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VRF Air-Conditioner IOM

 

 

2

R410a  and  whether  it  is  consistent  with  that  of 
outdoor unit. 

 

For the installation of outdoor unit, please refer to 
the installation and operation instructions attached 
for outdoor unit. 

3.

 

Selection of Installation Position 

Installation position conditions: 

 

Ceiling  strength  shall  be  sufficient  to  bear  the 
weight of indoor unit; if not, reinforce first. 

 

Guarantee  good  ventilation  and  make  gas  flow 
free from obstructions shielding. 

 

Condensed  water  is  capable  of  being  discharged 
smoothly. 

 

There is no combustible gas leakage hazard. 

 

Ensure adequate installation space. 

 

Piping  length  of  indoor  unit  and  outdoor  unit  is 
within an allowable range. 

 

4.

 

Installation of Indoor Unit 

4.1

 

  Open wall hole 

 

Select  installation  position  and  determine  pipe 
passing direction and pipe outlet position. 

 

Select  drill  bit  according  to  machine  model  and 
use  electric  hammer  or  diamond  to  open  wall 
hole. 

 

Wall hole size in general: recommended wall hole 
diameter  Φ90mm  for  below  056  type  and 
Φ150mm for above 071 type. 

 

Keep  clear  of  the  walls  with  wire  or  foreign 
matters inside and outside and the superhard walls 
as much as possible in holing; the hole inside shall 
be  0.5cm~1cm  higher  than  outside  considering 
drainage; wall hole passing through outlet pipe of 
indoor  unit  side  shall  be  slightly  lower  than  the 

indoor  unit  downside;  for  holing  with  diamond, 
plastic  cloth  shall  be  sticked  to  wall  or  other 
method  may  be  adopted  to  prevent  water  flow  to 
wall;  for  holing  with  electric  hammer,  dust 
prevention measures shall be taken. 

 

4.2

 

  Install the unit 

 

Install Φ10 hoisting bolts (4). 

 

After the unit hoisting, conduct piping and wiring 
work in ceiling, and determine the outlet direction 
of  piping  after  installation  site  selection. 
Especially  on  the  occasion  with  existing  ceiling, 
please  pull  refrigerant  piping,  drainage  pipe, 
indoor  and  outdoor  connecting  line  and  remote 
controller  line  to  a  connection  position  before 
hanging machine. 

 

Installation method for hoisting bolt. 
Match  with  the  existing  structure  and  arrange 
thread  pitch  according  to  the  following  shown 
machine dimension. 
Wooden  occasion:  arrange  hoisting  bolt  by 
mounting square bar on beam 

 

Steel  frame  occasion:  arrange  and  directly  use 
supporting angle steel 

 

Existing concrete blank occasion: 

 

Newly prepared concrete blank occasion: 

Square bar 

Hoisting bolt 

Hanging bolt 

Hanging bolt 

Supporting angle steel 

Ceiling 

Beam 

 

cm 

Summary of Contents for York YDEC028

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

Page 2: ...cting Pipes Liquid Gas φ mm 6 35 9 52 6 35 12 7 6 35 12 7 6 35 12 7 9 52 15 88 Drainage Pipe φ mm 16 O D Model YDEC080 YDEC090 YDEC112 YDEC140 YDEC160 Cooling Capacity kW 8 0 9 0 11 2 14 0 16 0 Heating Capacity kW 9 0 10 0 12 5 16 0 18 0 Power supply 220V 50Hz Rated Power W 210 210 210 250 250 Rated Current A 0 97 0 97 0 97 1 20 1 20 Air Flow Rate m3 h 1550 1550 1550 1950 1950 External Static Pres...

Page 3: ... Contents 1 SAFETY CAUTIONS 1 2 BEFORE INSTALLATION 1 3 SELECTION OF INSTALLATION POSITION 2 4 INSTALLATION OF INDOOR UNIT 2 5 INSTALLATION OF REFRIGERANT PIPING 4 6 INSTALLATION OF DRAINAGE PIPING 5 7 ELECTRIC CONNECTION 6 ...

Page 4: ...ge earthing breaker is not installed there will be electric shock hazard or fire hazard Please arrange drainage piping according to this instruction to guarantee smooth drainage and insulate the piping in case of condensed water accumulation Improper piping may lead to water leakage and soak household items Air conditioner power line and connecting line shall be far away from more than 1m at least...

Page 5: ...nd the superhard walls as much as possible in holing the hole inside shall be 0 5cm 1cm higher than outside considering drainage wall hole passing through outlet pipe of indoor unit side shall be slightly lower than the indoor unit downside for holing with diamond plastic cloth shall be sticked to wall or other method may be adopted to prevent water flow to wall for holing with electric hammer dus...

Page 6: ... must be opened on the ceiling before installation with the specification as follows 1170 610 for 028 112 type and 1600 610 for 140 160 type take down the right and left cover plates of indoor unit and then embed one half of main body into the ceiling and only expose rear cover plate and head cover For seat installation use gradienter to install Hoisting bolt Hoisting bolt Hoisting support Hoistin...

Page 7: ... designated refrigerant anything for example air shall not mix into refrigerating circuit Before welding refrigerant piping please conduct nitrogen replacement or fill nitrogen into piping in welding and finally connect with indoor unit by horn mouth When filling nitrogen into piping in welding guarantee to control the pressure with reducing valve as 0 02MPa 0 2kgf cm2 like the feel of breeze blow...

Page 8: ... good thermal insulation Field piping must be connected to the piping connecting part all the time If poor thermal insulation for piping there will be dew outside and scald if any touch 6 Installation of Drainage Piping 6 1 Drainage piping installation In delivery the drainage outlet is PVC pipe in connecting water pipe please use auxiliary sealing material and sleeve Conduct thermal insulation fo...

Page 9: ...ional electrician Line breaker or leakage breaker must be arranged at power supply Earthing resistance must below 4Ω Air conditioner must be earthed reliably Earthing wire shall not be connected to gas pipe tap water pipe lightening rod or telephone line Do not power on before the end of all the electric operation The terminal of the same power supply shall not be connected with two wires with dif...

Page 10: ...on wire of TB3 outlet connects to the communication port of the next indoor unit TB2 inlet Inlet and outlet lines TB2 inlet and TB3 outlet of indoor unit shall not be reversed otherwise there will be fault and the unit can t be started Connect according to the diagram do not allow A and B polarity connection error otherwise communication failure or controller damage may be caused In order to avoid...

Page 11: ...roller 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 controller a When one wire controller connecting only one indoor unit refer to Fig 13 b When one wire controller connecting multi indoor units refer to Fig 14 Fig 13 One ...

Page 12: ...9 YDEC IOM EN 1212 NONE YDEC IOM 0812 ...

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