Daikin AGZ030E Installation, Operation And Maintenance Manual
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Daikin AGZ030E Installation, Operation And Maintenance Manual

Trailblazer air-cooled scroll chillers
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Installation, Operation,
and Maintenance Manual
Trailblazer
™
Air-Cooled Scroll Chillers
Model AGZ, E Vintage
30 to 240 Tons (100 to 840 kW)
HFC-410A Refrigerant
50/60 Hz
IOM 1206-7
Group: Chiller
Part Number: IOM1206-7
Date: July 2016

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Summary of Contents for Daikin AGZ030E

  • Page 1 Installation, Operation, IOM 1206-7 and Maintenance Manual Group: Chiller Part Number: IOM1206-7 Date: July 2016 Trailblazer ™ Air-Cooled Scroll Chillers Model AGZ, E Vintage 30 to 240 Tons (100 to 840 kW) HFC-410A Refrigerant 50/60 Hz...

  • Page 2: Table Of Contents

    Manufactured in an ISO 9001 & ISO 14001 certified facility ©2016 Daikin Applied. Illustrations and data cover the Daikin Applied product at the time of publication and we reserve the right to make changes in design and construction at any time without notice.
  • Page 3 Document Attached: Remote piping approval Notes: The most common problems delaying start-up and affecting unit reliability are: Field installed compressor motor power supply leads too small. Questions: Contact the local Daikin sales representative*. State size, number and type of conductors and conduits installed:...

  • Page 5: Installation And Application Information

    Number of fans and before unloading, making certain it agrees with the power rigging holes may vary from this diagram. supply available. Daikin Applied is not responsible for physical SPREADER BARS The lifting method will REQUIRED FOR damage after the unit leaves the factory.
  • Page 6 15°F to 65°F (-9°C to 18°C) operating envelope; consult Daikin Tools to ensure chiller is capable of the required lift. Operating chilled water delta-T range 6°F to 16°F (3.3°C to 8.9°C) Maximum evaporator operating inlet fluid temperature 81°F (27°C)
  • Page 7 nsTallaTIon and pplICaTIon nformaTIon Case 1: Building or Wall on One Side of Unit Case 2: Two Units, Side-by-Side NOTE: Assumes a solid height wall taller than unit. Refer to For models 030-180, there must be a minimum of 4 feet Case 4 for partial wall openings.
  • Page 8 nsTallaTIon and pplICaTIon nformaTIon Case 3: Three or More Units, Side-by-Side Case 4: Open Screening Walls For all models, there must be a minimum distance between Decorative screening walls are often used to help conceal a any units placed side-by-side; however, performance may be unit either on grade or on a rooftop.
  • Page 9 Have any pit installation reviewed by the Daikin Applied sales representative prior to installation to ensure it has sufficient air-flow characteristics and approved by the installation design engineer to avoid risk of accident.
  • Page 10 nsTallaTIon and pplICaTIon nformaTIon Models AGZ140-240E: The Case 5 figures for models AGZ140-240E show adjustment factors for pit/wall heights of 6 feet, 8 feet, and 10 feet. Figure 17: Case 5 - Full Load Capacity Reduction Figure 19: Case 5 - Power Increase (AGZ140-210E) (AGZ140-180E) Power Increase (AGZ140-210E) Full Load Capacity Reduction (AGZ140-180E)
  • Page 11 21. These WARNING evaporators do not have drain or vent connections due Daikin Applied recommends against the use of PVC and to their construction. Purge air from the water system CPVC piping for chilled water systems. In the event the pipe...
  • Page 12 nsTallaTIon and pplICaTIon nformaTIon Figure 22: Typical Piping, Shell and Tube Evaporator VENT LEAVING FLUID 3/8” PIPE PLUG TEMP. SENSOR OUTLET VIBRATION ELIMINATOR FLOW INLET SWITCH VALVED PRESSURE GAUGE GATE VALVE VIBRATION BALANCING ELIMINATOR VALVE DRAIN GATE WATER FLOW VALVE STRAINER PROTECT ALL FIELD PIPING AGAINST FREEZING...
  • Page 13 nsTallaTIon and pplICaTIon nformaTIon Water Flow Limitations CAUTION The use of detergents, chemicals, and additives in the chiller Constant Evaporator Flow system water may adversely affect chiller performance and The evaporator flow rates and pressure drops shown on page potentially lead to repair costs not covered by warranty. for various system designs.

