Daikin RWEYQ8T9Y1B Installer And User Manual Download Page 45

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12 Technical data

Installer and user reference guide

RWEYQ8~1 RWEYQ8~14T9Y1B
VRV IV water-cooled system air conditioner
4P452191-1 – 2017.04

12.3

Piping diagram: Outdoor unit

HPS

SENPH

SENPL

4D108945A

Charge port

Stop valve (with service port

∅

7.9 mm flare

connection)

Cooling water inlet

Cooling water outlet

Charge port / Service port

Filter

Check valve

Pressure relief valve

Solenoid valve

Capillary tube

Electronic expansion valve

4‑way valve

Propeller fan

Port (for sensor)

Low/high pressure sensor

High pressure switch

Oil separator

Accumulator

Compressor

Double tube heat exchanger

Liquid receiver

Thermistor

Summary of Contents for RWEYQ8T9Y1B

Page 1: ...er and user reference guide VRV IV water cooled system air conditioner English Installer and user reference guide VRV IV water cooled system air conditioner RWEYQ8T9Y1B RWEYQ10T9Y1B RWEYQ12T9Y1B RWEYQ...

Page 2: ...refrigerant piping 23 6 4 4 To connect the refrigerant piping to the outdoor unit 23 6 4 5 To connect the multi connection piping kit 24 6 4 6 To connect the refrigerant branching kit 24 6 4 7 To pro...

Page 3: ...ymptoms that are NOT system malfunctions 53 19 2 1 Symptom The system does not operate 53 19 2 2 Symptom Cool Heat cannot be changed over 53 19 2 3 Symptom Fan operation is possible but cooling and he...

Page 4: ...tal above a certain concentration Possible chemical symbols are Pb lead 0 004 Waste batteries must be treated at a specialized treatment facility for reuse By ensuring waste batteries are disposed of...

Page 5: ...ou can collect all refrigerant from the system into the outdoor unit Possible consequence Self combustion and explosion of the compressor because of air going into the operating compressor Use a separ...

Page 6: ...ey do not come in contact with the piping and sharp edges Make sure no external pressure is applied to the terminal connections Make sure to install earth wiring Do NOT earth the unit to a utility pip...

Page 7: ...erview About the box This chapter describes what you have to do after the box with the outdoor unit is delivered on site It contains information about Unpacking and handling the outdoor unit Removing...

Page 8: ...as pipe Front connection a a b Top connection c d 8 25 4 25 4 25 4 19 1 10 22 2 12 28 6 14 High pressure Low pressure gas pipe Front connection a a b Top connection c d 8 25 4 25 4 25 4 15 9 10 19 1 1...

Page 9: ...for single or multi use Depending on the chosen type of unit some functionality will or will not exist It will be indicated throughout this installation manual and brought to your attention Certain fe...

Page 10: ...IV water cooled system can be combined with several types of indoor units and is intended for R410A use only For an overview which units are available you can consult the product catalogue for VRV IV...

Page 11: ...ed Instructions group or individual can be instructed for low noise operation and power consumption limitation operation PC configurator cable EKPCCAB You can make several commissioning field settings...

Page 12: ...piping may result in indoor water leakage and property damage 5 2 2 Securing safety against refrigerant leaks About safety against refrigerant leaks The installer and system specialist shall secure s...

Page 13: ...ly to the greenhouse effect if it is released Therefore pay special attention to check the tightness of the installation NOTICE The piping and other pressure containing parts shall be suitable for ref...

Page 14: ...ed downstream Do not let the connection piping exceed the refrigerant piping size chosen by the general system model name In case of heat pump mode Indoor unit capacity index Piping outer diameter siz...

Page 15: ...5T Concerning refnet headers choose from the following table in accordance with the total capacity of all the indoor units connected below the refnet header Indoor unit capacity index 2 pipes 3 pipes...

Page 16: ...up the liquid piping refer to 5 3 2 To select the piping size on page 13 for more information Activate the outdoor unit setting Refer to the service manual for more information The outdoor unit is pos...

