Carrier Air Conditioner manual

Manufa cturer res erves the righ t to disc ontinue , or chan ge at any tim e, spec ification s or des igns wit hout not ice and wi thout i nc urring obligations. PC 903 Catalog No. 563-025 Printe d in U.S.A. Form 30 GTN-3T Pg 1 3-00 Replaces: 30GTN -2T Book 2 Ta b 5 c Controls Star t-Up , Oper ation, Ser vice , and T roub leshooting SAFETY CONSIDER[...]

2 CONTENTS (cont) Page • LEAD/LAG DETERMINA TION • CAP ACITY SEQUENCE DETERMINA TION • CAP ACITY CONTR OL OVERRIDES Head Pressur e Control . . . . . . . . . . . . . . . . . . . . . . . . . . 27 • COMF ORT LINK™ U NITS (W i th EXV) • UNITS W ITH TXV Pumpout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2[...]

3 Table 1A — Unit Sizes and Modular Combinations (30GTN,R) *60 Hz un its/50 H z units. Table 1B — Unit Sizes and Modular Combinations (30GUN,R) *60 Hz un its/50 H z units. MAJOR SYSTEM COMPONENTS General — The 30GTN,R and 30GUN,R air-cool ed recip- rocating chille rs contain the Comfort Link™ electronic control system that controls and m on[...]

4 Contr ol Module Comm unication RE D L E D — Proper operation of the control boards can be visually checked by looking at the red st atus LEDs (light- emitting diodes). When operating correctly , the red status LEDs should be blinking in unison at a rate of once every 2 seconds. If the red LEDs are not blinking in unison, verify that correct pow[...]

5 Table 3 — Statu s Swit ches LEGEND *The OPS ca n also be added as an access ory . †The CPCS can be add ed as an acces sory . Table 4 — Output Relay LEGEN D OFM — Outdoor-F an Motor *And asso ciate d modular uni ts. †Field-i nstalled accessory unloade r . LEGEND FOR FIG. 1-4 ST A TUS SWITCH PIN CONNECTION POINT 040-060 (5 0 Hz) 040-070 ([...]

6 Fig. 1 — Typical Control Box (080-110 and Associated Mo dular Units Shown)[...]

7 CCN LEN D ATA COMMUNICA TION PORT Fig. 2 — 24 V Co ntrol Sch ematic, Un it Sizes 040-070[...]

8 Fig. 3 — 2 4 V Contr ol Schematic , Unit S izes 080- 110, 230B- 315B CCN LEN D ATA COMMUNICA TION PORT / Fig. 3 — 24 V Cont rol Sche matic, Un it Sizes 080-110, 230B-315B[...]

9 CCN LEN D ATA COMMUNICA TION PORT Fig. 4 — 2 4 V Cont rol Schema tic, Unit Siz es 130-21 0, 230A-31 5A, 330A /B-420A/B[...]

10 CEPL130346-01 ST A TUS LEN J1 J2 J4 J3 J5 J6 J7 J8 J9 J10 CCN RED LED - ST A TUS GREEN LED - LEN (LOCAL EQUIPMENT NETWORK) YELLOW LED - CCN (CARRIER COMFORT NETWORK) INST ANCE JUMPER EMERGENCY ON/OFF SWITCH ENABLE/OFF/REMOTE CONT ACT SWITCH GFI-CONVENIENCE OUTLET ACCESSOR Y ON 208/230V 460 AND 575V ONL Y RESET BUTT ON (SIZES 130-210 AND ASSOCIA [...]

11 OPERA TING D A T A Sensors — The electronic control uses 4 to 10 thermi stors to sense temperatures for controlling chiller operation. See T able 2. These sensors are outlined below . See Fig. 7-10 for thermistor locations. Thermistors T1-T9 are 5 k Ω at 77 F (25 C). Thermistors T1, T2, T3-T 6 and T7-T9 ha ve different temperature versus res[...]

12 *When thermistor is viewed from perspective where the compressor is on the left and the cooler is on the right. Fig. 8 — Thermistor T3 and T4 Locations 040-070 080-110 AND ASSOCIA TED MODULAR UNITS* 130-210 AND ASSOCIA TED MODULAR UNITS*[...]

13 Fig. 9 — Compressor Thermistor Locations (T7 an d T8) LEGEND EXV — Electronic Exp ansion V alve Fig. 10 — Ty pical Thermistor L ocation (30G TN,R an d 30GUN,R 21 0, 315A, 390A, 420A/B S hown )[...]

14 T10 — REMOTE SP ACE TEMPERA TURE SENSOR — Sensor T10 (part no. HH51BX006) is an accessory sensor that is remotely mounted in the controlled space and used for space temperature reset. The sensor should be installed as a wall-mounted thermostat would be (in the conditioned spac e where it will not be subjected to either a cooling or heating s[...]

15 Thermostatic Expansion V alves (TXV) — Model 30GTN,R and 30GUN,R 040-1 10 units are available from the factory with conventional TXVs with liquid l ine solenoids. The liquid line solenoid valves are not intended to be a mechani cal shut-off. When s ervice is required, use the liquid line service valve to pump down the system. NOTE: This option[...]

