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VRF Air-Conditioner IOM

 

 

1

    

SAFETY CONSIDERATIONS 

Please  read  the  “SAFETY  CONSIDERATIONS”  carefully 
before installing the air-conditioner equipment and be 
sure to install it correctly. 
The below notes include two types, both of which are 
related to safety and extremely important. Please read 
it carefully. 

    

WARNING

… …

Indicates  a  potentially 

hazardous situation, which, if not avoided, could result 
in death or serious injury. 

    

CAUTION

……

Indicates  a  situation  that  may 

result  in  injury  or  equipment  damage.  According  to 
different conditions, it also may result in the accidents 
of serious injury or other damage. 

 

 

Ask  the  specially  trained  personnel  to  carry  out 
the  installation  work.  Do  not  try  to  install  the 
machine by yourself. 

 

Please perform the installation work in accordance 
with the steps in this manual. 
Improper installation may result in  water leakage, 
electric shock or fire. 

 

Make  sure  that  a  separate  power  supply  circuit  is 
provided for this unit and that all electrical work is 
carried  out  by  specially  trained  personnel 
according  local  laws,  regulations  and  this 
installation manual. 
An insufficient power supply capacity or improper 
electrical  construction  may  lead  to  electric  shock 
or fire. 

 

Make  sure  that  the  specified  wires  that  comply 
with  national  standard  are  used  and  all  wiring  is 
secure.  No  external  forces  act  on  the  terminal 
connections or wires. 
Improper  wiring  connections  or  installation  may 
result in electric shock or fire. 

 

When  connecting  the  wiring  of  power  supply, 
wired  controller and remote  controller,  the wiring 
should  be  laid  orderly  so  that  the  electric  parts 
box lid can be securely fastened. 

 

If  it  appears  refrigerant  leakage  during  the 
installation  process,  open  the  doors  and  windows 
immediately to ventilate the room thoroughly.   

 

Toxic gas may be produced if the refrigerant comes 
in  contact  with  fire  such  as  a  fan  heater,  stove  or 
cooking device. 

 

Power  off  the  unit  before  touching  the  electrical 
parts. 

 

Do not touch the switch with wet fingers. 
Touching  the  switch  with  wet  fingers  may  cause 
electric shock. 

 

Be sure the air-conditioner is well grounded.   
Never  connect  the  ground  line  with  the  gas  pipe, 
water pipe, lightning conductor or telephone lines. 
Incomplete  ground  line  may  cause  electric  shock 
or fire. 

 

Be sure to install a ground leakage breaker. 
Failure  to  install  a  ground  leakage  breaker  may 
result in electric shock or fire. 

 

Please  follow  the  instructions  in  this  manual  to 
install  drain  pipe  in  order  to  ensure  smooth 
drainage  and  good  piping  insulation  to  avoid 
accumulating of condensate water. 
Improper  drain  pipe  may  result  in  water  leakage 
and property damage. 

 

Install  the  air-conditioner  unit,  power  supply 
wiring  and  connection  wires  at  least  1m  away 
from  electrical  equipments,  such  as  TVs,  radios, 
etc.  to  avoid  electromagnetic  waves  interference 
or noise. 

 

Remote  controller  transmitting  distance  may  be 
shortened  than  the  expected  one  in  the  rooms 
with  electronic  fluorescent  lamps  (inverter  or 
rapid start types).   
Install the indoor unit as far away from fluorescent 
lamps as possible. 

 

Do  not  install  the  air-conditioner  in  the  following 
locations: 

(a)

 

Where  a  mineral  oil  mist  or  an  oil  spray  or 
vapor is produced, for example in a kitchen. 
Plastic parts may be deteriorated, corroded or 
damaged. 

(b)

 

Where  corrosive  gas,  such  as  sulfurous  acid 
gas is produced. 
Corroded copper tubes or soldered parts may 
result in refrigerant leakage. 

(c)

 

Where 

near 

machinery 

emitting 

electromagnetic waves. 
Electromagnetic  waves  may  disturb  the 
operation of the control system and result in a 
malfunction of the equipment. 

(d)

 

Where  it  may  have  flammable  gas  leakage, 
carboform  or  floating  flammable  dust,     
volatile  flammable  material  such  as  gasoline 
or thinner. 
Using  air-conditioner  in  those  places  may 
result in fire. 

 

Do not touch heat exchanger fins 
Improper  touching  the  heat  exchanger  fins  may 
result in machine damage or personnel injury. 

 

Be  very  careful  about  the  product  transportation. 
Do not use any packaging PP bands for a means of 
transportation  to  avoid  PP  bands  rupturing  and 
result in product damaging or personnel injury.   

