HP Modular Cooling System - Manual (Page 52)

Frequently asked questions 52
Frequently asked questions
MCS-100 frequently asked questions
Question Answer
What cooling capacity ranges are
available in the MCS-100 unit? The cooling capacity of the heat exchanger unit depends on the water
supply temperature and the server inlet set point. The MCS-100 unit is
capable of cooling rack-mounted components consuming up to 30 kW
of electrical power.
Is special IT equipment required for
use with the MCS-100 unit?
No, all IT equipment that uses the front-to-back cooling system (99% of
IT equipment) can be used without restriction in conjunction with the v
unit.
Does the additional heat from the
MCS-100 unit increase the room
temperature?
In some cases, up to 10% of the total power supplied to the rack may
be lost to the room, depending on the server air setting and the room
temperature.
Can the level of heat removal be
regulated in proportion to the waste
heat generated?
Yes, the control system automatically adjusts the water flow and air
flow to remove heat generated in the rack.
How is water connected to the
MCS-100 unit?
The water is connected to the unit using a 1.25-inch flexible hose and
quick-disconnect automatic shutoff hose fittings. For more information,
see the HP Modular Cooling System Hook-Up Kit Installation
Instructions.
Can the MCS-100 unit operate with
the front or rear door open?
Yes, due to the air curtain effect, the air will function normally with little
air lost. When the doors are open during operation, room air mixes
with air supplied to the servers.
Does the MCS-100 unit require
maintenance?
No, assuming that the water quality is maintained, the MCS-100 unit
is maintenance-free. For more information about water quality, see the
HP Modular Cooling System 200/100 Site Preparation Guide on the
HP website.
Is a false floor necessary? No, a false floor is not necessary to operate the MCS-100 unit. For
more information, see the HP Modular Cooling System 200/100 Site
Preparation Guide on the HP website.
Does condensation form?
During normal operation some condensation may form, but the
MCS-100 unit condensation control system ensures that the
condensation does not reach any rack-mounted components or cause
any damage. In most cases, the condensation evaporates prior to
reaching the MCS-100 unit condensation control system.
How does the MCS-100 unit control
humidity?
There is some room-air interchange, so the moisture content of the air
inside the unit is the same as the room.
Does the air flow within the
MCS-100 unit produce static
electricity?
Very low humidity levels in the chilled air may produce static
electricity. However, static electricity is not a problem if the MCS-100
unit is operated at the specified settings located in the HP Modular
Cooling System 200/100 Site Preparation Guide and the
Environmental specifications section.