16 Electr onic Expansion V alve (EXV) (See Fig. 15) — Standard units are equipped wit h a bottom seal EXV . This device eliminates t he use of the l iquid line solenoid pumpdown at un it shutdown. An O-ring has been added t o bot- tom o f orif ice a ssem bly to com plete a se al in the v alve on s hut- down. This is not a mechanical shut-of f. Wh[...]

17 The capacity control algorithm runs every 30 seconds. The algor ithm atte mpts to ma inta in th e lea ving c hill ed wa ter t e m- perature at the control point. Each time it runs, the control reads the entering and leaving fluid temperat ures. The control deter- mines the rate at which conditions are changing and calc ulates 2 variables based o[...]

18 Tab le 5 A — P art Load Data Per cent Displ acement, St andard Units *Unloaded compressor. NO TE: These capac ity control steps m ay v ary due to lag co mpressor sequen cing. UNIT 30GTN,R 30GUN,R CONTR OL STEPS LO ADING SEQUENCE A LO AD ING SEQUE NCE B % Displacement (App ro x) Compressors % Disp lacement (Appro x) Compressors 040 (60 Hz) 12 5[...]

19 Table 5A — Part Load Data Percent Displacement , Standard Units (cont) *Unloaded compressor. NO TE: These capac ity control steps m ay v ary due to lag co mpressor seque ncing. UNI T 30GTN,R 30GUN,R CONTR OL STEPS LO ADING SEQUENCE A LO AD ING SEQUE NCE B % Displacement (App ro x) Compressors % Disp lacement (Appro x) Compressors 100, 255B 270[...]

20 Table 5A — Part Load Data Percent Displacement , Standard Units (cont) *Unloaded compressor. NO TE: These capac ity control steps m ay v ary due to lag co mpressor sequen cing. UNITT 30GTN,R 30GUN,R CONTROL STEPS LO ADING SEQUENCE A LO ADING SEQUENCE B % Displacement (App ro x) Compressors % Displacement (Appr ox) Compressors 150, 230A, 245A, [...]

21 Table 5B — Part Load Data Pe rcent D isplacement , With Acc essory Un loaders *Unloaded compressor. † T wo unloaders, both unloaded. NO TE: Some control steps will be skipped if they do not increase chiller c apacity when staging up or decrease chiller c apacity when staging do wn. UNI T 30GTN,R 30GUN,R CONTR OL STEPS LO ADING SEQUENCE A LO [...]

22 Table 5B — Part Load Data Percent Di splacemen t, With Acce ssory Un loaders (cont) *Unloaded compress or . † T wo unloaders, both unloaded. NO TE: These capac ity control steps m ay v ary due to lag co mpressor sequen cing. UNIT 30GTN,R 30GUN,R CONTR OL STEPS LO ADING SEQUENCE A LO AD ING SEQUE NCE B % Displacement (App ro x) Compressors % [...]

23 Table 5B — Part L oad Data Per cent Dis placement, w ith Acc essory Unloa ders (co nt) *Unloaded compressor. T wo unloaders, both unloaded. NO TE: These capac ity control steps m ay v ary due to lag co mpressor seque ncing. UNI T 30GTN,R 30GUN,R CONTR OL STEPS LO ADING SEQUENCE A LO AD ING SEQUE NCE B % Displacement (App ro x) Compressors % Di[...]

24 Table 5B — Part Load Data Percent Di splacemen t, With Acce ssory Un loaders (cont) *Unloaded compress or . † T wo unloaders, both unloaded. NO TE: These capac ity control steps m ay v ary due to lag co mpressor sequen cing. UNIT 30GTN,R 30GUN,R CONTROL STEPS LO ADING SEQUENCE A LO ADING SEQUENCE B % Displacement (App ro x) Compressors % Dis[...]

25 Table 5B — Part Load Data Percent Di splacemen t, With Accessory Un loaders (cont) *Unloaded compress or . † T wo unloaders, both unloaded. NO TE: These capac ity control steps m ay v ary due to lag co mpressor seque ncing. UNIT 30GTN,R 30GUN,R CONTR OL STEPS LO ADING SEQUENCE A LO ADING SEQUENCE B % Displacement (Appro x) Compressors % Disp[...]

26 ADDING ADDITIONAL UNLOADERS — See T able 6 below for required hardw are. Follow accessory instructions for installation. Connect un- loader coi l lead s to PI NK wi res in co m pre ssor A 1 /B1 j u ncti on box. Configuration items CA.UN and CB.UN in the OP T1 sub-mode of the configuration m ode must be changed to mat ch the new number of unloa[...]

27 Low Cooler Suction T emperature — T o avoid freezing the cooler , the control will co mpare the circuit Cooler Suc tion tem- perature (T5/T 6) with a pr edetermined freeze point. If the cool- er fluid selected is W ater , the freeze point is 34 F (1.1 C). If the cooler fluid sele cted is Brine, the fre eze point is 8 ° F (4.4 ° C) below the [...]