  • Page 14: Flow Switch

    1. A factory-mounted thermal dispersion flow switch. selection and also has standby operation capability. The 2. A “paddle” type flow switch is available from Daikin controller will energize the pump whenever at least one circuit Applied for field mounting and wiring. Wire from switch...
  • Page 15 Daikin Applied sales representative to ensure chiller is capable of the CAUTION required lift.
  • Page 16 nsTallaTIon and pplICaTIon nformaTIon Condenser Coil Options and Coating BlackFin coils include aluminum fins pre-coated with a ™ durable phenolic epoxy coating. In addition to providing a Considerations durable coating on the fin material, the BlackFin ™ coils provide The standard coils on the Trailblazer chiller are an all and epoxy barrier between the aluminum fin stock and the ™...

  • Page 17: Refrigerant Schematics

    efrIgeranT ChemaTICs efrIgeranT ChemaTICs Figure 26: AGZ030-070E Package Chiller with Microchannel www.DaikinApplied.com IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS ™...
  • Page 18 efrIgeranT ChemaTICs Figure 27: AGZ075-100E Package Chiller with Microchannel IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS www.DaikinApplied.com ™...
  • Page 19 efrIgeranT ChemaTICs Figure 28: AGZ110-130E Package Chiller with Microchannel www.DaikinApplied.com IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS ™...
  • Page 20 efrIgeranT ChemaTICs Figure 29: AGZ140-180E Package Chiller with Microchannel IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS www.DaikinApplied.com ™...
  • Page 21 efrIgeranT ChemaTICs Figure 30: AGZ190-240E Package Chiller with Microchannel www.DaikinApplied.com IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS ™...

  • Page 22: Dimensions And Weights - Packaged Units

    ImensIons and eIghTs aCkaged nITs Figure 31: AGZ030E - AGZ035E ImensIons and eIghTs aCkaged nITs IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS www.DaikinApplied.com ™...
  • Page 23 ImensIons and eIghTs aCkaged nITs Figure 32: AGZ040E - AGZ070E www.DaikinApplied.com IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS ™...
  • Page 24 ImensIons and eIghTs aCkaged nITs Figure 33: AGZ075E - AGZ100E IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS www.DaikinApplied.com ™...
  • Page 25 ImensIons and eIghTs aCkaged nITs Figure 34: AGZ110E - AGZ130E www.DaikinApplied.com IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS ™...
  • Page 26 ImensIons and eIghTs aCkaged nITs Figure 35: AGZ140E - AGZ161E IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS www.DaikinApplied.com ™...
  • Page 27 ImensIons and eIghTs aCkaged nITs Figure 36: AGZ170E - AGZ180E www.DaikinApplied.com IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS ™...
  • Page 28 ImensIons and eIghTs aCkaged nITs Figure 37: AGZ190E - AGZ210E IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS www.DaikinApplied.com ™...
  • Page 29 ImensIons and eIghTs aCkaged nITs Figure 38: AGZ225E - AGZ240E www.DaikinApplied.com IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS ™...

  • Page 30: Refrigerant Charge

    efrIgeranT harge efrIgeranT harge Table 6: Refrigerant Charge - Microchannel Units Microchannel Coil Unit Operating Charge - lbs (kg) Unit Replaceable Core Filter Drier Sealed Filter Drier Models Circuit 1 Circuit 2 Circuit 1 Circuit 2 030E 17 (7.7) 17 (7.7) 15 (16.8) 15 (16.8) 035E...

  • Page 31: Isolator Information

    .56 [14.3] Optional seismic isolator information begins on page .25 [6.4] Contact a Daikin Applied sales representative for isolator ELASTOMERIC PAD information related to units with other fin materials. Table 7: Isolator Kits Figure 40: Rubber-in-Shear (RIS) Isolator Microchannel - Packaged Units...
  • Page 32 solaTor nformaTIon Table 8: Isolator Information - Microchannel Units Rubber-In-Shear (RIS) Mounts Spring Isolator Mountings AGZ-E Model Brown Brown Brown Brown Dark Grn Dk Prple Black Black Brown Brown Brown Brown Dark Grn Dk Prple Black Black Brown Brown Brown Brown Dark Grn Dk Prple Black...
  • Page 33 solaTor nformaTIon Figure 41: Seismic Spring Isolators 1 1/8 [29] [203] 13/16 [21] DIA HOLE FOR ATTACHMENT TO CONCRETE (6 TYP) (BASE PLATE) [19] DIA HOLE FOR ATTACHMENT TO 2 1/4 [57] STEEL (4 TYP) (VIEW CUT AWAY FOR CLARITY) 6 1/4 [159] 2 7/8 [73] 2 7/8 [73]...

