Altherma EKHBHE008AA3V3 Installation Manual Download Page 24

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Installation manual

EKHBH/XE008AA3V3

Indoor unit for air to water heat pump system

4PW48441-1B

Restricted power supply condition mode

Not applicable. Do not change the default value!

—

Not applicable. Do not change the default value!

—

Not applicable. Do not change the default value!

—

Unit information readout

Software version

Read

only

—

EEPROM version

Read

only

—

Unit model identification

Read

only

—

Liquid refrigerant temperature

Read

only

—

°C

Inlet water temperature

Read

only

—

°C

First
code

Second
code

Setting name

Installer setting at variance with default value

Default

value

Range

Step

Unit

Date

Value

Date

Value

Summary of Contents for EKHBHE008AA3V3

Page 1: ...INSTALLATION MANUAL EKHBHE008AA3V3 EKHBXE008AA3V3 Indoor unit for air to water heat pump system For installation WITH restricted power supply condition 6 kW ...

Page 2: ...2 3 350 300 48 361 48 142 101 502 500 2 3 4 5 96 35 668 895 922 235 1 G 1 1 2 male G 1 male 2x 2x 1x 1x 1x 1x 1x 2x 1 2 3 4 5 6 7 8 1 3 1 2 ...

Page 3: ...reversible air to water Daikin ERHQ heat pumps These units are designed for wall mounted indoor installation and used for both heating and cooling applications The units can be combined with Daikinfan coil units floor heating applications low temperature radiators domestic water heating applications and solar kit for domestic hot water applications Heating cooling units and heating only units The ...

Page 4: ... up for example Refer to Initial start up at low outdoor ambient temperatures on page 15 and Re start at low outdoor ambient temperatures on page 15 During heating operation the water temperature becomes too low and drops out of the operation range Refer to Checking the water volume and expansion vessel pre pressure on page 10 to minimize the backup heater operation Malfunction of the heat pump un...

Page 5: ...unit is described in the indoor unit operation manual EK HB XE 008 AA 3 V3 Backup heater nominal voltage V3 1P 230 V Backup heater capacity kW Series Indication of heating cooling capacity kW a a For exact values refer to Technical specifications on page 26 XE heating and cooling HE heating only Hydro box European kit EK HB DP 150 Drain pan Hydro box European kit 1 Installation manual 2 Operation ...

Page 6: ...mperature In case of cooling mode the motorised 2 way valve 13 will close as to prevent cold water running through the floor heating loops FHL The ON OFF setting of the heating cooling operation is done by the room thermostat and cannot be done by the user interface on the indoor unit 1 Outdoor unit 10 Booster heater 2 Indoor unit 11 Heat exchanger coil 3 Heat exchanger 12 Domestic hot water tank ...

Page 7: ...ndoor unit cover can be removed by removing the 2 side screws and unhitching the cover To gain access to the switch box components e g to connect the field wiring the switch box service panel can be removed Thereto loosen the front screws and unhitch the switch box service panel 1 Outdoor unit 14 Motorised 2 way valve for activation of the room thermostat field supply 2 Indoor unit 3 Heat exchange...

Page 8: ...ing with the drain and fill valves 16 Manometer The manometer allows readout of the water pressure in the water circuit 17 Flow switch The flow switch checks the flow in the water circuit and protects the heat exchanger against freezing and the pump against damage 18 Pump The pump circulates the water in the water circuit 19 Backup heater vessel The backup heater heats the water in the backup heat...

Page 9: ...he K3M connector only for installations with domestic hot water tank 12 X9A socket The X9A socket receives the thermistor connector only for installations with domestic hot water tank 13 In line fuse FU2 14 Transformer TR1 15 A4P Solar remote alarm address card only for installations with solar kit or remote alarm kit 16 K7M relay for solar pump optional This relay and its output on X2M can be act...

Page 10: ...t be checked and any damage must be reported immediately to the carrier claims agent Check if all indoor unit accessories see Accessories on page 3 are enclosed Bring the unit as close as possible to its final installation position in its original package in order to prevent damage during transport The indoor unit weighs approximately 50 kg and should be lifted by two persons using the two lifting...

Page 11: ...wing points The maximum water pressure is 3 bar Two shut off valves are delivered with the unit To facilitate service and maintenance install one at the water inlet and one at the water outlet of the indoor unit Mind position of the shut off valves Orientation of the integrated drain and fill valves is important for servicing See figure 3 Drain taps must be provided at all low points of the system...

Page 12: ...ter volume using the graph below 2 Check that the total water volume in the entire water circuit is lower than this value If this is not the case the expansion vessel inside the indoor unit is too small for the installation If the heating load is higher than the backup heater capacity the water temperature can not increase In this case refer to Re start at low outdoor ambient temperatures on page ...

Page 13: ... by opening the pressure relief valve Water must flow out of the valve Piping insulation The complete water circuit inclusive all piping must be insulated to prevent condensation during cooling operation and reduction of the cooling and heating capacity If the temperature is higher than 30 C and the humidity is higher than RH 80 then the thickness of the sealing materials should be at least 20 mm ...

