HP 695161-001 Maintenance And Service Manual Download Page 11

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Illustrated parts catalog 11

End view shown

Cooling system component identification

The heat exchanger access hatches are located on top of the POD. The hatches are coated with a durable

finish to prevent corrosion.
Side view shown

Item

Component

Description

Heat exchangers

Use facility chilled water to cool the air in the HP POD 40c G2

Heat exchanger fan

banks

Operate at variable speeds to maintain the preprogrammed differential

pressure setpoint and the hot aisle temperature setpoint

Chilled water supply Supplies facility chilled water to cool the HP POD 40c G2

Chilled water return

Returns heated chilled water to the facility

HP POD 40c G2 racks

The HP POD 40c G2 contains a total of 20 IT racks.

Summary of Contents for 695161-001

Page 1: ...ized Datacenter 40c G2 Maintenance and Service Guide Abstract This guide provides maintenance and service guidance for the HP Performance Optimized Datacenter 40c HP POD 40c G2 Part Number 695161 001 August 2012 Edition 1 ...

Page 2: ...ithout notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein ...

Page 3: ...eplacing the differential pressure sensor 21 Door position contact 22 Removing the door position contact 22 Replacing the door position contact 22 Drain pan sensor 23 Removing the drain pan sensor 23 Replacing the drain pan sensor 24 ECS touchscreen 26 Removing the ECS touchscreen 26 Replacing the ECS touchscreen 27 EPO button 27 Removing the EPO button 28 Replacing the EPO button 29 EPO LED indic...

Page 4: ...moving the LED light 53 Replacing the LED light 54 Temperature sensor cold aisle 55 Removing the cold aisle temperature sensor 55 Replacing the cold aisle temperature sensor 56 Temperature sensor hot aisle 57 Removing the hot aisle temperature sensor 58 Replacing the hot aisle temperature sensor 59 VESDA filter 60 Removing the VESDA filter 61 Replacing the VESDA filter 61 Periodic maintenance 63 P...

Page 5: ... HP 73 HP contact information 73 Regulatory compliance notices 74 HP POD 40c G2 regulatory compliance 74 Safety and NEC compliance 74 Regulatory compliance identification numbers 75 Federal Communications Commission notice 75 Modifications 75 Cables 75 Canadian notice Avis Canadien 75 Regulatory requirements for EXIT signs 76 Glossary 77 Documentation feedback 79 Index 80 ...

Page 6: ...ccess to the overhead heat exchangers 2 Personnel access doors Provides access to the POD 3 Facility chilled water return Facilitates the return of chilled water to the POD 4 Facility chilled water supply Facilitates the supply of chilled water to the POD Parts and part number identification Review the contents of the HP POD 40c G2 to identify the following for each component Model number The mode...

Page 7: ...the cold aisle of the HP POD 40c G2 as shown in the following figure CSC Safety Approval placard Each HP POD 40c G2 has a CSC Safety Approval placard that includes the model number serial number and proof load The CSC Safety Approval placard is located on the cargo end of the HP POD 40c G2 as shown in the following figure Life safety component identification Internal life safety components ...

Page 8: ...d the optional fire suppression system 5 Fire suppression abort button Aborts the fire suppression system A fire suppression abort button is located next to each personnel door This is an optional component that might not be included Exit sign locations The exit signs within the HP POD 40c G2 contain tritium For information about the regulatory requirements regarding the handling transfer and disp...

Page 9: ... specifications The HP POD 40c G2 has eight power feeder couplings that provide the entrance for power to the POD The power feeders route into the top of each electrical panel on the end of the HP POD 40c G2 Top view shown The top of each electrical panel has four 10 16 cm 4 in welded couplings where the power feeders are connected Power feeders are sized in accordance with NEC and IEC regulations...

Page 10: ...0c G2 End view shown Item Component Description 1 Fire box Connection location for fire emergency and VESDAnet signals 2 Demarcation box Customer communication connection point for the following components ECS Security Phone 3 415 Y 240 V 3 phase 4 wire 800 A electrical panel Feed A power for critical IT loads electrical busways and house power 4 415 Y 240 V 3 phase 4 wire 800 A electrical panel F...

