Related Manuals for Daikin EWWQ-KC
Summary of Contents for Daikin EWWQ-KC
- Page 1 Date 01/2022 Supersedes Operating Manual D-EOMHP01501-22_00EN Water to water heat pump units with scroll compressors EWWQ~KC/ EWLQ~KC Original Instruction...
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Page 2: Table Of Contents
3.11.1.1. Setpoint Reset by 0-10V signal ............................17 3.11.1.2. Setpoint Reset by DT ................................ 17 3.12. Controller IP Setup ................................... 18 3.13. Daikin On Site ....................................18 3.14. Date/Time ......................................19 3.15. Master/Slave ...................................... 19 3.16. Customer Unit Configuration ................................20 3.17. -
Page 3: Safety Considerations
SAFETY CONSIDERATIONS 1.1. General Installation, start-up and servicing of equipment can be hazardous if certain factors particular to the installation are not considered: operating pressures, presence of electrical components and voltages and the installation site (elevated plinths and built-up up structures). -
Page 4: General Description
GENERAL DESCRIPTION 2.1. Basic Information POL468.85/MCQ/MCQ is a system for controlling single or dual-circuit air/water cooled chillers. POL468.85/MCQ/MCQ controls compressor start-up necessary to maintain the desired heat exchanger leaving water temperature. In each unit mode, by installing proper bypass options, it can control the operation of the condensers to maintain the proper condensation process in each circuit. Safety devices are constantly monitored by POL468.85/MCQ/MCQ to ensure their safe operation. -
Page 5: Embedded Web Interface (Optional)
2.5. Embedded Web Interface (Optional) The POL468.85/MCQ/MCQ controller has an embedded web interface, available with accessory EKRSCBMS (Connectivity for external BMS communication), that can be used to monitor the unit when connected to a TCP-IP network. It is possible to configure the IP addressing of the POL468.85/MCQ as a fixed IP of DHCP depending on the network configuration. -
Page 6: Working With This Unit
WORKING WITH THIS UNIT 3.1. Unit Interface The user interface installed in the unit is divided into 4 functional groups: Numeric value Display (f.g.1) Actual Parameter/Sub-Parameter group (f.g.2) Icon indicators (f.g.3) Menu/Navigation keys (f.g.4) The interface has a multi-level structure divided as follows: Main Menu Parameters Sub-Parameters... -
Page 7: Icons Description
Pressure Value displayed LED Percentage Percentage Value displayed LED Alarm No Alarm Alarm Presence Customer parameter LED Setting mode unlocked LED Connection status on Daikin on Connected No Connection Requesting Connection site LED on/stand-by Unit Enabled Unit Disabled LED remote BMS control... -
Page 8: Keypad On/Off
3.3.1. Keypad On/Off Keypad On/Off allows to enable or disable the unit from local controller. If needed, single refrigerant circuit can be also enabled or disabled. By default, all refrigerant circuits are enabled. Menu Parameter Range Description 0 = Unit disabled (Unit Enable) 1 = Unit enabled 2 = Unit enabling state based on Scheduler programming. -
Page 9: Network On/Off
[17.6.4] Time 3 [17.6.5] Value 3 [17.6.6] Time 4 [17.6.7] Value 4 The path in the Web HMI interface is “ → → ”. Main Menu View/Set Unit Scheduler The user can indicate four time slots for each day of the week and set one of the following modes for each of them: Parameter Range Description... -
Page 10: Water Setpoints
3.4. Water Setpoints Purpose of this unit is to cool or to heat (in case of heat mode) the water, to the setpoint value defined by the user and displayed in the main page: The unit can work with a primary or a secondary setpoint, that can be managed as indicated below: Keypad selection + Double Setpoint digital contact Keypad selection + Scheduler Configuration Network... -
Page 11: Heat/Cool Mode
3.5. Unit mode The Unit Mode is used to define if the chiller is configured to produce chilled or heated water. This parameter is related to the unit type and is set in factory or during commissioning operation. Current mode is reported in the main page. The path in the Web HMI interface for Unit mode configuration is “... -
Page 12: Deltat
Unit controller switches the pump frequency on the basis of: Actual unit capacity Double Speed digital input state If there are no active compressors (Unit Capacity = 0%) pump speed is set to Standby Speed, otherwise Speed 1 is selected depending on the Double Speed input state. -
Page 13: Network Control
3.7. Network Control To allow unit’s control from BMS system the Control Source parameter [4.00] needs to be set in Network. All settings related to BSM control communication can be visualized in Page [4]: Menu Parameter Range Description 0 = Network control disabled On/Off command from network (Control Source) 1 = Network control enabled... -
Page 14: External Alarm
Delta temperature respect the active setpoint to start second (Stage Up DT) compressor 0-MIN(5, 60-LwtSp) Delta temperature respect the active setpoint second (Stage Down DT) compressor 1÷60 [min] Minimum time between the compressor startup (Stage Up Delay) 0÷30 [min] Minimum time between the compressor shutdown (Stage Down Delay) if Unit mode = 1 or 3 Defines the minimum water temperature before the unit alarm... -
