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YORK 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

ĂĂ

Indicates a potentially 

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

CAUTION

ĂĂ

Indicates a situation that may 

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

z

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

z

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

z

Please install the air-conditioner on a foundation 
strong enough to withstand the weight of the unit. 
An insufficient strength foundation may result in 
the unit falling and causing injuries. 

z

Carry out the specified installation work after 
taking into account strong winds, typhoons or 
earthquakes.

Improper installation work may result in the unit 
falling and causing injuries. 

z

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. 

z

Make sure that the specified wires 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. 

z

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. 

z

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

z

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

z

Power off the unit before touching the electrical 
parts. 

z

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

z

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. 

z

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

z

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

z

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. 

z

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. 

z

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. 

z

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

z

Be very careful about the product transportation. 

䄺ਞ

WARNING 

Summary of Contents for YDCC018-115

Page 1: ... YORKVRFAir Conditioner 250 12 YDCC IOM English YGF 0911 Installation Manual ...

Page 2: ...TY CONSIDERATIONS 2 BEFORE INSTALLATION 2 3 SELECTING INSTALLATION SITE 2 4 BEFORE INSTALLATION 3 5 INDOOR UNIT INSTALLTION 4 6 REFRIGERANT PIPING WORK 4 7 DRAIN PIPING WORK 6 8 INSTALLING THE DUCT 7 9 SET THE ESP 7 10 ELECTRIC WIRING WORK 7 ϭ ...

Page 3: ... the doors and windows immediately to ventilate the room thoroughly z Toxic gas may be produced if the refrigerant comes in contact with fire such as a fan heater stove or cooking device z Power off the unit before touching the electrical parts z Do not touch the switch with wet fingers Touching the switch with wet fingers may cause electric shock z Be sure the air conditioner is well grounded Nev...

Page 4: ...utdoor unit 3 SELECTING INSTALLATION SITE z If it has the possibility that the temperature and humidity inside the ceiling 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 z The ceiling is strong enough to bear the indoor unit weight If not please reinforce...

Page 5: ... opening for repairing should be installed in the ceiling right below the unit The size should be no smaller than the unit diameter BhE shown in the Fig 2 YDCC06 45 YDCC018 112 Indoor Units Models A B C D E YDCC066 078 1205 1235 1450 1213 222 YDCC095 115 1505 1535 1780 1513 237 Note indoor unit series type of A B C and D is determined by the specific letter in the bar code on the unit For example ...

Page 6: ... installed within the hanger bracket for fear of bolt rolling out this may result in danger 6 REFRIGERANT PIPING WORK z Execute insulation completely on both sides of the gas piping and the liquid piping Otherwise water leakage can result sometimes Please use the insulation materials that can withstand temperature of at least 120 C Reinforce the insulation on the refrigerant piping according to th...

Page 7: ...frigerant piping and let the pressure slowly rise to 4 15MPa b The specified pressure should be maintained for 10 minutes and then soapy water or other foaming agent are applied to the connection positions such as brazing seams screwed joints etc for leakage detection c If it has leakage then tighten or braze the leakage point d After it has been confirmed that the piping does not leak the dwellin...

Page 8: ...8 Central Drain Pipe z For the indoor unit with pump drainage a Be sure the drain raising pipe height is within 700mm b Place the drain raising pipe vertically and make sure it is no further than 300mm Refer to Fig 8 c The spare drain hole also needs to be thoroughly insulated to avoid accumulating of condensate water Fig 9 Pump Drainage z To prevent the drain pipe from sagging install hanging bra...

Page 9: ...ording to the actual pressure drop of the air duct z Indoor unit ESP can be adjusted by changing the connection site of fan wiring in the control board For detail setting method of different indoor ESP please refer to the wiring diagram attached to the control box lid 10 ELECTRIC WIRING WORK 10 1 General introduction z Shut off the power before doing any work z All field supplied parts and materia...

Page 10: ... system while the other indoor units are controlled by another switch 10 4 Indoor unit field wiring z For detail indoor unit wiring see the Wring Diagram attached to the control box lid when laying the indoor unit electrical wiring 10 5 Setting indoor unit model z Refer to the Wring Diagram attached to the control box lid for indoor unit model setting 10 5 Communication network Note indoor unit co...

Page 11: ...roller can connect to max 4 indoor units Note indoor unit series type of A B C and D is determined by the specific letter in the bar code attached on the unit For example indoor unit YDCC C means C type series unit and YDCC B means B type z The indoor units in one group should be connected in a same power supply to guarantee normal initialization of wire controller when power on z Connection of in...

Page 12: ...721239 YDCC IOM English YGF 0911 NOTHING ...

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