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1 General safety precautions

Installer and user reference guide

4

LRMEQ+4BY1

Air-cooled refrigeration condensing unit

4P500362-1A – 2018.09

▪ Batteries are marked with the following symbol:

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 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  correctly,
you  will  help  to  prevent  potential  negative  consequences  for  the
environment and human health.

1.3

For the installer

1.3.1

General

If  you  are  NOT  sure  how  to  install  or  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.  Only  use
accessories,  optional  equipment  and  spare  parts  made  or
approved by Daikin.

WARNING

Make  sure  installation,  testing  and  applied  materials
comply  with  applicable  legislation  (on  top  of  the
instructions described in the Daikin documentation).

CAUTION

Wear  adequate  personal  protective  equipment  (protective
gloves,  safety  glasses,…)  when  installing,  maintaining  or
servicing the system.

WARNING

Tear apart and throw away plastic packaging bags so that
nobody,  especially  children,  can  play  with  them.  Possible
risk: suffocation.

DANGER: RISK OF BURNING

▪ Do  NOT  touch  the  refrigerant  piping,  water  piping  or

internal parts during and immediately after operation. It
could  be  too  hot  or  too  cold.  Give  it  time  to  return  to
normal  temperature.  If  you  must  touch  it,  wear
protective gloves.

▪ Do NOT touch any accidental leaking refrigerant.

WARNING

Provide adequate measures to prevent that the unit can be
used  as  a  shelter  by  small  animals.  Small  animals  that
make contact with electrical parts can cause malfunctions,
smoke or fire.

CAUTION

Do NOT touch the air inlet or aluminium fins of the unit.

NOTICE

▪ Do  NOT  place  any  objects  or  equipment  on  top  of  the

unit.

▪ Do NOT sit, climb or stand on the unit.

NOTICE

Works  executed  on  the  outdoor  unit  are  best  done  under
dry weather conditions to avoid water ingress.

In  accordance  with  the  applicable  legislation,  it  might  be  necessary
to provide a logbook with the product containing at least: information
on maintenance, repair work, results of tests, stand-by periods,…

Also,  at  least,  following  information  MUST  be  provided  at  an
accessible place at the product:

▪ Instructions for shutting down the system in case of an emergency

▪ Name and address of fire department, police and hospital

▪ Name,  address  and  day  and  night  telephone  numbers  for

obtaining service

In Europe, EN378 provides the necessary guidance for this logbook.

1.3.2

Installation site

▪ Provide  sufficient  space  around  the  unit  for  servicing  and  air

circulation.

▪ Make  sure  the  installation  site  withstands  the  unit's  weight  and

vibration.

▪ Make  sure  the  area  is  well  ventilated.  Do  NOT  block  any

ventilation openings.

▪ Make sure the unit is level.

Do NOT install the unit in the following places:

▪ In potentially explosive atmospheres.

▪ In  places  where  there  is  machinery  that  emits  electromagnetic

waves.  Electromagnetic  waves  may  disturb  the  control  system,
and cause malfunction of the equipment.

▪ In  places  where  there  is  a  risk  of  fire  due  to  the  leakage  of

flammable  gases  (example:  thinner  or  gasoline),  carbon  fibre,
ignitable dust.

▪ In  places  where  corrosive  gas  (example:  sulphurous  acid  gas)  is

produced. Corrosion of copper pipes or soldered parts may cause
the refrigerant to leak.

1.3.3

Refrigerant

If applicable. See the installation manual or installer reference guide
of your application for more information.

NOTICE

Make  sure  refrigerant  piping  installation  complies  with
applicable  legislation.  In  Europe,  EN378  is  the  applicable
standard.

NOTICE

Make  sure  the  field  piping  and  connections  are  NOT
subjected to stress.

WARNING

During  tests,  NEVER  pressurize  the  product  with  a
pressure higher than the maximum allowable pressure (as
indicated on the nameplate of the unit).

WARNING

Take sufficient precautions in case of refrigerant leakage. If
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  comes

into contact with fire.

Содержание LRMEQ4BY1

Страница 1: ...Installer and user reference guide Air cooled refrigeration condensing unit English Installer and user reference guide Air cooled refrigeration condensing unit LRMEQ3BY1 LRMEQ4BY1 LRLEQ3BY1 LRLEQ4BY1...

