Commercial Air Conditioning
SERVICE MANUAL
Models
AD182ALERA AD362AHERA
īŗ Features
īŗ
īŗ Can be connected with the universal outdoor unit
īŗ Infrared control type or wired control type
īŗ Low ambient cooling kit (optional) and low ambient heating kit (optional)
īŗ New friendly refrigerant R410a, environment protection
īŗ Weekly timer (standard)
īŗ Group control function
īŗ Auto restart function
Manual code: SYJS-032-07REV.0 Edition: 2007-12-17
īŗ High energy efficiency
PAM control
2
CONTENTS
1. Description of products & featuresā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦..3
Model: AD182ALERA AD362AHERA
3. Safety precautionā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦...9
5. Parts and functionsā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦12
4. Net dimensionā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦11
2. Specificationā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦7
6. Installation instructionsā¦ā¦ā¦..ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦13
7. Controller functionsā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦25
8. Electrical control functionsā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦
9. Electrical dataā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦..34
10. Troubleshootingā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦........37
11. Noise level chartsā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦.........
Contentsā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦..2
Commercial Air Conditioner
26
47
3
1.DESCRIPTION OF PRODUCTS & FEATURES
Climate type: T1 (see table 1)
Design number (A-G stands for fixed frequency type, R-Z
stands for DC inverter frequency type)
Product type: A stands for heat pump type, refrigerant is R22
B stands for heat pump type, refrigerant is R407C
E stands for heat pump type, refrigerant is R410a
Q stands for cool only type, refrigerant is R410A
Outlook appearance
Product series: A stands for 1 to 1
Applicable voltage: 2 stands for 220~230V/50Hz,
4 stands for 220V/60Hzļ¼N stand for 380~400VAC/50Hz
Cooling / Heating capacity,18=18000BTU/h
Product type : āBā stands for cassette type, āCā stands for
convertible type, āDā stands for duct, āSā stands for wall
mounted type, āQā stands for chiller system, "E" stands for
ceiling concealed type, āUā stands for outdoor unit
Air Conditioner
1.2 Brief Introduction for T1ćT2ćT3 working condition
1.3 Operating Range of Air Conditioners
Temp. Mode Rated Maximum Minimum
DB ā
27 32 15
Indoor
WB ā
19 23 14
DB ā
35 43 10
Cooling
Outdoor
WB ā
24 26 6
DB ā
20 27 10
Indoor
WB ā
14.5 --- --
DB ā
7 23 -10
Heating
Outdoor
WB ā
6 18 ---
Climate type
Type of Air
Conditioner
T1 T2 T3
Cooling Only
18 ā~43ā 10ā~35ā 21ā~52ā
Heat pump
-7ā~43ā -7ā~35ā -7ā~52ā
Electricity Heating
~43ā ~35ā ~52ā
A D 18 2 A L E R A
1.1 Products code explanation
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
4
1.4 Product features
Adopt the much friendlier refrigerant R410a
The air conditioner system adopts the greatly friendly refrigerant R410a, which is protective for the
ozone layer and is good to avoid the earth getting warmer. Benefit for the environment.
Universal outdoor unit
The outdoor unit has been uniformed which can be connected with different type indoor units with
identical capacity such as cassette type, duct type, convertible type etc..
High efficiency filter
Multi-mode for installation
Autoārestart function (optional)
All indoor units have auto-restart function. When the power supply cut off suddenly, the unit will
automatically recover the previous running mode once the power supply is on.
Group control function (with a group controller YR-E12)
Central control function, if connected with a central controller
YCZ-A001
Weekly timing function, if connected with a weekly timer YCS-A001
The unit adopts G3 grade filter, can efficiently filter the dirt etc, and improve the room air quality, at
the same time, the filter can pull out from downside, convenient for maintenance and cleaning.
The indoor unit can be installed with an air return duct or without an air return duct according to
the installation need.
PAM control
PAM adjusts the form of the current wave so that it becomes close to that of the supply voltage wave.
High harmonice are reduced and 99% of the electricity is utilized.
Wider range operation of outside temperature
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
5
1.5 New friendly refrigerant R410A introduction:
ā R410A
The working pressure of R410A is approximately 1.6 times higher than R22. Because the oil in the
refrigerant is different, please do not mix them.
Refrigerant R22 (single) R410A (mixed) R407C (mixed)
Oil Mineral oil (SONTEX 200LT) Synthetic oil (POE oil) Synthetic oil (POE oil)
Pressure ratio 1 Approx. 1.6 Approx. 1.1
ā Operation flow
1. Calculate the refrigerant additional charging
amount, and charge a suitable amount.
