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EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

Installation manual

16

Air vents must be provided at all high points of the system. The
vents should be located at points which are easily accessible for
servicing. An automatic air purge is provided inside the indoor
unit. Check that this air purge valve is not tightened too much so
that automatic release of air in the water circuit remains
possible.

Take  care that the components installed in the field piping can
withstand the water pressure and water temperature.

Always use materials which are compatible with water used in
the system and with the materials used on the indoor unit.

If air, moisture or dust gets in the water circuit, problems may occur.
Therefore, always take into account the following when connecting
the water circuit:

Use clean pipes only.

Hold the pipe end downwards when removing burrs.

Cover the pipe end when inserting it through a wall so that no
dust and dirt enter.

Use a good thread sealant for the sealing of the connections.

When using non-brass metallic piping, make sure to insulate
both materials from each other to prevent galvanic corrosion.

Because brass is a soft material, use appropriate tooling for
connecting the water circuit. Inappropriate tooling will cause
damage to the pipes.

Select piping diameter in relation to required water flow and
available external static pressure of the pump.

The minimum required water flow for the indoor unit operation is
12 l/min. When the water flow is lower than this minimum value,
flow error 

7H

  will be displayed and the operation of the indoor

unit will be stopped.

Never use Zn-coated parts in the water circuit. Excessive
corrosion of these parts may occur as copper piping is used in
the unit's internal water circuit.

When using a 3-way valve in the water circuit.
It is very important to guarantee full separation between
domestic hot water and floor heating water circuit.

When using a 3-way valve or a 2-way valve in the water circuit,
the maximum change over time of the valve shall be less than
60 seconds.

Checking the water volume and expansion vessel 
pre-pressure

The unit is equipped with an expansion vessel of 10 litre which has a
default pre-pressure of 1 bar.

To  assure proper operation of the unit, the pre-pressure of the
expansion vessel might need to be adjusted and the minimum and
maximum water volume must be checked.

1

Check that the total water volume in the installation, excluding
the internal water volume of the indoor unit, is 10 l minimum.
Refer to 

"12. Technical specifications" on page 50

  to know the

internal water volume of the indoor unit.

(1)

2

Using the table below, determine if the expansion vessel pre-
pressure requires adjustment.

NOTICE

It is strongly recommended to install an additional filter on
the heating water circuit. Especially to remove metallic
particles from the field heating piping, it is advised to use a
magnetic or cyclone filter which can remove small
particles. Small particles can damage the unit and will not
be removed by the standard filter of the heat pump unit.

(1) When the unit is configured for restricted power supply condition mode, 

see 

"Appendix" on page 51

.

INFORMATION

In most applications this minimum water volume will have a
satisfying result.

In critical processes or in rooms with a high heat load
though, extra water volume might be required.

NOTICE

When circulation in each space heating loop is controlled
by  remotely controlled valves, it is important that this
minimum water volume is kept even if all the valves are
closed.

Example

1

Outdoor unit

2

Indoor unit

3

Heat exchanger

4

Backup heater

5

Pump

6

Shut-off valve

7

Collector (field supply)

8

By-pass valve (field supply)

FHL1...3

Floor heating loop

T1...3

Individual room thermostat (optional)

M1...3

Individual motorised valve to control the floor 
heating loop (field supply)

FHL1

FHL2

FHL3

M1

T1

M2

T2

M3

T3

8

6

4

5

3

2

1

6

7

Содержание EKHBH008BB Series

Страница 1: ...KHBH008BB EKHBX008BB Indoor unit for air to water heat pump system EKHBH008BB3V3 EKHBH008BB6V3 EKHBH008BB6WN EKHBH008BB6T1 EKHBH008BB9WN EKHBH008BB9T1 EKHBX008BB3V3 EKHBX008BB6V3 EKHBX008BB6WN EKHBX00...

