Daikin SERHQ020BAW1 Installer And User Reference Manual Download Page 48

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12 Technical data

Installer and user reference guide

SERHQ020~0 SEHVX20~64BAW

Split packaged air-cooled water chiller

4P508020-1B – 2018.04

12.4

Piping diagram: Outdoor unit

SENPH

HPS

STD

INV

SENPL

HPS

SENPH

SENPL

HPS

INV

STD1

STD2

20 kW

m m

32 kW

Check valve

Electronic expansion valve

Pressure regulating valve

Filter

Fan

Heat exchanger

Accumulator

4-way valve

High pressure sensor

High pressure switch

Solenoid valve

Compressor

Capillary tube

Oil separator

Low pressure sensor

Stop valve (with service port on on-site piping side 7.9 mm
flare connection)

Summary of Contents for SERHQ020BAW1

Page 1: ...user reference guide Split packaged air cooled water chiller English Installer and user reference guide Split packaged air cooled water chiller SERHQ020BAW1 SERHQ032BAW1 SEHVX20BAW SEHVX32BAW SEHVX40B...

Page 2: ...component box of the outdoor unit 17 6 2 5 To open the electrical component box of the indoor unit 18 6 3 Mounting the outdoor unit 18 6 3 1 About mounting the outdoor unit 18 6 3 2 Precautions when m...

Page 3: ...m 59 16 3 3 Space cooling operation 59 16 3 4 Space heating operation 59 16 3 5 Other operation modes 60 16 3 6 Schedule timer 60 16 3 7 Operating the optional demand PCB 64 16 3 8 Operating the optio...

Page 4: ...operate the unit contact your dealer NOTICE Improper installation or attachment of equipment or accessories could result in electric shock short circuit leaks fire or other damage to the equipment On...

Page 5: ...After all the piping has been connected make sure there is no gas leak Use nitrogen to perform a gas leak detection NOTICE To avoid compressor breakdown do NOT charge more than the specified amount of...

Page 6: ...When installing the earth leakage protector make sure it is compatible with the inverter resistant to high frequency electric noise to avoid unnecessary opening of the earth leakage protector NOTICE...

Page 7: ...ation What to do and know to configure the system after it is installed Operation Operation of the units Commissioning What to do and know to commission the system after it is configured Hand over to...

Page 8: ...sion effect may decrease 3 2 3 To remove the accessories from the outdoor unit Make sure that all accessories are available in the unit 1 1 1 1 1 1 1 e a c d f g b a General safety precautions b Fluor...

Page 9: ...g the split system with options Where the outdoor and indoor units fit in the system layout 4 2 Identification NOTICE When installing or servicing several units at the same time make sure NOT to switc...

Page 10: ...n area Heating 0 35 25 5 15 5 EWC 20 25 35 50 LWC TA A B TA Ambient temperature C DB LWC Leaving water condenser temperature C EWC Entering water condenser temperature C A Pull up area B Standard wate...

Page 11: ...ause water leakage NOTICE This is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures CAUTION Applian...

Page 12: ...cause water leakage NOTICE This is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures CAUTION Appli...

Page 13: ...ticles entering the pipe Use a decent thread sealant to seal connections Capacity class Minimum required flow rate 20 23 l min 32 36 l min 40 46 l min 64 72 l min Field supply components Water pressur...

Page 14: ...152 64 220 INFORMATION In critical processes or in rooms with a high heat load extra water might be required INFORMATION The temperature step difference can be modified using settings A 02 and F 00 Th...

Page 15: ...to account Only use dry nitrogen to set the expansion vessel pre pressure Inappropriate setting of the expansion vessel pre pressure will lead to malfunction of the system Changing the pre pressure of...

Page 16: ...25 1639 SEHVX64BAW 0 22 1747 The local wiring power cord must comply with IEC60245 The wiring type in protected pipes must be H05VV H07RN F must be used in unprotected pipes 5 5 3 Cable requirements I...

Page 17: ...e outdoor unit on page 17 For service purposes the pushbuttons on the main PCB need to be accessed To access these pushbuttons the electrical component box cover does not need to be opened See 7 2 3 T...

Page 18: ...allowed O Allowed The height of the foundation must at least be 150 mm from the floor In heavy snowfall areas this height should be increased depending on the installation place and condition The pre...

Page 19: ...the top plate b a a Attach one L shaped support to the left side of the top plate using 2 screws from the accessory bag b Attach the other L shaped support to the right side of the top plate using 1...

Page 20: ...The following illustrations show each part required in handling the valve c d a b a Service port and service port cover b Stop valve c Field piping connection d Stop valve cover a b c d e a Service po...

