American Power Conversion Central Air Conditioning System manual

Networ kAIR ™ IR P r ecis ion Ai r Co nd it io ner In-r ow Oper atio n, Maint enan ce, and T r ou ble shoot ing[...]

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Cont ents Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting i Oper atio n . ..... ..... ..... ..... .... ..... ..... ..... ..... .. ..... ..... .... ... 1 Display In terface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Using the Displa y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

ii Netw orkAI R IR O peratio n , Ma inten ance, a nd T roubles hoot ing Set Up Modu le Cont rol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Calibrate airflow manually . . . . . . . . . . . . . . . . . . . . . . . . 17 Cal ibr ate ai rflo w a utoma tica lly . . . . . . . . . . . . . . . . . . . . . 17 Rese t var iab le fr eque nc[...]

Netwo rkAIR IR Operat ion, Maint enance, a nd Troubles hooting iii View Status Readin gs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Scr olling st atus screen s . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5 Module sta tus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Syst em status . . . . . .[...]

iv Networ kAIR I R Oper atio n, Main tena nce, an d Trou blesh ootin g Mainten anc e .... ..... .... ..... ..... ..... ..... .... ..... ..... ..... ..... 61 Mont hly Preven tive Mainten ance . . . . . . . . . . . . . . . . . . . . . . . 61 Environ ment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1 Cleanliness . . . . . . . .[...]

Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 1 Operation Display Int erface Item Fu nction ! Major Alarm LED When red, a major alarm c onditi on exi sts. " Minor Alarm LED When yell ow , a minor al arm cond ition exists. # Check Log LED When yell ow , at leas t one ne w major a larm, min or alarm, or e vent ha s occurre d. $ [...]

2 N etworkAIR IR Opera tion, Maintenance, and Troubleshooting Usin g the Display The first tim e you apply power to th e NetworkAIR IR I n-row Precision Air Conditioner the display initializes and runs an LED and alar m-tone test. Scr olli ng stat us sc r eens After st art-up, th e interface d isplays the f irmware r evision n umber (if the fast st[...]

Operat ion: Using t he Displ ay Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 3 Mai n m en u s cr ee n On any top-level statu s screen, press the E NTER or E SC key to o pen the main menu s creen. Navigating t he inter face Sel ecto r a rrows. Press t he up or d own ar row k ey to move t he s electo r arr ow ! to a m enu opti on or[...]

Oper ation : Using the D ispla y 4 N etworkAIR IR Opera tion, Maintenance, and Troubleshooting Pas swor d e ntry The Mod ule has two lev el s of pa sswo rd prot ecti on: • User password for us ers who need to change basi c and envi ronmental se ttings • Service password for users who need to modify settings that control the components in the Mo[...]

Operat ion: Using t he Displ ay Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 5 Stop t he Syst em Pa th: Ma in Menu > On/Of f T o stop the System, select th e On/O ff option on th e main menu and change the setting to Off . Note Change the setting to Off to shut down all m odes of operation and the blower fan ; the display and t[...]

6 N etworkAIR IR Opera tion, Maintenance, and Troubleshooting Set Up System Confi guration The System configuration options are s et at the factory and may be modified during th e commissioning of the Modules in the System. Syst em Opt ion s Path: Main > Setup > System # > System Config > System Options The Sy stem Options menu contains[...]

Opera tion: Set Up Syst em Configur ation Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 7 # PCIOMs. Set the number of Programmable Customer Input/Output Modules (PCIOMs) installed in the user in terface box . This setting controls the number of input contacts and o utput relays available in the Input/Output menu. # Modules in Sys. [...]

Operat ion: Se t Up Sys tem Conf igurat ion 8 N etworkAIR IR Opera tion, Maintenance, and Troubleshooting Syste m Delays Path: Main > Setup > System # > System Config > System Delays The System delays protect the Modules in the System from excessive wear an d damage, and keep the modes fr om workin g against each other . Comp Min O N. T[...]

