HP Performance Optimized Data Center (POD) 20cp manual Humidistat, Removing the humidistat

Page 35

2.Route the wire to the associated zone satellite box.

3.Connect the sensor wire to the appropriate port on the satellite box terminal.

Humidistat

The humidistat is located in the cold aisle humidifier bump out.

You need a Phillips-head screwdriver and a flathead screwdriver for installation.

Removing the humidistat

1.Press the power button on the outside of the humidifier to power down the humidifier.

2.Open and danger tag the associated circuit breaker in the ECS cabinet. The circuit breakers are identified on the panel schedule.

3.Detach the front panel of the humidistat from the mounting base:

a. Remove the screw securing the tab in the opening (1), and then slide the tab to the open position (2).

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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 DescriptionCold aisle clearance HP POD 20c racksAisle clearances Hot aisle clearance Replaceable components for China modelsSpare part number Description Overview Installation considerations Optional Fire suppression systemRemoving the EPO button Removal and replacement proceduresButtons EPO buttonRemoving the control relay module DIN rail componentsControl relay module Replacing the control relay module Differential pressure sensorReplacing the differential pressure sensor Removing the differential pressure sensorReplacing the magnetic contacts Door position devicesMagnetic contacts Removing the magnetic contactsRemoving the busway drop box ElectricalBusway 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 fanReplacing the heat exchanger air filter FiltersHeat exchanger air filters Removing 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 indicatorsReplacing the LED light LightsLED light Removing the LED lightRemoving the drain pan sensor SensorsHeat exchanger condensate drain pan sensors 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 Replacing the cold aisle temperature sensor Temperature sensor cold aisleRemoving the cold aisle temperature sensor Removing the hot aisle temperature sensor Temperature sensors hot aisleChilled water supply and return header pressure sensors Replacing the hot aisle temperature sensorFluid system components You need a wrench to remove and replace the pressure sensors Replacing the chilled water flow sensor Chilled water flow sensorRemoving 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 Removing the external chilled water isolation valve ValvesExternal chilled water isolation valve Removing the external pressure gauge isolation valve External pressure gauge isolation valveReplacing the external chilled water isolation valve Replacing the external pressure gauge isolation valve Cooling system Periodic maintenancePeriodic maintenance overview Qualified personnelLeak 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 controlElectrical specifications SpecificationsGeneral HP POD 20c specifications Thermal and air flow performance Rack specificationsEnvironmental specifications Water specificationsOptional features specifications HP contact information Contacting HPBefore you contact HP HP POD 20c regulatory compliance Safety and NEC complianceRegulatory information 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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