Related Manuals for Daikin VRV HXY48TAVJU
Summary of Contents for Daikin VRV HXY48TAVJU
- Page 1 INSTALLATION AND OPERATION MANUAL System indoor unit English Français Español HXY48TAVJU...
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Page 2: Table Of Contents
Installation and VRV System indoor unit HXY48TAVJU operation manual Content 9. Hand-over to the user .............. 26 Page 10. Operation of the unit ..............26 1. Safety considerations..............2 10.1. Introduction .................. 26 2. About the documentation ............3 10.1.1. General information............ -
Page 3: Safety Considerations
• Do not change the setting of the protection devices. If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Daikin are used, fire or explosion may occur. Installation and operation manual... -
Page 4: About The Documentation
(b) Where corrosive gas, such as sulfurous acid gas, CAUTION is produced. • Do not touch the switch with wet fingers. Touching a Corroding copper pipes or soldered parts may switch with wet fingers can cause electric shock. result in refrigerant leakage. •... -
Page 5: Scope Of The Manual
Installation/operation manual Latest revisions of the supplied documentation may be available on INFORMATION the regional Daikin website or via your dealer. Do NOT throw away the upper cardboard cover. On the inside of the cardboard cover, the installation pattern is printed. -
Page 6: About The Unit And Options
This installation manual concerns VRV indoor unit air to water Note: The user interface can display temperatures in Celsius only. inverter heat pump units of the Daikin HXY48 series. This unit is intended for indoor installation and aimed for commercial TEMPERATURE CONVERSION TABLE and public buildings. -
Page 7: Possible Combinations Of Indoor Unit And Outdoor Unit
Setting up the space heating/cooling system Cost effective. You do NOT need an additional external room The Daikin heat pump system supplies leaving water to heat emitters thermostat. in one or more rooms. High comfort and efficiency. The smart room thermostat ... -
Page 8: Using An Auxiliary Heat Source
NOTE Make sure the auxiliary boiler and its integration in the system complies with applicable legislation. Daikin is NOT responsible for incorrect or unsafe situations in the auxiliary boiler system. Make sure the return water to the heat pump does NOT exceed 113°F (45°C). -
Page 9: Preparing Water Circuit
Note: If the sound is measured under actual installation conditions, the measured value will be higher than the sound pressure level mentioned Sound spectrum environmental noise and sound reflections. The foundation must be strong enough to bear the weight of the ... -
Page 10: Formula To Calculate The Expansion Vessel Pre-Pressure
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 may damage the unit and will NOT be removed by the standard filter of the heat pump system. -
Page 11: Changing The Pre-Pressure Of The Expansion Vessel
6.3. Preparing electrical wiring 6.2.5. Changing the pre-pressure of the expansion vessel 6.3.1. About preparing electrical wiring NOTE Only a licensed installer may adjust the pre-pressure of the WARNING expansion vessel. Establish proper earthing. Do NOT earth the unit to a ... -
Page 12: Overview Of Electrical Connections On The Indoor Unit
Installation 6.3.2. Overview of electrical connections on the indoor unit The following illustration shows the required field wiring. Before installing, first read the instructions of previous chapter. INFORMATION INFORMATION The following illustration is an example and may NOT Installation shall be done by an installer, the choice of match your system layout. -
Page 13: To Install The Drainpan Kit
For details concerning vacuuming and operating the unit during vacuuming, see installation manual of outdoor unit. For details concerning piping sizes and refnet selection, see installation manual of the outdoor unit. NOTE Do NOT put power on the unit before vacuuming is completed. -
Page 14: To Install The Bottom Plate And Connect Safety Valve Drain Hose
7.2.2. To install the bottom plate and connect safety valve NOTE drain hose The water pressure needle on the manometer will vary depending on the water temperature (higher pressure at higher water temperature). However, at all times water pressure shall remain above 14.5 psi (1 bar) to avoid air entering the circuit. -
Page 15: Water Quality Requirements
7.2.4. Water quality requirements Cooling water Hot water system Tendency circulation system Item Circulation Make-up Circulation Make-up Corrosion Scale water water water water (68~140°F) (20~60°C) Standard items pH (77°F (25°C)) 6.5~8.2 6.0~8.0 7.0~8.0 ○ ○ Electrical conductivity (mS/ft (mS/m)) (77°F (25°C)) <24.4 (80) <9.1 (30) <9.1 (30) -
Page 16: System Overview Of Field Wiring
Routing of the wiring inside the unit and switchbox should be as NOTE follows: The equipment described in this manual may cause Take out rubber bushing electronic noise generated from radio-frequency energy. from the unit The equipment complies to specifications that are designed to provide reasonable protection against such interference. - Page 17 Fixation of the user interface to the indoor unit Fixation of the user interface to the wall in case of installation as room thermostat INFORMATION Cut off a 2 wire conductor. For connection to the switchbox see "7.3.5. To connect the Fix the wallplate of the user interface to the wall.