  • Page 34: Pressure Drop Data

    ressUre ressUre Figure 43: Pressure Drop Curves 1000 Flow Rate (gpm) NOTE: Data table on next page. IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS www.DaikinApplied.com ®...
  • Page 35 ressUre Table 11: Pressure Drop Data Full Load Minimum Flow Part Load Minimum Flow (Applies to Constant and Fixed and Variable Flow Systems (Variable Flow Systems Only Variable Flow Systems) Minimum Flow Rate Minimum Flow Rate Nominal Flow Rate Maximum Flow Rate Curve Model Ref .
  • Page 36 Electrical Data Notes Panel High Short Circuit Current Rating 1. Power wiring connections to the chiller may be done with (Previously known as “withstand rating”). The entire control either copper or aluminum wiring. Copper wire should be panel is designed for short circuit current rating as shown sized per NEC and/or local codes.

  • Page 37: Electrical Data

    leCTrICal leCTrICal Figure 44: Typical Field Wiring Diagram (Single-Point Connection) FIELD WIRING DIAGRAM WITH MICROTECH CONTROLLER PANEL DISCONNECT SWITCH CIRCUIT BREAKER (BY OTHERS) POWER BLOCK 3 PHASE POWER COMPRESSOR(S) SOURCE AND FAN MOTORS EARTH GROUND 120 VAC CHWR1 PUMP NO.1 RELAY DISCONNECT CONTROL CIRCUIT (BY OTHERS)
  • Page 38 leCTrICal Figure 45: Typical Field Wiring Diagram (Multi-Point Connection) FIELD WIRING DIAGRAM WITH MICROTECH CONTROLLER PANEL DISCONNECT SWITCH CIRCUIT BREAKER 1 (BY OTHERS) POWER BLOCK 3 PHASE TO CIRCUIT 1 POWER COMPRESSOR(S) SOURCE AND FAN MOTORS Note: Separate grounding is EARTH required if fed from different GROUND...
  • Page 39 leCTrICal Table 14: Electrical Data - Single Point (60/50 Hz) Table 15: Electrical Data - Single Point (60/50 Hz) Single Point Field Data Single Point Field Data Model Voltage / Model Voltage / Ratings Lug Range Ratings Lug Range Size Freq .
  • Page 40 leCTrICal Table 16: Electrical Data - Single Point (60/50 Hz) Table 17: Electrical Data - Single Point (60/50 Hz) Single Point Field Data Single Point Field Data Model Voltage / Model Voltage / Ratings Lug Range Ratings Lug Range Size Freq .
  • Page 41 leCTrICal Table 18: Electrical Data - Multiple Point (60/50 Hz) Multiple Point Field Data - Circuit #1 Multiple Point Field Data - Circuit #2 Model Voltage / Ratings Lug Range Ratings Lug Range Size Frequency Disconnect Disconnect Power Block Power Block Switch Switch 208V/60...
  • Page 42 leCTrICal Table 19: Electrical Data - Multiple Point (60/50 Hz) Multiple Point Field Data - Circuit #1 Multiple Point Field Data - Circuit #2 Model Voltage / Ratings Lug Range Ratings Lug Range Size Frequency Disconnect Disconnect Power Block Power Block Switch Switch 208V/60...
  • Page 43 leCTrICal Table 20: Electrical Data - Multiple Point (60/50 Hz) Multiple Point Field Data - Circuit #1 Multiple Point Field Data - Circuit #2 Model Voltage / Ratings Lug Range Ratings Lug Range Size Frequency Disconnect Disconnect Power Block Power Block Switch Switch 208V/60...
  • Page 44 leCTrICal Table 21: Electrical Data - Multiple Point (60/50 Hz) Multiple Point Field Data - Circuit #1 Multiple Point Field Data - Circuit #2 Model Voltage / Ratings Lug Range Ratings Lug Range Size Frequency Disconnect Disconnect Power Block Power Block Switch Switch 208V/60...