28 *Control box. † F an numbers 11 and 12 do not apply to 30 GTN,R and 30G UN,R 130-170 and ass ociated modular units ( see T able 1). Fig. 18 — Condenser Fan Sequence F AN ARRANGEME NT FA N NO . F AN RELA Y NORMAL CONTROL 30GTN,R040-050 30GUN,R040-050 1 — Compresso r No. A1 2 — Compresso r No. B1 3 1 First Stage of Condenser F a ns 4 2 Sec[...]

29 Marquee Display Usage (See Fig. 1 9 and T ables 7- 25) — The Marquee display module provides the user in terfa ce to th e Comfort Link ™ control syst em. The dis- play has up and down arrow keys, an key , and an key . These keys are used to navigate through the di f- ferent levels of the display structure. See T able 7. Press the key until t[...]

30 Tab le 7 — Marquee Display M enu Structure LEGEND Ckt — Circuit RUN ST A TU S SER VICE TEST TEMPERA TURES PRESSURES SET POINTS INPUTS OUTPUTS CONFIGURA TION TIME CLOCK OPE RA TING MODES ALARMS Aut o Display (VIEW) Manual Mode On/Off (TEST) Unit T emper atures (UNIT) Ckt A Pressures (PRC .A) Cooling (COOL) Unit Discrete (GEN.I) Unit Discrete [...]

31 Tab le 8 — Run Status Mode and Sub-Mode Directory SUB-MODE KEYP AD ENTR Y ITEM RANGE I TEM EXP ANSION COMMENT VIEW EWT 0 - 100 F ( – 18 - 38 C) ENTERING FLUID TEMP LW T 0 - 100 F ( – 18 - 38 C) LE A VING FLUID TE MP SETP 0 - 100 F ( – 18 - 38 C) AC TIVE SETPOI NT CTPT 0 - 100 F ( – 18 - 38 C) CONTR OL POINT ST A T 0 - 7 CONT ROL MOD E [...]

32 Table 9 — Service Test Mode and Sub-Mode Directory LEGEND EXV — Electronic Ex pansion Valv e SUB-MODE KEYP AD ENTR Y ITEM RANGE ITEM EXP ANSION COMMENT TEST TEST OFF-ON SERVICE TEST MODE Use to Enable /Disable M anual Mod e OUTS LLS.A OPEN-CLSE LIQ. LINE SO LENOID V A L VE T XV units only EXV .A 0 - 100% EXV % O PEN LLS.B OPEN-CLSE LIQ. LINE[...]

33 Table 10 — Temperature Mode a nd Sub-Mode Directory Table 11 — Pressure Mode and Sub- Mode Directory Table 12 — Set Point Mode and Sub-Mode Dire ctory SUB-MODE KEYP AD ENTR Y ITEM RANGE ITEM EXP ANSION COMMENT UNIT CEWT – 40 - 245 F ( – 40 - 118 C) COOLER ENTERING FLUI D CL WT – 40 - 2 45 F ( – 40 - 118 C) COOLE R LEA VI NG FLUID O[...]

34 Table 13 — Reading and Changing Chilled Fluid Set Point Table 14 — Inputs Mode and Sub-Mode Directory SUB-MODE KEYP AD ENT R Y IT EM DISPLA Y RANGE ITEM EXP ANSION COMMENT COOL CSP .1 44.0 ° F – 20-70 F COOLING SETPOIN T 1 Default: 44 F 38-70 F Flud = 1 14-70 F Flud = 2 – 20-70 F Flud = 3 44.0 ° F – 20-70 F Scrolling stops 44.0 ° F [...]

35 Tab le 1 5 — Outputs Mode and Sub-M ode Directory LEGEN D Table 16 — Configuration Mode and Sub-Mode Directory LEGEN D SUB-MODE KEYP AD ENTR Y I TEM RANGE ITEM EXP ANSION COMM ENT GEN.O F AN1 OFF-ON F AN 1 RELA Y F AN2 OFF-ON F AN 2 RELA Y F AN3 OFF-ON F AN 3 RELA Y F AN4 OFF-ON F AN 4 RELA Y C. PMP OFF-ON COOLER PUMP REL A Y H.GAS OFF-ON HO[...]

36 Table 16 — Configuration Mode and Sub-M ode Directory (cont) LEGEN D SUB-MODE KEYP AD ENTRY ITEM MARQUEE DISPLA Y RANGE NA VIGA TO R DISPLA Y RANGE ITEM EXP AN SION COMMENT UNIT TYPE 1 - 5 AIR COOLED W A TE R COOLED SPL IT HEA T MACHINE HEA T RECLAIM UNIT TYPE Default: 1 1 = Air Cooled 2 = Water Coole d 3 = Split System 4 = Heat Machine 5 = He[...]

37 Table 16 — Configuration Mode and Sub-M ode Directory (cont) SUB-MODE KEYP AD ENTR Y IT EM MARQUEE DISPLA Y RANGE NA VIGA TOR DISPLA Y RANGE ITEM EX P ANSIO N COMME NT OPT2 (cont) BA UD 1 - 5 240 0 4800 9600 19,200 38,4 00 CCN BA UD RA TE Defau lt: 3 1 = 240 0 2 = 480 0 3 = 960 0 4 = 19,2 00 5 = 38,4 00 LOAD 1 - 2 EQU AL ST AGED LOADING SEQ U [...]

