Daikin EWWQ090G Operation Manual
Daikin EWWQ090G Operation Manual

Daikin EWWQ090G Operation Manual

Water cooled scroll chillers & heat pump
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Control
operation
manual
EWWQ090G  EWWQ720L Water-cooled scroll chillers
EWLQ090G  EWLQ720L Condenserless
EWHQ100G  EWHQ400G Heat pump scroll chillers
Refrigerant - R410A
D-EOMWC01203-15EN
Water cooled
scroll chillers &
heat pump
Rev
Date
Supersedes
00
-
D-EOMHW00107-15EN

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Summary of Contents for Daikin EWWQ090G

  • Page 1 Water cooled scroll chillers & heat pump Control operation manual EWWQ090G  EWWQ720L Water-cooled scroll chillers EWLQ090G  EWLQ720L Condenserless EWHQ100G  EWHQ400G Heat pump scroll chillers Date Refrigerant - R410A Supersedes D-EOMHW00107-15EN D-EOMWC01203-15EN...
  • Page 2: Table Of Contents

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Table of Contents SAFETY CONSIDERATIONS ............................5 General ...................................
  • Page 3 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Menu Structure .................................. 23 Main Menu..................................
  • Page 4 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Pumps ................................. 36 5.1.6 Power Conservation ............................
  • Page 5: Safety Considerations

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 1 SAFETY CONSIDERATIONS 1.1 General...
  • Page 6: Safety Devices

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 1.3 Safety Devices Each unit is equipped with safety devices of three different kinds: 1.3.1 General safety devices...
  • Page 7 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual In the event of a power supply outage, the unit will restart automatically without the need for an external command.
  • Page 8: Available Sensors

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual If the pressure becomes too high in the refrigerant circuit, the relief valve will open to limit the maximum pressure.
  • Page 9 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Sampling voltage / current DC 24 V / 8 mA...
  • Page 10 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 1.6.1.8 Demand Limit (optional) This input allows to limit the maximum number of compressor in run state.
  • Page 11: General Description

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 2 GENERAL DESCRIPTION 2.1 General The UC is a system for controlling single or dual-circuit water-cooled liquid chillers / heat-pump.
  • Page 12: Controller Operating Limits

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 2.3 Controller Operating Limits Operation (IEC 721-3-3): ...
  • Page 13: Communication Modules

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual CAUTION: Maintain the correct polarity when connecting the power supply to the boards, otherwise the peripheral bus communication will not operate and the boards may be damaged.
  • Page 14: Using The Controller

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 3 Using the Controller The control system consists of a unit controller (UC) equipped with a set of extension modules that implement additional features.
  • Page 15: General Recommendation

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual  Confirm 3.1 General Recommendation Before switching on the unit read the following recommendations: ...
  • Page 16: Passwords

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 3.3 Passwords The HMI structure is based on access levels that means that each password will disclose all the settings and parameters allowed to that password level.
  • Page 17: Basic Control System Diagnostic

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual In the new page rotate the wheel or use button 4/5 to highlight the Network Ctrl and press the wheel or the button 6 again to jump to the next menu where it is possible read the actual Control Source.
  • Page 18 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Solid Yellow Communication running but parameter from the application wrong or missing, or uncorrect factory calibration...
  • Page 19: Controller Maintenance

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 3.6 Controller maintenance The controller requires to maintain the installed battery. Every two years it’s required to replace the battery.
  • Page 20: Embedded Web Interface

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual   The Remote can be ordered with the unit and shipped loose as a field installed option. It can also be ordered anytime after chiller shipment and mounted and wired on the job as explained on the following page.
  • Page 21 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Enter the following credential to get access to the web interface:...
  • Page 22 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual These software are only an example of the browser supported and the versions indicated have to be intended as minimum versions.
  • Page 23: Menu Structure

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 4 Menu Structure All settings are divided in different menus. Each menu collects in a single page other sub-menus, settings or data related to a specific function (for example Power Conservation or Setup) or entity (for example Unit or Circuit).
  • Page 24: View/Set Unit

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 4.2 View/Set Unit Setpoint/Sub-Menu...
  • Page 25: Pumps

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 4.2.4 Pumps This page resumes all setting for the water pumps management. For more details about this parameters and the pump control logic refer to section 5.1.6.
  • Page 26: Menu Password