Page 11: ...n 1 Heat exchangers Use facility chilled water to cool the air in the HP POD 40c G2 2 Heat exchanger fan banks Operate at variable speeds to maintain the preprogrammed differential pressure setpoint and the hot aisle temperature setpoint 3 Chilled water supply Supplies facility chilled water to cool the HP POD 40c G2 4 Chilled water return Returns heated chilled water to the facility HP POD 40c G2...

Page 12: ...UT 4CH 637091 001 SPS TERMINAL SER INTFC RS4222 RS485 637092 001 SPS TERMINAL END BUS EXT 637093 001 SPS TERMINAL BUS TERM ETHERCAT 637094 001 SPS TERMINAL COUPLER ETHERCAT 637095 001 SPS ANALOG INPUT 4 20mA 4CH 637096 001 SPS TERMINAL ANALOG OUTPUT 0 10V 2CH 637097 001 SPS TERMINAL BUS END 637098 001 SPS TERMINAL PRESSURE DIFF 1CH 637099 001 SPS TERMINAL DIGITAL INPUT 4CH 637100 001 SPS TERMINAL ...

Page 13: ...comply with manufacturer specifications Spare part number Description 637117 001 SPS CKT BKR T2 100AF 40AT 637126 001 SPS CKT BKR T4 200A 600V 3POLE 637128 001 SPS POWER METER PAC 3200 637130 001 SPS TRANSFORMER CT PANEL MT 637132 001 SPS TVSS 637142 001 SPS SHUNT TRIP 800A CKT BRKR 637143 001 SPS CKT BREAKER SMD 3P 800A 637144 001 24V UPS power supply 637145 001 SPS PWR SUPPLY REDUNDANT MOD 63714...

Page 14: ... replaced by a licensed fire safety contractor IMPORTANT These parts must be replaced by a licensed fire safety contractor according to all local and regional fire codes and in compliance with manufacturer specifications Spare part number Description 637133 001 Smoke detector ...

Page 15: ...occupancy WARNING To avoid the risk of personal injury or loss of life all personnel must comply with PPE requirements when opening or working inside areas of the HP POD 40c G2 that are marked as hazardous voltage per NFPA 70E in accordance with NEC NA and IEC EMEA and APJ WARNING To avoid the risk of personal injury hearing protection must be worn at all times when working inside the HP POD 40c G...

Page 16: ...irements for initial and periodic inspections Arranging for and receiving all required local permits including initial commissioning as well as standard and repair maintenance Arranging for the connection of the agent tanks refilling of tanks and all system testing including pressure tests All general maintenance of the suppression system must be completed by an authorized technician Additional lo...

Page 17: ...hannels to remove the filter Replacing the air filter 1 Angle the filter to position the top corners in the frame channels and then push the filter up to the top of the frame 2 Press in the bottom corners of the filter until the locking tabs engage and the filter clicks into place ...

Page 18: ...sure redundancy You need a socket wrench for installation IMPORTANT HP recommends that you shut down the associated IT equipment and de energize the appropriate section of the power busway before attempting to remove or replace a busway drop box The corresponding branch circuit breaker is labeled on the busway Removing the busway drop box 1 Turn the power off by opening both breakers on the busway...

Page 19: ...sway drop box The drop box weighs approximately 9 kg 20 lb 1 Place the silver drop box bracket onto the electrical busway where you want to replace the busway drop box 1 2 Note the required rotation indicated on the drop box insert the drop box into the drop box bracket on the electrical busway and then rotate the drop box 90 until it locks into place 2 CAUTION To prevent damage to the drop box an...

Page 20: ...g a socket wrench to insert and tighten a bolt 4 5 Connect the PDUs to the busway drop box 1 6 Turn the power on by closing both breakers on the busway drop box 2 Differential pressure sensor The differential pressure sensors are located in the cold aisle You need a Phillips head screwdriver for installation ...

Page 21: ...ng the differential pressure sensor and then remove the differential pressure sensor Replacing the differential pressure sensor 1 Replace the differential pressure sensor and then secure the differential pressure sensor with two bolts 1 and two nuts 2 2 Insert the pressure sensor tubes into the differential pressure sensor according to the connection locations you labeled during the removal proced...

Page 22: ...ng the upper magnet 1 2 Cut the tie wrap 2 and loosen the nut on the HP POD 40c G2 structure that secures the wire 3 Pull the wire all the way through to the point of entry or ECS panel 3 Replacing the door position contact 1 Feed the wire all the way through from the point of entry or ECS panel 1 2 Tighten the nut on the HP POD 40c G2 structure that secures the wire and then replace the tie wrap ...