1. Air purging by refrigerant is prohibited seriously
2. Use a special vacuum pump with reverse check
mechanism
1. Charge the nitrogen to the set pressure
2. 24 hours later,check if the pressure in the pipe
has reduced
1. Do not connect the power supply
1. Use piping material of the specified thickness
2. Do not use dirty pipe
3. Always flow nitrogen during welding work
hand over
trial running and adjustment
maintenance panel installation
gas leakage check
additional refrigerant charging
evacuation and drying
leakage test
refrigerant piping connection
outdoor unit installation
outdoor unit foundation work
electric wiring work
remote controller installation
insulation work
duct work
drain piping work
refrigerant piping work
indoor unit installation
operation chart preparation
1. Always inspect the used refrigerant
2. Always use the specified refrigerant
refrigerant inspection
prepare work schedule
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
6
ā Piping material
1. Use the correct refrigerant piping and materials for R410A
2. For the pipe wall thickness, see the table below:
Pipe diameter Ī¦6.35 Ī¦9.52 Ī¦12.7 Ī¦15.88 Ī¦19.1
Pipe wall thickness 0.8 0.8 0.8 1.0 1.2
Note: Always observe and comply with the local regulations when installing the refrigerant piping.
ā Tools
R410A work requires a number of special tools (* symbol). Since the tools used in R22 work
cannot be used for R410A, provide the tools separately.
Tool name Process and application
Pipe cutter Piping cutting
*Flaring tool Pipe flaring work
*Torque wrench Flare nut connection
Expander Expansion at pipe connection
Pipe bender Pipe bending work
Refrigerant piping work
Nitrogen gas Pipe oxidation prevention
Welder Pipe brazing
Air tightness test
*Gauge manifold
*Charging hose
Vacuum evacuation and refrigerant
charging operation check
Air tightness test
Refrigerant additional
charging
*Vacuum pump (with
adapter)
Vacuum drying
Electronic scale
Gas leakage detector Gas leakage test
Refrigerant additional
charging
ā Work precautions
Refrigerant check: Before work, check the used refrigerant and prepare materials matched to the
refrigerant.
Refrigerant piping: Observe the basics of refrigerant piping to avoid the unnecessary problems. In
addition, when performing the welding work, seal in the nitrogen gas to the pipes, and prevent it
from the oxidation.
Leak pressure detection: Perform seal detection and make sure there is no refrigerant leakage.
Vacuum drying: If the vacuum pump has not the reverse flow check mechanism, use the pump
together with a reverse flow check adapter.
Additional refrigerant: Charge a suitable amount of refrigerant with a special R410A gauge
manifold and charging hose.
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
7
2. SPECIFICATION
Function
coolin
g
heatin
g
Capacity kW 4.8(1.8--5.8) 5.5(2.0---6.8)
KW
1.65(0.55---2.65) 1.70(0.60---2.65)
W
2650 2650
EER or COP
W/W
2.91(C) 3.24(C)
Dehumidifying capacity
10āĀ³ĆmĀ³/h
A / A
7.5(3.0---12.0)/12A 7.5(3.0---12.0)/12A
Start Current A
Class of anti electric shock
Class 1
Max. operating pressure of heat side Mpa
4.15
Max. operating pressure of cold side Mpa
4.15
Unit model (color) AD182ALERA Grey
Type Ć Number
Speed(H-M-L) r/min
Fan motor output power kW
Air-flow(H-M-L) mĀ³/h
Type / Diameter mm
Total Area mĀ²
Temp. scope
ā
External
ļ¼LĆWĆHļ¼
mmĆmmĆmm
Package
ļ¼LĆWĆHļ¼
mmĆmmĆmm
Drainage pipe (material , I.D./O.D.) mm
Control type (Remote /wired /model)
dB(A)
kg / kg
item Model
AD182ALERA
Total power input
Max. power input
1.8
11
Indoor unit
Fan
centrifugal fan X 2
700Ā±30 / 540Ā±30 / 400Ā±30
50
780
Heat exchanger
TP2M/7X0.5
0.34
2-7
Dimension
1090Ć500Ć220
1174Ć549Ć294
PVC 16/12
wired control
Noise level (H-M-L)
45/41/37
Weight (Net / Shipping)
23/26.5
Running /Max.Running current
Function
coolin
g
heatin
g
Capacity BTU/h 32400 38900
Capacity kW 9.5(2.2~10.5) 11.4(2.5~12.0)
Sensible heat ratio
0.73
kW 3.38(0.50---3.9) 3.15(0.50--3.9)
W
4300 4300
EER or COP
W/W
2.81 3.62
Energy efficiency stage
CA
Dehumidifying capacity
10āĀ³ĆmĀ³/h
A
/
A
15.3ļ¼2.3-17.5ļ¼ 15.0ļ¼2.3-17.5ļ¼
Unit model (color)
Type Ć Number
Speed(H-M-L) r/min
Fan motor output power kW
Air-flow(H-M-L) mĀ³/h
Type / Diameter mm