38 Table 16 — Configuration Mode and Sub-M ode Directory (cont) Table 17 — Example o f Temperat ure Reset ( Return Fl uid) Configu ration NO TE: The example above shows ho w to configure the chiller for temperature reset b ased on chiller retur n fluid. The chiller will be configured fo r no reset at a cooler ∆ T (EWT -L WT) of 1 0 F (5.6 C) [...]

39 Table 18A — Example of Configuring Dual Chiller Control (Master Chill er) Table 18B — Example of Configuring Dual Chiller Control (Slave Chiller) SUB-MODE KEYP AD ENTRY ITEM DISPLA Y IT EM EXP ANSION COMMENT RSET CRST 0 COOLING RESET TYPE LLD Y 5 LA G ST AR T DELA Y 5 Scrollin g stops 5 V alu e fla she s 10 Select 10 10 Change accept ed LLD [...]

40 Table 19 — Example of Compressor Lead/Lag Configuration NOTE: Options 1 an d/or 3 not valid for sizes 040-0 70 witho ut Circuit B acce ssor y unload er insta lled. Table 20 — Time Clock Mode and Sub-Mode Directory SUB-MODE KEYP AD ENTRY ITEM DISPL A Y ITEM EXP ANSION COMMENT OPT2 CTRL 0 CONTROL METHOD CCNA 1 CCNB 0 BA UD 3 LOAD 1 LLCS 1 LEAD[...]

41 Table 21 — Setting an Occupied Time Schedule Tab le 2 2 — Operating Mode and Sub-Mode Directory LEGEN D SUB-MODE KEYP AD ENTR Y ITEM DISPLA Y ITEM EXP ANSION COMMENT SCHD MON.O 00.00 MOND A Y O CCUPIED TIME TIME IN MILIT ARY FORMA T (HH.MM) 00.00 Scrollin g stops 00.00 Hours f lash 07.00 Selec t 7 AM 07.00 Change accept ed, minut es flash 07[...]

42 Table 23 — Operating Modes MODE NO. ITEM EXP ANSION DESCRIPTION 01 FSM CON TROLLING CHILLER Flotronic ™ System Manager (FSM) is controlling the chiller . 02 WSM CONTROLLING CHILLER Water System Manager (WSM) is controlling the chiller . 03 MASTER/SLA VE CONTROL Lead/Lag Chiller control is enabled. 04 LOW SOURCE PRO TECTION Not currently supp[...]

43 Table 24 — Alarms Mode and Sub-Mode Directory Table 25 — Example of Reading and Clearing Alarms T emperature Reset — The control system is capabl e of handling leaving-fluid temperature reset based on return cooler fluid temperature. Because the change i n t emperature through the cooler is a measure of th e building load , the return t em[...]

44 Table 26 — Configuring Tempera ture Reset The following are examples of outdoor air and space tem- perature resets: MODE KEYP AD ENTRY SUB-MODE KEYP AD ENTR Y ITEM DISP LA Y ITEM EXP ANSION COMMENT CONFIGURA TION DISP TE ST ON/OFF TEST DI SPLA Y LEDS UNIT TYPE UNIT TYPE OPT1 FLUD COOLER FLUID OPT2 C TRL CONTROL METHOD RSET CRST COOLIN G RESET [...]

45 Cooli ng Se t Point (4 t o 20 mA) — A field supplied and generated, externally powered 4 to 20 mA signal can be used to provide the leaving fluid te mperature set point. Connect the signal to TB6-3,5 (+, – ). See T able 27 for instructions to enable the function. Figure 22 shows how the 4 to 20 mA sig- nal is linearly calculated on an overal[...]

46 Demand Limit — Demand Li mit is a feature that allo ws the unit capacity to be limited during periods of peak energy usage. There are 3 types of demand limiting that can be confi g- ured. The first type is through 2-stage switch control, which will reduce the maximum capa city to 2 us er-configurable per- centages. The second type is by 4 to 2[...]

47 TROUBLESHOO TING Compressor Pr otection Control System (CPCS) Boar d — The compre ssor protection board con- trols the compres sor and compres sor crankcase he ater . The ground current protection is provided by the compres- sor board. The large relay located on the board is used to provide a feedback signal to the Ma in Base Board. The operat[...]

48 2. Make sure that thermi stor leads are connect ed to the proper pin terminals at the J5 connector on EXV board and that thermistor probes are located in proper position in the refrigerant circuit. When these checks have been complet ed, the actual opera- tion of the EXV can be che c ked by using the procedures out- lined in Step 5 — Check Ope[...]

49 Table 29 — Alarm and Alert Codes ALARM/ ALERT CODE ALARM OR ALERT DESCRIPTION WHY W AS THIS ALARM GENERA TED? A CT ION T AKEN BY CONTROL RESET METHOD PROB ABL E CA USE T051 Alert Circuit A, Comp ressor 1 F ailure Compresso r feedback signal does not m atch r elay state Circuit A shut down. Manual High -pressure or loss-of- charge switch ope n,[...]