Opera tion: Set Up Syst em Configur ation Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 9 Building management Path: Main > Setup > System # > System Con fig > Buildin g Management If yo u a re us ing a bui ldi ng ma nag emen t sys tem with yo ur Ne two rkAI R IR In -r ow Pr ecis ion Air Conditioner, y ou must set th e f[...]

10 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Optio ns for Fl ui d-Cool ed M odu les W ater-cooled Mo dules have settings fo r the valves a nd piping n eeded to accommod ate the heat o f rejection method. The Netwo rkAIR IR In-row Precision Air Conditioner provides c ooling by using a fluid coil without a compressor . The follo wing[...]

Operat ion: Opti ons for Fluid -Cooled Modules Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 11 Va l v e Ty p e s Path: Main > Se tup > System # > Syst em Config > V alve T yp es Set the type of valves installed in your piping syste m. Each valve can be either two-way or three-way . Economizer-equipped Systems use th re[...]

Operat ion: Opti ons for Fluid -Cooled Modules 12 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Coil Fluid T emp Activation Thre shold and Deadband Path: Main > Setup > System # > System Config > Coil Fluid Options The selectio ns for Coil Flu id Options help control the optional MultiCool coil or Economizer coil in equippe[...]

Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 13 Set Up C ontac ts and Rel ays The System can monitor exter nal contact closure e vents. Possible application s include: • Magnetic co ntact switches • W in dow foil • T am per sw itc hes • Heat detectors • W ater sens ors • Pre ssure sens ors • Bu ildin g smok e and fi [...]

Operat ion: Se t Up Cont acts and Re lays 14 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Acti on. Set the System controller to respond to the ch ange of status for an input in one of the following ways : Output r elays Path: Main > Setup > Syste m # > Input/Outp ut > Outp ut Relays The Main Module supports up to 1 6 user-[...]

Operat ion: Set Up Con tacts and Relays Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 15 Act ion. The Act ion field changes as you scroll th rough the list of events that can b e mapped to this relay . Remove indicates that the event is alre ady associated with this r elay . Add indicates th at the event is not associated with this[...]

16 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Set Up Mo dule Configurat ion The Mo dule config uration settings help the controller determine w hich componen ts are av ailable and how the Module should operate. Co nfig ure Mo du le Paths: Main > Setup > Module > M ain Module > Module Config >Config Module Main > Se[...]

Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 17 Set Up M odule Co ntr ol The Module C ontrol options are config ured and tuned during the co mmissioning of each Module. Cal ib rat e ai rf low m anua l ly Nom Coil DP: Set the nominal coil diffe rential pressure. Blower Spd. A dju st t he fre quen cy of the blo we r . Coil DP : Disp[...]

Operat ion: Se t Up Modul e Contr ol 18 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Rese t variab le fr equency dri ve Paths: Main > Setup > Module > Main Module > Module Contro l > Reset VFD # Main > Setup > Module > Expansion Module > Module Contr ol > Reset VFD # The Reset VFD optio n res ets t he var[...]

Operat ion: S et Up Modul e Contr ol Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 19 Reset c ompr ess ors Paths: Main > Setup > Module > Main Module > Module Control > Reset Compressors Main > Setu p > Module > Expansion Module > Module Control > Rese t Compre ssors The Reset Co mpre ssors option r es[...]

20 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting C o n t ro l t h e E n v i ro n m e n t The Syst em cont rols the room en vir onm ent by e nga ging one of f our mode s: Coo l, Dehu mid ify , Reheat, o r Humidify . T hese mo des may work d ifferently depending on the options and eq uipment installed in your Modules. How th e modes wo r[...]

Opera tion: Cont rol t he Envi ronment Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 21 Dehumi dify. Dehumi dify mode i s con tro lled by t he de hum idif y PI D co ntro lle r . T he PID co ntr olle r adjusts the output as required to m aintain the tempera ture at the setpoint. Humidify. The st eam cylind er hu mid ifie r outpu t i[...]

