HP Performance Optimized Data Center (POD) 20cp manual Humidity sensor

Page 37

b.Use a flathead screwdriver to the press the release button (1), and then pull the front panel from the bottom to detach the panel (2). The two parts remain connected by a flat cable.

2.Secure the mounting base to the wall using the screws provided.

3.Squeeze the two terminal cover fins to remove the terminal covers.

4.Make the required connections by running the connection cables through the center hole in the bottom of the mounting base and connecting the cables to the terminal block.

5.Separate the connection and control cables from the relay cables.

6.Attach the front panel.

7.Close the associated circuit breaker in the ECS cabinet.

8.Press the power button on the outside of the humidifier to power up the humidifier.

Humidity sensor

The HP POD 20c contains one humidity sensor. It is located in the cold aisle in cooling zone 2.

You need a screwdriver to remove and replace the humidity sensor.

Removal and replacement procedures 37

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Contents Abstract Page Contents Contacting HP Structural component identification Illustrated parts catalogComponent Description Life safety component identificationFront view shown Component Description Electrical power component identificationAccessed only by authorized personnel Control cabinet component identification Electrical safety label DescriptionAisle clearances HP POD 20c racksCold aisle clearance Hot aisle clearance Replaceable components for China modelsSpare part number Description Overview Installation considerations Optional Fire suppression systemButtons Removal and replacement proceduresEPO button Removing the EPO buttonControl relay module DIN rail componentsRemoving the control relay module Replacing the control relay module Differential pressure sensorReplacing the differential pressure sensor Removing the differential pressure sensorMagnetic contacts Door position devicesRemoving the magnetic contacts Replacing the magnetic contactsBusway drop box ElectricalRemoving the busway drop box Removal and replacement procedures Replacing the busway drop box IT cooling fan FansRemoving the IT cooling fan Replacing the IT cooling fan Ventilation fanReplacing the Rittal SK 3326 ventilation fan Removing the Rittal SK 3326 ventilation fanHeat exchanger air filters FiltersRemoving the heat exchanger air filter Replacing the heat exchanger air filterRemoving the Vesda filter Vesda filterReplacing the Vesda filter Rittal SK 3326 ventilation fan filterReplacing the Rittal SK 3326 ventilation fan filter Removing the Rittal SK 3326 ventilation fan filterECS touchscreen and EPO indicators IndicatorsReplacing the ECS EPO LED indicators Removing the ECS EPO LED indicatorsLED light LightsRemoving the LED light Replacing the LED lightHeat exchanger condensate drain pan sensors SensorsRemoving the drain pan sensor Replacing the drain pan sensor Chilled water supply and return header drain pan sensorsRemoving the humidistat HumidistatReplacing the humidistat Humidity sensor Replacing the humidity sensor Removing the humidity sensorRemoving temperature sensor from the chilled water system Chilled water system temperature sensorReplacing the temperature sensor in the chilled water system Chilled water temperature sensor internal componentsReplace the chilled water temperature sensor circuit board Removal and replacement procedures Removing the cold aisle temperature sensor Temperature sensor cold aisleReplacing the cold aisle temperature sensor Removing the hot aisle temperature sensor Temperature sensors hot aisleFluid system components Replacing the hot aisle temperature sensorChilled water supply and return header pressure sensors You need a wrench to remove and replace the pressure sensors Removing the chilled water flow sensor Chilled water flow sensorReplacing the chilled water flow sensor Chilled water system temperature sensor Chilled water temperature sensor internal components Replace the chilled water temperature sensor circuit board Heat exchanger Removing the humidifier HumidifierRemoval and replacement procedures Replacing the humidifier Removal and replacement procedures Humidistat if installed Replacing the humidistat External chilled water isolation valve ValvesRemoving the external chilled water isolation valve Replacing the external chilled water isolation valve External pressure gauge isolation valveRemoving the external pressure gauge isolation valve Replacing the external pressure gauge isolation valve Periodic maintenance overview Periodic maintenanceQualified personnel Cooling systemLeak isolation Leak detectionHumidifier if installed ECS POD Shut Down Required HP POD 20c structure Fire alarm and suppression systemEPO Functional Test Life safetyThird-party components Access controlGeneral HP POD 20c specifications SpecificationsElectrical specifications Environmental specifications Rack specificationsWater specifications Thermal and air flow performanceOptional features specifications Before you contact HP Contacting HPHP contact information Regulatory information Safety and NEC complianceHP POD 20c regulatory compliance Regulatory requirements for Exit signs With Council, Inc Regulatory information Branch circuit GlossarySOW Documentation feedback Index HP POD 20c structure Temperature sensors, cold aisle
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