Daikin Trailblazer AGZ030-101E Installation, Operation And Maintenance Manual Download

Page: 66 / 124

IOM 1206-13 • TRAILBLAZER

MODEL AGZ CHILLERS

66 www.DaikinApplied.com

Sequence of Operation

Figure 60: Unit Sequence of Operation - Ice Mode

Is unit enabled?

Is flow present?

Yes

Evaporator pump output on

Unit power up

Unit in Off state

The chiller may be disabled via the unit switch, the remote switch, the keypad

enable setting, or the BAS network. In addition, the chiller will be disabled if all

circuits are disabled, or if there is a unit alarm. If the chiller is disabled, the unit

status display will reflect this and also show why it is disabled.

If the chiller is enabled, then the unit will be in the Auto state and the evaporator

water pump output will be activated.

Yes

Is low ambient lockout

active?

The chiller will then wait for the flow switch to close, during which time the unit

status will be Auto:Wait for flow.

If the unit switch is off, the unit status will be Off:Unit Switch. If the chiller is

disabled due to network command, the unit status will be Off:BAS Disable. When

the remote switch is open, the unit status will be Off:Remote Switch. When a unit

alarm is active, the unit status will be Off:Unit Alarm. In cases where no circuits

are enabled, the unit status will be Off:All Cir Disabled. If the unit is disabled via

the Chiller Enable set point, the unit status will be Off:Keypad Disable.

Yes

Is Ice Mode Start Delay

expired?

Wait for chilled water loop to

recirculate.

Low ambient lockout will prevent the chiller from starting even if it is otherwise

enabled. When this lockout is disabling the chiller, the unit status will be Off:Low

OAT Lock.

A delay is required between Ice cycles.

After establishing flow, the chiller will wait some time to allow the chilled water loop

to recirculate for an accurate reading of the leaving water temperature. The unit

status during this time is Auto:Evap Recirc.

Summary of Contents for Trailblazer AGZ030-101E

Page 1: ...Trailblazer Air Cooled Scroll Compressor Chillers With High Efficiency Variable Speed Fan Technology Model AGZ E Vintage 30 to 241 Tons 100 to 840 kW HFC 410A Refrigerant 50 60 Hz IOM 1206 13 Group Chiller Part Number IOM1206 13 Date September 2020 ...

Page 2: ...on 5 Refrigerant Schematics 18 Dimensions and Weights Packaged Units 24 Dimensions and Weights Heat recovery Units 32 Refrigerant Charge 38 Isolator Information 39 Pressure Drop Data 43 Electrical Data 47 Unit Controller Operation 52 Sequence of Operation 63 Unit Functions 70 Circuit Functions 80 Alarms 89 Using the Controller 95 Fan VFD Controller 98 Startup and Shutdown Procedures 103 Unit Maint...

Page 3: ...re startup Oil heaters energized at least 12 hours before startup Chiller components EXV Sensors Transducers installed and wired properly Wiring complies with National Electrical Code and local codes See Notes Remote EXV wired with shielded cable Miscellaneous Yes No N A Initials Unit control switches all off Remote Evaporator Condenser Piping factory reviewed All refrigerant components piping lea...

Page 4: ......

Page 5: ... power is applied to the panel CAUTION When moving refrigerant to from the chiller using an auxiliary tank a grounding strap must be used An electrical charge builds when halo carbon refrigerant travels in a rubber hose A grounding strap must be used between the auxiliary refrigerant tank and the chiller s end sheet earth ground which will safely take the charge to the ground Damage to sensitive e...

Page 6: ...t fluid temperature 100 F 38 C Nameplates Identification nameplates on the chiller The unit nameplate is located on the exterior of the Unit Power Panel Both the Model No and Serial No are located on the unit nameplate the Serial No is unique to the unit These numbers should be used to identify the unit for service parts or warranty questions This plate also has the unit refrigerant charge and ele...

Page 7: ...nal Drawings beginning on page 24 All compressor bolts rubber grommets and fasteners should be left in place on the base plate as shown in Figure 2 None of these fasteners are considered to be temporary shipping bolts Figure 2 Compresssor Base Plate Mounting Service Clearance The control panels are located on the end of the chiller and require a minimum of four feet of clearance in front of the pa...

Page 8: ...n One Side of Unit NOTE Assumes a solid height wall taller than unit Refer to Case 4 for partial wall openings For models AGZ030 101E maintain a 4 feet minimum from a wall of any height For models AGZ110 130E maintain a 6 feet minimum from a wall of any height For models AGZ140 241E maintain a 8 feet minimum from a wall of any height Figure 4 Building or Wall on One Side of Unit Case 2 Two Units S...

Page 9: ...the wall opening percentage is less than recommended for the distance to the unit it should be considered as a solid wall It is assumed that the wall height is equal to or less than the unit height when mounted on its base support If the wall height is greater than the unit height see Case 5 Pit Installation for performance adjustment factors The distance from the sides of the unit to the side wal...

Page 10: ...for models AGZ030 070E show adjustment factors for pit wall heights of 4 feet 5 feet and 6 feet Figure 12 Case 5 Full Load Capacity Reduction AGZ030E 070E Figure 13 Case 5 Power Increase AGZ030 070E Figure 14 Case 5 Pit Installation Models AGZ075 130E The Case 5 figures for models AGZ075 130E show adjustment factors for pit wall heights of 5 feet 6 feet and 8 feet Figure 15 Case 5 Full Load Capaci...

Page 11: ...0 0 8 10 12 13 14 Capacity Reduction Depth of Pit Wall Height ft Full Load Capacity Reduction AGZ140 180E Distance 6 ft Distance 8 ft Distance 10 ft 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 0 8 10 12 13 14 Capacity Reduction Depth of Pit Wall Height ft Full Load Capacity Reduction AGZ191 241E Distance 6 ft Distance 8 ft Distance 10 ft 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 0 8 10 12 13 14 Power Increase D...

Page 12: ...egulating valve to maintain water pressure matching mechanical connections All evaporators have OGS type grooved water connections adhering to Standard AWWA C606 or optional flange connections PVC piping should not be used WARNING Polyolester Oil commonly known as POE oil is a synthetic oil used in many refrigeration systems and is present in this Daikin product POE oil if ever in contact with PVC...

Page 13: ... temperature drop Flow rates above the maximum values will result in unacceptable pressure drops and can cause excessive erosion potentially leading to failure The minimum flow and pressure drop is based on a full load evaporator temperature drop of 16 F Evaporator flow rates below the minimum values can result in laminar flow causing low pressure alarms scaling and poor temperature control Variab...

Page 14: ...tection it does not protect water piping external to the unit or the evaporator itself if there is a power failure or heater burnout or if the chiller is unable to control the chilled water pumps Use one of the following recommendations for additional freeze protection 1 If the unit will not be operated during the winter drain the evaporator and chilled water piping and flush with glycol 2 Add a g...

Page 15: ...erant suction pressure will be lower cooling performance less and water side pressure drop will be higher The reduction in performance depends upon the glycol concentration and temperature Test coolant with a clean accurate glycol refractometer to determine the freezing point CAUTION The installed glycol level must align with the rated glycol percentage indicated on the submitted chiller technical...

