Related Manuals for Daikin EKHBH008BB Series
Summary of Contents for Daikin EKHBH008BB Series
- Page 1 INSTALLATION MANUAL Indoor unit for air to water heat pump system EKHBH008BB3V3 EKHBH008BB6V3 EKHBH008BB6WN EKHBH008BB6T1 EKHBH008BB9WN EKHBH008BB9T1 EKHBX008BB3V3 EKHBX008BB6V3 EKHBX008BB6WN EKHBX008BB6T1 EKHBX008BB9WN...
- Page 2 ≥350 1-1/2" MBSP 1" MBSP...
- Page 3 3PW57792-1...
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Page 4: Table Of Contents
EKHBH008BB*** Installation manual Indoor unit for air to water heat pump system EKHBX008BB*** 9. Test run and final check ............43 ONTENTS Page 9.1. Final check ................... 43 1. Definitions.................. 2 9.2. Test run operation (manual) ............43 Procedure ..................43 1.1. -
Page 5: Definitions
INFORMATION to the equipment. Be sure only to use accessories and optional equipment made by Daikin which are specially designed for use with This symbol identifies useful tips or additional information. the products as of subject in this manual and have them installed by an installer. -
Page 6: Introduction
This unit is designed for wall mounted indoor installation. See "6.1. Selecting an installation location" on page 13. The unit can be combined with Daikin fan coil units, floor heating applications, low temperature radiators, Daikin domestic water heating applications and Daikin solar kit for domestic hot water applications. -
Page 7: Scope Of This Manual
3.2. Scope of this manual Drain pan kit (option) For heating/cooling versions (EKHBX), it is necessary to install the This manual does NOT include the selection procedure and the water EKHBDP drain pan kit. system design procedure. Only some precautions and tips and tricks about the design of the water circuit are given in a separate chapter For more information concerning the drain pan kit, refer to of this manual. -
Page 8: Typical Application Examples
3.4. Typical application examples Application 2 The application examples given below are for illustration purposes Space heating only application without room thermostat connected to only. the indoor unit. The temperature in each room is controlled by a valve on each water circuit. Domestic hot water is provided through the Application 1 domestic hot water tank which is connected to the indoor unit. -
Page 9: Application 3
Domestic water heating Application 3 When domestic water heating mode is enabled (either manually by the user, or automatically through a schedule timer) the target Space heating and cooling application with the room thermostat set domestic hot water temperature will be achieved by a combination of for heating/cooling connected to the indoor unit. -
Page 10: Application 4
Space heating with an auxiliary boiler (alternating operation) FCU2 FCU3 Space heating application by either the Daikin indoor unit or by an auxiliary boiler connected in the system. The decision whether either the EKHB* indoor unit or the boiler will operate can be achieved by an auxiliary contact or an EKHB* indoor controlled contact. - Page 11 ■ Make sure to only have 1 expansion vessel in the water circuit. An expansion vessel is already premounted in the Daikin indoor unit. NOTICE Make sure to configure the DIP switch SS2-3 on the PCB of the EKHB* switch box correctly. Refer to "8.2.
- Page 12 Daikin only offers a dual set point control function. By this function (a) The aquastat valve must be set for 55°C and must operate to close the return water flow to the unit when the measured temperature exceeds 55°C. When the two set points can be generated.