Page 23: ...Phillips head screwdriver and a small flathead screwdriver for installation Removing the drain pan sensor 1 If you are removing a heat exchanger drain pan sensor do the following a Inspect the area by removing the center bottom fan from the center fan bank in the associated zone For more information see Removing the fan on page 38 b To gain additional working space you might need to remove a fan b...

Page 24: ... wire through from the satellite box to the sensor location and then remove the sensor Heat exchanger drain pan sensor or Header drain pan sensor Replacing the drain pan sensor 1 Position the sensor in the drain pan Heat exchanger drain pan sensor or ...

Page 25: ...priate port on the satellite box terminal Heat exchanger drain pan sensor or Header drain pan sensor 4 If you are replacing a heat exchanger drain pan sensor do the following a Replace the fan bank you removed if applicable For more information see Replacing the fan bank on page 41 b Replace the fan you removed if applicable For more information see Replacing the fan on page 39 ...

Page 26: ...e HP POD 40c G2 You need a Phillips head screwdriver for installation Removing the ECS touchscreen 1 Disconnect the cables attached to the back of the ECS touchscreen 2 Remove the eight screws on the back of the door that secure the ECS touchscreen 1 and then push the ESC touchscreen through the front of the door to remove the ECS touchscreen 2 ...

Page 27: ... the front of the door 1 and then secure the ECS touchscreen to the back of the door with eight screws 2 2 Connect the cables to the back of the ECS touchscreen EPO button There are two EPO buttons one by each personnel access door in the HP POD 40c G2 You need a Phillips head screwdriver for installation ...

Page 28: ...lacement procedures 28 Removing the EPO button 1 Remove the two screws securing the tamper cover 1 and then remove the tamper cover 2 2 Remove the four screws securing the EPO button 1 and then remove the EPO button 2 ...

Page 29: ...nt procedures 29 Replacing the EPO button 1 Replace the EPO button 1 and then replace the four screws that secure the EPO button 2 2 Replace the tamper cover 1 and then replace the two screws that secure the tamper cover 2 ...

Page 30: ...hite 1 3 red 2 yellow 4 and green 5 EPO LED indicators Tools are not required for installation Removing the EPO LED indicator 1 On the back of the ECS cabinet door push the gray tab on the EPO LED indicator module down to release the module 1 and then pull the module out of the door 2 ...

Page 31: ...Removal and replacement procedures 31 2 Unscrew the EPO LED indicator bulb Replacing the EPO LED indicator 1 Screw the new EPO LED indicator bulb into the module ...

Page 32: ...rmisters 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 Replaci...

Page 33: ...ow actuator The external chilled water flow actuator is located on top of the HP POD 40c G2 You need a wrench for installation Removing the external chilled water flow actuator 1 Open and danger tag the associated circuit breaker in the ECS cabinet The circuit breakers are identified on the panel schedule ...

Page 34: ...ement procedures 34 2 Remove the four bolts securing the face plate 1 and then remove the face plate 2 3 Disconnect the power to the actuator 4 Remove the four bolts securing the actuator 1 and then remove the actuator 2 ...

Page 35: ...r bolts 2 2 Connect the power to the actuator 3 Replace the actuator face plate 1 and then secure the face plate with four bolts 2 4 Close the associated circuit breaker in the ECS cabinet External chilled water flow valve The external chilled water flow valve is the butterfly valve located on top of the HP POD 40c G2 You need a wrench for installation ...

Page 36: ...xternal chilled water flow actuator on page 33 2 Remove the eight bolts surrounding the valve 1 and then remove the valve 2 Replacing the external chilled water flow valve 1 Replace the valve 1 and then secure the valve with eight bolts 2 2 Replace the external chilled water flow actuator For detailed instructions see Replacing the external chilled water flow actuator on page 35 ...

Page 37: ... of the HP POD 40c G2 You need an adjustable wrench or an appropriately sized box wrench for installation Removing the external pressure gauge isolation valve Loosen the connection securing the valve 1 and then remove the valve 2 Replacing the external pressure gauge isolation valve Insert the new valve 1 and then tighten the connection 2 ...

Page 38: ...ans per cooling zone CAUTION Power must be removed from the fan power assembly before removing or replacing a fan or fan bank You need a Phillips head screwdriver for installation Removing the fan 1 Disconnect both power supplies from the fan power assembly ...