Page 16: ...er water piping for modulation of flow through the heat exchangers by the unit controller Heat recovery water loop pump must also be controlled by the chiller controller a cleanable strainer with perforations no larger than 0 063 1 6 mm diameter must be installed within 5 feet 1500 mm of pipe length from the heat exchanger inlet and downstream of any welded connections see Figure 22 for pressure d...

Page 17: ... Coils NOTE 1 Non corrosive environments may be estimated by the appearance of existing equipment in the immediate area where the chiller is to be placed 2 Marine environments should take into consideration proximity to the shore as well as prevailing wind direction 3 Industrial contaminants may be general or localized based on the immediate source of contamination i e diesel fumes due to proximit...

Page 18: ...VE OPTIONAL SUCTION TUBING SCHRADER VALVE DISCHARGE TUBING AIR FLOW AIR FLOW AIR FLOW CONDENSER ASSEMBLY SCROLL COMPRESSOR TANDEM CHARGING VALVE SCHRADER VALVE SUCTION TEMP SENSOR ST1 ST2 SUCTION TRANSDUCER WL1 WL2 DISCHARGE TRANSDUCER WH1 WH2 SCHRADER VALVE SCHRADER VALVE HOT GAS BYPASS TUBING OPTIONAL HGBP VALVE SOLENOID VALVE ACCESS FITTING DISCHARGE SHUT OFF VALVE OPTIONAL DISCHARGE HIGH PRESS...

Page 19: ...ON TRANSDUCER WL1 WL2 DISCHARGE TRANSDUCER WH1 WH2 SCHRADER VALVE SCHRADER VALVE HOT GAS BYPASS TUBING OPTIONAL HGBP VALVE SOLENOID VALVE ACCESS FITTING DISCHARGE SHUT OFF VALVE WITH SCHRADER VALVE SCHRADER VALVE SCHRADER VALVE FUSIBLE PLUG WATER IN WATER OUT PLATE TYPE EVAPORATOR LEAVING WATER TEMP SENSOR FLOW SENSOR OPTIONAL WYE STRAINER REQUIRED FACTORY OR FIELD INSTALLED OIL SIGHT GLASS OIL HE...

Page 20: ...CTION TEMP SENSOR ST1 ST2 SUCTION TRANSDUCER WL1 WL2 DISCHARGE TRANSDUCER WH1 WH2 SCHRADER VALVE SCHRADER VALVE HOT GAS BYPASS TUBING OPTIONAL HGBP VALVE SOLENOID VALVE ACCESS FITTING DISCHARGE SHUT OFF VALVE WITH SCHRADER VALVE SCHRADER VALVE SCHRADER VALVE FUSIBLE PLUG WATER IN WATER OUT PLATE TYPE EVAPORATOR LEAVING WATER TEMP SENSOR FLOW SENSOR OPTIONAL WYE STRAINER REQUIRED FACTORY OR FIELD I...

Page 21: ...TION TEMP SENSOR ST1 ST2 SUCTION TRANSDUCER WL1 WL2 DISCHARGE TRANSDUCER WH1 WH2 SCHRADER VALVE SCHRADER VALVE HOT GAS BYPASS TUBING OPTIONAL HGBP VALVE SOLENOID VALVE ACCESS FITTING DISCHARGE SHUT OFF VALVE WITH SCHRADER VALVE SCHRADER VALVE SCHRADER VALVE FUSIBLE PLUG WATER IN WATER OUT PLATE TYPE EVAPORATOR LEAVING WATER TEMP SENSOR FLOW SENSOR OPTIONAL WYE STRAINER REQUIRED FACTORY OR FIELD IN...

Page 22: ...VALVE OPTION SUCTION TUBING DISCHARGE TUBING AIR FLOW AIR FLOW CONDENSER ASSEMBLY SCROLL COMPRESSOR TRIO CHARGING VALVE SUCTION TEMP SENSOR ST1 ST2 SUCTION PRESSURE TRANSDUCER WL1 WL2 DISCHARGE PRESSURE TRANSDUCER WH1 WH2 SCHRADER VALVE SCHRADER VALVE HOT GAS BYPASS TUBING OPTIONAL HGBP VALVE SOLENOID VALVE DISCHARGE SHUT OFF VALVE WITH SCHRADER VALVE DISCHARGE HIGH PRESSURE SWITCH FUSIBLE PLUG WA...

Page 23: ...NDENSER ASSEMBLY SENSOR MICROCHANNEL ALUMINUM COIL WITH HEAT RECOVERY ENTERING WATER FOR PROPER LOCATION 2 PLACES AGZ075 241E PACKAGE CHILLER NOTES PIPING SHOWN FOR ONE SYSTEM OF UNIT 1 UNITS HAVE TWO INDEPENDENT SYSTEMS HEAT RECOVERY WATER INLET OUTLET FROM FIELD 2 INSTALLED REMOTE PUMP AND WATER CIRCUIT DISCHARGE GAS FROM THE COMPRESSOR ALWAYS 3 PASSES THROUGH THE HEAT EXCHANGER BEFORE GOING TO ...

Page 24: ... MOUNTING HOLE LOCATIONS ON BOTTOM SURFACE OF UNIT BASE M3 M1 M2 M4 L4 L2 L1 L3 COMPRESSORS CIRCUIT 2 COMPRESSORS CIRCUIT 1 L1 L4 LIFTING LOCATIONS TOP VIEW WITH COILS AND FANS REMOVED SHIPPING WEIGHT OPERATING WEIGHT LBS KG LBS KG L1 L2 L3 L4 M1 M2 M3 M4 AGZ030E 2947 1337 2960 1343 1011 459 799 362 635 288 502 228 980 445 775 352 673 305 532 241 AGZ035E 2873 1303 2887 1310 1051 477 861 391 528 24...

Page 25: ...82 PACKAGE UNITS WITH MICROCHANNEL COILS UNIT MODEL CG LOCATION IN MM SHIPPING WEIGHT OPERATING WEIGHT LBS KG LBS KG L1 L2 L3 L4 M1 M2 M3 M4 AGZ040E 2948 1337 2964 1345 1067 484 881 400 548 249 453 206 1022 464 844 383 601 273 496 225 AGZ045E 3094 1403 3112 1412 1051 477 832 377 676 307 535 243 1021 463 809 367 715 324 567 257 AGZ050E 3093 1403 3114 1413 1049 476 837 380 671 304 536 243 1020 463 8...

Page 26: ...IOM 1206 13 TRAILBLAZER MODEL AGZ CHILLERS 26 www DaikinApplied com Dimensions and Weights Packaged Units Figure 34 AGZ075E AGZ101E 6 Fan Models ...

Page 27: ...CONNECTIONS QTY 3 6 5 165 6 9 175 11 5 292 LIFTING BRACKETS 2 5 64 DIMENSION DOES NOT INCLUDE 98 6 2506 92 7 2355 213 8 4 2235 88 0 64 2 5 0A 334547121 OUTLET L1 L4 LOCATIONS WATER INLET OPTION EVAP REQUIRED L1 L2 FIELD INSTALLED L4 FACTORY OR LIFTING WATER L3 EVAP WYE STRAINER 1 192 1 4879 39 2 996 6 0 153 11 4 290 37 1 5 609 24 0 858 33 8 SHIPPING WEIGHT OPERATING WEIGHT LBS KG LBS KG L1 L2 L3 L...