Page 21: ...refrigerant gas leaks ventilate the area immediately Possible risks Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency Toxic gas may be produced if refrigerant gas co...

Page 22: ...lowing remaining oil to drip out in case the recovery was not complete Wait until all oil has dripped out 8 Cut the pinched piping off with a pipe cutter just above the brazing point or just above the...

Page 23: ...when checking the refrigerant piping INFORMATION Also read the precautions and requirements in the following chapters General safety precautions Preparation NOTICE Use a 2 stage vacuum pump with a no...

Page 24: ...s Preparation WARNING Only use R410A as refrigerant Other substances may cause explosions and accidents R410A contains fluorinated greenhouse gases Its global warming potential GWP value is 2087 5 Do...

Page 25: ...es 2 1 1 1 2 2 kg tCO2 eq GWP kg 1000 kg kg GWP XXX RXXX a f c d e a If a multilingual fluorinated greenhouse gases label is delivered with the unit see accessories peel off the applicable language an...

Page 26: ...be at least 13 mm with 0 039 W mK If the temperature is higher than 30 C and the humidity is higher than RH 80 the thickness of the insulation materials should be at least 20 mm to prevent condensati...

Page 27: ...ler refer to the installation manual of the central remote controller NOTICE Use insulated wire for the power cord NOTICE Be sure to install an earth leakage breaker that is capable of handling high f...

Page 28: ...power supply To route and fix the power supply of the outdoor unit Route the power wiring and the transmission wiring through a conduit hole Route the power wiring though the upper hole in the left s...

Page 29: ...to the same earth SERHQ020 a g c d b i g e j h f f f SERHQ032 f f g g i h e j f a c d b f f a Electrical wiring b Wiring between units c Earth wire d Clamp to the electrical component box with field s...

Page 30: ...als as shown on the wiring diagram 3 Fix the cables with cable ties to the cable tie mountings to ensure strain relief and to make sure that they do not come in contact with the piping and sharp edges...

Page 31: ...al noise Peel the shield for the part that has to pass through the inside of the user interface case L L 4 Reattach the upper part of the user interface starting with the clips at the bottom 1 CAUTION...

Page 32: ...1 H1P is off 7 2 2 Field setting components The components to make field settings are as follows BS2 SET BS1 MODE BS3 RETURN BS4 TEST BS5 RESET H7P MODE TEST L N O P DEMAND C H SELECT HWL IND MASTER S...

Page 33: ...r unit and system What How Changing and accessing the setting in mode 2 Once mode 2 is selected push BS1 for more than 5 seconds you can select the wanted setting It is done by pushing BS2 Accessing t...

Page 34: ...ing night time By changing this setting you activate the automatic low noise operation function of the unit and define the level of operation Depending on the chosen level the noise level will be lowe...

Page 35: ...ate field setting first code 3 Press to select the appropriate field setting second code 4 Press and to change the value of the selected field setting 5 Press to save the new value 6 Repeat the previo...

Page 36: ...he last programmed command 16 00 overruled the previous programmed command 13 00 and will remain active until the next programmed command 19 00 occurs So in order to know the actual setting you should...

Page 37: ...emperature setpoint B Room setback temperature 5 03 t Time T Temperature Setback configured for leaving water temperature control 2 01 2 02 B A T t 45 C 40 C 5 C 5 02 A Normal leaving water temperatur...

Page 38: ...tat input 1 heating operation ON 1 OFF 0 External room thermostat input 2 cooling operation ON 1 OFF 0 2 External room thermostat input 1 operation ON 1 OFF 0 External room thermostat input 2 cooling...

Page 39: ...ving water setpoint in cooling operation This depends on field setting A 04 C 04 This setting is not applicable d Settings are not applicable E Service mode E 00 This setting is not applicable E 01 Th...

Page 40: ...e injury INFORMATION During the first running period of the unit the required power may be higher than stated on the nameplate of the unit This phenomenon is caused by the compressor that needs a cont...

Page 41: ...Be sure that the field wiring has been carried out according to the instructions described in the chapter 6 9 Connecting the electrical wiring on page 26 according to the wiring diagrams and according...

Page 42: ...performed according to the procedures described below At any time it is possible to check correct operation and space heating INFORMATION During the first start up of the unit the first 48 hours of co...

Page 43: ...in for each unit Ensure the user has a printed version of the installation and operation manual Explain to the user what system is installed on site Explain to the user how to properly operate the sys...

Page 44: ...ration and operation is prohibited 2 Evacuate the system with a vacuum pump 3 Press BS1 and reset setting mode 2 9 3 2 To recover refrigerant This should be done by a refrigerant reclaimer Follow the...