2

    

BEFORE INSTALLATION 

 

Do  not  unpack  the  unit  before  reaching  the 
installation  site.  Where  unpacking  is  unavoidable, 
countermeasure  should  be  done  after  unpacking 

警告

警告

警告

警告

 

WARNING 

Summary of Contents for York YDVC028

Page 1: ...VRF Air Conditioner Installation Manual FORM NO YDVC IOM EN 1212 ...

Page 2: ...3 8 0 Power supply 220V 50Hz Rated Power W 41 50 60 71 Rated Current A 0 18 0 23 0 27 0 32 Air Flow Rate m3 h 420 680 900 1000 External Static Pressure Pa 0 Dimension HxWxD mm 600x730x230 600x980x230 600x1334x230 600x1334x230 Connecting Pipes Liquid Gas φ mm 6 35 9 52 6 35 12 7 6 35 12 7 9 52 15 88 Drainage Pipe φ mm 19 05 O D ...

Page 3: ...OM Contents 1 SAFETY CONSIDERATIONS 1 2 BEFORE INSTALLATION 1 3 SELECTING INSTALLATION SITE 2 4 INDOOR UNIT INSTALLTION 2 5 REFRIGERANT PIPING WORK 4 6 DRAIN PIPING WORK 5 7 INSTALLING THE DUCT 6 8 ELECTRIC WIRING WORK 6 ...

Page 4: ...use electric shock Be sure the air conditioner is well grounded Never connect the ground line with the gas pipe water pipe lightning conductor or telephone lines Incomplete ground line may cause electric shock or fire Be sure to install a ground leakage breaker Failure to install a ground leakage breaker may result in electric shock or fire Please follow the instructions in this manual to install ...

Page 5: ...iling might exceed 30 C and RH80 please reinforce the insulation on the unit Use glass wool or polyethylene foam as insulation and its thickness is more than 10mm 3 1 INSTALLATION SITE REQUIREMENTS The ceiling is strong enough to bear the indoor unit weight If not please reinforce the ceiling before installation Ensure optimum air distribution and nothing blocks the air passage Condensate water ca...

Page 6: ...6 35 9 52 YDVC045 980 820 782 763 6 35 12 7 YDVC056 1334 1170 1132 1113 6 35 12 7 YDVC071 1334 1170 1132 1113 9 52 15 88 To leave an inspection opening for convenient maintenance and inspection of the parts such as electrical parts refrigerant connection nuts temperature sensors EXV coil drain pump if it has etc Refer to Fig 3 for the inspection opening size Figure 3 Servica Space ...

Page 7: ...ting the piping either pinch the end or cover it with tape Do not allow anything other than the designated refrigerant to get mixed into the refrigerant circuit such as air etc When brazing the refrigerant piping perform nitrogen replacement first or perform brazing while feeding nitrogen into the refrigerant piping and finally connect the indoor unit using the flare connections When brazing a pip...

Page 8: ...P P Pressure correction value Pa correction P the correced pressure value Pa 1 P 1 st record pressure Pa 2 P 2 nd record pressure Pa 1 t 1 st record temperature C 1 t 2nd record temperature C Do not connect indoor units with outdoor units during the air test process Otherwise it may result in nitrogen gas emtering into the outdoor unit 5 3 Insulate the piping After checking it has no leakage be su...

Page 9: ...al introduction Refer to figure 11 for indoor unit electrical wiring All field supplied parts and materials and electric works must conform to local laws Only copper wires can be used Please refer to the wiring diagram attached with the unit when performing the electric work Please refer to the installation guide attached with wire controller for electric and detailed instruction All wiring works ...

Page 10: ...6A 2P 1 0mm 2 MCA Maximum Current A 8 2 Power distribution Refer to Fig 8 for power distribution of the system Fig 8 Indoor and Outdoor Units Power Distribution Diagram 8 3 Indoor unit field wiring Refer to the Wring Diagram attached to the control box lid for details 8 4 Setting indoor unit model Refer to the Wring Diagram attached to the control box for the indoor unit setting 8 5 Communication ...

Page 11: ...ire and PVC conduit are the field supplied parts 8 7 Connect the wire controller and indoor unit Group control can be realized through the wire controller One wire controller can connect to max 4 indoor units The indoor units in one group should be connected in one and same power supply to guarantee normal initialization of wire controller when power on Connection sketch of indoor unit and wire co...

Page 12: ...YDVC IOM EN 1212 YDVC IOM 1204 NONE ...

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