Page 15: Leaving Water Temperature Control
3.9.1.2. Leaving Water Temperature Control In LWT Control, compressor starts/stops depend on Leaving Water Temperature value with respect to the thermostatic control parameters. Depending on setting of StartupDT, thermoregulation control could lead to: More accurate Thermostatic control → Frequent compressor starts/stops. (Default Configuration) Note: UC always ensures amount of compressor start and stop does not exceed safety limit Parameter Description/Value... -
Page 16: Unit Capacity
*Nominal DT is the difference between entering and leaving water temperature when the unit is operating at full capacity with nominal plant water flow rate. Parameter Description/Value Control Temperature Leaving Water Temperature Based on Leaving Water Temperature Startup DT 7.7 dK (example with 5 °C of nominal flow rate and unit with 1 compressor) Shutdown DT 1.7 dK (default value as described in previous chapter) Nominal DT... -
Page 17: Setpoint Reset By 0-10V Signal
The path in the HMI Web interface to set the desired strategy is “Main Menu à Commission Unit à Configuration à Options” and modify the Setpoint Reset parameter. Parameter Range Description LWT Reset Setpoint reset not enabled 0-10V Setpoint reset enabled by an external signal between 0 and 10V Setpoint reset enabled by Evaporator Water Temperature Each strategy needs to be configured (although a default configuration is available) and its parameters can be set navigating to “Main Menu à... -
Page 18: Controller Ip Setup
255.255.0.0 Gateway 0.0.0.0 PrimDNS 0.0.0.0 ScndDNS 0.0.0.0 3.13. Daikin On Site Daikin on site connection can be enabled and monitored through menu [12]: Menu Parameter Range Description Off = Connection Off DoS connection is disabled (Enable) On = Connection On... -
Page 19: Date/Time
In order to use the DoS utility, the customer has to communicate the Serial Number to Daikin company and subscribe to the DoS service. Then, from this page, it is possible to: • Start/Stop the DoS connectivity • Check the connection status to DoS service •... -
Page 20: Customer Unit Configuration
[16.13] Interval Time 1-365 [16.14] Switch Time 1-24 [16.15] Temp Compensation Off-On [16.16] Tmp Cmp Time 0-600 minutes [16.17] M/S Alarm Code 0..511 The path in the Web HMI interface for Master/Slave configuration is “ → → → Main Menu Commission Unit Configuration ”. -
Page 21: Connectivity Kit & Bms Connection
0-120 0-120s (Water Reversing Valve Heat Delay) The path in the Web HMI interface for Water Reversing Valve settings is “ → → Main Menu View/Set Unit Water Reversing ” Valve 3.18. Connectivity Kit & BMS Connection The UC has two access ports for communications via Modbus RTU / BACnet MSTP or Modbus / BACnet TCP-IP protocol: RS485 port and Ethernet port. -
Page 22: About Chiller
(License Manager) Off = Passive Defines whether to use the bacnet protocol instead of On = Active (BacNETOverRS) modbus on the RS485 port. Off = Passive Defines the activation of BacNET TCP-IP protocol once On = Active (BacNET-IP) EKRSCBMS is unlocked. 0 = None Defines which protocol’s data the UC considers in its 1 = Modbus... - Page 23 Menu Parameter Sub-Parameter PSW Level Password [01.00] UEN Unit [01.01] C1EN [01.02] C2EN [02.00] Available Modes Mode [03.00] C1_Cap Capacity [03.01] C2_Cap [04.00] Source [04.01] En [04.02] C.SP [04.03] H.SP [04.04] Mode [05.00] C1 Setp [05.01] C2 [05.02] H1 [05.03] H2 [06.00] Evap In Tmps [06.01] Evap Out...
- Page 24 Menu Parameter Sub-Parameter PSW Level [9.06] Evap Freeze [9.07] Cond Freeze [9.08] Low Press Unld [9.09] Thermo Control [10] [10.00] Day Date [10.01] Month [10.02] Year [11] [11.0] Hour Time [11.1] Minute [12] [12.00] Enable [12.01] State [13] [13.00] DHCP IPst [13.01] Acutal IP [13.02] Actual Mask...
- Page 25 Menu Parameter Sub-Parameter PSW Level [17] [17.00] Monday Scheduler [17.0.0] Time 1 [17.0.1] Value 1 [17.0.2] Time 2 [17.0.3] Value 2 [17.0.4] Time 3 [17.0.5] Value 3 [17.0.6] Time 4 [17.0.7] Value 4 [17.01] Tuesday [17.1.0] Time 1 [17.1.1] Value 1 [17.1.2] Time 2 [17.1.3] Value 2 [17.1.4] Time 3...
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Page 26: Alarms And Trouble Shooting
ALARMS AND TROUBLE SHOOTING The UC protects the unit and the components from damaging in abnormal conditions. Each alarm is activated when the abnormal running conditions require an immediate stop of the whole system or sub-system to prevent potential damages. When an alarm occurs the proper alert icon will be turned on. -
Page 27: Troubleshooting
Alarm Type HMI Code Mapping Alarm Cause Solution ▪ Cir1Off NoPrChgAtStrt Circuit 1 C102 No pressure delta detected by UC Contact your local dealer Evaporating pressure under Cir1Off LowEvPr ▪ C105 Contact your local dealer minimum limit Discharge temperature over ▪... - Page 28 Notes D-EOMHP01501-22_00EN 28/29...
- Page 29 The present publication is drawn up by of information only and does not constitute an offer binding upon Daikin Applied Europe S.p.A.. Daikin Applied Europe S.p.A. 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.