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Page 13: Accessories
field wiring – the switch box service panel can be removed. station Thereto, loosen the front screws and unhitch the switch box ■ Daikin does not offer any type of mixing station. Dual service panel. set point control only provides the possibility to use two set points. -
Page 14: Main Components
Air purge valve Remaining air in the water circuit will be automatically removed via the air purge valve. Backup heater The backup heater consists of an electrical heating element in the backup heater vessel that will provide additional heating capacity to the water circuit if the heating capacity of the outdoor unit is insufficient due to low outdoor temperatures. -
Page 15: Switch Box Main Components
5.3. Switch box main components 12. X9A socket The X9A socket receives the thermistor connector (only for installations with domestic hot water tank). 13. Fuse FU2 (in line fuse) 14. Transformer TR1 15. A4P Digital I/O PCB (only for installations with solar kit or digital I/O PCB kit). -
Page 16: Installation Of The Indoor Unit
■ Do not install the unit in places often used as work place. NSTALLATION OF THE INDOOR UNIT In case of construction works (e.g. grinding works) where a lot of dust is created, the unit must be covered. ■ 6.1. Selecting an installation location Take care that in the event of a water leak, water can not cause any damage to the installation space and surroundings. -
Page 17: Inspecting, Handling And Unpacking The Unit
6.3. Inspecting, handling and unpacking the unit 6.4. Mounting the indoor unit ■ The indoor unit is packed in a cardboard box, fixed by straps on CAUTION a wooden pallet. ■ At delivery, the unit must be checked and any damage must be The weight of the indoor unit is approximately 46 kg. -
Page 18: Installation Of The Ekhbdp Drain Pan Kit (Only For Ekhbx Models)
6.5. Installation of the EKHBDP drain pan kit (only for 6.8. General precautions concerning water circuit EKHBX models) Before continuing the installation of the unit, check the following points: For heating/cooling models, it is necessary to install the drain pan kit (see "4. -
Page 19: Checking The Water Volume And Expansion Vessel Pre-Pressure
■ Air vents must be provided at all high points of the system. The Checking the water volume and expansion vessel vents should be located at points which are easily accessible for pre-pressure servicing. An automatic air purge is provided inside the indoor unit. -
Page 20: Setting The Pre-Pressure Of The Expansion Vessel
Using the table and instructions below, determine if the total Example 2 water volume in the installation is below the maximum allowed The indoor unit is installed at the highest point in the water circuit. water volume. The total water volume in the water circuit is 350 l. Installation Water volume Result:... -
Page 21: Piping Insulation
6.10. Piping insulation 7.2. Internal wiring - Parts table The complete water circuit, inclusive all piping, must be insulated to Refer to the internal wiring diagram supplied with the unit (on the prevent condensation during cooling operation and reduction of the inside of the indoor unit switch box cover). -
Page 22: System Overview Of Field Wiring
7.3. System overview of field wiring Required number of Maximum Item Description conductors running current WARNING Power supply cable for outdoor 2+GND ■ Switch off the power supply before making any unit connections. Indoor unit power supply and 3+GND communication cable ■... -
Page 23: Connection Of The Indoor Unit Power Supply And Communication Cable
Connection of the indoor unit power supply and Connection of the backup heater power supply communication cable Power circuit and cable requirements Power circuit and cable requirements CAUTION Power supply for the indoor unit is to be provided through the outdoor Use a dedicated power circuit for the backup heater and unit. -
Page 24: Connection Of The Thermostat Cable
Connection of the thermostat cable Connection of the valve control cables Connection of the thermostat cable depends on the application. Valve requirements ■ See also "3.4. Typical application examples" on page 5 Power supply: 230 V AC "8.2. Room thermostat installation configuration" on page 24 for more ■... -
Page 25: Connection To A Benefit Kwh Rate Power Supply
When the outdoor unit is connected to a benefit kWh rate power INFORMATION supply, the voltage free contact of the receiver controlling the benefit kWh rate signal of the electricity company must be connected to Bottom plate heater is only applicable in combination with clamps 17 and 18 of X2M (as illustrated in the figure above). -
Page 26: Relocation Of The Digital Controller
7.4. Relocation of the digital controller Connect the terminals on top of the front part of the digital controller and the terminals inside the unit (P1 to 16, P2 to 16a). The digital controller is from factory located on the indoor unit. (See "5.2. -
Page 27: Room Thermostat Installation Configuration
p p p p r r r r Thermostat Configuration Pump operation switch No thermostat • SS2-3=OFF determined by Description leaving water • wiring: (non) temperature Not applicable for installer — (Default) Domestic hot water tank Installed Not installed installation (Default) 1 2 3 4 (see... -
Page 28: Domestic Hot Water Tank Installation Configuration
8.5. Initial start-up at low outdoor ambient Dual set point temperatures p p p p r r r r Configuration Pump operation During initial start-up and when water temperature is low, it is • [7-02]=1 determined by leaving water temperature •... -
Page 29: Powering Up The Indoor Unit
8.8. Setting the pump speed Fixation Check that the unit is properly fixed, to avoid abnormal noises The pump speed can be selected on the pump (see "5.2. Main and vibrations when starting up the unit. components" on page 11). Damaged equipment The default setting is high speed (III). -
Page 30: Detailed Description
Press the z button for a minimum of 5 seconds to enter FIELD [1] Weather dependent set point SET MODE. The weather dependent set point field settings define the parameters The $ icon (3) will be displayed. The current selected field for the weather dependent operation of the unit. - Page 31 [2] Disinfection function [3] Auto restart Applies only to installations with a domestic hot water tank. When power returns after a power supply failure, the auto restart function reapplies the user interface settings at the time of the power The disinfection function disinfects the domestic hot water tank by supply failure.