Page 39: ...artially remove the fan by pulling it straight out 2 3 Disconnect the wire 4 Remove the fan from the assembly Replacing the fan 1 Connect the wire 2 Insert the fan into the assembly and push until the fan is fully seated 1 3 Secure the fan with three screws 2 4 Connect the power supplies to the fan power assembly ...

Page 40: ...be removed from the fan power assembly before removing or replacing a fan or fan bank You need a Phillips head screwdriver for installation Removing the fan bank 1 Disconnect both power supplies from the fan power assembly 2 Remove the fan bank wire harness 1 3 Remove the six screws that secure the fan bank 2 ...

Page 41: ...s 41 4 Remove the fan bank by pulling it straight out 3 Replacing the fan bank 1 Insert the fan bank 1 2 Secure the fan bank with six screws 2 3 Replace the fan bank wire harness 3 4 Connect the power supplies to the fan power assembly ...

Page 42: ...ire alarm strobe light at the standard personnel entry door You need a Phillips head screwdriver for installation Removing the fire strobe light 1 Remove the four screw cover plates 1 2 Remove the four screws securing the components 2 and then disconnect the wiring 3 Remove the electric sounder with strobe the semi flush plate and the standard back box 3 ...

Page 43: ...box the semi flush plate and the electric sounder with strobe 1 and then attach the wiring 2 Secure the components with four screws 2 3 Attach the four screw cover plates 3 Humidifier The humidifier is located in the cold aisle humidifier bump out You need a Phillips head screwdriver for installation ...

Page 44: ...c G2 exterior 4 Disconnect the water supply line to the humidifier on the HP POD 40c G2 exterior to relieve the water pressure 5 Open and danger tag the associated circuit breaker in the ECS cabinet The circuit breakers are identified on the panel schedule 6 Remove the four screws on the corners of the humidifier cover 1 and then remove the cover 2 7 Locate the power board and disconnect the two i...

Page 45: ...and replacement procedures 45 10 Disconnect and remove the external electrical wiring from the housing 3 11 Remove the four screws that secure the humidifier body to the wall 1 and then remove the humidifier 2 ...

Page 46: ...difier 1 and then secure the humidifier to the wall with four screws 2 2 Connect the drain 1 3 Connect the humidifier to the water supply line 2 4 Route and connect the external electrical wiring to the housing 3 5 Locate the power board and connect the two internal electrical wires ...

Page 47: ...n the HP POD 40c G2 exterior 9 Close the associated circuit breaker in the ECS cabinet 10 Press the power button on the outside of the humidifier to power up the humidifier 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 ...

Page 48: ...opening 1 and then slide the tab to the open position 2 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 4 Squeeze the two terminal cover fins to remove the cables from the terminal block 5 Remove the screws securing the mounting base to the wall Replacing the humidistat...

Page 49: ...e 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 as...

Page 50: ... HP POD 40c G2 contains two humidity sensors one in cooling zone 2 and one in cooling zone 5 You need a Phillips head screwdriver for installation Removing the humidity sensor 1 Remove the four screws that secure the sensor cover 1 and then remove the cover 2 ...

Page 51: ...res 51 2 Loosen the sensor wires by turning the nut counter clockwise 1 remove the sensor wires from the terminal block and then remove the sensor wires 3 3 Remove the two screws that secure the sensor 1 and then remove the sensor 2 ...

Page 52: ...2 Replacing the humidity sensor 1 Replace the sensor 1 and then secure the sensor with two screws 2 2 Insert the sensor wire into the nut 1 secure the wire by turning the nut clockwise 2 and then insert the wire into the terminal block 3 ...

Page 53: ...rocedures 53 3 Replace the sensor cover 1 and then secure the cover with four screws 2 LED light Each POD contains eight LED lights You need adhesive tape for installation Removing the LED light 1 Pull the LED light panel out 1 ...

Page 54: ...nd replacement procedures 54 2 Disconnect the LED light panel 2 Replacing the LED light 1 Connect the new LED light panel to the LED fixture 1 2 Replace the LED light panel by pressing it into the LED fixture 2 ...

Page 55: ...ontains six temperature sensors in the cold aisle You need a Phillips head screwdriver and scissors for installation Removing the cold aisle temperature sensor 1 Remove the two screws that secure the sensor cover 1 and then remove the cover 2 2 Cut the two red wires inside the sensor box ...