  • Page 45: Unit Controller Operation

    onTroller peraTIon onTroller peraTIon General Description The MicroTech III controller’s design not only permits Security protection prevents unauthorized changing of the ® the chiller to run more efficiently, but also can simplify setpoints and control parameters. troubleshooting if a system failure occurs. Every MicroTech ®...

  • Page 46: Controller Inputs And Outputs

    onTroller peraTIon Controller Inputs and Outputs Table 27: Digital Inputs Description Signal Off Signal On Main Controller Circuit 1 Switch Circuit Disable Circuit Enable Circuit 1 MHP Switch Fault No fault Table 22: Analog Inputs Circuit 1 Motor Fault No fault Description Signal Type Expected Range...
  • Page 47 onTroller peraTIon EXV Module 1 and 2 These modules will be used only when the expansion valve type is electronic. Table 32: Digital Outputs Description Output Off Output On Circuit 1 or 2 Fan Fan(s) Off Fan(s) On Output 5 Table 33: Stepper Motor Output Description M1+, M1-...
  • Page 48 onTroller peraTIon Table 36: AGZ-E Models with 2 VFDs per Circuit Number of Fans Physical Output Descr . Output 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...
  • Page 49 onTroller peraTIon Set Points Set points are initially set to the values in the Default column, not be needed and therefore not be visible. and can be adjusted to any value in the Range column. Set Basic unit configuration set points will require the unit to be points are stored in permanent memory.
  • Page 50 onTroller peraTIon Table 39: Unit Level Set Point Defaults and Ranges (continued) Saturday Duration 12 hrs 0 to 24 hrs Sunday Start Time 22:00 00:00 to 23:00 Sunday Duration 12 hrs 0 to 24 hrs Unit Sensor Offsets Evap LWT Sensor Offset 0°C (0°F) -5.0 to 5.0 °C (-9.0 to 9.0 °F) Evap EWT Sensor Offset...
  • Page 51 onTroller peraTIon Table 44: Design Conditions Description Default Range Design Evaporator EWT 0°C (32°F) -9.5°C to 28.34°C (14.9°F to 83°F) Design Evaporator LWT 0°C (32°F) -9.5°C to 18.34°C (14.9°F to 65°F) Design Evaporator Water Flow 0 lph (0 gpm) 0 to 908399 lph (0 to 4000 gpm) Design Evaporator Approach Circuit 1/2 0°C (0°F) 0°C to 10°C (0°F to 18°F)
  • Page 52 onTroller peraTIon Table 47: Commincation Configuration Description Default Range Controller IP DHCP Off, On Controller IP Network Address 192.168.001.042 000.000.000.000 to 255.255.255.255 Controller IP Network Mask 255.255.255.000 000.000.000.000 to 255.255.255.255 Controller IP Network Gateway 192.168.001.001 000.000.000.000 to 255.255.255.255 Lon Module Maximum Send Time 0 seconds 0 to 6553.4 seconds Lon Module Minimum Send Time...
  • Page 53 onTroller peraTIon Circuit Level Set Points The settings in this section all exist for each individual circuit. Table 48: Set Points for Individual Circuits Description Default Range Mode/Enabling Circuit mode Enable Disable, Enable, Test Compressor 1 Enable Auto Auto, Off Compressor 2 Enable Auto Auto, Off...
  • Page 54 onTroller peraTIon Dynamic Set Point Ranges and Defaults 1 - Models 30 to 70 2 - Models 75 to 240 with no fan VFDs or one VFD per circuit Some settings have different ranges of adjustment based 3 - Models from 75 to 161 with 2 fan VFDs per circuit on other parameters and unit configuration.
  • Page 55 onTroller peraTIon Table 52: Configuration Group 4 Description Default Range Condenser Target - 100% Circuit Capacity 37.78°C(100 °F) 35 to 46.11°C (95 to 115°F) Condenser Target - 67% Circuit Capacity 37.78°C(100 °F) 35 to 40.56°C (95 to 105°F) Condenser Target - 33% Circuit Capacity 26.67°C (80°F) 23.89 to 29.44°C (75 to 85°F) Fan Stage Up Deadband 1...

