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HXY48TAVJU EDUS392021-F18

3.  System Layout

3.1  System Layout

Refrigerant piping

VRV

 indoor unit

Total capacity of connected 

VRV

 indoor unit

requires at least 

50%

 of outdoor unit capacity.

Cold water / Hot water

Heat exchange

between refrigerant

and water

Underfloor heating

Radiator

Ceiling radiator

Low-temperature 

hydrobox

The following table indicates the connectable number and capacity range of the low-temperature hydrobox and indoor units.

Please refer the dedicated Engineering Data Book for the specification of respective indoor units.

ton

6

8

10

12

14

Minimum 

VRV

  indoor unit number

1

Minimum 

VRV

  indoor unit capacity ratio

50% or more

Max hydrobox number

1

1

2

2

2

Total indoor capacity ratio range

50-130%

3.2  Connection Ratio

When connecting the low-temperature hydrobox, connect 

VRV

 indoor units of its total capacity at least 50% of the outdoor unit capability to prevent 

the secondary side water temperature from dropping or freezing during defrosting or ON/OFF of the indoor unit.

Содержание VRV HXY48TAVJU

Страница 1: ...Low temperature hydrobox HXY48TAVJU EDUS392021 F18 202009 Engineering Data 60 Hz...

Страница 2: ......

Страница 3: ...tio 4 4 Nomenclature 5 5 Specifications 6 6 Dimensions 7 7 Piping Diagrams 8 8 Wiring Diagrams 9 9 Electric Characteristics 11 10 Pump Performance Characteristics 12 11 Capacity 13 12 Center of Gravit...

Страница 4: ...temperature range from 50 to 113 F 10 to 45 C without electric heater Super wide operating range for hot cold water production from 4 to 110 F 20 to 43 C ambient outdoor temperature Saves time on syst...

Страница 5: ...HXY48TAVJU VJ VJ 1 phase 208 230 V 60 Hz 1 Low temperature hydrobox index for calculating system capacity shows in below table Please use the index at system connection ratio calculation Target T dif...

Страница 6: ...of the low temperature hydrobox and indoor units Please refer the dedicated Engineering Data Book for the specification of respective indoor units ton 6 8 10 12 14 Minimum VRV indoor unit number 1 Min...

Страница 7: ...2021 F18 4 Nomenclature Minor revision Power supply symbol VJ 1 phase 208 230V 60Hz Indicates minor change category Indicates major design category Capacity index 48 48 000 Btu h Low temperature hydro...

Страница 8: ...C 5 4 to 14 4 3 to 8 Control method Inlet Outlet delta T control Outlet temp range Cooling F C 50 to 68 10 to 20 Heating F C 77 to 113 25 to 45 Ambient temp range Cooling F C 50 to 109 10 to 43 Heatin...

Страница 9: ...7 HXY48TAVJU EDUS392021 F18 6 Dimensions HXY48TAVJU 3D128656 Unit in mm...

Страница 10: ...F18 7 Piping Diagrams HXY48TAVJU 3D079034 THERMISTOR R1T R2T R3T R4T DESCRIPTION OUTLET WATER HEAT EXCHANGER THERMISTOR INLET WATER HEAT EXCHANGER THERMISTOR REFRIGERANT LIQUID SIDE THERMISTOR REFRIGE...

Страница 11: ...9 HXY48TAVJU EDUS392021 F18 8 Wiring Diagrams HXY48TAVJU C 3D128650...

Страница 12: ...efrigerant gas thermistor C1 C3 Filter capacitor S1L Flow switch F1U Fuse T 3 15A 250V SS1 A1P Selector switch emergency HAP PCB LED SS1 A2P Selector switch main sub K1E Electronic expansion valve SS1...

Страница 13: ...7 V 2 5 15 135 Symbol MCA Min Circuit Amps A MOP Max Overcurrent Protective Device A Note 1 Voltage range Units are suitable for use on electrical systems where voltage supplied to unit is not below o...

Страница 14: ...3D128653 ESP External Static Pressure Flow Water flow through the unit Note Selecting a flow outside the operating area can damage the unit or cause the unit to malfunction See also the minimum and m...

Страница 15: ...13 HXY48TAVJU EDUS392021 F18 11 Capacity...

Страница 16: ...14 HXY48TAVJU EDUS392021 F18 12 Center of Gravity HXY48TAVJU 4D129458...

Страница 17: ...15 HXY48TAVJU EDUS392021 F18 13 Operation Limits HXY48TAVJU 3D128655 Ta Ambient Temperature LWT Leaving Water Temperature...

Страница 18: ...16 HXY48TAVJU EDUS392021 F18 C 4P616151 1 14 Accessories Option HXY48TAVJU Drain pan EKHBDPCA2 Remote user interface EKRUAHTB 4D128652...

Страница 19: ...late of the user interface Be careful NOT to damage it Fixation of the user interface to the wall in case of installation as room thermostat 1 Cut off a 2 wire conductor 2 Fix the wallplate of the use...

Страница 20: ...e M Master Only the remote controller set as master can work as room thermostat How to connect for multi unit INFORMATION For multiple unit control connect the remote controller to the unit as instruc...

Страница 21: ...ctionality 5 DAY OF THE WEEK INDICATOR 1234567 This indicator shows the current day of the week When reading or programming the schedule timer the indicator shows the set day 6 CLOCK DISPLAY 8 The clo...

Страница 22: ...he installation manual for more information 20 TEST OPERATION ICON t This icon indicates that the unit runs in test mode 21 FIELD SET CODE This code represents the code from the field set list Refer t...

Страница 23: ...r dependent set point operation is selected the unit has a floating set point In this case the a icon as well as the shift value in case not zero will display 30 ROOM TEMPERATURE ADJUST BUTTONS bi and...

Страница 24: ...8 16 Drain Pan EKHBDPCA2 C 4P325064 2C 4x x 6 4x 4x B A C D E F G H 1 2 3 4 5 1 2 60 mm 60 mm 2x 2 1 1 1 0 1 9 9 8 7 x 6 2x 3x 3x 6x A A E F G H E x 1 3 1 4 1 5 1 6 1 7 1 8 1 5 4 3 2 1 8 7 6 C D C B B...

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Страница 28: ...explosion Use only those parts and accessories supplied or specified by Daikin Ask a qualified installer or contractor to install those parts and accessories Use of unauthorised parts and accessories...

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