Page 28: ...ENSION DOES NOT INCLUDE 88 0 2235 11 5 292 6 9 2 5 64 2506 98 6 92 7 175 2355 213 8 4 64 2 5 TOP VIEW WITH COILS AND FANS M5 M1 M4 ISOLATOR MOUNTING HOLE LOCATIONS ON BOTTOM SURFACE OF UNIT BASE M1 L1 M3 L3 M2 L2 L4 CIR 1 M4 REMOVED M6 COMPR COMPR CIR 2 19 750 QTY 6 2433 95 8 B 67 4 1711 A w o STRAINER OPTION 61 6 1564 52 2 0 2 0 315 12 4 52 1118 44 0 SHIPPING WEIGHT OPERATING WEIGHT LBS KG LBS KG...

Page 29: ...VAP L2 L1 L4 L3 OUTLET L1 L4 WATER EVAP FACTORY OR FIELD LOCATIONS LIFTING WYE STRAINER INSTALLED OPTION 1 210 8 3 1 5 37 24 0 609 75 5 1919 237 2 6025 11 4 290 858 33 8 M1 M4 ISOLATOR MOUNTING HOLE LOCATIONS ON BOTTOM SURFACE OF UNIT BASE M1 L1 M3 L3 M5 M2 L2 M4 L4 M6 COMPR TOP VIEW WITH CIR 2 REMOVED COILS AND FANS COMPR CIR 1 52 2 0 B 2 0 52 12 4 315 95 8 2433 61 6 1564 67 4 1711 QTY 6 750 19 A...

Page 30: ...711 67 4 2 0 52 3577 140 8 w o STRAINER OPTION L6 L1 CG OUTLET WATER L4 L5 INLET L2 EVAP L3 WATER 1 75 5 1919 7171 282 3 12 1 308 923 36 3 2436 95 9 86 9 2207 609 24 0 1 5 37 3167 124 7 334547153 CONTROL BOX CG 1 64 11 5 2 5 2 5 292 64 CONNECTIONS FIELD CONTROL 22 92 7 2355 213 8 4 2235 88 0 DIMENSION DOES NOT INCLUDE LIFTING BRACKETS 165 6 5 6 9 KNOCKOUTS 875 175 22 875 KNOCKOUTS POWER ENTRY POIN...

Page 31: ...INCLUDE LIFTING BRACKETS DIMENSION DOES NOT 88 0 2235 6 5 165 6 9 175 8 4 213 92 7 2355 64 2 5 COMPRESSORS CIRCUIT 2 M2 L6 M8 COMPRESSORS L1 L8 M4 L2 ISOLATOR MOUNTING HOLE LOCATIONS ARE ON BOTTOM SURFACE OF UNIT M1 M3 L3 M5 L5 L7 M7 CIRCUIT 1 L4 M6 152 Ø6 0 VICTAULIC CONN TYP 1711 67 4 12 4 315 129 2 3281 1118 44 0 43 8 1114 QTY 8 95 8 2433 2743 108 0 75 19 52 2 0 52 2 0 4617 181 8 w o STRAINER O...

Page 32: ...206 13 TRAILBLAZER MODEL AGZ CHILLERS 32 www DaikinApplied com Dimensions and Weights Heat recovery Units Dimensions and Weights Heat recovery Units Figure 40 AGZ075E AGZ101E Heat Recovery Units 6 Fan Models ...

Page 33: ...0 2 0 1118 44 0 C L FOR ALL WATER B 334547122 NOTE LIFTING WEIGHTS ARE BASED ON UNIT SHIPPING WEIGHTS MOUNTING WEIGHTS ARE BASED ON UNIT OPERATING WEIGHT WITH EVAPORATOR WATER INCLUDED SHIPPING AND OPERATING WEIGHTS DO NOT INCLUDE THE WEIGHTS OF ANY OPTIONS OR ACCESSORIES NOTE HEAT RECOVERY WATER CONNECTIONS 1 FOR CIRCUIT 1 2 ARE CONNECTED WITH A TEE AND HAVE ONE INLET ONE OUTLET CONNECTION SIZES ...

Page 34: ...Y 3 165 64 2 5 8 4 213 LIFTING BRACKETS DIMENSION DOES NOT INCLUDE 88 0 2235 2506 98 6 92 7 2355 292 11 5 M1 M4 ISOLATOR MOUNTING HOLE LOCATIONS ON BOTTOM SURFACE OF UNIT BASE M1 L1 M3 L3 M5 M2 L2 M4 L4 M6 HEAT RECOVERY FREEZE PROTECTION TOP VIEW WITH COILS AND FANS REMOVED COMPR CIR 1 RECOVERY FIELD POWER ENTRY CIRCUIT 2 HEAT HEAT RECOVERY CIRCUIT 1 COMPR CIR 2 3 750 19 QTY 6 A w o STRAINER OPTIO...

Page 35: ...DISCH FREEZE PROTECTION CIR 1 HR OUTLET WATER CIR 2 HR INLET BACK OF UNIT HEAT RECOVERY DETAIL 1 JUNCTION BOX REF 1196 47 1 1118 44 0 REF 519 20 4 REF HEAT M1 M4 ISOLATOR MOUNTING HOLE LOCATIONS ON BOTTOM SURFACE OF UNIT BASE M1 L1 M3 L3 M5 M2 L2 M4 RECOVERY HEAT RECOVERY L4 CIRCUIT 1 RECOVERY M6 TOP VIEW WITH FREEZE PROTECTION COMPR REMOVED COILS AND FANS HEAT FIELD POWER ENTRY CIR 1 CIRCUIT 2 CI...

Page 36: ...AIN POWER ENTRY AT THE 2 CONTROL BOX FOR WIRE SIZES LARGER THAN 350 MCM CIRCUIT 1 COMPRESSORS M1 M2 L2 L1 L4 L3 L5 CIRCUIT 2 L6 M3 M5 M7 M6 M8 ISOLATOR MOUNTING HOLE LOCATIONS ARE ON BOTTOM SURFACE OF UNIT M4 COMPRESSORS REMOVED AND FANS CIRCUIT 2 HEAT RECOVERY WITH COILS TOP VIEW CIRCUIT 1 HEAT RECOVERY CONN TYP 152 FIELD POWER ENTRY FREEZE PROTECTION HEAT RECOVERY VICTAULIC Ø6 0 3 52 2 0 12 4 31...

Page 37: ... OUTLET 2 519 20 4 47 1 2 0 50 4207 165 6 1196 12 1 308 37 1 5 86 9 2207 1375 54 1 1919 75 5 609 24 0 8317 327 4 2207 86 9 923 36 3 334547144 M2 FIELD POWER ENTRY COMPRESSORS L6 CIRCUIT 2 HEAT RECOVERY ISOLATOR MOUNTING HOLE LOCATIONS ARE ON BOTTOM SURFACE OF UNIT M1 L1 M3 L3 M5 L5 L7 L4 HEAT RECOVERY VICTAULIC CONN TYP M7 M6 CIRCUIT 1 L8 L2 M8 CIRCUIT 2 COMPRESSORS M4 HEAT RECOVERY CIRCUIT 1 152 ...