  • Page 56: Sequence Of Operation

    eqUenCe of peraTIon eqUenCe of peraTIon Figure 47: Unit Sequence of Operation - Cool Mode Unit power up Unit in O 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.
  • Page 57 eqUenCe of peraTIon Figure 48: Unit Sequence of Operation - Cool Mode (continue) Keep pump output on while chiller is enabled and either running or ready to run. The chiller is now ready to start if enough load is present. If the LWT is not higher than the start up temperature, the unit status will be Auto:Wait for load.
  • Page 58 eqUenCe of peraTIon Figure 49: Unit Sequence of Operation - Cool Mode (continued) Maintain unit capacity. The unit capacitycan be decreasedif the LWTis below the stage down Can less circuits handle temperature. the load? Has the stage down A minimum time must pass between decreases in unit capacity. time delay expired? Compressors will shut o as needed in the order determined by sequencing logic.
  • Page 59 eqUenCe of peraTIon Figure 50: Unit Sequence of Operation - Ice Mode Unit power up Unit in O 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.
  • Page 60 eqUenCe of peraTIon Figure 51: Unit Sequence of Operation - Ice Mode (continued) Pump output remains on while chiller is enabled. If the chiller is waiting on the motor protection delay after powering up, the unit Is Motor Protection status will be O :Motor Protection Delay. delay active? Keep pump output on while chiller is enabled and either...
  • Page 61 eqUenCe of peraTIon Figure 52: Unit Sequence of Operation - Ice Mode (continued) 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. Increase unit capacity.
  • Page 62 eqUenCe of peraTIon Figure 53: Circuit Sequence of Operation Unit power up When the circuit is in the O state the EXV is in the closed position, compressors are Circuit is in O state o , solenoid valves are closed, and all condenser fans are o . The circuit must be enabled before it can run.

  • Page 63: Unit Functions

    UnCTIons UnCTIons The calculations in this section are used in unit level control means the flow that is needed for a 5.56°C (10°F) delta T at full logic or in control logic across all circuits. unit capacity. Evaporator Delta T Table 54: Minimum Flows and Corresponding Maximum Effective Full Capacity Delta T with Variable Flow The evaporator water delta T is calculated as entering water...

  • Page 64: Unit Enable

    UnCTIons the Control Band: Table 55: Unit Mode Settings • Start Up Temperature = Stage Up Temperature + Start Up Control Available Delta set point Source Set Mode Input Modes Set Unit Mode Request Point Point • Shutdown Temperature = Stage Down Temperature – Shutdown Delta set point Cool Cool...
  • Page 65 UnCTIons T1 - Off to Auto the Low OAT Lockout set point is configurable if the chiller has condenser fan VFD’s. In that case, there are three options: All of the following are required: • Lockout and Stop – chiller will shut down and lockout •...

  • Page 66: Evaporator Pump Control

    UnCTIons Unit Status Evaporator Pump Control The displayed unit status should be determined by the For control of the evaporator pumps, three evaporator pump conditions in the following table: control states should be used: Status Conditions Off - No pump on. Auto Unit State = Auto Start –...

  • Page 67: Lwt Target

    UnCTIons LWT Target Freeze Protection To protect the evaporator from freezing, the evaporator pump The LWT Target varies based on settings and inputs. will start if all of the following are true: The base LWT Target is selected as follows: •...

  • Page 68: Unit Capacity Control

    UnCTIons Unit Capacity Control compressor on each circuit shall be left on until each circuit has only one compressor running. Unit capacity control will be performed as described in this section. All unit capacity limits described in following sections Next To Start must be applied as described.
  • Page 69 UnCTIons Maximum LWT Pulldown Rate Table 56: Stage Limits - Four Compressors Demand Limit Signal Demand Limit Range (mA) Stage The maximum drop rate for the leaving water temperature shall be limited by the Maximum Pulldown Rate set point only when Limit ≥...
  • Page 70 UnCTIons RapidRestore Option Fast Loading ® Fast loading will be performed when the following conditions RapidRestore is an option that can be added to Trailblazer ® ™ are met after the unit power up: chillers. The general purpose of the option is to allow the capability to restart more quickly and to load faster than normal •...
  • Page 71 UnCTIons Sound Reduction Compressor Starts Per Hour Since the compressor cycle timers are not maintained through A special mode of operation is available for E vintage models power cycling, a limitation on the number of starts per hour with two fan VFD’s per circuit, which reduces sound levels by will be added.

  • Page 72: Circuit Functions

    IrCUIT UnCTIons IrCUIT UnCTIons Calculations Circuit States The circuit will always be in one of four states: Refrigerant Saturated Temperature Off – Circuit is not running Refrigerant saturated temperature shall be calculated from the Preopen – Circuit is preparing to start pressure sensor readings for each circuit.