50 Table 29 — Alar m and Ale rt Cod es (c ont) LEGEND *F reeze is defined as 34 ° F (1.1 C) for water . For brine fluids, freeze is CSP .1 – 8 ° F (4. 4 C) for single set point and lower of CSP .1 or CSP .2 – 8 ° F (4.4 C) f or dual set point configuration. ALARM/ ALER T CODE ALARM OR ALER T DESCRIPTION WHY WAS THIS ALARM GENERA TED? A CTI[...]

51 Table 29 — Alarm and Ale rt Codes (cont) ALARM/ ALER T CODE ALARM OR ALER T DESCRIPTION WHY WAS THIS ALARM GENERA TED? A CTION T AKEN BY CONTROL RESET METHOD PROB ABLE CA USE A150 Alarm Emergency Stop CCN emergency stop command received Chiller shutdown without going through pumpdown. Automatic once CCN command for EMSTOP retur ns to normal CC[...]

52 Table 29 — Alarm and Ale rt Codes (cont) LEGEND *F reeze is defined as 34 ° F (1.1 C) for water . For brine fluids, freeze is CSP .1 – 8 ° F (4. 4 C) for single set point and lower of CSP .1 or CSP .2 – 8 ° F (4.4 C) for dual set point configuration. NO TE: The follo wing table shows illegal configurations: ALARM/ ALER T CODE ALARM OR A[...]

53 SER VICE Electr onic Components CONTROL COMPONENTS — Unit uses an advanced e lec- tronic control system that normally doe s not require service. For details on controls refe r to Operating Da ta section. 30GTN,R AND 30GUN,R 040-1 10, AND 230B-315B UNIT CONTROL BOX — When facing compressors, main control box is at left end of unit. All incomi[...]

54 7. Remove t he liquid lines by breaking the silver-soldered joints at the cool er liquid line nozzle s. 8. On 30GTN,GTR and 30GUN,R 080-110 and 230B-315B units, remove the vertica l support(s) under the condenser coil in front of the cooler . Provide t emporary support as needed . Save a ll screws for reinstal lation later . 9. Remove the screws[...]

55 T ube Plugging — A leaky tube can be plugged until retubing can be done. The number of tubes plugged determines how soon cooler must be retubed. T ubes plugged in the following locations will affect the performance of the unit: Any tube in the area, particul arly the t ube th at t hermist or T2 is adjacent t o, will affect unit reliability and[...]

56 3. Apply torque in one-third steps until required torque is reached. Load all bolts to each one -third step before pro- ceeding to next one-third step. 4. No less than one hour later , retighten all bolts to requi red torque values. 5. Aft er refrigera nt is restored to system, chec k for refriger- ant leaks with soap solution or Halide devi ce.[...]

57 Envir o-Shield™ Coil Cleaner Application Equipment • 2 1 / 2 Gallon Garden Sprayer • W ater Rinse with Low V elocity Spray Nozzle Envir o-Shield Coil Cleaner Application Instruction s • Althou gh Envir o-Shield Coil cleaner is harmless to humans, animals, and marine life, proper eye pr otection such as safety glasses is recommended durin[...]

58 Refrigerant Feed Components — Each circuit has all necessary refriger ant controls. ELECTRONIC EXP AN SION V AL VE (EXV) — A cut- away view of valve is shown in Fig. 30. High-pressure liquid refrigerant enters valve through bot- tom. A series of calibrated slots have been machined in side of orifice assembly . As refrigerant passes t hrough [...]

59 The rmis tors — Elect ronic control uses 4 to 10 ther- mistors to sense temperatures used to control the operation of chil ler . Thermistors T1-T9 vary in their temperature vs resistance and voltage drop performance . Thermistor T10 is a 10 k Ω i n- put channel and has a different set of temperature vs resistance and voltage drop performance[...]

60 Table 32A — 5K Th ermistor Temp erature (F) vs Res istance/Vo ltage V OL T AGE DR OP A FOR THERMIST ORS T1, T2, T7-T9 V OL T AGE DROP B FOR THERMIST ORS T3-T6 TEM P (F) VO LT AG E DROP A (V) VO LT AG E DROP B (V) RESIST ANCE (Ohms) – 25 3.699 4. 538 98,010 – 24 3.689 4. 523 94,707 – 23 3.679 4. 508 91,522 – 22 3.668 4. 493 88,449 – 2[...]

61 Table 32B — 5K Thermistor Temperature (C) vs Resistance/Voltage (c ont) V OL T AGE DR O P A FOR THERMIST ORS T1, T2, T7-T9 V OL T AGE DROP B FOR THERMIST ORS T3-T6 TEM P (C) VO LT AG E DROP A (V) VO LT AG E DROP B (V) RESIST ANCE (Ohms) – 32 3.705 4. 547 100,260 – 31 3.687 4. 520 94,165 – 30 3.668 4. 493 88,480 – 29 3.649 4. 464 83,170[...]

62 Table 33 A — 10K Thermistor Temperatures ( ° F) vs Resist ance/Vol tage Drop (For Thermistor T10) TEMP (F) VO LT AG E DROP (V) RESIST ANCE (Ohm s) – 25 4.758 1 96,4 53 – 24 4.750 1 89,6 92 – 23 4.741 1 83,3 00 – 22 4.733 1 77,0 00 – 21 4.724 1 71,0 79 – 20 4.715 1 65,2 38 – 19 4.705 1 59,7 17 – 18 4.696 1 54,3 44 – 17 4.686 [...]