Page 38: ...9 5 060E 23 10 5 23 10 5 21 9 5 21 9 5 065E 23 10 5 23 10 5 21 9 5 21 9 5 070E 23 10 5 23 10 5 21 9 5 21 9 5 075E 46 20 9 46 20 9 49 22 49 22 076E 43 19 6 43 19 6 46 20 9 46 20 9 080E 46 20 9 46 20 9 49 22 49 22 081E 43 19 6 43 19 6 46 20 9 46 20 9 090E 48 21 8 48 21 8 51 23 51 23 091E 45 20 5 45 20 5 48 21 8 48 21 8 100E 48 21 8 50 22 7 52 24 52 24 101E 45 20 5 47 21 4 48 21 8 50 22 7 110E 64 29 ...

Page 39: ...mounted at the defined mounting point locations along the full rail width Mounting locations for each model can be found in the Dimensions and Weights Packaged Units section of this document starting on page 24 Optional seismic isolator information begins on page 41 Contact a Daikin Applied sales representative for isolator information related to units with other fin materials Table 5 Isolator Kit...

Page 40: ...een 100 101 Brown Brown Brown Brown Dark Green Dark Green Dark Green Dark Green 110 Red Red Brown Brown Brown Brown Dark Green Dark Green Dark Purple Dark Purple Red Red 120 Red Red Brown Brown Brown Brown Gray Gray Dark Purple Dark Purple Red Red 130 Red Red Brown Brown Brown Brown Gray Gray Dark Purple Dark Purple Red Red 140 Red Red Brown Brown Brown Brown Dark Green Dark Green Dark Green Dark ...

Page 41: ...Brown Brown Dark Green Dark Green Dark Purple Dark Purple Red Red 120 Red Red Brown Brown Brown Brown Dark Green Dark Green Dark Purple Dark Purple Red Red 130 Red Red Brown Brown Brown Brown Dark Green Dark Green Dark Purple Dark Purple Red Red 140 Red Red Brown Brown Brown Brown Dark Green Dark Green Dark Green Dark Green Dark Green Dark Green 150 Red Red Brown Brown Brown Brown Dark Green Dark ...

Page 42: ...203 2 8 00 101 6 4 00 2 00 50 8 4 00 101 6 AGZ E Model Packaged Unit Microchannel Fins Neoprene Pads Spring Isolators 030 065 334549001 334548801 070 334549001 334548802 075 080 334549001 334548805 090 100 334549002 334548806 110 130 334549003 334548807 140 180 334549003 334548808 191 211 334549004 334548809 226 241 334549004 334548810 AGZ E Model Neoprene Pads Spring Isolators M1 M2 M3 M4 M5 M6 M...

Page 43: ...er to data table on following page A B C D E F G H I J K L M N 0 10 20 30 40 50 60 10 60 110 160 210 260 310 360 410 Differential Pressure ft Flow Rate gpm A B C D E F G H I J K L M N Q P R S T O U W X V Y Z AA BB CC 0 5 10 15 20 25 30 35 40 10 110 210 310 410 510 610 710 810 910 Differential Pressure ft Flow Rate gpm O P Q R S T U V W X Y Z AA BB CC ...

Page 44: ... 259 2 45 5 16 4 135 8 J 075E 71 2 1 3 4 5 3 8 111 3 3 0 7 0 8 9 178 1 7 3 11 2 21 8 296 9 19 3 18 7 57 8 K 076E 72 3 1 8 4 6 5 4 113 0 4 2 7 1 12 7 180 7 10 5 11 4 31 4 301 3 28 5 19 0 85 1 L 080E 75 5 1 1 4 8 3 2 117 9 3 0 7 4 8 9 188 6 7 7 11 9 23 0 314 5 21 1 19 8 63 1 M 081E 76 8 2 2 4 8 6 7 120 0 4 6 7 6 13 8 192 0 10 2 12 1 30 5 320 1 25 3 20 2 75 5 N 090E 83 3 1 4 5 3 4 1 130 2 3 6 8 2 10 ...

Page 45: ...ial Pressure ft Flow Rate gpm Minimum Flow Nominal Flow Maximum Flow Ref Unit Model GPM Dp ft l s DP kpa GPM Dp ft l s DP kpa GPM Dp ft l s DP kpa 1 AGZ075 076 21 0 8 1 3 2 3 42 2 7 2 7 8 1 120 18 0 7 6 53 8 AGZ080 081 AGZ090 091 2 AGZ100 101 30 1 1 1 9 3 2 60 3 2 3 8 9 6 132 18 0 8 3 53 8 AGZ110 AGZ120 3 AGZ130 40 1 1 2 5 3 3 80 3 7 5 0 11 1 195 18 0 12 3 53 8 AGZ140 4 AGZ150 46 1 2 2 9 3 7 92 4 ...

Page 46: ... Strainer Pressure Drop with Heat Recovery 2 Strainer NOTE Refer to additional data and graph on page 13 Flow gpm Pr Drop ft 40 0 0 3 60 0 0 7 100 0 2 0 150 0 4 3 300 0 16 1 Flow gpm Pr Drop ft 50 0 0 3 100 0 1 0 200 0 3 5 300 0 8 1 400 0 16 1 Flow gpm Pr Drop ft 100 0 0 4 200 0 1 4 300 0 2 8 400 0 5 1 500 0 7 8 600 0 11 5 700 0 16 1 Flow gpm Pr Drop ft 200 0 0 3 300 0 0 7 400 0 1 3 500 0 1 9 600 ...

Page 47: ...ircuit breaker 7 All field wire lug range values given unit selection report apply to 75 C rated wire per NEC 8 Must be electrically grounded according to national and local electrical codes DANGER Disconnect lockout and tag all power to the unit before servicing condenser fan motors or compressors Failure to do so can cause bodily injury or death CAUTION A static discharge while handling circuit ...

Page 48: ...U 15A for 1 5 KVA 30A for 3 0KVA BY OTHERS 301A 301 299 ABR 555A IF EXTERNAL ALARM EVENT IS USED REMOVE LEAD 555A FROM TERM TB2 45 TO TB2 67 N 24 VAC FIELD WIRING DIAGRAM WITH MICROTECH CONTROLLER ALARM BELL RELAY 120VAC 1 0AMP MAX EARTH GROUND ABR 24VAC 0 4AMP MAX FU5 Notes 1 ALL FIELD WIRING TO BE INSTALLED AS NEC CLASS 1 WIRING SYSTEM WITH CONDUCTOR RATED 600 VOLTS 2 IF FIELD SUPPLIED CONTROL P...

Page 49: ... FIELD WIRING DIAGRAM WITH MICROTECH CONTROLLER EARTH GROUND ABR NO COM BELL ALARM BELL RELAY ALARM BELL OPTION 1 2 EXTERNAL ALARM EVENT ABR 24VAC 0 4AMP MAX TB2 TB2 43 83 TB2 TB2 45 67 555A IF EXTERNAL ALARM EVENT IS USED REMOVE LEAD 555A FROM TERM TB2 45 TO TB2 67 N 24 VAC Notes 1 ALL FIELD WIRING TO BE INSTALLED AS NEC CLASS 1 WIRING SYSTEM WITH CONDUCTOR RATED 600 VOLTS 2 IF FIELD SUPPLIED CON...