Page 56: ...mp 1 rotate the clamp 2 and then pull the clamp out to remove the clamp 3 4 Remove the sensor tube Replacing the cold aisle temperature sensor 1 Replace the sensor tube and then secure the tube with five clamps For each clamp replace the clamp 1 and then secure the clamp with a screw 2 2 Splice the two sensor tube wires with the red wires inside the sensor box ...

Page 57: ...ures 57 3 Replace the sensor cover 1 and then secure the cover with two screws 2 Temperature sensor hot aisle The HP POD 40c G2 contains six temperature sensors in the hot aisle You need a Phillips head screwdriver for installation ...

Page 58: ...aisle temperature sensor 1 Remove the four screws that secure the sensor cover 1 and then remove the cover 2 2 Loosen the sensor wires by turning the nut counter clockwise 1 remove the sensor wires from the terminal block and then remove the sensor wires 3 ...

Page 59: ...replacement procedures 59 3 Remove the two screws that secure the sensor 1 and then remove the sensor 2 Replacing the hot aisle temperature sensor 1 Replace the sensor 1 and then secure the sensor with two screws 2 ...

Page 60: ...block 3 3 Replace the sensor cover 1 and then secure the cover with four screws 2 VESDA filter The VESDA filter sensor notifies you through the ECS when a filter must be changed HP recommends periodically inspecting and changing each VESDA filter A VESDA filter can be replaced during normal HP POD 40c G2 operation You need a Phillips head screwdriver for installation ...

Page 61: ...ter 1 Remove the filter cover on the front of the VESDA unit 2 Remove the 10mm screw that secures the VESDA filter 1 and then remove the filter 2 Replacing the VESDA filter 1 Insert the new VESDA filter 1 and then replace the 10mm screw that secures the filter 2 ...

Page 62: ...Removal and replacement procedures 62 2 Replace the VESDA filter cover ...

Page 63: ... through freely Condensate traps are filled with water Clean pans as necessary Quarterly HP and certified facilities personnel Drain pan sensors Inspect and test replace as necessary If a leak is detected see Leak detection maintenance on page 64 Quarterly HP and certified facilities personnel Conduct visual inspection for leakage during the air filter checks Inspect and clean as necessary Quarter...

Page 64: ...bility to you IMPORTANT HP recommends shutting down the POD after a leak is detected For more information see Power down procedure in the user guide Non isolable leak detection A non isolable leak is a leak from the main supply line or the return header To repair a non isolable leak 1 Power down all IT equipment 2 Re direct the leaking water away from the IT equipment 3 Repair the leak or contact ...

Page 65: ...r connections under normal customer load including transformer switchboard and electrical panels Periodic thermal scans of all electrical connections can reduce issues caused by connections becoming loose due to operational vibrations over time Annually Licensed electrician Busway drop box visual inspection and torque test of connections Retighten as necessary and verify adequate distance between ...

Page 66: ...rnal transformer and switchboard torque test Clean and retighten as necessary Bi annually Licensed electrician Service entrance grounding ground rod ground well connecting lug located at locations external to POD torque test Clean and retighten as necessary Bi annually Licensed electrician Grounding system bonding jumpers connecting racks to POD structure and rack to rack torque test Clean and ret...

Page 67: ...censed fire safety contractor Flush the VESDA pipe network Every 2 years Licensed fire safety contractor VESDA system air sampling smoke test As required by local code Licensed fire safety contractor Suppression system test As required by local code Licensed fire safety contractor Fire pull visual and operational inspection As required by local code Licensed fire safety contractor Fire strobe and ...

Page 68: ...d at each personnel door Functional test Verify system time out reset when switch is activated Annually Licensed EPO safety contractor EPO status light Verify operation in different modes Replace lamps as necessary Annually Licensed EPO safety contractor Exit lights Verify exit lights are visible when all lighting is off and POD doors are closed Bi annually Certified facilities personnel Tritium e...

Page 69: ...and electrical systems Annually HP and certified facilities personnel Panel operational testing Annually HP and certified facilities personnel Breakers disconnects Annually HP and certified facilities personnel Third party components See the Operations and Maintenance Manual for the HP Performance Optimized Datacenter 40c for other required maintenance items UPS Component to be inspected Task Freq...