  • Page 73: Pumpdown Procedure

    IrCUIT UnCTIons Circuit Status T6 – Preopen to Off Any of the following are required: The displayed circuit status should be determined by the conditions in the following table:If more than one status is • Unit State = Off enabled at the same time, the hightest numbered status •...

  • Page 74: Condenser Fan Control

    IrCUIT UnCTIons Cycle Timers Table 61: 2 Fans per Circuit - Without Fan VFD Circuit 1 A minimum time between starts of the compressor and a Stage minimum time between shutdown and start of the compressor Description Output Fans shall be enforced. The time values are determined by the Fan Output 1 UC DO3 Fan 11 On On...
  • Page 75 IrCUIT UnCTIons Table 64: 3 Fans per Circuit - With 1 Fan VFD per Circuit Table 66: 4 Fans per Circuit - Without Fan VFD Circuit 1 Circuit 1 Stage Stage Description Output Fans Description Output Fans Fan Output 1 UC DO3 Fan 11 On On On On Speed Signal 1 UC X5...
  • Page 76 IrCUIT UnCTIons Figure 57: 5 Fans per Circuit - Unit Numbering Schematic Table 71: 5 Fans per Circuit - With 2 Fan VFDs per Circuit Circuit 1 5-Fan Locations and Numbering Stage Description Output Fans Speed Signal 1 UC X5 Fan 11/13 On On On Fan 15 Fan 24...
  • Page 77 IrCUIT UnCTIons Table 73: 6 Fans per Circuit - With 1 Fan VFD per Circuit Circuit 2 Circuit 1 Stage Description Output Fans Stage Description Output Fans Fan Output 1 UC DO7 Fan 21/23 On On On On On Speed Signal 1 UC X5 Fan 11/13 On On On On On Fan Output 2...
  • Page 78 IrCUIT UnCTIons Condenser Target below the target – the active deadband, a stage down error is accumulated. The condenser target is selected based on circuit capacity Stage Down Error Step = (Target - Stage Down dead band) using the condenser target set points. There are set points - Saturated Condenser Temperature that establish the condenser target for 33%, 50%, 67%, and 100% capacity.

  • Page 79: Exv Control

    IrCUIT UnCTIons EXV Control Once the condenser saturated temperature starts to exceed that value, the fans will speed up beyond the speed limit as needed to control the saturated temperature to that value. Control States High IPLV Mode EXV control will always be in one of two states: Closed or Superheat Control.
  • Page 80 Table 78: Maximum Position Range # Compressors Running/Circuit Liquid Line Solenoid Valve Model The liquid line solenoid output should be on when the circuit AGZ030E state is either Pre-open or Run. This output should be off at all AGZ035E other times. AGZ040E...

  • Page 81: Alarms

    larms larms Situations may arise that require some action from the chiller always a manual reset alarm. or that should be logged for future reference. Alarms are Evaporator Water Freeze Protect classified in the following sections as Faults, Problems, or Warnings.

  • Page 82: Unit Problem Alarms

    larms EXV Module 2 Comm Failure Evaporator EWT Sensor Fault Trigger: Expansion Valve Type = Electronic and Trigger: Sensor shorted or open for longer than one second communication with the I/O extension module has failed. Action Taken: None. Action Taken: Rapid stop of circuit 2 . Reset: Auto clear when the sensor is back in range.

  • Page 83: Clearing Alarms

    larms Mechanical High Pressure Switch Suction Temperature Sensor Fault Trigger: Mechanical High Pressure switch input is open and Trigger: Sensor shorted or open for longer than one second Motor Protection input is closed for longer than one second, and Expansion Valve Type = Electronic. and power up start delay is not active.

  • Page 84: Unit Events

    larms To use the keypad, follow the Alarm links to the Alarms screen, pressure > Low Evaporator Pressure Hold SP + 90 KPA (13 which will show Active Alarms and Alarm Log. Select Active PSI). The event is also reset if the circuit is no longer in the run Alarm and press the wheel to view the Alarm List (list of current state.