Page 17: ...pe Maximum length actual equivalent Longest pipe from the outdoor unit or the last multi outdoor piping branch 1 2 1 3 4 1 3 5 6 1 3 5 7 100 m 120 m Longest pipe after the first branch 3 4 3 5 6 3 5 7...

Page 18: ...n 90 m size up the main liquid piping according to 5 3 2 To select the piping size on page 13 Connection with only VRV DX indoor units H3 1 5 H1 H2 3 2 4 a b b c d b b a Outdoor unit b VRV DX indoor u...

Page 19: ...ee carbon dioxide mg CO2 l 4 0 0 4 4 0 Stability index 6 0 7 0 a These items represent typical causes of corrosion and scale b In a condenser water circuit that uses a closed cooling tower the closed...

Page 20: ...mplete drainage of the water circuit Drainage Clogging Make sure that the water runs smoothly without any clogging by dirt Drainage Lateral length Lateral length of drainage should be as short as poss...

Page 21: ...flow rate B is directly related to the maximum flow rate of the system INFORMATION Some third party valves pumps have a maximum flow rate defined by the hardware of the system but a different maximum...

Page 22: ...mmended fuse capacity would be 80 A NOTICE When using residual current operated circuit breakers be sure to use a high speed type 300 mA rated residual operating current 6 Installation 6 1 Overview In...

Page 23: ...ossible risks Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency Toxic gas may be produced if refrigerant gas comes into contact with fire WARNING Always recover the r...

Page 24: ...can be ensured 120 mm 500 mm 6 4 6 To connect the refrigerant branching kit For installation of the refrigerant branching kit refer to the installation manual delivered with the kit Mount the refnet...

Page 25: ...the stop valve cap 1 2 3 4 To close the stop valve 1 Remove the stop valve cover 2 Insert a hexagon wrench into the stop valve and turn the stop valve clockwise 3 When the stop valve cannot be turned...

Page 26: ...e Blow out any particles with compressed air 7 Wait until all oil is dripped out before continuing with the connection of the field piping in case the recovery was not complete 6 5 Checking the refrig...

Page 27: ...Open Valve D Open Liquid line stop valve Close Gas line stop valve Close High pressure low pressure gas line stop valve Close NOTICE The connections to the indoor units and all indoor units should al...

Page 28: ...higher than the indoor unit this must be prevented by sealing up the connections See below figure 3 a b a Insulation material b Caulking etc 6 7 Charging refrigerant 6 7 1 Precautions when charging re...

Page 29: ...5 mm 0 16 16 mm 0 18 19 1 mm 0 26 18 mm 0 24 22 2 mm 0 37 22 mm 0 35 Connection ratio requirements When selecting indoor units the connection ratio must comply with the following requirements For more...

Page 30: ...efrigerant charge mode Refer to 7 2 8 Mode 2 Field settings on page 38 for details Result The unit will start operation 9 Valve A can be opened Charging of remaining additional refrigerant can be done...

Page 31: ...LECTROCUTION WARNING All field wiring and components must be installed by a licensed electrician and must comply with the applicable legislation WARNING If NOT factory installed a main switch or other...

Page 32: ...d the transmission wiring separated from each other In order to avoid any electrical interference the distance between both wiring should always be at least 25 mm NOTICE Be sure to keep the power line...

Page 33: ...O IN D UNIT TO OUT D UNIT F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 j i i h h e a Unit A master outdoor unit b Unit B slave outdoor unit c Unit C slave outdoor unit d Outdoor unit PCB A1P e Master slave tra...

Page 34: ...the cup washer An improper earth connection may prevent a good earthing from being achieved The power supply must be clamped to the plastic bracket using field supplied clamp material The green and ye...

Page 35: ...sult in unintended forced thermo off conditions Example X3M X3M YLW a b c d e ORG RED BRN BLU BLU WHT WHT BLK BLK BLK TW1 IN TW2 OUT WHT BLU BLU BLU YLW ORG RED BRN 0 10 1 2 3 4 5 6 7 8 9 10 X2M b a X...