Page 70: ...ne per rack Maximum quantity of PDUs per HP POD 40c G2 40 two per rack Maximum power per PDU 30A 17 kW 60A 34 kW Network supported Bulk cable pass through fiber Bulk cable pass through copper Optional External rated DEMARC box 1 The Empty weight includes the HP POD 40c G2 structure empty racks PDUs and drop boxes It does not include IT equipment 2 The maximum power depends on the exact installatio...

Page 71: ...0 flanges Rack specifications Standard HP POD 40c G2 racks AT978A Feature Specification U height 50U Width 54 6 cm 21 5 in Depth 99 cm 39 in Maximum load weight 1 360 7 kg 3 000 lb This specification indicates the maximum clearance for the cold aisle Equipment cannot exceed this measurement Thermal and air flow performance Maximum thermal and air flow performance parameters HP POD 40c G2 specifica...

Page 72: ...ating altitude 76 2 m to 9 144 m 250 ft to 30 000 ft For non operating specifications consider the temperature of computer and IT equipment inside the HP POD 40c G2 Optional features specifications Feature Specification Fire suppression 3M Novec 1230 fire extinguishing system provided in two canisters main and reserve Card reader 12 key pad with 125 KHz proximity and 13 56 MHz contactless smart ca...

Page 73: ...Technical support registration number if applicable Product serial number Product model name and number Product identification number Applicable error messages Add on boards or hardware Third party hardware or software Operating system type and revision level HP contact information For United States and worldwide contact information see the Contact HP website http www hp com go assistance In the U...

Page 74: ...ance with NEC NA and IEC EMEA and APJ Relevant parts of UL1995 are applied to the air handling features of the product For more information see HP POD 40c G2 regulatory compliance on page 74 The HP POD 40c G2 is not suitable for long term human occupancy The HP POD 40c G2 has service access areas for periodic maintenance and service These areas must be used only by owner authorized personnel who a...

Page 75: ... comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interferen...

Page 76: ...riate Agreement State any lost stolen or broken signs must inform the NRC or an Agreement State of a name change change of address or replacement of a general licensee s designated representative must NOT give away or sell the sign to another individual company or institution unless the device is to remain in use at its original intended location in such a case the transferor is to notify the reci...

Page 77: ...it from their electrical supply door A hinged portion of an enclosure that covers an opening ECS environmental control system EPO emergency power off equipment A general term including fittings devices appliances luminaires apparatus machinery and the like used as a part of or in connection with a modular data center Source NEC fuse branch circuit type A fuse of Class CC G H J K L R and T These fu...

Page 78: ...of personnel supplementary protector A manually resettable device designed to open the circuit automatically on a predetermined value of time versus current or voltage within an appliance or other electrical equipment The protector can also be provided manually to open or close the circuit These devices can provide supplementary protection only UL Underwriters Laboratory UPS uninterruptible power ...

Page 79: ...oviding documentation that meets your needs To help us improve the documentation send any errors suggestions or comments to Documentation Feedback mailto docsfeedback hp com Include the document title and part number version number or the URL when submitting your feedback ...

Page 80: ...rential pressure sensor replacing 21 differential pressure sensors 20 disposal waste 76 documentation 79 documentation feedback 79 door contact removing 22 door contact replacing 22 door contacts 22 downloading files 73 drain pan sensor removing 23 drain pan sensor replacing 24 drain pan sensors 23 drains 65 drop box removing 18 drop box replacing 19 drop boxes 18 E ECS components 65 ECS touchscre...

Page 81: ...l components 6 modifications FCC notice 75 N notices 74 O operator safety 15 options 72 P part numbers 6 12 periodic maintenance 63 phone numbers 73 power feeders 9 pressure gauge isolation valve 37 pressure gauge isolation valve removing 37 pressure gauge isolation valve replacing 37 pressure sensor removing 21 pressure sensor replacing 21 pressure sensors 20 R rack specifications 71 radioactive ...

Page 82: ...sensor 55 57 temperature sensor removing 55 58 temperature sensor replacing 56 59 thermal air flow performance 71 thermister removing 32 thermister replacing 32 thermisters 32 third party components 69 U UPS maintenance 69 V VESDA filter 60 VESDA filter removing 61 VESDA filter replacing 61 W water specifications 71 website HP 73 work space lighting 53 ...

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