Operat ion: C ontr ol the Enviro nment 22 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Deadbands Path: Main > Contr ol Envir on ment > Deadbands The deadband is the sensitivity ran ge for a setpoint. I t is the value above o r below the setpoint at which the mode outputs at fu ll capacity . Accep table deadband ran ges include: [...]

Opera tion: Cont rol t he Envi ronment Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 23 PID c ontr ols Path: Main > Se tup > System # > Syst em Config > PID Control s The Proportional plus I ntegral plus Derivative ( PID) loop is used to co ntrol the output of the cool, rehe at, a nd de hum idif y modes . Choose which m[...]

Operat ion: C ontr ol the Enviro nment 24 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting H ow to tu n e th e PI Ds A qualified service tech nician must tu ne the PID lo ops to optimize the p erform ance of each mo de. The units shown are for temp erature. In the d ehumidify loop, th e units are in perc ent relative humidity (% RH). 1. S[...]

Opera tion: Cont rol t he Envi ronment Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 25 Hu mi difi cat ion sens itiv ity Path: Main > Se tup > System # > Syst em Config > H umid. Sensi tivity Humid. Sensit ivity. The humidifier sensitivity band is the p ercentage of relative h umidity below the humidify setpoint at whic[...]

26 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Set Up Alarms Set alarm s to alert y ou to abnormal temperatures or h umidity levels and the number of hours certain components have been in operation. A larms will also aler t you to malfunctions; however , malfunction alarm s are not user-definable. T emper atur e alarms Path: Main >[...]

Operat ion: S et Up Alarms Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 27 Maint interv als Path: Main > Setup > System # > Alarms > Maint Intervals The System recor ds the number of hour s each of the eight compo nents in each Module has o perated. Set the maintenance interval for each type of componen t in the Module[...]

28 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Set Up Gr o up Up to fo ur Network AIR Systems can be connected to form a redundant Group. Join ing Systems together to f orm a Group provides the f ollowing: • Red unda ncy • A way for other Sy stems in the Group to assist with the room load • Demand fightin g prevention (o ne Sys[...]

Operati on: Se t Up Group Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 29 Grp Sm oke Al rm . Share smoke alarm s among the Sy stems in this Gr oup. If the Group Smoke Alarm setting is On , all Systems in the Group will shut down if a smoke alarm o ccurs in one System. Comm Loss Failover . Decide if the Group conside rs a System in[...]

Operat ion: Se t Up Grou p 30 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Configure the list of System Failure Events . If a System failure event occurs, the System in whic h it occurs transitions to the failed state, and a backup System is en gaged if available. Event. Scroll through the list of possible failure ev ents. The first l[...]

Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 31 Set Up th e Displ ay Set display settings, including the time and date, temperature units, p asswords, and time-out settings. Y ou can also reset settings to their default values and download n ew firmware. Pass wor d & T ime- out Path: Main > S etup > System > Display &[...]

Oper ation : Set Up the Di splay 32 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Pre ssure units. Set the units of measure for pressure readings and settings to either English (psig) or metric (kPa). Adju st d i spla y Path: Main > Setup > System # > Display > Display A djust Set the LCD cont rast. Ad just the visibility o[...]

Operat ion: Set Up the Di splay Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 33 5. In y our terminal emulator, ensure that the connection is a ctive (HyperT er minal will display a series of “ C” characters ) and send the file using the XMODEM p rotocol. 6. When the download is co mplete, the screen d isplays the new versio n.[...]

34 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Set Up Netw ork Co nfiguratio n Configu re the network settin gs for Networ k Management Card from th e display interface. The management card allows for remote control and configuratio n of the NetworkAIR I R In-row Precision Air Conditioner. Ne twor k c onf ig Path: Main > Setup >[...]

Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 35 View St atu s Rea di ngs The display interface has s everal options fo r viewing the s tatus of the System, its Mo dules, and the environment being contro lled. The status readings for Modules are av ai lable under the M ain Module and Ex pansion Module # options, and status readin g[...]

