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7 Troubleshooting

Installation and operation manual

9

LRYELRNUN5A7Y1
CO

 Conveni-Pack outdoor unit and capacity up unit

4P605461-1 – 2020.04

WARNING

Never replace a fuse with a fuse of a wrong ampere ratings
or  other  wires  when  a  fuse  blows  out.  Use  of  wire  or
copper wire may cause the unit to break down or cause a
fire.

CAUTION

Do  NOT  insert  fingers,  rods  or  other  objects  into  the  air
inlet  or  outlet.  Do  NOT  remove  the  fan  guard.  When  the
fan is rotating at high speed, it will cause injury.

CAUTION

After  a  long  use,  check  the  unit  stand  and  fitting  for
damage. If damaged, the unit may fall and result in injury.

NOTICE

Do  NOT  wipe  the  controller  operation  panel  with  benzine,
thinner,  chemical  dust  cloth,  etc.  The  panel  may  get
discoloured  or  the  coating  peeled  off.  If  it  is  heavily  dirty,
soak  a  cloth  in  water-diluted  neutral  detergent,  squeeze  it
well  and  wipe  the  panel  clean.  Wipe  it  with  another  dry
cloth.

6.1

About the refrigerant

This product contains refrigerant gases.

Refrigerant type: R744 (CO

2

)

WARNING

▪ Do NOT pierce or burn refrigerant cycle parts.

▪ Do  NOT  use  cleaning  materials  other  than  those

recommended by the manufacturer.

▪ Be  aware  that  the  refrigerant  inside  the  system  is

odourless.

WARNING

The  R744  refrigerant  (CO

2

)  inside  the  unit  is  odourless,

non-flammable and normally does NOT leak.

If the refrigerant leaks in high concentrations in the room, it
may  have  negative  effects  on  its  occupants  such  as
asphyxiation  and  carbon  dioxide  poisoning.  Ventilate  the
room and contact the dealer where you purchased the unit.

Do  NOT  use  the  unit  until  a  service  person  confirms  that
the  part  from  which  the  refrigerant  leaked  has  been
repaired.

Cylinder types

The  following  cylinder  types  are  used  to  charge  additional  R744
refrigerant:

d

e

a

b

c

a

Cylinder with a vapour take-off valve

b

Cylinder with a liquid take-off valve

c

Cylinder with 2 ports for take-off (vapour and liquid)

d

Vapour port

e

Liquid port

Phase diagram of R744

P (bar)

T (C°)

0

31

100

–80

1

5.2

73.8

–57

d

c

b

a

e

P

Pressure (in bar)

T

Temperature (in °C)

a

Solid phase

b

Liquid phase

c

Vapour phase

d

Supercritical fluid

e

Triple point (–57°C, 5.2 bar)

6.2

Recommended maintenance and
inspection

Since  dust  collects  when  using  the  unit  for  several  years,
performance  of  the  unit  will  deteriorate  to  some  extent.  As  taking
apart and cleaning interiors of units requires technical expertise and
in  order  to  ensure  the  best  possible  maintenance  of  your  units,  we
recommend to enter into a maintenance and inspection contract on
top  of  normal  maintenance  activities.  Our  network  of  dealers  has
access  to  a  permanent  stock  of  essential  components  in  order  to
keep your unit in operation as long as possible. 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).

▪ The installation date.

▪ The symptoms or malfunction, and details of the defect.

WARNING

▪ Do not modify, disassemble, remove, reinstall or repair

the unit yourself as incorrect dismantling or installation
may  cause  an  electric  shock  or  fire.  Contact  your
dealer.

▪ In case of accidental refrigerant leaks, make sure there

are  no  naked  flames.  The  refrigerant  itself  is  entirely
safe,  non-toxic  and  non-combustible,  but  it  will
generate  toxic  gas  when  it  accidentally  leaks  into  a
room  where  combustible  air  from  fan  heaters,  gas
cookers,  etc.  is  present.  Always  have  qualified  service
personnel  confirm  that  the  point  of  leakage  has  been
repaired or corrected before resuming operation.

7

Troubleshooting

If system malfunctions are likely to degrade the articles in the room/
showcase,  you  can  ask  your  installer  to  install  an  alarm  (example:
lamp). For more information, contact your installer.

If one of the following malfunctions occur, take the measures shown
below and contact your dealer.

WARNING

Stop  operation  and  shut  off  the  power  if  anything
unusual occurs (burning smells etc.).

Leaving  the  unit  running  under  such  circumstances  may
cause breakage, electric shock or fire. Contact your dealer.