Страница 2: ...90 30 3 4 35 48 142 101 502 2 3 4 5 48 39 96 361 1 1 2 MBSP 1 MBSP 895 922 830 469 260 B B T T 2 350 300 500 1 2x 2x 1x 1x 1x 1 2 3 4 5 1 2 3 4...

Страница 3: ...le prescrizioni per 07 v v v 08 de acordo com o previsto em 09 10 under iagttagelse af bestemmelserne i 11 enligt villkoren i 12 gitt i henhold til bestemmelsene i 13 noudattaen m r yksi 14 za dodr e...

Страница 4: ...8 2 Room thermostat installation configuration 24 8 3 Pump operation configuration 24 8 4 Domestic hot water tank installation configuration 25 8 5 Initial start up at low outdoor ambient temperature...

Страница 5: ...eration of the unit always contact your local dealer for advice and information Improper installation or attachment of equipment or accessories could result in electric shock short circuit leaks fire...

Страница 6: ...eater 4 Equilibriumtemperature can be set through the user interface refer to 8 9 Field settings on page 26 TA Ambient outdoor temperature PH Heating capacity Domestic hot water tank option 2 An optio...

Страница 7: ...interrupted Refer to Connection to a benefit kWh rate power supply on page 22 for more details 3 2 Scope of this manual This manual does NOT include the selection procedure and the water system desig...

Страница 8: ...l FHL1 3 Floor heating loop T1 3 Individual room thermostat optional M1 3 Individual motorised valve to control the floor heating loop field supply Pump operation With no thermostat connected to the i...

Страница 9: ...e pump will start operating and the indoor unit 2 will switch to heating mode cooling mode The outdoor unit 1 will start operating to achieve the target leaving hot cold water temperature In case of c...

Страница 10: ...ication 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 c...

Страница 11: ...heater EKHW M FHL1 FHL2 FHL3 8 8 9 9 12 11 6 10 4 5 3 2 1 6 7 13 14 15 1 2 3 4 K1A K1A K2A X Y K2A BTI L N EKHB auto Boiler A EKHB X2M H Com NOTICE Configuration A Make sure that auxiliary contact A...

Страница 12: ...mostat for zone B optional NOTICE Make sure that return water to the EKHB heat exchanger never exceeds 55 C For this reason never put the target leaving water temperature set point on the boiler contr...

Страница 13: ...r unit on page 10 Make sure to configure the field settings 7 02 7 03 and 7 04 correctly Refer to Dual set point control on page 33 Make sure to configure the DIP switch SS2 3 on the PCB of the EKHBH...

Страница 14: ...t 11 Water inlet connection 12 Water outlet connection 13 Drain and fill valves 14 Water filter The water filter removes dirt from the water to prevent damage to the pump or blockage of the evaporator...

Страница 15: ...er tank 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 i...

Страница 16: ...Electromagnetic waves may disturb the control system and cause malfunction of the equipment Where the air contains high levels of salt Where voltage fluctuates a lot such as that in factories In vehi...

Страница 17: ...e marks 2 by 2 are completely level and the dimensions of the marks are corresponding according to figure 4 When the unit is not installed level air might get trapped in the water circuit resulting in...

Страница 18: ...oor heating loop T Room thermostat optional Provide adequate safeguards in the water circuit to be sure that the water pressure will never exceed the maximum allowable working pressure 4 bar Two shut...

Страница 19: ...o guarantee full separation between domestic hot water and floor heating water circuit When using a 3 way valve or a 2 way valve in the water circuit the maximum change over time of the valve shall be...

Страница 20: ...r in and outlet 6 9 Charging water 1 Connect the water supply to a drain and fill valve see 5 2 Main components on page 11 2 Make sure the automatic air purge valve is open at least 2 turns 3 Fill wit...

Страница 21: ...ic hot water thermistor S1L Flow switch S2S Benefit kWh rate power supply contact S3S Dual set point 2 contact S4S Dual set point 1 contact SS1 DIP switch TR1 Transformer 24 V for PCB V1S Spark suppre...