Total Area mĀ²
Temp. scope
ā
External
ļ¼LĆWĆHļ¼
mmĆmmĆmm
Package
ļ¼LĆWĆHļ¼
mmĆmmĆmm
Drainage pipe (material , I.D./O.D.) mm
Control type (Remote /wired)
Outlet distribution hole dimension mm
kW
dB(A)
kg / kg
Running /Max.Running current
Weight (Net / Shipping)
62/70
Electricity Heater 0
Noise level (H-M-L)
50/46/42
PVC 26/32
wired
853Ć254
inner groove pipe /Ļ7
0.479
2-7
Dimension
1197Ć830Ć350
1430Ć940Ć420
3.5
Indoor unit
AD362AHERA(grey)
Fan
centrifugal X2
1090+30/-/930+50
0.4
2400/2070/1760
Heat exchange
r
item Model
AD362AHERA
Total power input
Max. power input
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
Norminal condition: indoor temperature (cooling): 27āDB/19āWB, indoor temperature (heating): 20āDB
Outdoor temperature(cooling): 35āDB/24āWB, outdoor temperature(heating): 7āDB/6āWB
The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity
meter. It is a sound pressure noise level.
Note: ā is the real time
analyser position
duct unit without auxiliary duct:
duct unit with auxiliary duct:
Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction.
Testing method:
1.4m
2m
duct
auxiliary duct
2m
1.4m
1m
auxiliary duct
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
8
3. Safety precaution
3. Safety precaution
Carefully read the following information in order to operate the airconditioner correctly.
Below are listed three kinds of Safety Cautions and Suggestions.
WARNING!
CAUTION!
Incorrect operations may result in injuries or machine damages; in some cases may
cause serious consequences.
Incorrect operations may result in severe consequences of death or serious injuries.
INSTRUCTIONS: These information can ensure the correct operation of the machine.
Be sure to conform with the following important Safety Cautions.
The Safety Cautions should be at hand so that they can be checked at any time when needed.
If the conditioner is transferred to the new user, this manual should be as well transferred to the new user.
WARNING!
If any abnormal phenomena is found
(e. g.smell of firing), please cut off the
power supply immediately, and contact
the dealer to find out the handling
method.
Don't dismantle the outlet of the
outdoor unit.
The exposed fan is very dangerous
which may harm human beings.
switch
off
In such case, to continue using the
conditioner will damage the conditioner,
and may cause electrical shock or fire
hazard.
Incorrect maintenance and repairment
may cause water leak, electrical shock
and fire hazard.
When the unit needs maintenance and
repairment, please call dealer to handle it.
After the unit being used for a long time,
the base should be checked for any
damages.
If the damaged base is not repaired, the
unit may fall down and cause accidents.
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
9
Air-conditioner can't be installed in
the environment with inflammable
gases because the inflammable gases
near to air-conditioner may cause fire
hazard.
Connect earthing wire.
Use discharge pipe correctly to ensure
efficient discharge.
Earthing wire should not be con-
nected to the gas pipe, water pipe,
lightning rod or phone line, in-correct
earthing may cause shock.
Incorrect pipe use may cause water
leaking.
Earthing
WARNING!
Installed electrical-leaking circuit
breaker.
It easily cause electrical shock without
circuit breaker.
Please let the dealer be responsible for
installing the conditioner.
Incorrect installation may cause water
leak, electrical shock and fire hazard.
Call the dealer to take measures to
prevent the refrigerant from leaking.
If conditioner is installed in a small
room be sure to take every measure in
order to prevent suffocation accident
even in case of refrigerant leakage.
When conditioner is removed or
reinstalled, dealer should be responsible
for them.
Incorrect installation may cause water
leaking, electrical shock and fire hazard.
Nothing or nobody is permitted to
placed on or stand on outdoor unit.
The falling of goods and people may
cause accidents.
Don't operate the air-conditioner with
damp hands.
Otherwise will be shocked.
Only use correctly-typed fuse.
May not use wire or any other materials
replacing fuse, other-wise may cause
faults or fire accidents.
