Johnson Controls York YDEC028, York YDEC036, York YDEC045, York YDEC056, York YDEC071 Installation Manual

VRF Air-Conditioner

Installation Manual

FORM NO.:YDEC IOM-EN(1212)

VRF Air-Conditioner IOM

Model YDEC028 YDEC036 YDEC045 YDEC056 YDEC071
Cooling Capacity kW 2.8 3.6 4.5 5.6 7.1
Heating Capacity kW 3.2 4.0 5.0 6.3 8.0
Power supply - 220V ～ 50Hz
Rated Power W 110 110 130 130 180
Rated Current A 0.55 0.55 0.65 0.65 0.83
Air Flow Rate m3/h 600 600 950 950 1250
External Static Pressure Pa 0
Dimension HxWxD mm 680x1245x240 680x1245x240 680x1245x240 680x1245x240 680x1245x240
Connecting 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

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 Pressure Pa 0
Dimension HxWxD mm 680x1245x240 680x1245x240 680x1670x240 680x1670x240 680x1670x240
Connecting Pipes Liquid/Gas (φ)mm 9.52/15.88 9.52/15.88 9.52/15.88 9.52/15.88 9.52/15.88

Drainage Pipe (φ)mm

16(O.D.)

16(O.D.)

VRF Air-Conditioner IOM

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

1. Safety Cautions

Please carefully read this "Safety Cautions" before
installing air conditioner so as to ensure correct
installation.
The following cautions are divided into two categories,
related to safety and of great importance, please
carefully read.

Warning…Inattention will lead to death or

serious injury.

Caution…Inattention will lead to injury or
machine damage, and may also cause serious injury
according to different conditions.

Warning

 Installation operation must be conducted by

professional personnel. Do not conduct without
approval.

 Please install the air conditioner in a solid place

sufficient to bear the weight.
Instable base may lead to air conditioner falling
and cause damage.

 Please use separate circuit for power supply. The

operation of all the electric parts must be in
accordance with the local laws and specifications
as well as this instruction.

 The operation shall be conducted by the

electrician with professional qualification.
Insufficient capacity or improper electric
operation may cause electric shock or fire hazard.

 Use the specification designated wires; all the

wires shall be connected well to make connecting
terminal and wire free from external force
drawing.
Poor connection and improper installation may
cause fire hazard.

 Straighten out and lay flat when connecting power

line, remote controller and wire controller line so
as to make electric parts and wire slot box cover
fastened down.

 If any refrigerant gas leakage in installation,

immediately open door and window for
ventilation.
The refrigerant gas will generate toxic gas when
meeting combustion sources such as air heater,
furnace and stove.

 Please power off first before touching electronic

parts.

 Do not touch the switch with wet hand.

Touching switch with wet hand may cause electric
shock.

 Air conditioner must be earthed.

Earthing wire shall not be connected to gas pipe,
tap water pipe, lightening rod and telephone line.
Poor earthing may lead to electric shock accident.

VRF Air-Conditioner IOM

 Leakage earthing leakage breaker must be

installed.
If leakage 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 from
such electrical equipment as television set and
radio to prevent from interference of
electromagnetic wave and noise.

 In the room equipped with fluorescent lamp

(inverter or quick start type), the signal
transmission distance of the remote controller may
not reach the preset value.
The indoor machine shall be away from
fluorescent lamp as far as possible.

 Installation should not be conducted in the

following places:

(a) Place where mineral oil smoke or mist or steam

is diffused, for example, kitchen.

Plastic parts may be deteriorated and damaged.

(b) Place where there is corrosive gas such as sulfur

dioxide.
Copper pipe or welding part may be corroded to
cause refrigerant leakage.

(c) Place which is close to the machine generating

electromagnetic wave.
Electromagnetic wave may influence the control
system to make the air conditioner incapable of
normally operating.

(d) Place where there is combustible gas leakage,

carbon fiber or combustible dust floating, or

volatile combustible placing such as gasoline or

diluent.
The use of air conditioner in such places may
cause fire hazard.

 Please do not touch the fin of the heat exchanger.

Improper touch may cause machine damage and
personal injury.

 Please pay special attention to product handling.

Do not handle by lifting PP strap in case of PP
strap rupture to damage unit and harm person.

2. Before Installation

 Air conditioner shall not be unsealed before

moved to the installation site. If it is necessary to
unseal, measures shall be taken after unsealing to
avoid damaging or scratching air conditioner.

 When moving the air conditioner during or after

unsealing, do not apply force to refrigerant piping,
drainage pipe or other plastic parts in order to
avoid damaging air conditioner.

 Before air conditioner installation, please confirm

whether the refrigerant used for the unit is R22 or

1