Operat ion: View S tatus Reading s 36 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Abou t Modu le. V iew identifying information that is helpful when obtaining ser vice: •M a n u f a c t u r e r N a m e • Model Number • Date of M anufacture • Serial Number • Firmware R evision • Hardware Revi sion Humi di fi er St atus . V[...]

Opera tion: Vie w Statu s Readi ngs Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 37 Gr oup st atu s Path: Main > Status > Gr oup The Group Status screen includes info rmation ab out the member System s of the Gro up and their role s. Gr oup Statu s. V iew th e assigned role and curre nt state of each System in the Group Gr o[...]

38 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Respond to Alarms When an alar m is triggered, the M ain Module alerts you through the display by the following metho ds : • Alarm be eper • M ajor or Min or Ala rm LE D • Active alarm screen • Alarm/Event log Major or minor alarm LEDs When a n alarm is trigg ered, the Che ck Log[...]

Operat ion: Respon d to Al arms Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 39 Clear active alarm s Path: Main > Respond to Alar ms > Clear Ac tive Alarms Clears all active alar ms. If the conditions that caused the alarm still ex ist, those conditions cause th e alarm to be reg ener ated. • Clear System Alar ms — Clear[...]

Operat ion: Respo nd to Al arms 40 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Alarm me ssages and sugg ested actions Displayed Alarm Message Act ion Required Air Bloc k Inte rlock Open • V erify that the air b lock i s in pl ace. • Confi rm tha t the wi ring connect ions f or th e air block int erloc k are s ecure . Air Fil ter [...]

Operat ion: Respon d to Al arms Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 41 Cooli ng Coil Cool ant T emp High • Che ck the chilled water s upply t empera ture. • V erify t hat t he coil f luid coolan t tempe rature hi gh thr eshol d is no t set bel ow the n ormal t emperat ure of your c hill ed water su pply . Cooli ng Coi[...]

Operat ion: Respo nd to Al arms 42 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Env T emperatu re Low • V erify that no suppl y air is fed di rect ly back into the re turn a ir . • Ensur e tha t the ala rm dela y is no t set too lo w . The de lay sh ould be long enou gh to al low th e room te mper ature to st abilize afte r sta rt[...]

Operat ion: Respon d to Al arms Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 43 Humidi fier Cylinde r Deple ted • Rep lace t he dis posabl e cyli nder . • Cl ean the reusa ble hu midifi er cyl inder (o ptional). Humidi fier Cylinde r Full when Of f • Che ck the humid ifie r drai n valv e for cloggi ng. • Che ck the operat [...]

Operat ion: Respo nd to Al arms 44 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Remote Sen sor Adde d • Check the CAN bus connec tion to t he remot e sens ors. • Disr egard if you adde d the r emote s ensor . Replace St eam Cylin der • Repl ace th e stea m cylin der . • Clea n the ste am cyli nder ( if your Sys tem is equipp e[...]

Operat ion: Respon d to Al arms Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 45 Syst em Failu re • After corr ectin g the c ause of the sy stem f ailure, per form a Res et Syste m Fail ure co mmand ( Path : Main > Res pond to Al arms > Re set Sys Failur e ). Syst em Fire D ete cted • Foll ow the ap prop riate f acil ity [...]

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Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 47 Networ k Manage me nt Car d Quic k C onf igur ati on The NetworkAIR IR In-row Precision Air Conditioner is shipped with a Network Management Card that provides for the mana gement of the Air Conditioner over your network. Y o u must set up the Network Management Card in or der to con[...]

Network Manag ement Card: Quic k Configura tion 48 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting TCP/ IP co nf igu ratio n m eth ods Use one o f the following methods to define the TCP/IP settings needed by the Netw ork Management Card: • APC Device IP Co nfiguration W izard (See “APC Device IP Configuration Wizard” on pa ge 48.)[...]