- Page 32 INFORMATION NOTICE ■ When setting [4-03]=1/2/3/4, the booster heater When the priority field setting is set to OFF (0), operation can still be restricted by the schedule make sure that electrical power consumption does timer as well. I.e., when booster heater operation not exceed supply limits.
- Page 33 Only for EKHTS: If the storage temperature set point temperature. is higher than 50°C, Daikin advises not to disable the backup heater second step because it will have a big INFORMATION...
- Page 34 [6] DT for heat pump domestic water heating mode/scheduled WARNING storage and reheat domestic water heating Be aware that the domestic hot water temperature will be DT for heat pump domestic water heating mode automatically increased with the value selected in field Applies only to installations with a domestic hot water tank.
- Page 35 (1)(2) Scheduled reheat domestic water heating INFORMATION ■ [6-05] Reheat: defines whether the scheduled domestic ■ Make sure that the domestic hot water set point is water reheat during daytime is enabled (1) or continuous according to your requirements. reheat is enabled (2) or reheat is disabled (0) Start with a low domestic hot water storage set point, ■...
- Page 36 Dual set point control WARNING Applies only to installations with different heat emitter which require Be aware that the domestic hot water temperature will be different set points. automatically increased (always) with the value selected in Dual set point control makes it possible to generate 2 different set field setting [7-00] compare to the user set point for points.
- Page 37 ■ [8-03] Booster heater delay time (only for EKHW*) [8] Domestic water heating mode timer specifies the start-up time delay of the booster heater Applies only to installations with a domestic hot water tank. operation when heat pump domestic water heating mode is The 'domestic water heating mode timer' field settings defines the active.
- Page 38 ■ [8-04] Additional running time at [4-02]/[F-01]: specifies the Automatic setback function additional running time on the maximum running time at Setback function provides the possibility to lower the water outdoor temperature [4-02] or [F-01]. See figure below. temperature during space heating. The setback function can for instance be activated during the night because the temperature Heating Cooling...
- Page 39 — based on the outdoor temperature — which heating the domestic water heating mode. The domestic source can/will provide the space heating, either the Daikin indoor hot water is still and only heated by the indoor unit or an auxiliary boiler.
- Page 40 If [d-01]=0, the unit is connected to a normal power supply Daikin shall not be held liable for any damage resulting (default value). from failure to observe this rule. If [d-01]=1 or 2, the unit is connected to a benefit kWh rate power supply.
- Page 41 Local shift value weather dependent [F] Option setup The local shift value weather dependent field setting is only relevant Pump operation in case weather dependent set point (see field setting "[1] Weather The pump operation field setting apply to the pump operation logic dependent set point"...
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Page 42: Field Settings Table
8.10. Field settings table Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit User permission level User permission level — Weather dependent set point Low ambient temperature (Lo_A) –10 –20~5 °C... - Page 43 Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Equilibrium temperature and space heating priority temperature Equilibrium temperature status (only in combination with domestic hot water tank without electrical 1 (ON) —...
- Page 44 Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Heating and cooling set point ranges Heating set point upper limit 37~55 °C Heating set point lower limit 15~37 °C Cooling set point upper limit...
- Page 45 Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Option setup Pump operation stop — (enabled) Space cooling permission temperature 10~35 °C Bottom plate heater ON temperature 3~10 °C Bottom plate heater hysteresis...