Page 50: ... OTHERS 301A 301 299 FIELD WIRING DIAGRAM WITH MICROTECH CONTROLLER ALARM BELL RELAY 120VAC 1 0AMP MAX EARTH GROUND ABR NO COM BELL ALARM BELL RELAY UNIT ALARM 1 2 EXTERNAL ALARM EVENT ABR 24VAC 0 4AMP MAX TB2 TB2 43 83 TB2 TB2 45 67 555A N 24 VAC IF EXTERNAL ALARM EVENT IS USED REMOVE LEAD 555A FROM TERM TB2 45 TO TB2 67 FU5 TO FROM BAS CUSTOMER CONNECTION REF CONNECT TO GROUND AT ONE END ONLY BA...

Page 51: ...0 VAC TB1 TB1 34 32A IF REMOTE STOP CONTROL IS USED REMOVE LEAD 585 FROM TERM TB2 52 TO TB2 72 DOUBLE SET POINT MODE SWITCH BY OTHERS TIME CLOCK OFF MANUAL ON AUTO TIME CLOCK OFF MANUAL ON AUTO REMOTE STOP SWITCH BY OTHERS ALARM BELL OPTION ALARM BELL RELAY 120VAC 1 0AMP MAX ABR 71 TB2 70 TB2 69 TB2 68 TB2 4 20MA FOR DEMAND LIMIT BY OTHERS 4 20MA FOR EVAP LWT RESET BY OTHERS TO FROM BAS CUSTOMER C...

Page 52: ...be retained in memory and can be easily displayed in plain English for operator review The MicroTech III chiller controller will also retain and display the date time the fault occurred In addition to displaying alarm diagnostics the MicroTech III chiller controller also provides the operator with a warning of limit pre alarm conditions System Architecture The overall controls architecture uses th...

Page 53: ... 300k Ω X2 Circuit 1 Evaporator Press Voltage 0 4 to 4 6 volts X4 Circuit 1 Condenser Press Voltage 0 4 to 4 6 volts X3 Heat Recovery EWT NTC 10k 340 to 300k Ω X5 Heat Recovery LWT NTC 10k 340 to 300k Ω Table 25 Digital Inputs Description Signal Off Signal On X6 Circuit 1 Switch Circuit Disable Circuit Enable X7 Circuit 1 MHP Switch Fault No fault X8 Circuit 1 Motor Protection Fault No fault DI1 C...

Page 54: ...ls both the digital outputs and analog speed signals will be labeled according to which fans are connected to each one The following tables show the fans connected to each output for each configuration Table 34 AGZ E Models without VFDs Output Descr Physical Output Number of Fans 4 6 8 10 12 14 Circuit 1 Speed 1 UC X5 Speed 2 UC X2 Fan Output 1 UC DO3 Fan 11 Fan 11 Fan 11 Fan 11 Fan 11 Fan 11 13 F...

Page 55: ...Table 36 AGZ E Models with 2 VFDs per Circuit Output Descr Physical Output Number of Fans 6 8 10 12 14 Circuit 1 Speed 1 UC X5 Fan 11 Fan 11 13 Fan 11 13 Fan 11 13 Fan 11 13 Speed 2 UC X2 Fan 12 13 Fan 12 14 Fan 12 14 Fan 12 14 15 16 Fan 12 14 15 16 Fan Output 1 UC DO3 Fan Output 2 UC DO4 Fan Output 3 UC DO5 Fan Output 4 UC DO6 Fan Output 5 EEXV1 DO1 Fan 15 Fan 17 Circuit 2 Speed 1 UC X6 Fan 21 Fa...

Page 56: ...ntrol Cool LWT 1 7 C 44 6 F See Dynamic Set Point Ranges Cool LWT 2 7 C 44 6 F See Dynamic Set Point Ranges Ice LWT 4 4 C 39 9 F 9 5 to 4 4 C 14 9 to 39 9 F Startup Delta T 5 6 C 10 1 F 0 6 to 8 3 C 1 1 to 14 9 F Shut Down Delta T 0 3 C 0 5 F 0 3 to 1 7 C 0 5 to 3 1 F Stage Up Delay 240 sec 120 to 480 sec Stage Down Delay 30 sec 20 to 60 sec Stage Delay Clear No No Yes Max Pulldown Rate 0 6 C min ...

Page 57: ... 0 to 5 0 C 9 0 to 9 0 F Circuit Configuration Timers applies to both circuits Compressor Start to Start Time Delay 15 min 10 60 minutes Compressor Stop to Start Time Delay 5 min 3 20 minutes Clear Cycle Timers No No yes Alarm and Limit Settings Units Evaporator Water Freeze 2 2 C 36 F See Dynamic Set Point Ranges Evaporator Flow Proof 5 sec 5 to 15 sec Evaporator Recirculate Timeout 3 min 1 to 10...

Page 58: ...C to 40 C 0 F to 72 F Design Full Load Efficiency 0 0 to 100 Design IPLV 0 0 to 100 Design Rated Capacity 0 tons 0 to 1000 tons Table 45 Administration and Service Support Description Default Range Unit G O Number Enter Data Alphanumeric string of up to 16 characters Unit Serial Number Enter Data Alphanumeric string of up to 20 characters Next Maintenance Month January January through December Nex...

Page 59: ...econds 0 to 6553 4 seconds BACnet Module Name Alphanumeric string up to 15 characters long BACnet Module Dev Instance 0 0 to 4194302 BACnet Module Unit Support English Metric English BACnet Module NC Dev 1 0 0 to 42949672 BACnet Module NC Dev 2 0 0 to 42949672 BACnet Module Reset Out of Service Done Done False True BACnet IP Module UDP Port 0 0 to 65535 BACnet IP Module DHCP Off Off On BACnet IP M...

Page 60: ...2 to 46 12 C 90 to 115 F Heat Recovery Cond Target 67 37 78 C 100 F 32 22 to 46 12 C 90 to 115 F Heat Recovery Cond Target 50 40 56 C 105 F 32 22 to 43 34 C 90 to 110 F Heat Recovery Cond Target 33 37 78 C 100 F 32 22 to 40 56 C 90 to 105 F VFD Max Speed 100 90 to 110 VFD Min Speed 25 25 to 60 Fan Stage Up Deadband 1 See Dynamic Set Point Ranges See Dynamic Set Point Ranges Fan Stage Up Deadband 2...

Page 61: ... Target 33 Circuit Capacity 32 22 C 90 F 32 22 to 40 56 C 90 to 105 F Fan Stage Up Deadband 1 11 11 C 20 F 11 11 to 13 89 C 20 to 25 F Fan Stage Up Deadband 2 8 33 C 15 F 8 33 to 11 11 C 15 to 20 F Fan Stage Up Deadband 3 5 56 C 10 F 5 56 to 8 33 C 10 to 15 F Fan Stage Up Deadband 4 5 56 C 10 F 5 56 to 8 33 C 10 to 15 F Fan Stage Down Deadband 4 5 56 C 10 F 3 33 to 5 56 C 6 to 10 F Fan Stage Down ...

Page 62: ...80 F 23 89 to 29 44 C 75 to 85 F Fan Stage Up Deadband 1 5 56 C 10 F 2 78 to 8 33 C 5 to 15 F Fan Stage Up Deadband 2 2 78 C 5 F 2 78 to 5 56 C 5 to 10 F Fan Stage Up Deadband 3 2 78 C 5 F 2 78 to 5 56 C 5 to 10 F Fan Stage Down Deadband 4 2 78 C 5 F 2 78 to 5 56 C 5 to 10 F Fan Stage Down Deadband 3 2 78 C 5 F 2 78 to 5 56 C 5 to 10 F Fan Stage Down Deadband 2 2 78 C 5 F 2 78 to 5 56 C 5 to 10 F ...