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual network. This can be done in this page. Please contact your IT department for further information on how to set the following setpoints.
  • Page 27: Settings

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Suction SH= Suction Superheat...
  • Page 28: Tmp Setpoints

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Output= Actual condensing control output 50…100%...
  • Page 29: Timers

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Heat/Cool w/Glycol Heat/Ice w/Glycol...
  • Page 30: Alarm Limits

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Unit Alm Behavior= Blinking...
  • Page 31: Unit Manual Control

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Cond Pressure= Condenser Pressure current reading (includes the offset) Cnd Pr Offset= 0.0kPa...
  • Page 32: Scheduled Maintenance

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Input/Output Values Evap Pr Inpt= 0.0V...
  • Page 33: Available Mode Setting

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Local Unit is enabled by local switches placed into the switchbox.
  • Page 34: Thermostat Control Settings

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual are activated according to Operating mode and Dual Setpoint selection. All default setpoint with their ranges are reported in the table below.
  • Page 35 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual [ Setpoint - Stage Up DT ÷ Setpoint + Stage Down DT ] The following table summarize the conditions for compressors start and shut down explained above.
  • Page 36: Alarm Settings

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 5.1.5 Alarm Settings Factory defaults are set for standard cooling mode, therefore they may not be properly tuned when working at different conditions.
  • Page 37: Power Conservation

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual When the unit is configured as Heat Pump with water inversion the controller inverts the functioning of the pumps.
  • Page 38 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Setpoint Reset by External 4-20 mA Signal The active setpoint is calculated applying a correction based on an external 4-20mA signal.
  • Page 39: Unit/Circuit Start-Up

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Chiller Mode Heat Pump Mode...
  • Page 40 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual With the Q0 switch in this position the unit is disabled. Pump will not start in normal operational condition.
  • Page 41: Preparing Circuits To Start

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Evap Recirc Unit is running the evaporator pump to equalize the water temperature in the evaporator.
  • Page 42: Circuit Capacity Control

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual If the circuit is allowed to start, the starting sequence is initiated. Starting sequence is described in a simplified version with the following flowchart.
  • Page 43: High Condensing Pressure

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Press Low”. The status is automatically cleared when the evaporating pressure rise above the Low Pressure Hold limit.
  • Page 44: Cond In / Cond Out

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual The controller also provides two digital contact (one per circuit) that can be used to enable the remote condensers or the condensing pumps.
  • Page 45 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual  SSH < SSH Target + 1.5°C ...
  • Page 46: Alarms

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 6 Alarms The UC protects the unit and the components from operating in abnormal conditions. Protections can be divided in preventions and alarms.
  • Page 47: Unit Pumpdown Stop Alarms

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual LwtReset Alm 6.1.1.3 Bad Demand Limit Input Signal This alarm can occurs only when the function Demand Limit is enabled (see section 4.9.1).
  • Page 48: Unit Rapid Stop Alarms

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual String in the alarm list: resistance measurement.
  • Page 49 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Bell icon is moving on controller’s Check if LEDs are both green.
  • Page 50 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual This alarm is generated in case of problems with the power supply to the chiller. This alarm can occur only if the PVM is enabled (see section 4.9.1)
  • Page 51 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual High Pressure: when unit works as chiller or as heat pump with water inversion...
  • Page 52: Circuit Warning Alarms

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 6.1.3.9 External alarm This alarm is generated to indicate that an external device whose operation is linked with this unit operation.
  • Page 53: Circuit Rapid Stop Alarms

    EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Check for correct plug-in of the electrical connectors.
  • Page 54 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual EEXV is not working correctly.
  • Page 55 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual Check the correct operation of the electronic expansion valve.
  • Page 56 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual 6.1.6.7 No Pressure Change At Start alarm This alarm indicates that the compressor is not able to start or it is not able to create a minimum variation of the evaporating or condensing pressures after start.
  • Page 57 EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers Water cooled scroll chillers & heat pump Operation EWLQ090G ÷ EWLQ720L - R410a - Condenser less EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers Manual EWWQ - EWLQ - EWHQ Operation Manual Water cooled scroll chiller &heat...
  • Page 58 Spares enquiries call us on: N.V. Daikin Europe N.V. has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content and the products and services presented therein.

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