Networ k Managemen t Card: Quick Con figurat ion Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 49 W ith Bo ot M ode set to DHCP & BOOTP (the default setting), the Network Management Card attempts to discover a properly configur ed server . It firs t searches for a BOOT P server , then a DHCP server , an d repeats this pattern u[...]

Network Manag ement Card: Quic k Configura tion 50 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting DHCP . Y ou can use a RFC2131/RFC 2132-compliant DHCP server to configure the T CP/IP settin gs for the Netw ork Ma nage ment Card. 1. A Network Manage ment Card sends out a DHCP request that uses the following to identify itself: – A V e[...]

Networ k Managemen t Card: Quick Con figurat ion Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 51 Local access to the con tr o l conso le Y ou can use a loc al computer that connects to th e NetworkAIR IR System th rough the serial port on the control board to access the control console. Whenever possible access the control pane l [...]

Network Manag ement Card: Quic k Configura tion 52 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Remo te access to t he control conso le Fr om an y co mpu ter on th e s ame subne t as t he N etwor k M anag eme nt Ca rd, you c an u se ARP an d Ping to ass ign an IP address to a Netwo rk Managem ent Card, an d then use T e lnet to access[...]

Networ k Managemen t Card: Quick Con figurat ion Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 53 TCP/IP settings, select the Boot Mod e menu. Select Manual bo ot mode , and then press E SC to return to the TCP/IP menu. (Chang es will take effect when you log out.) 4. Set the Sy stem IP , Subnet Mask, and Defa ult G ateway address [...]

54 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting How to Access a Configur ed Unit Overview After th e Network Ma nagement C ard is ru nning on your network, y ou can use the interfaces summarized here to access th e NetworkAIR IR In-row Precision Air Condition er. We b i n t e r f a c e As y our b rowser , y ou ca n use M icr osof t ®[...]

Network Management Card: How to Acc ess a Con figured Uni t Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 55 T elnet for basic access. T elnet p rovides the basic s ecurity of authentic ation by user n ame and password, but not the hi gh-security benefits of encryption. T o use T elnet to access a NetworkAI R IR In-row Precision Ai[...]

Network Management Card: How to Acce ss a Conf igure d Unit 56 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting FT P / S C P Y ou can use F TP (en abled by de fault) or Secure CoPy (S CP) to tra nsfer new firm ware t o the Ne twork Manager Card, or to access a copy o f the System’ s event logs. SCP p rovides the higher security of encry[...]

Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 57 How to Recover Fr om a Los t Passwor d Y ou can use a loc al computer , a co mputer that connects to th e Network Managem ent Card or other device thro ugh the serial port to acce ss the control conso le. 1. Select a serial por t at the local co mputer , and di sable any service that[...]

58 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting How to Upgrade Firmwar e For you to be able to use FTP to upgrade a single Network Management Card ove r the network: • The Net work M anag eme nt C ard mus t be conne cte d to th e net work. • The FTP ser ver must be en abled at the Network Management C ard. • The Network Man agem[...]

Networ k Managemen t Card: How to Upgrade Firmware Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 59 5. Up grade the AOS. For example: ftp> bin ftp> p ut apc_hw 02_aos_ 225 .bin 6. W hen FTP confirm s the tran sfer , type qu it to close the session. 7. W ait 20 seconds, and th en repeat step 2 through step 5 for the applicatio[...]

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Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 61 Maintenance Month ly P r eve ntive Mainte nance Photocopy and use the pages in this section during the maintena nce procedures and save them fo r future ref eren ce. Prep ared by: _ ____ _____ ____ ____ ____ ____ ____ ___ Mode l Num ber: ____ ____ _____ ____ ____ ____ ____ _ Seri al [...]

Main tenanc e: Monthly Prevent ive Mai ntena nce 62 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Cleanlines s * Check the co ndition of re turn air filters. Replace them if necessary . * Check the co ndition of the drain pan and remove any accu mulation of deb ris in the pan. Mec han ic al * Ensure tha t all componen ts of the ev apor[...]

Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 63 Qua rt erly P r eve ntiv e Ma inte nanc e Photocopy and u se the pages in this section during the maintena nce procedures, and save the m for future ref eren ce. Perform all the Monthly Preventive Maintenance items AND the ite ms below . Prep ared by: _ ____ _____ ____ ____ ____ ____[...]

Main tenanc e: Quarterly Prevent ive Mai ntena nce 64 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Functional tests * V erif y th e follo wing mode s of op eratio n: • Full co oling • Full reh eat • Humid ification • Dehum idification * V erify the o peration of these actuators: • Chilled water • Hot water reheat (option a[...]

Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 65 Sem i- Annu al Pr even tiv e Main tena nce Photocopy and use the pages in this section during the maintena nce procedures and save them fo r future ref eren ce. Perform all the Monthly/Quarte rly Preventive Maintenance items AND the items below . Prep ared by: _ ____ _____ ____ ____ [...]

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Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 67 Tr o u b l e s h o o t i n g R efrig er ation Problem Possible Cau se Correc tive Action Contr ols are e rrat ic or i nopera tive • I ncorre ct se condary volta ge. • Ensure that the co ntrol trans former second ary volt age is wit hin +/- 10% of 24 V AC. • Remote shut down inp[...]

Troubl eshoot ing: S emi-Annu al Prev entive M aint enance 68 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Airfl ow too high • Exte rnal sta tic p ressure m ay be t oo low . • Check the eva porat or coi l pres sure d rop th rough the displ ay inter face. Pr essur e should m atch th e rec ommended pr essur e drops indic ated o n th[...]

Troubl eshoot ing: Semi -Annual Pre venti ve Maint enance Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 69 hlj Proble m Po ss ibl e Cau se C orrect ive Ac tio n Humidifi er inop erati ve • W ater su pply i s not on . • El ectri cal c onnect ions a re loose . • Hum idif ier f use i s open. • Rel ativ e humi dity is abo ve th[...]

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Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 71 W a rranty Limite d Pr oduct W arra nty fo r APC P r oducts The limited warranty provided by American Power Conversion Corporation (“APC”) in this Statement of Limited Factory W arranty applies only to Products you purch ase for your commer cial or indus tria l use i n the or din[...]

Limit ed Produ ct Warra nty fo r APC Produ cts 72 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Assignment of warranties APC will assign to you an y warranties which are made by manufacturers and suppliers of componen ts of the APC Pro duct and which are assi gnable. Any such warranties are a ssigned “AS IS” an d AP C mak es no r e[...]

Limite d Produc t Warrant y for APC Produc ts Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 73 IN NO EVENT SHALL APC, I TS OFFICE RS, DIRECTORS, AFFIL IATES OR EMPLOYEES BE LI ABLE FOR ANY FORM OF INDIRECT , SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES ARISING OUT OF THE USE , SERVICE OR INSTALLATION OF THE PRODUCTS, WHETHER SUCH DAM[...]

74 NetworkAIR IR Opera tion, Maintenance, and Troubleshooting Wa r r a n t y P r o c e d u r e s Cla ims Y ou will need the m odel number of the Product, the serial number , and the d ate purchased. A technician will also ask you to describe the p roblem. If it is determined that the Product will need to be retur ned to APC you must ob tain a retur[...]

Warran ty Procedur es Netwo rkAIR IR Operation , Mainte nance, an d Troublesh ooting 75 Part s • APC warrants th e parts of th eir systems for 1 y ear from the da te of commissioning or 18 mo nths from the ship da te. This warranty o nly covers the cost of the part and not the labor for installation. • Calls for warranty parts r equests need to[...]

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*990-2260-001* APC W orldw ide Cust omer Suppo rt Cust omer s up port f or th is o r a ny oth er AP C pr oduct is avail ab le at no cha r ge i n an y of t he fol low ing ways: • V isit the APC W eb site to access documents in the APC Knowledge Base and to s ubmit customer supp ort re que sts. – www . apc.com (Corpo rate Headqu arters) Connect t[...]