Page 63: ...sable When the remote switch is open the unit status will be Off Remote Switch When a unit alarm is active the unit status will be Off Unit Alarm In cases where no circuits are enabled the unit status will be Off All Cir Disabled If the unit is disabled via the Chiller Enable set point the unit status will be Off Keypad Disable Yes No Is low ambient lockout active After establishing flow the chill...

Page 64: ...rcuit is not running it will be started now The unit will try to keep the load balanced between circuits as the unit capacity is increased The unit capacity can be increased if the LWT is above the stage up temperature No Is there enough load to start chiller If both circuits are running then additional compressors will start based on the sequencing logic Keep pump output on while chiller is enabl...

Page 65: ... unit capacity is too much The load has been satisfied when the LWT drops below the shutdown temperature At this time the only running circuit can shut down Yes Decrease unit capacity All circuits off The unit capacity can be decreasedif the LWTis below the stage down temperature Compressors will shut off as needed in the order determined by sequencing logic Has the stage down Yes time delay expir...

Page 66: ... Auto Wait for flow If the unit switch is off the unit status will be Off Unit Switch If the chiller is disabled due to network command the unit status will be Off BAS Disable When the remote switch is open the unit status will be Off Remote Switch When a unit alarm is active the unit status will be Off Unit Alarm In cases where no circuits are enabled the unit status will be Off All Cir Disabled ...

Page 67: ...s point Is fluid temp high No enough to start Keep pump output on while chiller is enabled and either running or ready to run Yes No The chiller is now ready to start if enough load is present If the LWT is not higher than the startup temperature the unit status will be Auto Wait for load If the LWT is higher than the startup temperature the unit status will be Auto A circuit can start at this tim...

Page 68: ...ltaneously When all circuits have completed shutdown the unit will remain in the off state until the start conditions are satisfied again Ice building is complete when LWT is less than the Active Setpoint Increase unit capacity If the second circuit is not running it will be started now The unit will try to keep the load balanced between circuits as the unit capacity is increased If both circuits ...

Page 69: ...needs to start and issue a start command to the next circuit to start based on sequencing rules Yes No Is last compressor commanded to Pumpdown circuit Run circuit Is pumpdown complete No The first compressor will be started and the fans solenoid valves and other devices will be controlled as needed The normal circuit status at this time will be Run Normal Additional compressors will be started as...

Page 70: ...e set point Full Capacity Evaporator Delta T the calculations of the control band for variable flow applications are explained in terms of delta T also The term Effective Full Capacity Delta T means the approximate temperature delta that would be observed with the unit running at full capacity for the given flow Nominal flow means the flow that is needed for a 5 56 C 10 F delta T at full unit capa...

Page 71: ... The Control Source Set Point determines where a command to change modes will come from A digital input switches between cool mode and ice mode if they are available and the control source is set to local The BAS mode request switches between cool mode and ice mode if they are both available and the control source is set to network The Available Modes Set Point should only be changeable when the u...

Page 72: ...oes not shut down or lock out For chillers without condenser fan VFD s there is no configuration and the chiller will always operate according to the first option shown above Descriptions of the operation for each option are in the following sections Lockout and Stop Operation When the chiller is configured for lockout and stop it will operate as described in this section If the OAT drops below th...

Page 73: ...pdown 17 Auto Max Pulldown Rate Unit State Auto max pulldown rate has been met or exceeded 18 Auto Unit Cap Limit Unit State Auto unit capacity limit has been met or exceeded 19 Auto High Amb Limit Unit State Auto and high ambient capacity limit is active 20 Auto RapidRestore Unit State Auto and unit is performing RapidRestore operation 21 Off Cond Type Not Set Condenser type setting is set to Not...

Page 74: ...nnot be established in the evaporator start state or if flow is lost in the evaporator run state Auto Control If auto pump control is selected the primary standby logic above is still used When the evaporator is not in the run state the run hours of the pumps will be compared The pump with the least hours will be designated as the primary at this time LWT Target The LWT Target varies based on sett...

Page 75: ...s which compressor is the next one to start or stop In general compressors with fewer starts will normally start first and compressors with more run hours will normally stop first If possible circuits will be balanced in stage If a circuit is unavailable for any reason the other circuit shall be allowed to stage all compressors on When staging down one compressor on each circuit shall be left on u...

Page 76: ...ll not be stopped as a result of exceeding the maximum pulldown rate High Ambient Limit On units configured with single point power connections the maximum load amps could be exceeded at high ambient temperatures If the power connection is single point and the outdoor air temperature OAT is greater than 46 6 C 115 9 F the high ambient limit becomes active This limit will be removed when the OAT dr...

Page 77: ...full capacity as soon as possible Backup Chiller Operation If the Backup Chiller input DI2 on the RapidRestore module has a signal and the unit has RapidRestore enabled then the chiller is considered a backup chiller When a backup chiller is enabled it will use an evaporator recirculation time of 13 seconds regardless of what the evaporator recirculation time set point is Then fast loading will be...

Page 78: ...C Heat Recovery EWT 60 C Heat Recovery LWT Heat Recovery EWT 1 11 C 2 F At least two compressors running on the unit T3 On to Off ANY of the following are required Heat Recovery Request input off OAT Min OAT for 3 minutes Active Evap LWT target 4 44 C Heat Recovery EWT 15 56 C or Heat Recovery EWT 60 C Heat Recovery LWT Cond Sat Temp 1 11 C on any running circuit Heat Recovery EWT sensor fault act...

Page 79: ...overy Position Speed signal is determined by PID loop Circuits continue to use heat recovery condenser targets PID Loop A PID loop will be used for controlling valve position or pump speed This loop should allow for a smooth transition from Recirculate to On control states meaning that when output control is handed off to the PID there isn t a sudden large change in the position speed from the min...

Page 80: ...pressor is enabled to start according to enable setpoints Compressor Availability A compressor is considered available to start if all the following are true The corresponding circuit is enabled The corresponding circuit is not in pumpdown No cycle timers are active for the compressor No limit events are active for the corresponding circuit The compressor is enabled via the enable setpoints The co...

Page 81: ...will not attempt to restart until the Restart alarm has been cleared The restart counter should be reset when either a startup is successful the Low OAT Restart alarm is triggered or the unit time clock shows that a new day has started Circuit Status The displayed circuit status should be determined by the conditions in the following table If more than one status is enabled at the same time the hi...

Page 82: ... equipped with condenser fan VFDs the speed signal s also starts and stops the fan that is connected to the VFD The total number of fans on shall be adjusted with changes of one fan at a time The tables below show the outputs energized for each stage Figure 64 2 Fans per Circuit Unit Numbering Schematic Table 61 2 Fans per Circuit Without Fan VFD Circuit 1 Description Output Fans Stage 1 2 3 4 5 6...

Page 83: ...ut 2 UC DO4 Fan 12 On On Fan Output 3 UC DO5 Fan 13 On On On Fan Output 4 UC DO6 Fan 14 On Condenser SV UC X7 SV 11 On On On Circuit 2 Description Output Fans Stage 1 2 3 4 5 6 Fan Output 1 UC DO7 Fan 21 On On On On Fan Output 2 UC DO8 Fan 22 On On Fan Output 3 UC DO9 Fan 23 On On On Fan Output 4 UC DO10 Fan 24 On Condenser SV UC X8 SV 21 On On On Table 67 4 Fans per Circuit With 1 Fan VFD per Cir...

