Daikin EKHBX008BB3V3S Installation Manual

Contents

Daikin EKHBX008BB3V3S Installation Manual Manual pdf 14 page image

Installation manual11 EKHBX008BB3V3SIndoor unit for air to water heat pump system4PW62597-1 – 10.20101. Air purge valveRemaining air in the water circuit will be automatically removedvia the air purge valve.2. Backup heater (1)The backup heater consists of an electrical heating element inthe backup heater vessel that will provide additional heatingcapacity to the water circuit if the heating capacity of the outdoorunit is insufficient due to low outdoor temperatures.3. Temperature sensorsFour temperature sensors determine the water and refrigeranttemperature at various points in the water circuit.4. Switch boxThe switch box contains the main electronic and electrical partsof the indoor unit.5. Heat exchanger6. Expansion vessel (10 l)7. User interfaceThe user interface allows the installer and user to set up, useand maintain the unit.8. Refrigerant liquid connection9. Refrigerant gas connection10. Shut-off valves (accessory)The shut-off valves on the water inlet connection and wateroutlet connection allow isolation of the indoor unit water circuitside from the residential water circuit side. This facilitatesdraining and filter replacement of the indoor unit.11. Water inlet connection12. Water outlet connection13. Drain and fill valves14. Water filterThe water filter removes dirt from the water to prevent damageto the pump or blockage of the evaporator. The water filter mustbe cleaned on a regular base. See "10. Maintenance andservice" on page 44.15. ManometerThe manometer allows readout of the water pressure in thewater circuit.16. Flow switchThe flow switch checks the flow in the water circuit and protectsthe heat exchanger against freezing and the pump againstdamage.17. Backup heater thermal protectorThe backup heater is equipped with a thermal protector. Thethermal protector is activated when the temperature becomestoo high.18. Backup heater thermal fuseThe backup heater is equipped with a thermal fuse. The thermalfuse is blown when the temperature becomes too high (higherthan the backup heater thermal protector temperature).19. Pressure relief valveThe pressure relief valve prevents excessive water pressure inthe water circuit by opening at 3 bar and discharging somewater.20. Pressure relief valve hoseThe actual outlet of the pressure relief valve. Make sure toprovide a proper drain.5.3. Switch box main components1. Backup heater contactors K1M and K5M.2. Main PCBThe main PCB (Printed Circuit Board) controls the functioning ofthe unit.3. Booster heater contactor K3M (only for installations withdomestic hot water tank) (2)4. Booster heater circuit breaker F2B (only for installations withdomestic hot water tank) (3)The circuit breaker protects the booster heater in the domestichot water tank against overload or short circuit.5. Backup heater circuit breaker F1BThe circuit breaker protects the backup heater electrical circuitagainst overload or short circuit.6. Terminal blocksThe terminal blocks allow easy connection of field wiring.7. Cable tie mountingsThe cable tie mountings allow to fix the field wiring with cableties to the switch box to ensure strain relief.8. Terminal blocks X3M, X4M (only for installations with domestichot water tank) (4)9. PCB fuse FU110. DIP switch SS2The DIP switch SS2 provides 4 toggle switches to configurecertain installation parameters. See "8.1. DIP switch settingsoverview" on page 23.11. X13A socketThe X13A socket receives the K3M connector (only forinstallations with domestic hot water tank).(1) When the unit is configured for restricted power supply condition mode,see "Appendix" on page 50.(2) Only applicable for tank with built-in electrical booster heater (EKHW*).(3) Only applicable for tank with built-in electrical booster heater (EKHW*).(4) Only applicable for tank with built-in electrical booster heater (EKHW*).K4MTR1K1M K2M K5MK3M K6MF2B F1BX1MX7M X3MX2M X4MA1PA4P1512111091666123513878X9AX13ASS2FU2FU141417