Page 14: ...e indoor unit side is to be made on the terminal block inside the switch box To gain access to the terminal block remove the indoor unit cover and switch box service panel see Opening the indoor unit on page 5 Cable tie mountings are provided at the bottom of the switch box Fix all cables using cable ties field supply A dedicated power circuit is required for the backup heater Installations equipp...

Page 15: ...ure 1 Using the appropriate cable connect the power circuit to the main circuit breaker as shown on the wiring diagram and the illustration below 2 Connect the earth conductor yellow green to the earthing screw on the X1M terminal 3 Fix the cable with cable ties to the cable tie mountings to ensure strain relief Note only relevant field wiring is shown Connection of the thermostat cable Connection...

Page 16: ...d 10 are electrified the domestic hot water circuit is selected Spring return 2 wire valve SPST 3 wire valve NC 5 X2M 6 7 M NO 5 6 X2M 7 M 9 X2M 8 10 M 9 X2M 8 10 M It is important that all information in this chapter is read sequentially by the installer and that the system is configured as applicable Switch off the power supply before opening the switch box service panel and making any changes t...

Page 17: ...ratures When re starting at low ambient temperature it is important to ensure that the unit operates within its operation range as soon as possible water temperature 30 C by reducing the load as much as possible during start up This procedure is applicable whenever the water temperature is out of the operation range e g after long period of stand still For example You can do this by switching off ...

Page 18: ...2 turns 11 Pressure relief valve Check if the backup heater vessel is completely filled with water by operating the pressure relief valve It should purge water instead of air 12 Shut off valves Make sure that the shut off valves are correctly installed and fully open Powering up the indoor unit When power supply to the indoor unit is turned on 88 is displayed on the user interface during its initi...

Page 19: ...t point field settings define the parameters for the weather dependent operation of the unit When weather dependent operation is active the water temperature is determined automatically depending on the outdoor temperature colder outdoor temperatures will result in warmer water and vice versa During weather dependent operation the user has the possibility to shift up or down the target water tempe...

Page 20: ...the optional booster heater operation is enabled 1 or limited 0 Tt Target water temperature TA Ambient outdoor temperature Shift value The disinfection function field settings must be configured by the installer according to national and local regulations TDHW Domestic hot water temperature TU User set point temperature as set on the user interface TH High set point temperature 2 03 t Time Lo_Ti L...

Page 21: ...atedly turning on and off i e chattering to maintain the domestic hot water set point temperature Note the booster heater will turn back on when the domestic hot water temperature drops 2 C fixed value below the booster heater OFF temperature 7 00 Domestic hot water step length temperature difference above the domestic hot water set point temperature before the booster heater is turned off Before ...

Page 22: ...eaving water temperature for cooling operation 9 03 Cooling set point lower limit minimum leaving water temperature for cooling operation 9 04 Overshoot setting defines how much the water temperature may rise above the setpoint before the compressor stops This function is only applicable in heating mode C Solar priority mode C 00 For information concerning the EKSOLHW solar kit refer to the instal...

Page 23: ...ce heating off temperature 25 14 25 1 C 03 Booster heater operation 1 0 1 5 Space heating priority temperature 00 Not applicable Do not change the default value 1 01 Not applicable Do not change the default value 0 02 Not applicable Do not change the default value 0 03 Not applicable Do not change the default value 0 04 Not applicable Do not change the default value 10 6 DT for domestic water heat...

Page 24: ...nge the default value 0 02 Not applicable Do not change the default value 1 E Unit information readout 00 Software version Read only 01 EEPROM version Read only 02 Unit model identification Read only 03 Liquid refrigerant temperature Read only C 04 Inlet water temperature Read only C First code Second code Setting name Installer setting at variance with default value Default value Range Step Unit ...

Page 25: ...a licensed electrician for maintenance purposes MAINTENANCE In order to ensure optimal availability of the unit a number of checks and inspections on the unit and the field wiring have to be carried out at regular intervals The described checks must be executed at least once a year 1 Water pressure Check if the water pressure is above 0 3 bar If necessary add water 2 Water filter Clean the water f...

Page 26: ...ation is above the minimum required value refer to Checking the water volume and expansion vessel pre pressure on page 10 POSSIBLE CAUSES CORRECTIVE ACTION The unit must start up out of its operation range the water temperature is too low In case of low water temperature the system utilizes the backup heater to reach the minimum water temperature first 15 C Check that the backup heater power suppl...

Page 27: ... the thermal protector Secondary thermal protector is open applies only to units with a EKHWSU domestic hot water tank installed Reset the thermal protector Backup heater thermal protector is open Reset the thermal protector by pressing the reset button refer to Main components on page 6 for location of the reset button Check the reset button of the thermal protector If both the thermal protector ...

Page 28: ... kg 50 kg operation weight 65 kg 65 kg Connections water inlet outlet G1 male G1 male water drain hose nipple hose nipple refrigerant liquid side Ø6 4 mm 1 4 inch Ø6 4 mm 1 4 inch refrigerant gas side Ø15 9 mm 5 8 inch Ø15 9 mm 5 8 inch Expansion vessel volume 10 l 10 l maximum working pressure MWP 3 bar 3 bar Pump type water cooled water cooled no of speed 3 3 Sound pressure level a 28 dBA 28 dBA...

Page 29: ...NOTES NOTES ...

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