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Page 18: Finishing The Indoor Unit Installation
Commissioning 7.4. Finishing the indoor unit installation 7.4.1. To fix the user interface cover to the indoor unit Make sure that the front panel is removed from the indoor unit. NOTE See To open the indoor unit. It is important that all information in this chapter is read Plug the hinges into the backside of the front panel. -
Page 19: Final Air Purging
Repeat step 2 through 4 to change other field settings as NOTE required. Operating the system with closed valves will damage the When finished, press the z button to exit FIELD SET MODE. pump! INFORMATION Once all checks are fulfilled, the unit must be closed, only then can ... - Page 20 By default no level is defined so all buttons and functions are Operation example: Schedule timer based on temperature set operable. points. The actual permission level is determined by field setting. For When setback function (refer to "[2] Automatic setback function" on permission level 2, set field setting [0-00] to 2, for permission page 20) is enabled, the setback operation will have priority over the level 3, set field setting [0-00] to 3.
- Page 21 Operation example: Schedule timer based on ON/OFF instruction. When setback function (refer to "[2] Automatic setback function" on page 20) is enabled, the setback operation will have priority over the 70°F (21°C) scheduled action in the schedule timer if ON instruction is active. If OFF instruction is active this will have priority over the setback 64°F function.
- Page 22 Note that the Lo_Ti value should be higher than Hi_Ti, as for colder [9-02] Setting is not applicable. outdoor temperatures (i.e. Lo_A) warmer water is required. [9-03] Leaving water temperature compensation value for [3-03] Set point at high ambient temperature (Hi_Ti): the target cooling operation.
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Page 23: Field Setting List For Installation Manual
8.4. Field setting list for Installation Manual Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Remote control setup User permission level. — Room temperature compensation value. 32 (0) 23~41 (–5~5) 0.9 (0.5) - Page 24 Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Option setup Not applicable. Do not change the default value. — — — Not applicable. Do not change the default value. —...
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Page 25: Final Check And Test Run
8.5. Final check and test run Temperature read-out mode On the user interface, the actual temperatures can be displayed. 8.5.1. Final check Push and hold the ba button for 5 seconds. Before switching on the unit, read the following: The leaving water temperature is displayed (icons l and = When the complete installation and all necessary settings have ... -
Page 26: Service And Maintenance
8.6. Service and maintenance 8.6.2. Malfunction codes list Malfunction In order to ensure optimal operation of the unit, a number of checks code Failure cause Corrective action and inspections on the unit and the field wiring have to be carried out Failure of writing memory Contact your local dealer. -
Page 27: Operation Manual
Hand-over to the user 10. Operation of the unit Once the test run is finished and the unit operates properly, please Please read chapter 1 and 2 first before consulting this chapter. make sure the following is clear for the user: WARNING Fill in the installer setting table (see chapter 10) with the actual ... -
Page 28: Operating The Unit
10.3. Operating the unit 10.3.2. Name and function of buttons and icons 6 22 CAUTION Do not rinse the unit. This may cause electric shock or fire. Do not climb, sit or stand on top of the unit. Do not place any objects or equipment on the unit top ... -
Page 29: Setting Up The Controller
28 TIME ADJUST BUTTONS Permission These multi-purpose buttons are used to adjust the clock, to Main level 2 level 3 toggle between temperatures (water inlet/outlet temperature of the unit, outdoor ambient temperature, actual room temperature) Operation ON/OFF and in schedule timer programming mode. Setting the leaving water temperature —... -
Page 30: Space Cooling Operation (C)
10.3.4. Space cooling operation (c) The purpose of each operation and how the configuration is done, is explained below. Space cooling operation can be controlled in two different ways: Room temperature control based on room temperature, In this mode, heating will be activated as required by the room based on leaving water temperature (default). - Page 31 Icon a will be displayed as long as the weather dependent set INFORMATION point operation is enabled. While room temperature setback function is active, Press the ba button to deactivate weather dependent set point leaving water setback operation is also performed. operation.