Страница 2: ...ervice port 16 6 4 6 To remove the pinched pipes 17 6 4 7 Guidelines when installing a sight glass 18 6 4 8 Guidelines when installing a dryer 18 6 4 9 To connect the refrigerant piping to the outdoor...

Страница 3: ...XPLOSION Indicates a situation that could result in explosion WARNING Indicates a situation that could result in death or serious injury WARNING FLAMMABLE MATERIAL CAUTION Indicates a situation that c...

Страница 4: ...unit Do NOT sit climb or stand on the unit NOTICE Works executed on the outdoor unit are best done under dry weather conditions to avoid water ingress In accordance with the applicable legislation it...

Страница 5: ...ide down Open refrigerant cylinders slowly Charge the refrigerant in liquid form Adding it in gas form may prevent normal operation CAUTION When the refrigerant charging procedure is done or when paus...

Страница 6: ...utside pressure being exerted on the terminal board Use an appropriate screwdriver for tightening the terminal screws A screwdriver with a small head will damage the head and make proper tightening im...

Страница 7: ...s of the unit Carry the unit slowly as shown Forklift As long as the unit remains on its pallet you can also use a forklift 3 2 3 To remove the accessories from the outdoor unit 1 Remove the service c...

Страница 8: ...ed at the following conditions ambient temperature 32 C evaporating temperature 35 C superheat 10 K 4 4 System layout c b d a a Outdoor unit ZEAS condensing unit b Refrigerant piping c Indoor unit Blo...

Страница 9: ...410A and the same oil FVC68D as the new one you must clean the heat exchanger tubes to remove any residue If the old condensing unit did NOT use the same refrigerant R410A as the new one make sure the...

Страница 10: ...t Where the voltage fluctuates a lot In vehicles or vessels Where acidic or alkaline vapour is present Seaside installation Make sure the outdoor unit is NOT directly exposed to sea winds This is to p...

Страница 11: ...Amount of refrigerant in a single unit system amount of refrigerant with which the system is charged before leaving the factory B Additional charging amount amount of refrigerant added locally C Total...

Страница 12: ...8 Annealed O 0 99 mm 19 1 mm 3 4 Half hard 1 2H 0 80 mm a Depending on the applicable legislation and the unit s maximum working pressure see PS High on the unit name plate larger piping thickness mig...

Страница 13: ...ndoor Example H Limit 20 m Outdoor lower than indoor 10 m Maximum height difference indoor indoor 5 m 5 3 7 To select the expansion valve This unit has a larger subcooling ratio for the liquid refrige...

Страница 14: ...bes what you have to do and know on site to install the system Typical workflow Installation typically consists of the following stages Mounting the outdoor unit Mounting the indoor units Connecting t...

Страница 15: ...can tilt the unit take following measure 1 Prepare 2 cables as indicated in the following illustration field supply 2 Place the 2 cables over the outdoor unit 3 Insert a rubber sheet between the cabl...

Страница 16: ...y affects valves and compressors in the refrigerating system and prevents proper operation Set the nitrogen pressure to 20 kPa 0 2 bar just enough so it can be felt on the skin with a pressure reducin...

Страница 17: ...le the service port Always use a charge hose equipped with a valve depressor pin since the service port is a Schrader type valve After handling the service port make sure to tighten the service port c...

Страница 18: ...lass before the dryer as near to the outdoor unit as possible Install horizontally a b a Sight glass b Dryer When brazing Follow the brazing instructions in the sight glass manual 6 4 8 Guidelines whe...

Страница 19: ...the required length e1 This is necessary because the size of the gas stop valve is 15 9 while the piping between outdoor unit and first refrigerant branch kit is 19 1 Possibility 1 To the front e1 e c...

Страница 20: ...il all moisture has been removed All piping inside the unit has been factory tested for leaks Only field installed refrigerant piping needs to be checked Therefore make sure that all the outdoor unit...

Страница 21: ...ice port of the liquid stop valve or first pre charge a portion of refrigerant through the liquid line either open the outdoor unit stop valves or keep them closed See 6 7 4 To charge refrigerant on p...

Страница 22: ...ils are used 0 6 kg Metric piping When using metric piping replace the weight factors in the formula by the ones from the following table Inch piping Metric piping Piping Weight factor Piping Weight f...