Page 45: ...l dealer R410A liquid thermistor error R13T R23T Check wiring connections Contact your local dealer Returning water thermistor error R12T R22T Check wiring connections Contact your local dealer Heatin...

Page 46: ...e obstacles the wall heights of sides A C have no impact on service space dimensions Refer to the figure for impact of wall heights of sides B D on service space dimensions In case of an installation...

Page 47: ...HVX20 64BAW Split packaged air cooled water chiller 4P508020 1B 2018 04 766 5 500 200 396 500 mm CAUTION Make sure the right service panel can still be removed after installation of the piping INFORMA...

Page 48: ...h i a a j j k k m l l m m o n n d d d d p d d d 20 kW a b b c d f e g h i a a a l o l l k k m m m m d d n n n d d d d d j j j d p d 32 kW a Check valve b Electronic expansion valve c Pressure regulati...

Page 49: ...A B h g k C D a Air purge valve b Temperature sensors R11T R12T R13T R14T c Expansion vessel 12 l d Shut off valve field installed e Water inlet connection f Water outlet connection g Drain port h Wa...

Page 50: ...or compressor M1F M2F Motor fan PS Switching power supply A1P A3P Q1DI Earth leakage circuit breaker field supply Q1RP Phase reversal detection circuit R1T Thermistor fin A2P R1T Thermistor air A1P R2...

Page 51: ...Leaving water thermistor circuit 1 R12T Returning water thermistor circuit 1 R13T Refrigerant liquid thermistor circuit 1 R14T Refrigerant gas thermistor circuit 1 R21T Leaving water thermistor circu...

Page 52: ...e 70 01 Not applicable Do not change the default value 10 02 Leaving water setback temperature 5 0 10 1 C 03 Room setback temperature 18 17 23 1 C 04 Not applicable Do not change the default value 1 6...

Page 53: ...cable Do not change the default value 40 E Service mode 00 Not applicable Do not change the default value 0 01 Not applicable Do not change the default value 0 02 Not applicable Do not change the defa...

Page 54: ...and setting via external control adapter NO YES 18 High static pressure setting OFF ON 22 Automatic night time low noise setting OFF Level 1 outdoor fan with step 6 or lower Level 2 outdoor fan with s...

Page 55: ...any quality deterioration do not use the unit for cooling precision instruments or works of art NOTICE For future modifications or expansions of your system A full overview of allowable combinations...

Page 56: ...al electronic parts WARNING This unit contains electrical and hot parts WARNING Before operating the unit be sure the installation has been carried out correctly by an installer NOTICE Never inspect o...

Page 57: ...ot place the user interface in a place exposed to direct sunlight The LCD display may get discoloured or fail to display the data NOTICE Do not place items which might be damaged by moisture under the...

Page 58: ...he system 16 3 1 About the clock INFORMATION The clock must be set manually Adjust the setting when switching from summertime to wintertime and vice versa The clock cannot be adjusted if the controlle...

Page 59: ...is then operated in the leaving water control mode and is not functioning as a room thermostat The remote controller ON OFF status always has priority over the external room thermostat INFORMATION Set...

Page 60: ...ferent levels of quiet mode operation The desired quiet mode is set through a field setting 1 Press to activate quiet mode operation Result appears on the display If the controller is set to permissio...

Page 61: ...C 1 OFF ON ON 6 30 0 30 B t 6 30 9 00 16 00 23 00 19 C 19 C 22 C 21 C 42 C 42 C 45 C 44 C 19 C 19 C 22 C 21 C 42 C 42 C 45 C 44 C 3 OFF ON ON 18 C 40 C 40 C 18 C 1 Schedule timer 2 Setback function 3...

Page 62: ...inking 4 Consult the action s using and 5 Hold down for 5 seconds to program the detailed actions Result The first programmed action appears 6 Select the action number you would like to program or to...

Page 63: ...ult If is pressed when action number 3 is displayed actions 1 2 and 3 are stored but action 4 is deleted You automatically return to step 6 Press several times to return to previous steps in this proc...

Page 64: ...imultaneously for 5 seconds 6 After 5 seconds the display will show the next day e g if was selected first This indicates that the day has been copied 7 Press to return to step 2 To delete a mode 1 Pr...

Page 65: ...ble Contact your dealer for more information When asking your dealer for an intervention always state The complete model name of the unit The manufacturing number stated on the nameplate of the unit T...

Page 66: ...f the unit with manufacturing number if possible and the installation date possibly listed on the warranty card 18 1 Error codes Overview In case a malfunction code appears on the indoor unit user int...

Page 67: ...certain product or application explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Maint...

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