63 Table 33B — 10K Thermis tor Temper atures ( ° C) vs Resist ance/Volt age Drop (For Thermistor T10) TEMP (C) VO LT AG E DROP (V) RESIST ANCE (Ohm s) – 32 4.762 2 00,5 10 – 31 4.748 1 88,3 40 – 30 4.733 1 77,0 00 – 29 4.716 1 66,3 42 – 28 4.700 1 56,4 04 – 27 4.682 1 47,1 34 – 26 4.663 1 38,4 82 – 25 4.644 1 30,4 02 – 24 4.624[...]

64 Safety De vices — Chillers contain many safety devices and protection logic built into electronic control. Following is a brief summary of major safet ies. COMPRESSOR PRO TECTION Circuit Breaker — O ne manual-reset, cal ibrated-trip magne tic circuit breaker for each compressor protects against overcur- rent. Do not bypass or increase size o[...]

65 Relief De vices — Fusible pl ugs are located in each ci r- cuit to protect against dam age from excessi ve pressures. HIGH-SIDE PROTECTION — One device i s located between condenser and filter drier; a second is on filter drier . These are both designed to relieve pr essure on a temperatur e rise to approximately 210 F (99 C). LOW-SIDE PROTE[...]

66 ST AR T - UP AND OPERA TION NOTE: Refer to Start-Up Checklist on pa ges CL-1 to CL-8. Actu al S tar t- Up — Actual start-up should be done only under supervision of a qualified r efrigeration mechanic. 1. Be sure all service valves are open. Units are shipped from facto ry with suctio n, dischar ge, and liquid line service valves closed. 2. Us[...]

67 Consult application data section in the Product Da t a litera- ture and job design requirements to determin e flow rate re- quirements for a particular inst allation. Tab le 3 6 — Nominal and Minimum Cooler Fluid Flow Rates LEGEN D *Nominal flow rates r equired at ARI co nditio ns are 44 F (6. 7 C) le aving-fluid temperatur e, 54 F ( 12.2 C) e[...]

68 LEGEND FOR FIG. 36-41 ALM — Alarm CWFS — Chilled Wat er Flow Switch CWP — Chilled Water Pump CWPI — Chilled Water Pump Interlock CXB — Compres sor Expansion Board HGBPS — Hot Gas Bypass S witch LW T — Leaving Fluid T emperature MBB — Main Base Board OA T — Ou tdoor-Air T emperature Sensor SPT — Remote Space T em perature Sens[...]

69 VIO BLK 4 3 2 J10B PLUG MBB 15 16 17 18 19 K8 K7 5 6 TB5 10 TB5 BLK 11 12 TB5 12 TB5 ALM R CWP R MAX LOAD-75V A SEALED 360V A INRUSH MAX LOAD-75V A SEALED 360V A INRUSH 12 1 1 1 0 98765432 1 1 1 1 0 98765432 1 14 13 12 EMM, PLUG J6 EMM, PLUG J7 TB6 3 2 5 1 PNK ORN BRN VIO 1 2 1 1 1 0 987654321 1 4 1 3 1 2 1 1 1 0 987654 3 21 TB6 15 14 13 12 10 9[...]

70 1 2 3 4 1 2 3 4 5 6 7 8 5 6 7 8 4 3 2 1 4 3 2 1 GND BLK WHT RED UL-A2 UL-B2 24V 1 15V/ 230V CXB ACCESSORY CXB ACCESSORY J4 J6 CXB BOARD Fig. 41 — Compressor Expansion Board (CXB) Ac cessory Wiring[...]

71 APPENDIX A — CCN T ABLES UNIT (Configuration Settings) OPTIONS1 (Options Configura tion) *Unit size dependent. DESCRIPTION ST A TUS DEF AUL T UNITS POINT 1 Unit T ype 1 = Air Cooled 2 = Wat er Cooled 3 = Split System 4 = Heat Machine 5 = Air Cooled Heat Reclaim 1 UNIT_TYP 2 Unit Siz e 20 to 300 * TONS SIZE 3 Circuit A1% C apacity 0 to 100 * % [...]

72 APPENDIX A — CCN T ABLES (cont) CONFIGURATION SCREEN (TYPE 10) OPTIONS2 (Options Configura tion) DISPLAY (STDU SETUP) SCHEDOVR (TIMED OVERRIDE SETUP) ALARMDEF (Alarm Definiti on Table) *Unit size dependent. DESCRIPTION ST A TUS DEF A UL T UNITS POINT 1 Control Method 0 = Switch 1 = 7 day sched. 2 = Oc cupancy 3 = CCN 0 CONTR OL 2 Loading Seque[...]

73 APPENDIX A — CCN T ABLES (cont) RESETCON (Temperature Reset and Demand Limit) BRODEFS (Broadcast POC Definition Table ) DESCRIPTION ST A TUS DEF A UL T UNITS POINT 1 COOLING RESET 2 Cooling Reset T ype 0 = No Reset 1 = 4-20 ma input 2 = External temp -OA T 3 = Return fl uid 4 = External temp -SPT 0 CRST_TYP 3 No Cool Reset T emp 0 to 125 125.0[...]