Page 84: ... On Condenser SV UC X8 SV 21 On Table 71 5 Fans per Circuit With 2 Fan VFDs per Circuit Circuit 1 Description Output Fans Stage 1 2 3 4 5 6 Speed Signal 1 UC X5 Fan 11 13 On On On Speed Signal 2 UC X2 Fan 12 14 On On Fan Output 5 EEXV1 DO1 Fan 15 On Condenser SV UC X7 SV 11 On Circuit 2 Description Output Fans Stage 1 2 3 4 5 6 Speed Signal 1 UC X6 Fan 21 23 On On On Speed Signal 2 UC X3 Fan 22 24...

Page 85: ...1 DO1 Fan 17 On Condenser SV UC X7 SV 11 On Circuit 2 Description Output Fans Stage 1 2 3 4 5 6 Fan Output 1 UC DO7 Fan 21 23 On On On On On On Fan Output 2 UC DO8 Fan 22 On On On Fan Output 3 UC DO9 Fan 24 26 On On On Fan Output 4 UC DO10 Fan 25 On On On On On Fan Output 5 EEXV2 DO1 Fan 27 On Condenser SV UC X8 SV 21 On Table 76 7 Fans per Circuit With 1 Fan VFD per Circuit Circuit 1 Description ...

Page 86: ...t 5 seconds since adding a condenser stage and the saturated condenser temperature is not dropping then a condenser stage will be added immediately Skipping First Stage There are circumstances where the first condenser stage will be skipped so condenser stage would go from 0 to 2 If the circuit has 4 fans or it has 6 fans and no fan VFD s then the first condenser stage may be skipped at startup Th...

Page 87: ...PLV mode is active the calculation for the minimum allowed condenser target based on LWT will be changed The minimum value will be changed from 23 9 C 75 F to the value of the IPLV Condenser Target set point No other changes to the operation are made when High IPLV mode is on Special Operation During Heat Recovery When the Heat Recovery state is either Recirculate or On the circuit should use the ...

Page 88: ...er than the target and the expansion valve has been within 1 of its current maximum position for a minute The maximum should increase at a rate of 0 1 every six seconds up to a total of an additional 10 This addition to the maximum position should be reset when the EXV is no longer in the Superheat Control state or a compressor on the circuit stages Table 78 Maximum Position Range Model Compressor...

Page 89: ... Input No Flow for time Flow Proof Set Point AND at least one compressor running 2 Evaporator Pump State Start for time greater than Recirc Timeout Set Point and all pumps have been tried and Evaporator Flow Digital Input No Flow Action Taken Rapid stop all circuits if an auto reset occurrence has triggered keep unit enabled and allow the evaporator recirculation sequence to proceed if a manu rese...

Page 90: ...en None Reset Auto clear when digital input is closed Bad Demand Limit Input Trigger Demand limit input out of range and Demand Limit set point is set to On For this alarm out of range is considered to be a signal less than 3mA or more than 21mA Action Taken Demand limit function and signal are ignored Reset Auto clear when demand limit disabled or demand limit input back in range for 5 seconds Ba...

Page 91: ...igger Power up start delay is not active and Mechanical High Pressure switch input is off and Motor Protection input is on for longer than one second Action Taken Rapid stop circuit Reset This alarm can be cleared manually via the controller keypad if the MHP switch input is on Motor Protection Fault Trigger Motor Protection input is off and power up start delay is not active for longer than one s...

Page 92: ...larms When an alarm or event occurs it appears in the active alarm list The active alarm list holds a record of all active alarms not yet cleared and includes the date and time each occurred When cleared the alarm transfers to the Alarm Log that contains an alarm history with time date stamp A before an alarm indicates that it is active a indicates a cleared alarm The Active Alarm list is only lim...

Page 93: ...is event is triggered if all of the following are true circuit state Run more than one compressor is running on the circuit condenser pressure High Condenser Pressure Unload set point Action Taken Stage off one compressor on the circuit every 10 seconds while condenser pressure is higher than the unload set point except the last one Inhibit staging more compressors on until the condition resets Re...

Page 94: ...icating the over temperature condition A Code 4 Alert will open the M2 M1 contacts The Alert will reset after 30 minutes Once the module has locked out the compressor a power cycle or Modbus reset command will be required to clear the lockout Code 5 Reserved for Future Use Code 6 Missing Phase The module will flash the red Alert LED six times indicating a missing phase The Alert will reset after 5...

Page 95: ...w the currently displayed items or an up down arrow to indicate there are lines above and below the currently displayed line The selected line is highlighted Each line on a screen can contain status only information or include changeable data fields setpoints When the cursor is on a line the highlights will look like this Evaporator Delta T 10 0F If line contains a changeable value Unit Status Run...

Page 96: ...erts back to the previously displayed page If the Back button is repeatedly pressed the display continues to revert one page back along the current navigation path until the main menu is reached When the Menu Home Button is pressed the display reverts to the main page When the Alarm Button is depressed the Alarm Lists menu is displayed Edit Mode The Editing Mode is entered by pressing the navigati...

Page 97: ...Using the Controller www DaikinApplied com 97 IOM 1206 13 TRAILBLAZER MODEL AGZ CHILLERS Figure 76 Controller Keypad Sample Navigation ...

Page 98: ...ng and holding this button will return to the Frequency Reference display 3 RESET Key Moves the cursor to the right Resets the drive to clear a fault situation 4 RUN Key Starts the drive in LOCAL mode 5 Up Arrow Key Scrolls up to display the next item select parameter numbers and increment setting values 6 Down Arrow Key Scrolls down to display the next item select parameter numbers and increment ...

Page 99: ...frequency reference is assigned to the MEMOBUS Modbus Communication Inputs of the drive OP Displayed when the frequency reference is assigned to an Option Unit of the drive RP Displayed when the frequency reference is assigned to the Pulse Train Input of the drive 7 LO RE Display 2 RSEQ Displayed when the run command is supplied from a remote source LSEQ Displayed when the run command is supplied ...

Page 100: ... LOCAL When a device other than the operator is selected for Run command and frequency reference control REMOTE RUN During run During deceleration to stop When a Run command is input and frequency reference is 0 Hz While the drive was set to LOCAL a Run command was entered to the input terminals then the drive was switched to REMOTE During stop A Run command was entered via the input terminals whi...

Page 101: ...cific error Multi function contact outputs do not operate The drive will not operate the motor until the error has been reset Correct the settings that caused the operation error to clear the error Tuning Errors Tuning errors occur while performing Auto Tuning When the drive detects a tuning error The digital operator displays text indicating the specific error Multi function contact outputs do no...

Page 102: ...g any 2 of the 3 motor lead connections which will cause reversal of the motor direction In applications where reversed rotation could cause equipment damage or personnel injury be sure to verify direction of rotation before attempting full speed operation For safety to personnel the motor chassis ground must be connected to the ground connection at the bottom of the inverter housing The AC motor ...