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Page 32: Other Operation Modes
The setback function is configured through field settings. Refer to the 10.3.8. Schedule timer operation chapter "8.3. Field settings" on page 18 for a detailed description how In schedule timer operation, the installation is controlled by the to set one or more field settings. schedule timer. - Page 33 Operation example: Schedule timer based on temperature set Operation example: Schedule timer based on ON/OFF instruction points When setback function is enabled, the setback operation will have When setback function is enabled, the setback operation will have priority over the scheduled action in the schedule timer if ON priority over the scheduled action in the schedule timer.
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Page 34: Programming And Consulting The Schedule Timer
10.3.10. Programming and consulting the schedule timer Programming Getting started Programming space cooling Programming the schedule timer is flexible (you can add, remove or alter programmed actions whenever required) and straightforward (programming steps are limited to a minimum). However, before programming the schedule timer, remind: Familiarize yourself with the icons and the buttons. - Page 35 Programming space cooling is carried out as follows: Programming space heating INFORMATION Returning to previous steps in the programming procedure without saving modified settings is done by pressing the pr button. Press the < button to enter the programming/consulting mode. Select the operation mode you would like to program by means of the pi and pj buttons.
- Page 36 Programming space heating is carried out as follows: Consulting programmed actions Consulting space heating/cooling actions INFORMATION Consulting space cooling heating or space heating is carried out as Returning to previous steps in the programming procedure follows. without saving modified settings is done by pressing the pr button.
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Page 37: Operating The Optional Demand Pcb
Deleting one or more programmed actions 10.3.11. Operating the optional demand PCB Deleting one or more programmed actions is done at the same time An optional PCB EKRP1AHTA can be connected to the unit and be as storing the programmed actions. used to remotely control the unit When all actions for one day have been programmed, make sure that There are 2 inputs that allow... -
Page 38: Procedure
10.4.1. Procedure To change one or more field settings, proceed as follows. Press the z button for a minimum of 5 seconds to enter FIELD SET MODE. The $ icon (3) will be displayed. The current selected field setting code is indicated ; (2), with the set value displayed to the right - (1). -
Page 39: Maintenance
This maintenance should be a b c carried out by your local Daikin technician (see installation manual). The only maintenance which may be required by the operator is: ... -
Page 40: Wiring Diagram
13.2. Wiring diagram POWER SUPPLY 1~208/230V 60Hz Q1DI -t° -t° -t° -t° X14A X17A X12A X18A X16A Cooling / X27A heating output: X30A (L1)1 max 0.3A, 230V AC (L2)3 F1F2 COMMUNICATION SEE OUTDOOR UNIT FOR Operation MORE DETAILS on/off output: max 0.3A, X35A:1 230V AC... -
Page 41: Electrical Components Box
13.3. Electrical components box Heating mode 68*/60.8 (20*/16) -4/-4 (-20/-20) (20) (25) (45) a Outdoor unit Ta (°FDB/°FWB) (Ta (°CDB/°CWB)) b LWT (°F) (LWT (°C)) c Startup area d Continuous heating * Maximum 75.2°FDB (24°CDB) 13.5. ESP curve a A1P: main PCB b A3P: control PCB c A4P: optional demand PCB d X2M: terminal strip... - Page 42 Daikin Texas Technology Park, 19001 Kermier Road, Waller, TX, 77484, U.S.A. 3P616151-1A EM21A030 2021.12...