74 APPENDIX A — CCN T ABLES (cont) A_UNIT (General Unit Para meters) CIRCA_AN (Circuit A Anal og Parameters) CIRCA_DIO (Circuit A Discrete Pa rameters) DESCRIPTION ST A TUS UNITS POINT FORCEABLE 1 Control Mode 0 = Ser vice 1 = OFF - local 2 = OFF-CCN 3 = OFF-time 4 = Emergenc y 5 = ON-local 6 = ON-CCN 7 = ON-time ST A T N 2 Occupied Y es/No OCC N[...]

75 APPENDIX A — CCN T ABLES (cont) CIRCB_AN (Circuit B Anal og Parameters) CIRCBDIO (Circui t B Discrete Parameters) DESCRIPTION ST A TUS UNITS POINT FORCEABLE 1 Circuit B Analog V alues 2 P er cent T otal Capacity 0-100 % CAPB_T N 3 P er cent Av ailable Cap 0-100 % CAPB_A N 4 Discharge Pressure nnn.n P SI DP_B N 5 Suction Pressur e nnn.n PSI SP_[...]

76 APPENDIX A — CCN T ABLES (cont) OPTIONS ( Unit Parame ters) DESCRIPTION ST A TUS UN ITS POINT FORCEAB LE 1 FA N S 2 F an 1 Relay ON/OFF F AN_1 N 3 F an 2 Relay ON/OFF F AN_2 N 4 F an 3 Relay ON/OFF F AN_3 N 5 F an 4 Relay ON/OFF F AN_4 N 6 7 UNIT ANA LOG V ALU ES 8 Cooler Entering Fluid snnn.n ° F COOL_EWT N 9 Cooler Leaving Fluid snnn.n ° F[...]

77 APPENDIX A — CCN T ABLES (cont) STRTHOUR ALARMS NO TE: A lerts will display ed as Txxx. DESCRIPTION ST A TUS UNITS POINT 1 Machine Operating Hours nnnnn hours HR_M ACH 2 Machine Star ts nnnnn CY_MACH 3 4 Circuit A Run Hours nnnnn hours HR_CIRA 5 Compressor A1 Hours nnnnn hours HR_A1 6 Compressor A2 Hours nnnnn hours HR_A2 7 Compressor A3 Hours[...]

78 APPENDIX A — CCN T ABLES (cont) CURRMODS SETPO INT LOADFACT VERSI ONS DESCRIPTION ST A TUS UNITS POINT 1 FSM controlling chiller ON/OFF MODE_1 2 WSM controlling chiller ON/OFF MODE_2 3 Master/Sla ve co ntrol ON/OFF MODE_3 4 Low source protection ON/OFF MODE_4 5 Ramp Load Limited ON/OFF MODE_5 6 Timed Over ride in eff ect ON/OFF MODE_6 7 Low Co[...]

79 APPENDIX A — CCN T ABLES (cont) CSM/FSM EQUIPMENT TABLE (Type 621H, Bl ock 2) WSM EQUIPMENT PAR T COOL SOURCE MAI NTENANCE TABLE SUPERVISOR MAINTENANCE TABLE OCCUPANCY MAIN TENANCE TABLE OCCUPANCY SUPERVISORY LINE DESCRIPTION POINT 1 Chiller Status 0 = Chiller is off 1 = V alid run state in CCN mode 2 = Recycle activ e 3 = Chiller is in Local [...]

80 APPENDIX B — FLUID DROP PRESSURE CUR VES Cooler Fluid Pressure Drop Curves — 30GUN,GUR040-11 0 ENGLISH AND SI LEGEND NOT E: Ft of wat er = 2.31 x change in psig. — 040 — 045,050[...]

81 APPENDIX B — FLUID DROP PRESSURE CUR VES (cont) Cooler Fluid Pressure Dro p Curves — 3 0GUN,GUR130-210 ENGLISH SI COOL ER PR ESSURE DROP KEY 1 — 30GUN,GUR130,150 2 — 30GUN,GUR170,190 3 — 30GUN,GUR210 NO TE: Ft of water = 2. 31 x change in psig.[...]

82 APPENDIX B — FLUID DROP PRESSURE CUR VES (cont) Cooler Fluid Pressure Drop Curves — 30GUN,GUR230A-2 55A, 270A/B- 420A/B ENGLISH SI COOLER PRES SURE DROP KEY 1 Module B — 30 GUN,GUR270 2 Module A — 30 GUN,GUR230-255 3 Module A — 30 GUN,GUR270,330 Module B — 30GUN,GUR330,360 (50 Hz) 4 Module A — 30 GUN,GUR290,315,360 (50 or 60 Hz), 3[...]

83 APPENDIX B — FLUID DROP PRESSURE CUR VES (cont) Cooler Fluid Pressure Drop Curves — 30GUN,GUR230B-3 15B ENGLISH AND SI COOLER PRES SURE DROP KEY 1 Module B — 30GUN,GUR230,245 2 Module B — 30GUN,GUR255,290,315 NOT E: Ft of wat er = 2.31 x change in psig.[...]