Страница 22: ...r tank with built in electrical booster heater EKHW T I M M B D 2 6 12 7 8 9 E A L 3 F K I C J H G 1 10 11 13 4 5 Item Description Required number of conductors Maximum running current 1 Power supply...

Страница 23: ...ow 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 wiri...

Страница 24: ...requirements Power supply 230 V AC Maximum running current 100 mA Wiring the 2 way valve 1 Using the appropriate cable connect the valve control cable to the X2M terminal as shown on the wiring diagra...

Страница 25: ...kWh rate power supply is interrupted after elapse of time Type 3 This type of benefit kWh rate power supply is interrupted immediately Connect the indoor unit to a normal kWh rate power supply If the...

Страница 26: ...configured by the installer to match the installation environment outdoor climate installed options etc and user expertise 8 1 DIP switch settings overview DIP switch SS2 is located on the switch box...

Страница 27: ...p when there is a simultaneous demand for more space heating cooling and domestic water heating a Only applicable in case DIP switch 2 ON Heating cooling priority Priority to highest demand side b b H...

Страница 28: ...p heater type Refer to the wiring diagram 5 Booster heater circuit breaker F2B 2 Do not forget to turn on the booster heater circuit breaker F2B in the switch box applies only to units with optional d...

Страница 29: ...rocess the user interface cannot be operated 8 8 Setting the pump speed The pump speed can be selected on the pump see 5 2 Main components on page 11 The default setting is high speed III If the water...

Страница 30: ...int at low ambient temperature Lo_Ti the target outgoing water temperature when the outdoor temperature equals or drops below the low ambient temperature Lo_A Note that the Lo_Ti value should be highe...

Страница 31: ...be configured by the installer according to the applicable legislation WARNING Be aware that the domestic hot water temperature at the hot water tap will be equal to the value selected in field settin...

Страница 32: ...KHTS The operation of the backup heater can altogether be enabled disabled or limited 4 00 Status defines whether backup heater operation is disabled 0 enabled 1 or limited 2 When 4 00 2 the backup he...

Страница 33: ...ll only be heated by the booster heater 5 02 Space heating priority status specifies whether space heating priority is enabled 1 or disabled 0 5 03 Space heating priority temperature outdoor temperatu...

Страница 34: ...mp will be stopped by switching the 3 way valve The heat pump OFF temperature and the heat pump ON temperature and its relation with field settings 6 00 and 6 01 are explained in the illustration belo...

Страница 35: ...ater to a temperature a few degrees above the set point temperature i e the booster heater OFF temperature These extra degrees are specified by the domestic hot water step length field setting Correct...

Страница 36: ...s 2 C fixed below heat pump OFF temperature THP OFF INFORMATION There is no indication available which set point is active NOTICE The first set point heating cooling is the set point selected on the u...

Страница 37: ...n the unit is configured to work with a room thermostat refer to 8 2 Room thermostat installation configuration on page 24 the maximum running timer will only be taken into account when there is a req...

Страница 38: ...Leaving water setback value A Normal leaving water temperature set point or calculated weather depended set point B Calculated leaving water setback temperature set point t Time T Temperature In case...

Страница 39: ...on is disabled the space heating by indoor unit is possible at all outdoor temperatures see operation ranges and permission signal for auxiliary boiler is always disactivated C 02 Bivalent operation s...

Страница 40: ...ode 5 When parameter d 01 2 at the moment that the benefit kWh rate signal is sent by the electricity company that contact will close and the unit will go in forced off mode 6 1 When the unit is confi...

Страница 41: ...permission F 01 Space cooling permission temperature defines the outdoor temperature below which space cooling is turned off Bottom plate heater control Applies only to installation with an outdoor un...

Страница 42: ...estic hot water tank without electrical booster heater EKHTS 4 03 5 60 fixed 5 C 03 Set point only in combination with domestic hot water tank with built in electrical booster heater EKHW 4 03 5 70 55...

