. DOE FEMP 2020
Compare the planned UPS module count and redundancy scheme against the load curve: check the per-unit load at day-one and at full build, and consider modular units or switching off surplus modules.
Lawrence Berkeley National Laboratory / ANCIS Incorporated 2023
Calculate required sensible airflow from heat load with a stated temperature rise, air density and specific heat.
ASHRAE TC 9.9 2021
Add class H1 and the W17/W27/W32/W40/W45/W+ facility-water classes to the thermal catalog as enumerations.
Equinix 2022
Default the cooling module's supply-air setpoint for colo profiles to 27 degC (upper end of the ASHRAE recommended 18-27 degC), with a sensitivity chart of PUE and economizer hours versus setpoint (e.g. 22 to 27 degC).
ASHRAE TC 9.9 2009
If an air-side economiser meets an urban or industrial site, prompt for corrosion coupon monitoring (G1 target) and MERV 11/13 makeup-air filtration.
Schneider Electric 2014
Make the primary density inputs per rack: avgRackKw and peakRackKw per row or zone, default peak/avg 2
Lawrence Berkeley National Laboratory 2017
Write the humidity strategy around room dew point: set a wide dead band (about 16 °F to 59 °F dew point unless the IT owner agrees a higher lower limit) rather than a narrow RH band.
Schneider Electric 2010
Add a hot-aisle work-environment check
Schneider Electric 2017
Default to hot-aisle containment for new designs; if containment is deferred, reserve the provisions and space for a future HACS.
Open Compute Project Foundation 2026
Base floor and transport-route load checks on the 8,000 lb rack and the 15,000 lb rack-plus-sidecar combination, and include the weight of the moving equipment.
Legrand (Server Technology) 2024
Add busway entries with 40-1,250 A ampacity and tap-off ratings to the electrical catalog; define rack PDU entries at 16-100 A and 208/415/480 V.
ASHRAE TC 9.9 2015
In the zone model, define a thermal class per zone instead of one room setpoint (for example tape room A1/narrow, compute A2/A3).
Schneider Electric 2012
Use the 13 methods to seed the cooling-plant catalogue enum (dx_air, dx_glycol, dx_water, chw_crah, pumped_refrigerant, self_contained, rooftop, direct_fresh_air_evap, indirect_air_economizer)
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