Airwell YCV450HR User manual

Installation Manual for Outdoor Unit
YCV280HR
YCV335HR
YCV400HR
YCV450HR
No. 0150514187
•Please read this manual carefully before using
•Keep this operation manual for future reference

User Manual
Operation condition:
To use the air conditioner normally, please perform as to the below conditions.
Contents
Safety .......................................................... 1
Installation instruction.................................. 3
Exterior and installation dimensions............ 6
Installation procedure .................................. 9
Electric wiring and the application ............. 26
Failure code............................................... 44
Trial operation and the performance ......... 55
This series is cooling and heating heat
recovery models. Only when the system
is equipped with VP device, indoor units
under different VP device can achieve
cooling and heating simultaneously. The
modes of the indoors which under the same
Valve Package (following text called VP)
device should be the same. If the indoors
connected without VP device, the indoors
only can do cooling mode.
To protect compressor, before startup, the
unit should be electried for over 12 hours.
If the unit is not used for a long time, please
cut off the power to save energy, or the unit
will consume the power.
Operating Range of Air Conditioner
Cooling
dry
Indoor Max. DB:32℃WB:23℃
Min. DB:18℃WB:14℃
Outdoor Max. DB:43℃
Min. DB:-5℃
Heating
Indoor Max. DB:27℃
Min. DB:15℃
Outdoor Max. WB:15.5℃
Min. WB:-15℃
Cooling
and heating
Indoor Max. DB:27℃
Min. DB:18℃WB:14℃
Outdoor Max. WB:18℃
Min. WB:-8℃

1
Safety
WARNING
•This manual should always be accessible and close to this air condition equipment.
• There are two types of indications, " WARNING" and " CAUTION". The indication preventing
from death or heavy injury is listed as " WARNING". Even the indication listed as
"CAUTION" may also cause serious accident. Both of them are related to safety, and should
be strictly followed.
•After installation and start-up commissioning, please handover the manual to the user. The
manual should be well kept in safe place and close to the unit.
•The installation or the maintenance should be performed by an authorized agency. The wrong
operation of this air condition equipment may cause water leakage, electric shock or re.
•Please install the unit on the top of a solid foundation or structure which is strong enough to
support the unit.
•The installation of this air condition equipment should follow local construction codes.
•Use the right cable size, secure the terminal rmly, organize the cables well and make sure no
tension is added on cables. Cable insulation should not be damaged. The incorrect installation
may lead to overheat or re.
•When installing or moving the unit, the refrigerant system should be vacuumed and recharged
with R-410A refrigerant. If any other gas enters the system, it may lead to abnormal high
pressure which may cause damage or injury.
•Please use the proper manifolds or branches during the system installation. The wrong parts
may cause refrigerant leakage.
•Keep the drain pipe away from toxic gas vents to prevent possible pollution of indoor
environment.
•During or after the installation, please check whether there is refrigerant leakage. If any
leakage, please take any measures for ventilation. The refrigerant may be toxic at some
concentration levels.
•The unit is not explosion-proof. Please keep it away from ammable gases.
•The drain pipe should be installed per this manual to ensure proper drainage. The pipe should
be well insulated to avoid condensation. Wrong installation may lead to water leakage.
•All of liquid pipe ,HP gas pipe and the suction gas pipe should be also well insulated. Not
enough insulation may lead to system performance deterioration or humidity formation.
•This air condition equipment is not intended to be operated by persons with lack of experience
and training, unless they have supervision or instruction concerning use of this air condition
equipment.
•Please keep children away from this air condition equipment.
•If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualied persons in order to avoid a hazard.
•This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety.

