HP Performance Optimized Data Center (POD) 40cp manual Removing the EPO thermister

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2.Push the module into the slot on the back of the ECS cabinet door until it clicks into place.

EPO thermister

Two EPO thermisters are located in the hot aisle, both in zone 4.

While the thermisters are not technically at-temperature monitoring devices, when the hot aisle temperature reaches 60ºC (140ºF), the thermister switch closes. When both thermister switches are closed, the EPO system initiates an emergency shutdown.

You need scissors for installation.

Removing the EPO thermister

1.Cut the tie wraps securing the thermister (1).

2.Pull the thermister down to remove the thermister (2).

Replacing the EPO thermister

1.Insert the replacement thermister (1).

Removal and replacement procedures 32

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Contents Abstract Page Contents Periodic maintenance Contacting HP Parts and part number identification Illustrated parts catalogStructural component identification Life safety component identification Electrical power component identification Component DescriptionExternal panel labels Front view shown Callout Electrical safety label Description Electrical safety label Description Control cabinet component identificationCooling system component identification HP POD 40c NA racksAisle clearances Cold aisle clearanceReplaceable components Hot aisle clearanceOperator safety Removal and replacement proceduresSafety considerations Removing the air filter Fire detection and suppressionAir filter Replacing the air filter Busway drop box Removing the busway drop boxReplacing the busway drop box Differential pressure sensor Removing the differential pressure sensor Replacing the differential pressure sensorReplacing the door position contact Door position contactRemoving the door position contact Drain pan sensor Removing the drain pan sensorReplacing the drain pan sensor Removal and replacement procedures ECS touchscreen Removing the ECS touchscreenEPO button Replacing the ECS touchscreenRemoving the EPO button Replacing the EPO button EPO LED indicators Removing the EPO LED indicatorReplacing the EPO LED indicator Replacing the EPO thermister EPO thermisterRemoving the EPO thermister External chilled water flow actuator Removing the external chilled water flow actuatorRemoval and replacement procedures External chilled water flow valve Replacing the external chilled water flow actuatorReplacing the external chilled water flow valve External pressure gauge isolation valveRemoving the external chilled water flow valve Replacing the external pressure gauge isolation valve FanRemoving the external pressure gauge isolation valve Removing the fan Replacing the fan Fan bank Removing the fan bankReplacing the fan bank Fire strobe light Removing the fire strobe lightHumidifier Replacing the fire strobe lightRemoving the humidifier Removal and replacement procedures Replacing the humidifier Humidistat Removing the humidistatReplacing the humidistat Removal and replacement procedures Humidity sensor Removing the humidity sensorRemoval and replacement procedures Replacing the humidity sensor LED light Removing the LED lightTemperature sensor cold aisle Replacing the LED lightRemoving the cold aisle temperature sensor Replacing the cold aisle temperature sensor Temperature sensor hot aisle Removing the hot aisle temperature sensorRemoval and replacement procedures Replacing the hot aisle temperature sensor Vesda filter Removing the Vesda filterReplacing the Vesda filter Periodic maintenance Periodic maintenance overviewCooling system maintenance schedule Qualified personnelLeak detection maintenance Humidifier if installed ECSElectrical POD Shut Down RequiredFire alarm and suppression system VesdaLife safety HP POD 40c NA structureAccess control Third-party componentsPeriodic maintenance Electrical specifications SpecificationsGeneral specifications Water specifications Rack specificationsEnvironmental specifications Thermal and air flow performanceOptional features specifications HP contact information Contacting HPBefore you contact HP Regulatory information Safety and regulatory complianceWarranty information Glossary AHJPDU Documentation feedback Index Temperature sensor
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