Page 103: ...tallation 12 Connect refrigerant service gauges to each refrigerant circuit before starting unit Pre Startup Electrical Check Out WARNING Electrical power must be applied to the compressor crankcase heaters 8 hours before starting unit to eliminate refrigerant from the oil 1 Open all electrical disconnects and check all power wiring connections Start at the power block and check all connections th...

Page 104: ...ping down 4 To start the chiller after a temporary shutdown follow the startup instructions Extended Shutdown 1 Front seat both condenser liquid line service valves 2 Put both circuit switches to the OFF position Pumpdown and Stop position 3 After the compressors have stopped put System Switch S1 to the OFF position emergency stop 4 Front seat both refrigerant circuit discharge valves if applicabl...

Page 105: ...n The flow sensor is mounted onto the adapter using silicone grease Carefully apply lubricant to the inside threads and o ring so temperature probe does not become coated with lubricant Torque the adapter sensor connection to 18 5 ft lbs Wiring Refer to wiring diagram in the unit control panel Either AC or DC is used to power the flow switch The unit controller s digital input is a DC signal which...

Page 106: ...ow Step 5 Once the SP is set it is recommended that the sensor be locked to avoid inadvertent readjustment This can be performed by pressing both the and buttons simultaneously for 10 seconds The indication goes out momentarily indicating the unit is locked To unlock the same procedure is performed to toggle to unlocked NOTE 1 The LED window display on flow switch represents a velocity range of 50...

Page 107: ...lit red and the leftmost LED will be flashing green For example if the SP was set to 200 cm s the flashing labeled 0 would indicate that the flow was below 180 cm s This would be shown if no flow through chiller or lowered than desired flow Figure 84 Display for Flow Below Range Flow above display range The SP LED will be lit amber all LEDs to the left and right of the SP LED with be green with th...

Page 108: ...inum Condenser Coils The condenser coils are an all aluminum design including the connections microchannel fins an oven brazing process brazes the fins to the microchannel flat tube and headers see Microchannel Coil Cross Section which eliminates the possibility of corrosion normally found between dissimilar metals of standard coils During the condensing process refrigerant in the coil passes thro...

Page 109: ...oils grease or dirt therefore these barriers must be removed prior to application of this product As in all surface preparation the best work yields the best results 2 Apply CHLOR RID DTS Apply CHLOR RID DTS directly onto the substrate Sufficient product must be applied uniformly across the substrate to thoroughly wet out surface with no areas missed This may be accomplished by use of a pump up sp...

Page 110: ... subcooling is low add charge to clear the sight glass see Refrigerant Charging on page 113 Once the subcooler is filled extra charge will not lower the liquid temperature and does not help system capacity or efficiency If subcooling is normal 15 to 20 degrees F at full load and flashing is visible in the sight glass check the pressure drop across the filter drier An element inside the sight glass...

Page 111: ...valve and is controlled by the MicroTech III controller It is active when only the first stage of cooling on a circuit is active WARNING The hot gas line may become hot enough to cause injury Be careful during valve checkout Table 89 Planned Maintenance Schedule Operation Weekly Monthly Note 1 Annual Note 2 General Complete unit log and review Note 3 X Visually inspect unit for loose or damaged co...

Page 112: ... heavier than air and can cause asphyxiation narcotic and cardiac sensation effects Evacuate systems and break vacuum 0 psig with nitrogen before welding or brazing Always ventilate work areas before using open flames Exposure to open flames or glowing metal will form toxic hydrofluoric acid carbonyl fluoride No smoking Make sure all tools equipment and replacement components are rated for the ref...

Page 113: ...on of the coil to achieve liquid cooling to within 15 to 20 F 8 3 to11 1 C of the outdoor air temperature when all condenser fans are operating Subcooling should be checked at full load with 70 F 21 1 C ambient temperature or higher stable conditions and all fans running Liquid line subcooling at the liquid shut off valve should be between 15 and 20 F at full load If subcooling is low add charge t...

Page 114: ...an VFDs needed 2 Compressor running in reverse 2 Check unit and compressor for correct phasing 3 Improper piping or support on suction or discharge 3 Relocate add or remove hangers 4 Worn compressor isolator bushing 4 Replace 5 Compressor mechanical failure 5 Replace High Discharge Pressure 1 Noncondensables in system 1 Extract noncondensables with approved procedures or replace charge 2 Circuit o...

Page 115: ...flow Level too high 5 Correct flow verify superheat 6 Excessive liquid in crankcase Level too high 6 Check crankcase heater Check liquid line solenoid valve operation 7 Short cycling 7 Stabilize load or correct control settings for application 8 HGBP valve oversize or improperly set up 8 replace or adjust HGBP valve 9 Expansion valve operation or selection 9 Confirm superheat at minimum and maximu...

Page 116: ...that items on the Pre Start Checklist have been completed and initial _____________ Note Discrepancies here or on Page 6 JOB INFORMATION UNIT INFORMATION This form must be completely filled out and returned to Daikin Applied Warranty Department within ten 10 days of start up in order to comply with the terms of the Daikin Limited Product Warranty New Chiller Start Up Form Air Cooled Scroll Compres...

Page 117: ...fused disconnect and fuses or breaker been sized per product manual and installed per local code Number of conduits Number of Wires Wire Size I Are all electrical power connections tight J Been operating for 24 hours prior to start up K Does all field wiring conform to unit electrical specifications L Are all service and liquid line valves per the IOMM in correct position M Water Strainer installe...

Page 118: ...m Ambient Temperatures Entering F C F C gpm lps F C F C START UP A Does unit start and perform per sequence of operation as stated in the IOM Manual B Do condenser fans rotate in the proper directions MICROTECH STATUS CHECK Each Reading Must be Verified with Field Provided Instruments of Known Accuracy MicroTech Verification C Water Temperatures Leaving Evaporator F C F C Entering Evaporator F C F...

Page 119: ...d settings been adjusted for the actual job requirements Detail these settings on page 6 Remarks section Note See operation manual for low temperature on ice bank applications Yes No K Unit Voltage Across Each Phase L1 L2 V L1 L3 V L Unit Current Per Phase L1 amps V L2 L3 L2 amps L3 amps M Compressor Current Per Phase Compressor 1 L1 Amps L2 Amps L3 Amps L1 Amps L2 Amps L3 Amps L1 Amps L2 Amps L3 ...

Page 120: ...ompressors T Number of Stages U Number of Fan Stages V Software Version YES NO A Are all control lines secure to prevent excess vibration and wear B Are all gauges shut off valve caps and packings tight after startup Refrigerant Leaks Repairs Made Items not installed per IOM Manual and or recommended corrective actions Title Telephone Date Performed By Company Name Address City State Zip Code Mode...

Page 121: ...EXCEPTIONS 1 If free warranty labor is available as set forth above such free labor does not include diagnostic visits inspections travel time and related expenses or unusual access time or costs required by product location 2 Refrigerants fluids oils and expendable items such as filters are not covered by this warranty 3 This warranty shall not apply to products or parts which a have been opened ...

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Page 124: ...is sold pursuant to its standard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Applied representative for warranty details To find your local Daikin Applied representative go to www DaikinApplied com Aftermarket Services To find your local parts office visit www DaikinApplied com or call 800 37PARTS 800 377 2787 To find your local service office visit ww...

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Daikin Trailblazer AGZ030-101E, Installation, Operation And Maintenance Manual

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