2
Safety
CAUTION
R-410A specied tools Remarks
1 Gauge manifold Range:HP ＞4.5MPa,LP ＞2MPa
2 Charge hose Pressure:HP:5.3MPa,LP:3.5MPa
3 Electronic weight for charging R410A No other means permitted
4 Torque wrench
5 Flare tool
6 Copper pipe gauge for adjusting projecting margin
7Vacuum pump tting Vacuum pump must be equipped with
check valve
8 Leakage detector Only Helium detector permitted
•Grounding wire should be connected with the grounding bar. The grounding wire can not
be connected to the gas pipe, water pipe, lightening rod or the telephone grounding wire.
Improper grounding may cause electric shock.
•Units installed on roof should have appropriate access and handrail.
•Use the wrench to fasten the nut and are at proper torque. Excessive torque may cause
ared section to broke leading to refrigerant leakage.
•After refrigerant pipe installation, please take nitrogen leakage test to avoid refrigerant
leakage.
•R-410A is the only permitted refrigerant.
•To avoid mischarging wrong refrigerant, the check valve diameter is changed for R-410A. To
strengthen the pipe, the ared pipe dimension is also changed. Please use R-410A specied
tools as shown below.
•When charging refrigerant, the refrigerant must be in liquid state from the tank.
•To prevent EMC interference on other appliances, please keep indoor unit, outdoor unit,
power cable and connecting wire at least 1m away from those appliances .
•Fluorescent lamp (reverse phase or rapid start type) may interfere the remote controller's
signal. Please install indoor unit away from uorescent lamp. The farther the better.
•Any indoor or outdoor unit which nishes the maintenance, must repower the unit system.
•Children should be supervised to ensure that they do not play with the appliance.
•This appliance can be used by children aged from 8 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if they
have been given supervision or instruction concerning use of the appliance in a safe way and
understand the hazards involved. Children shall not play with the appliance. Cleaning and
user maintenance shall not be made by children without supervision.
•The appliances are not intended to be operated by means of an external timer or separate
remote-control system.
•Keep the appliance and its cord out of reach of children less than 8 years.

3
Installation instruction
For installation, please review the items below:
•Is the connected units quantity and the total capacity in the allowable range?
•Is the refrigerant pipe length in the limited range?
•Is the pipe size proper? And if the pipe is installed horizontally?
•Is the branch pipe installed horizontally or vertically?
•Is the additional refrigerant counted correctly and weighed by the standard balance?
•Is there refrigerant leakage?
•Can all the indoor power supplies be on/off simultaneously?
•Is the power voltage in compliance with the data marked on the rating label?
•Have the address of indoor units, VP units and outdoor units been set?
(1) Before installation
1) Before installation, check respectively if the model, power supply, pipe, wires and parts
purchased are correct.
2) Check if the indoors and outdoors can be combined as the following.
Before installation, read the manual for outdoors, indoors and VP units.
Outdoor Indoor
Gather pipe
Capacity
(100W) Combination type Indoor Qty Total indoor capacity (kBtu/h)
280 Single (10HP) 16 140-364
335 Single (12HP) 19 167-436
400 Single (14HP) 23 200-520
450 Single (16HP) 26 225-585
560 Combination (280+280) 33 280-728 TAS20HR
615 Combination (335+280) 36 307-800 TAS20HR
680 Combination (400+280) 39 340-884 TAS20HR
730 Combination (450+280) 43 365-949 TAS20HR
800 Combination (400+400) 46 400-1040 TAS20HR
850 Combination (400+450) 50 425-1105 TAS20HR
900 Combination (450+450) 53 450-1170 TAS20HR
960 Combination (400+280+280) 56 480-1248 TAS30HR
1010 Combination (450+280+280) 59 505-1313 TAS30HR
1080 Combination (280+400+400) 63 540-1404 TAS30HR
1130 Combination (400+280+450) 64 565-1469 TAS30HR
1180 Combination (450+450+280) 64 590-1534 TAS30HR
1235 Combination (335+450+450) 64 617-1606 TAS30HR
1300 Combination (400+450+450) 64 650-1690 TAS30HR
1350 Combination (450+450+450) 64 675-1755 TAS30HR