Страница 43: ...torage start time 1 00 0 00 23 00 1 00 hour 05 Scheduled time reheat or continuous reheat 0 OFF 0 1 2 1 06 Scheduled time reheat start time 15 00 0 00 23 00 1 00 hour 07 Domestic hot water reheat set...

Страница 44: ...itional external backup heater temperature 0 25 25 1 C 04 Bivalent hysteresis or additional external backup heater hysteresis 3 2 10 1 C 05 Not applicable d Benefit kWh rate power supply local shift v...

Страница 45: ...on number selection 1 1 20 1 06 Heating set point of selected action number F 05 25 0 c 15 55 1 C 07 Time of selected action number F 05 0 c 0 72 12 hour 08 Underfloor heating screed dry out program e...

Страница 46: ...es or when reaching the set temperature The test run operation can be stopped manually by pressing the z button once If there are misconnections or malfunctions an error code will be displayed on the...

Страница 47: ...out program as follows 1 Set in F 08 Underfloor heating screed dry out program enabled disabled to 1 enabled 2 When finished press the z button to exit the FIELD SET MODE 2 Activate 1 Push the z butt...

Страница 48: ...M applications with domestic hot water tank only and K4M by use of an ohmmeter All contacts of these contactors must be in open position DANGER ELECTRIC SHOCK Before carrying out any maintenance or re...

Страница 49: ...and immediately after operation See 2 General safety precautions on page 2 INFORMATION For problems related to the optional solar kit for domestic water heating refer to the troubleshooting in the ins...

Страница 50: ...kup heater operation status field setting 4 00 is turned on see 8 9 Field settings on page 26 Check whether or not the thermal protector of the backup heater has been activated refer to Main component...

Страница 51: ...sured by R3T Contact your local dealer AA Backup heater thermal protector is open Reset the thermal protector by pressing the reset button refer to 5 2 Main components on page 11 for location of the r...

Страница 52: ...re The error can only be reset in the test mode as follows First press the z button 4 times so the t icon will be displayed Then press the y button 1 time Finally push the z button to exit the test mo...

Страница 53: ...refrigerant gas side 15 9 mm 5 8 inch 15 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 lev...

Страница 54: ...ackup heater operation occurs because of User request to heat up water to the space heating loops The temperature of this water is too low and is out of the operation range during initial start up for...

Страница 55: ...oil or the electrical booster heater 3 or backup heater 4 When the domestic hot water temperature is below the user configured set point the 3 way valve will be activated to heat the domestic hot wate...

Страница 56: ...s with restricted power supply condition mode it is not recommended to connect the system to a benefit kWh rate power supply All items related to benefit kWh rate power supply should be neglected 8 ST...

Страница 57: ...e for installations with restricted power supply condition mode 6 DT for heat pump domestic water heating mode scheduled storage and reheat domestic water heating 6 03 6 08 are not applicable for inst...

Страница 58: ...ition mode d 02 shall be set to 1 to activate the total restricted power consumption Do not change this value Local shift value weather dependent The local shift value weather dependent field setting...

Страница 59: ...le disable 0 OFF 0 1 06 Low ambient temperature Lo2_A 20 10 25 1 C 07 High ambient temperature Hi2_A 35 25 43 1 C 08 Set point at low ambient temperature Lo2_Ti 22 5 22 1 C 09 Set point at high ambien...

Страница 60: ...95 5 min 02 Anti recycling time 3 0 10 0 5 hour 03 Not applicable 04 Additional running time at 4 02 F 01 95 0 95 5 min 9 Heating and cooling set point ranges 00 Heating set point upper limit 55 37 5...

Страница 61: ...d only 01 EEPROM version Read only 02 Unit model identification Do not change the default value depending on model 03 Liquid refrigerant temperature Read only 1 C 04 Inlet water temperature Read only...

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Страница 64: ...4PW62570 1A 01 2011 Copyright 2010 Daikin...

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