  • Page 85: Using The Controller

    sIng The onTroller sIng The onTroller Figure 61: Schematic of Unit Controller The keypad/display consists of a 5-line by 22-character include changeable data fields (setpoints). display, three buttons (keys) and a “push and roll” navigation When the cursor is on a line the highlights will look like this: wheel.
  • Page 86 Enter Password T = Technician level Enter PW **** D = Daikin Applied factory service technician level Entering an invalid password has the same effect as not Screen navigational links: entering a password. • For each link on a screen, the linked screen is indicated Once a valid password has been entered, the controller in the rightmost column.
  • Page 87 sIng The onTroller Figure 66: Controller Keypad Sample Navigation www.DaikinApplied.com IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS ™...

  • Page 88: Optional Low Ambient Fan Vfd

    pTIonal mbIenT pTIonal mbIenT The optional VFD fan control is used for unit operation below Inverter Output to the Motor 32°F (0°C) down to a minimum of -10°F (-23°C). The control looks at the saturated discharge temperature and varies the WARNING fan speed to hold the temperature (pressure) at the “target”...
  • Page 89 pTIonal mbIenT VFD Interface The VFD controller is located in the lower left-hand corner of the unit control panel. It is used to view data including fault and alarm information. No operator intervention on this control is required for normal unit operation. Table 79: Display Key Functions No .
  • Page 90 pTIonal mbIenT Figure 67: LCD Display Table 80: Display Data Name Display Content MODE Displayed when in Mode Selection. MONITR Displayed when in Monitor Mode. VERIFY Indicates the Verify Menu. Operation Mode Menus PRMSET Displayed when in Parameter Setting Mode. A.TUNE Displayed during Auto-Tuning.
  • Page 91 pTIonal mbIenT Table 81: Alarm Content State Content Illuminated When the drive detects an alarm or error When an alarm occurs Flashing When an oPE is detected When a fault or error occurs during Auto-Tuning Normal operation (no fault or alarm) Table 82: LO/RE LED and RUN LED Indictors Flashing Flashing Quickly...
  • Page 92 pTIonal mbIenT Table 83: Types of Alarms, Faults, and Errors Type Drive Response When the drive detects a fault: • The digital operator displays text indicating the specific fault and the ALM indicator LED remains lit until the fault is reset. Faults •...

  • Page 93: Recommended Periodic Inspection

    pTIonal mbIenT Table 84: Fault Reset Methods Table 85: Periodic Inspection Checklist After the Fault Occurs Procedure Inspection Area Inspection Points Corrective Action Press RESET on the controller. Inspect equipment Replace damaged including wiring, components. terminals, resistors, Fix the cause of the fault, capacitors, diode and restart the drive, and reset IGBT for discoloration...

  • Page 94: Startup And Shutdown Procedures

    Complete the pre-start checklist at the front of 5. Apply power to the unit. The panel Alarm Light will stay this manual and return to Daikin Applied prior to startup date. on until S1 is closed. Ignore the Alarm Light for the check out period.

  • Page 95: Extended Shutdown

    10 days of start- 5. If chilled water system is not drained, maintain power to up in order to comply with the terms of Daikin Limited the evaporator heater to prevent freezing. Maintain heat Product Warranty.

  • Page 96: Component Operation

    omponenT peraTIon omponenT peraTIon Hot Gas Bypass (Optional) Warnings and Alerts This option allows the system to operate at lower loads without A solid green LED indicates the module is powered and excessive on/off compressor cycling. The hot gas bypass operation is normal.

  • Page 97: Crankcase Heaters

    omponenT peraTIon Evaporator after 5 minutes and the module will lockout the compressor after 10 consecutive Code 6 Alerts. Once locked out, a power On AGZ-E models 030 through 180, the evaporator is a cycle or Modbus reset is required. compact, high efficiency, dual circuit, brazed plate-to-plate type Code 7 –...

  • Page 98: Unit Maintenance

    In non-metallic bristle brush may be used. In either case, the tool the unlikely occurence of a coil leak, contact Daikin Applied to should be applied in the direction of the fins. Coil surfaces can receive a replacement coil module.
  • Page 99 aInTenanCe Periodic Clean Water Rinse application of this product. As in all surface preparation, the best work yields the best results. A monthly clean water rinse is recommended for coils that are 2. Apply CHLOR*RID DTS - Apply CHLOR*RID DTS applied in coastal or industrial environments to help to remove directly onto the substrate.