84 APPENDIX B — FLUID DROP PRESSURE CUR VES (cont) Cooler Flui d Pressur e Drop Curv es — 30GTN,GTR0 40-11 0 ENGLISH AND SI LEGEND NOT E: Ft of wat er = 2.31 x change in psig. — 040 — 045,050[...]

85 APPENDIX B — FLUID DROP PRESSURE CUR VES (cont) Cooler Fluid Pressure Drop Curves — 30GTN,GTR13 0-210 ENGLISH SI COOL ER PR ESSURE DROP KEY 1 — 30GTN,GTR130,150 2 — 30GTN,GTR170,190 3 — 30GTN,GTR210 NO TE: Ft of water = 2. 31 x change in psig.[...]

86 APPENDIX B — FLUID DROP PRESSURE CUR VES (cont) Cooler Fluid Pressure Drop Curves — 30GTN,GTR230A- 420A, 270B, 330B -420B ENGLISH SI COOLER PRES SURE DROP KEY 1 Module B — 30 GTN,GTR270 2 Module A — 30 GTN,GTR230-255 3 Module A — 30 GTN,GTR270,330 Module B — 30GTN,GTR330,360 (50 Hz) 4 Module A — 30 GTN,GTR290,315,360 (50 or 60 Hz),[...]

87 APPENDIX B — FLUID DROP PRESSURE CUR VES (cont) Cooler Fluid Pressure Drop Curves — 3 0GTN,GTR230 B, 245B, 255B, 290B, 3 15B ENGLISH AND SI COOLER PRES SURE DROP KEY 1 Module B — 30GTN,GTR230,245 2 Module B — 30GTN,GTR255,290,315 NOT E: Ft of wat er = 2.31 x change in psig.[...]

Manufa cturer res erves the righ t to disc ontinue , or chan ge at any tim e, spec ifications or des igns wi thout not ice and wi thout i nc urring obligations. PC 903 Catalo g No. 563-025 Pr inted in U.S .A. F or m 30GTN-3 T Pg 88 3- 00 Rep laces: 30 GTN-2T Book 2 Ta b 5 c Copyright 2 000 Car rier Cor porati on SER VICE TRAINING Packaged Servi ce [...]

Manufa cturer res erves the righ t to disc ontinue , or chan ge at any tim e, spec ification s or des igns wit hout not ice and wi thout i nc urring obligations. PC 903 Cata log No. 563-0 25 P rint ed in U.S.A. Form 30G TN-3T Pg CL-1 3 -00 Replaces: 30 GTN-2T Book 2 Ta b 5 c CUT ALONG DO TTED LINE CUT ALONG DO TTED LINE - - - - - - - - - - - - - - [...]

CL-2 B. Preliminary Equipment Check ( Chec k box if co mplete ) IS THER E ANY SH IPPING D AMA GE? IF SO, WHERE _________ _______ ______ ______ __________ _______ ______ ______ __________ _______ ______ _________ WILL TH IS D AMA GE PREVENT UNI T ST ART -UP? HA VE COMPRES SOR BASE RAIL ISOLA T ORS ALL BEEN PR OPERL Y ADJUSTED ? CHECK POWER SUPPL Y .[...]

CL-3 CUT ALONG DO TTED LINE CUT ALONG DO TTED LINE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -[...]

CL-4 C. Unit Start-Up ( cont) UNIT (Configuration Settings) PRESS ESCAPE KEY T O DISP LA Y ‘ UNIT ’ . PRES S DOWN ARRO W KEY T O D ISP LA Y ‘ OPT 1 ’ . PRESS ENTER KEY . RECORD CONFIGURA TION INFORMA TION B ELO W: OPTIONS1 (Options Configura tion) ITEM DESCRIPTION ST A TUS UNITS V ALUE TYPE U nit T ype 1 = A ir Cooled 2 = W ater Cooled 3 = [...]

CL-5 CUT ALONG DO TTED LINE CUT ALONG DO TTED LINE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -[...]

CL-6 C. Unit Start-Up ( cont) PRESS ESCAPE KEY T O DISP LA Y ‘ RSET ’ . PR ESS DO WN ARR OW K EY T O DISPL A Y ‘ SLCT ’ . PRESS ENTER KEY . RECORD CONFIGURA TION INFORMA TION BELOW: SLCT (Heating Cooling Setpoint Selec t) PRESS ESCAPE KEY SE VERAL TIMES T O GET T O THE MODE LEVEL (BLANK D ISPLA Y). USE THE ARR OW KEYS TO S CR OLL T O THE SE[...]

CL-7 CUT ALONG DO TTED LINE CUT ALONG DO TTED LINE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -[...]

Manufa cturer res erves the righ t to disc ontinue , or chan ge at any tim e, spec ifications or des igns wi thout not ice and wi thout i nc urring obligations. PC 903 Catal og No. 563-025 Print ed in U.S.A. Form 30 GTN-3T Pg CL-8 3-00 Rep laces: 30 GTN-2T Book 2 Ta b 5 c Copyright 2 000 Car rier Cor porati on All Units: MEASURE THE FOLLOWING (MEAS[...]