Страница 23: ...t evaporating temperature with settings 2 0 and 2 1 see 7 2 8 Mode 2 Field settings on page 30 18 Turn on the power of the indoor units 19 Turn on the operation switch Result The unit will start opera...

Страница 24: ...al refrigerant charge in kg 1000 2 Fix the label on the inside of the outdoor unit near the gas and liquid stop valves 6 8 Connecting the electrical wiring 6 8 1 About connecting the electrical wiring...

Страница 25: ...ther means for disconnection having a contact separation in all poles providing full disconnection under overvoltage category III condition MUST be installed in the fixed wiring WARNING ONLY use coppe...

Страница 26: ...size Tightening torque N m X1M power supply wiring power supply shielded ground M5 2 2 2 7 X2M remote operation switch low noise switch and transmission output M3 5 0 8 0 97 X3M output signals M4 2 3...

Страница 27: ...d before the earth wire is in case the power supply is pulled loose from the stress relief NOTICE Never connect the power supply to terminal blocks X2M or X3M Otherwise the entire system may break dow...

Страница 28: ...the hydro module To configure the condensing unit you must give input to the outdoor unit s main PCB A1P This involves the following field setting components Push buttons to give input to the PCB A di...

Страница 29: ...tion when shipped from factory 10 12 min b c a a Power ON b Default situation c LED indication when there is a malfunction If the default situation is not displayed after 10 12 minutes check the malfu...

Страница 30: ...ure With this setting the target evaporating temperature can be set in increments of 5 K default 10 C 35 C 20 C 45 C 15 C 40 C 5 C 30 C 0 C 25 C 5 C 20 C 2 1 Te fine tuning of evaporating temperature...

Страница 31: ...the indoor units When performing the test operation NOT only the outdoor unit but the connected indoor unit will operate as well Working on an indoor unit while performing a test operation is dangero...

Страница 32: ...describes the test operation of the complete system 8 4 2 To perform a test run 7 LEDs display 1 Make sure all field settings you want are set see 7 2 Making field settings on page 28 2 Turn ON the p...

Страница 33: ...a tester and confirm that the voltage of the capacitor in the main circuit is less than 50 V DC C C A1P A2P 3 To prevent damaging the PCB touch a non coated metal part to eliminate static electricity...

Страница 34: ...rigerant recovery machine High pressure sensor 3 55 MPa 35 5 bar 3 Warning Inverter compressor motor lock Position signal error 4 Warning The stop valves are closed Incorrect wiring Open the gas and l...

Страница 35: ...failure Open circuit or shortcircuit 0 Caution Faulty connection of sensor Defective sensor Connect the sensor properly Replace defective component Low pressure sensor failure Open circuit or shortcir...

Страница 36: ...1000 500 D 500 D E 1000 1000 500 B D 100 500 B D E HB HD HB HU 250 750 1000 500 HU HB HU 250 1000 1000 500 HB HU HB HD HD HU 100 1000 1000 500 HU HD HU 200 1000 1000 500 HD HU 200 1700 1000 500 HU a b...

Страница 37: ...2 A1 A2 A1 If there is danger of drainage dripping and freezing between the upper and lower units A2 Then install a roof between the upper and lower units Install the upper unit high enough above the...

Страница 38: ...Service port e Check valve f Maintenance stop valve g Liquid receiver h Heat exchanger i Oil separator j Distributor k Double tube heat exchanger l Propeller fan m Sight glass n Capillary tube M1C Co...

Страница 39: ...se the contact Legend for wiring diagram LRMEQ3 4 A1P Printed circuit board main A2P Printed circuit board inverter BS A1P Push buttons MODE SET RETURN TEST RESET C A2P Capacitor DS1 A1P DIP switch E...

Страница 40: ...protect the compressor 16 Operation 16 1 Operation range Use the system in the following temperature ranges for safe and effective operation LRMEQ LRLEQ Outdoor temperature 20 43 C DB Evaporating temp...

Страница 41: ...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...

Страница 42: ...unit does not stop immediately when operation is stopped This is to prevent components from being damaged The unit will stop in a little while 19 1 3 Symptom Noise Outdoor unit A continuous low hissi...

Страница 43: ...th the product and that need to be installed according to the instructions in the accompanying documentation Optional equipment Equipment made or approved by Daikin that can be combined with the produ...

Страница 44: ...4P500362 1A 2018 09 Copyright 2016 Daikin...

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