  • Page 100: System Adjustment

    aInTenanCe Filter-Driers System Adjustment Replace the filter-drier any time excessive pressure drop is To maintain peak performance at full load operation, the read across the filter-drier and/or when bubbles occur in the system superheat and liquid subcooling may require sight glass with normal subcooling. The filter-drier should also adjustment.
  • Page 101 aInTenanCe Table 88: Planned Maintenance Schedule Monthly Annual Operation Weekly (Note 1) (Note 2) General Complete unit log and review (Note 3) Visually inspect unit for loose or damaged components Inspect thermal insulation for integrity Clean and paint as required Electrical Check terminals for tightness, tighten as necessary Clean control panel interior...
  • Page 102 (e.g. PVC), as it may absorb Glide: The total difference of Dew and Bubble Point at a moisture from this material. Daikin Applied recommends specific condition. Mid-Point or Mean: Measurement half way against the use of PVC and CPVC piping for chilled water between Dew and Bubble Points.

  • Page 103: Refrigerant Charging

    aInTenanCe Refrigerant Charging should be between 15 and 20 degrees F at full load. If subcooling is low, add charge to clear the sight glass. Once CAUTION the subcooler is filled, extra charge will not lower the liquid When moving refrigerant to/from the chiller using an auxiliary temperature and does not help system capacity or efficiency.

  • Page 104: Troubleshooting Chart

    roUbleshooTIng harT roUbleshooTIng harT PROBLEM POSSIBLE CAUSES POSSIBLE CORRECTIVE STEPS 1. Main or compressor disconnect switch open. 1. Close switch. 2. Fuse blown. circuit breakers open 2. Check electrical circuits and motor windings for shorts or grounds. Investigate for possible overloading. Check for loose or corroded connections.Replace fuse or reset breakers after fault cause is corrected.
  • Page 105 roUbleshooTIng harT PROBLEM POSSIBLE CAUSES POSSIBLE CORRECTIVE STEPS 1. Defective capacity control 1. Replace. Compressor Will Not 2. Faulty sensor or wiring 2. Replace. Stage Up 3. Stages not set for application 3. Adjust controller setting for application. 1. Control band not set properly 1.

  • Page 106: Warranty Registration Form (Scroll)

    P.O Box 2510 Staunton Warranty Department within ten (10) days of start-up in order to comply Staunton, VA 24402-2510 with the terms of "Daikin Limited Product Warranty". Email Address: STN.Wty_Startup_Registration@daikinapplied.com Check, Test and Commissioning for Scroll Product (AGZ, ACZ, WGZ, TGZ)
  • Page 107 arranTy egIsTraTIon Croll L. Does all field wiring conform to unit electrical specifications? M. Are all service and liquid line valves in correct position? N. Water Strainer installed? Shell & Tube Evaporators 0.125”(3.175mm) or smaller perforations Brazed Plate Evaporator 0.063” (1.6mm) or smaller perforations O.
  • Page 108 arranTy egIsTraTIon Croll 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 (°C) Entering Condenser ……………………………… °F (°C) °F (°C) Leaving Condenser ………………………………...
  • Page 109 arranTy egIsTraTIon Croll VI . MICROTECH SETPOINTS MICROTECH Setting A. Leaving Evaporator ………………………………………………………………….. °F (°C) B. Reset Leaving ……………………………………………………………………… °F (°C) C. Reset Signal ……………………………………………………………………… D. Reset Option ……………………………………………………………………… E. Maximum Chilled Water Reset …………………………………………………. °F (°C) F. Return Setpoint …………………………………………………………………….. °F (°C) G.
  • Page 110 Company Name: Address: City/State/Zip Code: Telephone: Modem Number: Signature: Date: Contractor's Signature RETURN COMPLETED FORM TO: DAIKIN, WARRANTY DEPT ., PO BOX 2510, STAUNTON, VA 24402 6/12/15 MLP Control # - SF99007 IOM 1206-7 • TRAILBLAZER MODEL AGZ CHILLERS www.DaikinApplied.com ™...

  • Page 111: Limited Product Warranty

    (collectively “Owner”) that Company, at it’s option, will repair or replace defective parts in the event any product manufactured by Company, including products sold under the brand name Daikin and used in the United States or Canada, proves defective in material or workmanship within twelve (12) months from initial startup or eighteen (18) months from the date shipped by Company, whichever occurs first.
  • Page 112 Now that you have made an investment in modern, efficient Daikin Applied equipment, its care should be a high priority. For training information on all Daikin Applied HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department.

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