Page 36: ...mponent box to access the push buttons on the PCB and read out the 7 segment display s To access you can remove the front inspection cover of the front plate see figure Now you can open the inspection...

Page 37: ...push BS1 for more than 5 seconds you can select the wanted setting It is done by pushing BS2 Accessing the selected setting s value is done by pushing BS3 1 time To quit and return to the initial sta...

Page 38: ...tion 1 13 Shows the total number of connected outdoor units in case of multiple outdoor system It can be convenient to check if the total number of outdoor units which are installed matches the total...

Page 39: ...l is according to the table 2 30 Power consumption limitation approximately 1 60 2 65 3 default 70 4 75 5 80 6 85 7 90 2 30 Power consumption limitation approximately 8 95 2 31 Power consumption limit...

Page 40: ...unit but the connected indoor unit will operate as well Working on an indoor unit while performing a test operation is dangerous CAUTION Do not insert fingers rods or other objects into the air inlet...

Page 41: ...applicable legislation Make sure that following components are positioned at their correct places water filter air purge valve automatic water supply valve and expansion tank Water circuit Make sure...

Page 42: ...rant charge in kg 1000 9 1 Overview Maintenance and service This chapter contains information about Preventing electrical hazards when maintaining and servicing the system Cleaning the plate heat exch...

Page 43: ...gerant This should be done by a refrigerant reclaimer Follow the same procedure as for vacuuming method DANGER RISK OF EXPLOSION Pump down Refrigerant leakage If you want to pump down the system and t...

Page 44: ...ce guide 44 RWEYQ8 14T9V1B RWEYQ8 14T9Y1B VRV IV water cooled system air conditioner 4P452191 1 2017 04 mm 500 500 900 900 20 20 20 20 20 20 F mm 300 F Front side INFORMATION Further specifications ca...

Page 45: ...PL 4D108945A A Charge port B Stop valve with service port 7 9 mm flare connection C Cooling water inlet D Cooling water outlet Charge port Service port Filter Check valve Pressure relief valve Solenoi...

Page 46: ...e T 3 15 A 250 V F401U A2P Fuse T 6 3 A 250 V F402U A2P Fuse T 6 3 A 250 V F403U A2P Fuse T 6 3 A 250 V F410U A2P Fuse T 63 A 600 V F411U A2P Fuse T 63 A 600 V F412U A2P Fuse T 63 A 600 V F U A1P Fuse...

Page 47: ...s may happen For checking and adjusting the internal parts contact your dealer This operation manual will give a non exhaustive overview of the main functions of the system Detailed information on req...

Page 48: ...energy transfer to the outdoor unit s coil Heating capability decreases and the system needs to go into defrost operation to be able to deliver enough heat to the indoor units In case of Then RWEYQ16...

Page 49: ...49 for details To stop 4 Press the ON OFF button on the user interface once again Result The operation lamp goes out and the system stops operating NOTICE Do not turn off power immediately after the u...

Page 50: ...our room causing a decrease in the cooling or heating effect Be careful not to cool or heat too much To save energy keep the temperature setting at a moderate level Never place objects near the air in...

Page 51: ...tips and procedures for cleaning are provided in the installation operation manuals of dedicated indoor units Make sure to install cleaned air filters back in the same position Turn on the power at le...

Page 52: ...unit Depending on the model we recommend not starting and stopping the machine more than 6 times hour Operation of the unit is assumed to be 10 hours day and 2 500 hours year NOTICE The table indicat...

Page 53: ...he level of the malfunction code reset the code by pushing the ON OFF button If not ask your installer for advice 19 2 Symptoms that are NOT system malfunctions The following symptoms are NOT system m...

Page 54: ...e tone of operating noise changes This noise is caused by the change of frequency 19 2 12 Symptom Dust comes out of the unit When the unit is used for the first time in a long time This is because dus...

Page 55: ...t how to install configure operate and or maintain the product or application Accessories Labels manuals information sheets and equipment that are delivered with the product and that need to be instal...

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