Summary of Contents for LRYEN10A7Y1

Page 1: ...Installation and operation manual CO Conveni Pack outdoor unit and capacity up unit English Installation and operation manual CO Conveni Pack outdoor unit and capacity up unit LRYEN10A7Y1 LRNUN5A7Y1...

Page 2: ...mm 300 500 500 10 B B1 B2 B3 100 500 500 50 300 200 a a C1 C2 C3 C a 300 500 20 10 50 100 500 100 300 400 200 a A Y X h2 H2 500 h1 H1 1500 1...

Page 3: ...and service ports 19 13 2 1 To handle the stop valve 19 13 2 2 To handle the service port 20 13 2 3 Tightening torques 21 13 3 Connecting the refrigerant piping 21 13 3 1 To remove the spun pipes 21...

Page 4: ...from Daikin and in addition comply with applicable legislation and are performed by qualified persons only In Europe and areas where IEC standards apply EN IEC 60335 2 40 is the applicable standard I...

Page 5: ...tar system They can cause overheating electrical shock or fire Do NOT install a phase advancing capacitor because this unit is equipped with an inverter A phase advancing capacitor will reduce perform...

Page 6: ...bol This means that the batteries may NOT be mixed with unsorted household waste If a chemical symbol is printed beneath the symbol this chemical symbol means that the battery contains a heavy metal a...

Page 7: ...e executing any maintenance task WARNING Never replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out Use of wire or copper wire may cause the unit to break down or...

Page 8: ...instruments or works of art NOTICE Do NOT use the system for cooling water It may freeze NOTICE For future modifications or expansions of your system A full overview of allowable combinations for futu...

Page 9: ...Phase diagram of R744 P bar T C 0 31 100 80 1 5 2 73 8 57 d c b a e P Pressure in bar T Temperature in C a Solid phase b Liquid phase c Vapour phase d Supercritical fluid e Triple point 57 C 5 2 bar 6...

Page 10: ...ge Restart the unit by switching operating switch OFF and ON If the problem persists refer to the service manual The stop valve of an outdoor unit is left closed Open the stop valve on both the gas an...

Page 11: ...unit a b a Outdoor unit b Capacity up unit NOTICE Use a belt sling of 20 mm wide that adequately bears the weight of the unit Forklift a b a Outdoor unit b Capacity up unit NOTICE Use filler cloth on...

Page 12: ...your dealer for assistance WARNING Only the refrigeration parts that are also designed to work with CO2 shall be connected to the system Individual control with a remote controller In case of a system...

Page 13: ...alculations see the reference guide of the indoor unit Appropriate measures INFORMATION Appropriate measures are field supply Choose and install all required appropriate measures in accordance with EN...

Page 14: ...echanical ventilation in accordance with EN 378 3 2016 12 2 Opening and closing the unit 12 2 1 To open the outdoor unit DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING To gain access to...

Page 15: ...it b Capacity up unit 3 Attach the small front plates to the front panels a b 2 7 a Outdoor unit b Capacity up unit 12 3 Mounting the outdoor unit 12 3 1 To provide the installation structure Make sur...

Page 16: ...n bolts M12 It is best to screw in the foundation bolts until their length remains 20 mm above the foundation surface 20 mm NOTICE Prepare a water drainage channel around the foundation to drain waste...

Page 17: ...ion 13 1 2 Refrigerant piping material Piping material K65 copper iron alloy CuFe2P maximum operating pressure 120 bar Piping temper grade and thickness Piping refrigeration unit Piping type Outer dia...

Page 18: ...easily a c b a Showcase b Height difference 5 m c Trap The refrigerant suction piping must always run down a b a b a Outdoor unit or indoor unit b Flow direction in refrigerant suction piping To inst...

Page 19: ...15 9 t1 05 K65 Air conditioner side liquid pipe b 12 7 t0 85 K65 Air conditioner side gas pipe b 15 9 t1 05 K65 a Piping between branching areas C D c d b Piping from first branch to second branch B2...

Page 20: ...te and freeze between the screw thread As a result refrigerant may leak and the valve cap may break a b a Apply screw lock agent b Do NOT apply screw lock agent 5 Tighten the valve cap Also see 13 2 3...

Page 21: ...ese instructions are NOT followed correctly it may result in property damage or personal injury which may be serious depending on the circumstances To remove the spun piping 1 Open the stop valve cap...

Page 22: ...p valve gas refrigeration B Stop valve liquid refrigeration a Gas piping b Liquid piping 2 If applicable remove the knockout and connect the piping to the capacity up unit Side connection 3 Remove the...

Page 23: ...to withstand high pressures and which will prevent water dirt or dust entering the unit CAUTION Do NOT open the stop valve until you have measured the insulation resistance of the main power supply ci...