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Page 46: Test Run And Final Check
9.3. Underfloor heating screed dry-out program EST RUN AND FINAL CHECK This function allows the installer to define and automatically execute The installer is obliged to verify correct operation of the indoor and an "underfloor heating screed dry-out" program. outdoor unit after installation. The program is used to dry-out the screed of an underfloor heating during the construction of a house. -
Page 47: Getting Started
Activate Getting started INFORMATION ■ Each action is executed with a programmed heating set point for a programmed time (steps of 12 hours). The activation of the "Underfloor heating screed dry-out program" is similar to the starting the Test run ■... -
Page 48: Maintenance And Service
10. M AINTENANCE AND SERVICE Opening the unit In order to ensure optimal availability of the unit, a number of checks To execute the maintenance activities as mentioned below, it is only and inspections on the unit and the field wiring have to be carried out required to remove the indoor unit cover. -
Page 49: Troubleshooting
11.2. General symptoms INFORMATION Refer to the service manual to carry out any service mode Symptom 1: The unit is turned on (y LED is lit) but the unit is operation. not heating or cooling as expected OSSIBLE CAUSES ORRECTIVE ACTION 11. - Page 50 Symptom 4: The water pressure relief valve opens Symptom 8: [4-03] and maximum tank set point is not according to the applicable tank OSSIBLE CAUSES ORRECTIVE ACTION In case of domstic hot water tank with built-in electrical booster The expansion vessel is broken. Replace the expansion vessel.
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Page 51: Error Codes
11.3. Error codes Error code Failure cause Corrective action When a safety device is activated, the user interface LED will be Too low (during cooling Contact your local dealer. flashing, and an error code will be displayed. operation) or too high (during heating operation) refrigerant A list of all errors and corrective actions can be found in the table temperature (measured by R3T) - Page 52 Error code Failure cause Corrective action Electric component failure Contact your local dealer. PCB failure Contact your local dealer. Electric component failure Contact your local dealer. Failure of capacity setting Contact your local dealer. Refrigerant failure (due to Contact your local dealer. refrigerant leak) Main circuit voltage failure Contact your local dealer.
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Page 53: Technical Specifications
12. T ECHNICAL SPECIFICATIONS 12.1. General Heating/cooling models (EKHBX) Heating only models (EKHBH) Nominal capacity • cooling Refer to the Technical Data • heating Refer to the Technical Data Dimensions H x W x D 922 x 502 x 361 922 x 502 x 361 Weight •... -
Page 54: Appendix
PPENDIX (for restricted power supply condition mode only) INFORMATION INFORMATION All information and settings in the manual are applicable for Emergency backup heater operation always has this system, except information settings priority over compressor or booster heater operation. mentioned in this appendix. Emergency backup heater operation occurs because of: ■... -
Page 55: Typical Application Examples
PPENDIX (for restricted power supply condition mode only) Connection to benefit kWh rate power supply Space heating For applications with restricted power supply condition mode, it is not The outdoor unit (1) will operate to achieve the target leaving water recommended to connect the system to a benefit kWh rate power temperature as set on the user interface. -
Page 56: Overview Of The Indoor Unit
PPENDIX (for restricted power supply condition mode only) VERVIEW OF THE INDOOR UNIT LECTRICAL WIRING WORK 5.2. Main components 7.3. System overview of field wiring The backup heater (2) consists of an electrical heating element in the Connection to a benefit kWh rate power supply backup heater vessel that will provide heating capacity to the water circuit in case of malfunction ot he outdoor unit. - Page 57 PPENDIX (for restricted power supply condition mode only) [4] Booster heater operation and space heating off temperature WARNING [4-00] and [4-01] are not applicable for installations with restricted Be aware that the domestic hot water temperature at the power supply condition mode. hot water tap will be equal to the value selected in field Space heating off temperature setting [2-03] after a disinfection operation.
- Page 58 PPENDIX (for restricted power supply condition mode only) [8] Domestic water heating mode timer ■ [8-03] Booster heater delay time: This field setting is not applicable for installations with restricted power supply condition mode. [C] Additional external backup heater permission signal [C-02]=2 This field setting is not applicable for installations with restricted...
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Page 59: Field Settings Table
PPENDIX (for restricted power supply condition mode only) 8.10. Field settings table Installer setting at variance with default value First Second Default value code code Setting name Date Value Date Value Range Step Unit User permission level User permission level —... - Page 60 PPENDIX (for restricted power supply condition mode only) Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit DT for heat pump domestic water heating mode Start 2~20 °C Stop 0~10...
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Page 61: Troubleshooting
PPENDIX (for restricted power supply condition mode only) Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Restricted power supply condition mode/local shift value weather dependent Not applicable. Do not change the default value. 0/1/2/3 —... - Page 64 4PW62570-1A 01.2011...