HP 20cp User Manual download pdf (Page 35)

Environmental control system 35

By connecting your HP POD 20c to a BMS system, you can monitor the various parameters and alarms. For

more information, see "Navigating the ECS interface (on page 43)." The complete list of parameters and

alarms that can be monitored will be discussed with your facilities personnel.

IMPORTANT: If your site does not have a BMS, HP POD 20c ECS data can be sent to and

viewed from a set IP address. Communication occurs through an Ethernet cable that is connected

to the demarcation box (on page 66).

Sensors

The HP POD 20c has several temperature sensors that monitor the environmental factors and communicate

data back to the ECS.

Humidity sensors

Two humidity sensors monitor humidity in the cold aisle and report data to the ECS.

Pressure sensors

Six Beckhoff pressure sensors located in the control cabinet measure the differential pressure between the hot

aisle and the cold aisle, as well as the air filters. These pressure sensors monitor the pressure at nine sampling

locations throughout the HP POD 20c and report output data to the ECS. The ECS uses the calculated aisle

differential pressures to control fan speed and uses the zone filter differential pressure to indicate when filters

need to be replaced.

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HP 20cp User Manual Page 35