Page 24: ...th 20 mm Insulation sealing To prevent rain and condensed water entering the unit add a sealing between the insulation and the front panel of the unit a a a a b b a Sealing material b Front panel 14 C...

Page 25: ...4 the additional amount of refrigerant during test run 6 and the factory charged amount of refrigerant 5 see label on the unit The total amount of refrigerant in the system is thus 4 5 6 7 10 Note do...

Page 26: ...kg 5 Factory charged amount of refrigerant into outdoor unit kg 6 3 6 Additional amount of refrigerant charged when test run if required kg a 7 Total amount of refrigerant 5 6 7 kg 8 a The maximum amo...

Page 27: ...consultation with the distribution network operator if necessary that the equipment is connected only to a supply with a system impedance Zsys less than or equal to Zmax EN IEC 61000 3 12 provided tha...

Page 28: ...d1 d2 h h1 h2 d1 d2 X1M A1P X5M X4M X1M PE X1M X3M PE X1M A1P X2M X1M X3M PE k1 k l m k2 k4 k3 j 3N 50 Hz 380 415 V AC c1 c2 3N 50 Hz 380 415 V AC c1 c2 c1 c2 1N 50 Hz 220 240 V AC c1 c2 k5 a Capacity...

Page 29: ...b X5M X4M X1M PE X1M A1P X2M X1M X3M PE a Terminals on outdoor unit b Terminals on capacity up unit Terminal Screw size Tightening torque N m X1M Power supply M8 5 5 7 3 PE Protective earth screw M8...

Page 30: ...fixing b F2 F1 F1 X1M A1P c a F2 Q1 Q2 TO MULTIUNIT TO OUT DUNIT TO IN DUNIT d e 2 1 3 X5M a b c d e X1M A1P X5M 1 2 X1M A1P DIII transmission wiring a To capacity up unit b To indoor units air condit...

Page 31: ...rror occurs that causes unit operation to stop R P2 run signal connection optional when the compressor is running P1 P2 operation signal connection mandatory when the expansion valves of the connected...

Page 32: ...on of the capacity up unit a remote operation switch is required Use a voltage free contact for microcurrent 1 mA 12 V DC Connect to X3M 1 2 and set to Remote R E M O T E OFF O N S1S S1S Factory equip...

Page 33: ...ain PCB A1P of the outdoor unit and capacity up unit This involves the following field setting components Push buttons to give input to the PCB A 7 segment display to read feedback from the PCB DIP sw...

Page 34: ...lay goes to its default situation From there you can access mode 1 and mode 2 Initialisation default situation NOTICE Be sure to turn on the power 6 hours before operation in order to have power runni...

Page 35: ...side of the unit on refrigerant leakage If there is a refrigerant leak try to repair the leak If the repair is unsuccessful call your local dealer Do not touch any refrigerant which has leaked out fro...

Page 36: ...s and circuit breakers on the indoor unit PCB did not trip Operation parameters For a stable operation of the unit each of the following parameters should be in its range Parameter Range Root cause wh...

Page 37: ...the maintenance and repair works Quantities and kind of new reused recycled reclaimed refrigerant which have been charged on each occasion Quantities of refrigerant which have been transferred from th...

Page 38: ...downstream of indoor units error displayed on remote controller O Wrong combination of indoor units Check the number of connected indoor units Check if an indoor unit is installed that is not a possib...

Page 39: ...ata is available on the Daikin Business Portal authentication required 19 1 Piping diagram Outdoor unit HPS HPS HPS os L M H L SV RV M 15 9 C1220T H 15 9 C1220T H 15 9 C1220T H 19 1 C1220T H M M M Pre...

Page 40: ...19 2 Piping diagram Capacity up unit 15 9 C1220T H 15 9 C1220T H L RV M M HPS os H Pressure sensor Plate heat exchanger HPS Pressure switch Heat exchanger Check valve os Oil separator Service port RV...

Page 41: ...ted circuit board earth leakage detector E1HC Crankcase heater M1C E2HC Crankcase heater M2C E3HC Crankcase heater M3C L1R Reactor A3P L2R Reactor A4P L3R Reactor A5P M1C Motor compressor INV1 M2C Mot...

Page 42: ...Crankcase heater M1C F1U F2U Fuse T 6 3 A 250 V A1P F1U Fuse A6P F101U Fuse A4P F3U F4U Fuse B 1 A 250 V F401U F403U Fuse A3P F601U Fuse A2P HAP Light emitting diode service monitor is green A1P A2P...

Page 43: ......

Page 44: ...4P605461 1 2020 04 Copyright 2020 Daikin 4P605461 1 0000000K Verantwortung f r Energie und Umwelt...

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