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
10
4. Net dimension
air discharge hole
1
Z
[
\
]
^
_
`
a
b
Z
[
\
]
^
_
`
a
b
5446 8<729 575 5549 699 <<4549 =;4 664
AD182ALERA
AD362AHERA
800
1320
830
1200
170 270
250
365
185
250
60
45
1105
(mm)
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
1
5. Parts and Functions
Electrical components Case
Drain pan
Evaporator
Air outlet frame
AD182ALERA
AD362AHERA
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Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
12
6. Installation Instructions
13
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AD182ALERA6.1 Installation for
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
14
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Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
15
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Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
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Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
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Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
17
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Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
18
19
AD 2A ERA6. Installation for 2 36 H
needs]
2. Choose installation place
(1) The chosen installation place should meet the following requirements and get the userī²s consent.
Place ensures ideal airflow distribution.
The passage of airflow has no obstacles.
When importing outside air, it should be imported directly from outdoors. (if the pipe can not be extended, it also can
not be imported from top)
Place ensures enough space for maintenance.
The pipe length between indoor and outdoor unit is in the permitted limit (referring to outdoor unit installation part).
The indoor unit, outdoor unit, electric wire and connection wire is at least 1m away from television and radio. This is
to avoid the image disturbance and noise caused by the above-mentioned home appliance. (Even if 1m away, if the
electromagnetic wave is too strong, it can also cause noise.)
(2) The height of ceiling
The indoor unit can install on the ceiling, which height is no more than 3m.
(3) Install and use the hoisting screw. Check if the installation place can bear the weight of unit assembly.
If not certain, strengthen it before install the unit.
(600x600)
Over 100
Over 900
Air out
Air in
Checking meatus
Ceiling
Over 300
Over 200
Confirm the way to move the unit to the installation place.
Before moving the unit to the installation place, do not remove their packages.
When have to remove the package, use a soft material or protection board with rope to lift the unit assembly to
avoid unit damage or bumping a scrape.
(1) The position relation among hoisting screw (unit: mm)
360
1270
250
794
853
1103
Down side
Up side
3. Preparation before installation
1. Before installation [Before finishing installation, do not throw the attached parts installation
(2) If necessary, cut the opening installation and checking needed on the ceiling. (If has ceiling)
Before installation, finish the preparation work of all the pipes (refrigerant, drainage) and wire (wire controller
connection wire, indoor and outdoor unit connection wire) of indoor unit, so that after installation, they can be
immediately connected with outdoor unit.
Cut the opening on the ceiling. Maybe it needs to strengthen the ceiling to keep the ceiling even and flat and
prevent the ceiling from vibration. For details, please consult to the builder.
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
(3) Hanger bolts installation
Use care of the piping direction when the unit is installed.
Hanging bolt M10
Hole-in anchor
Hole-in plug
Insert
Concrete
(Use M10 screw bolt)
In order to bear the weight of the unit, for existed
ceiling, using foundation screw bolt, for new ceiling,
using burying embedded screw bolt, burying screw
bolt or spot supplied other parts.
Before going on installation, adjust the gaps with ceiling.
4. Installation of indoor unit
Fix the indoor unit to the hanger bolts.
If required, it is possible to suspend the unit to the beam, etc.
Directly by use of the bolts without using the hanger bolts.
When the dimensions of main unit and ceiling holes does not match, it can be adjusted with the slot holes of hanging
bracket.
Note
Adjusting to the levelness
(a) Adjust the out-of levelness using a level or by the following method.
Make adjustment so that the relation between the lower surface
of the unit proper and water level in the hose becomes as given
below.
(b) Unless the adjustment to the levelness is made properly, malfunctioning or failure of the float switch may occur.
PVC hose
Piping side
Supply water
Water level
0~5 mm
(0~0.2")
Bring the piping side slightly lower.
Hanging bolt
M10 nut
Main unit
M10 washer
M10 spring washer
Drain hose
Stage
difference
part
Drain socket
Drain socket
Main unit
VP 25 joint
(field purchased)
Pipe cover(large)
[for insulation]
(accessory)
VP 25
(field purchased)
Pipe cover
[for insulation]
(field purchased)
Drain hose
(accessory)
Pipe cover(small)
[for insulation]
(accessory)
Clamp
(accessory)
Adhesion
For drain pipe, use hard PVC general purpose pipe VP-25(I.D.1")
which can be purchased locally. When connecting, insert a PVC
pipe end securely into the drain socket before tightening securely
using the attached drain hose and clamp. Adhesive must not be
used connection of the drain socket and drain hose (accessory).
(c)
5. Drain Piping
(a) Drain piping should always be in a downhill grade (1/50~1/100) and avoid riding across an elevation or making
traps.
When connecting the drain pipe to unit, pay suffcient attention not to apply excess force to the piping on the unit
side. Also, fix the piping at a point as close as possible to the unit.
Do not pipe under water
Keep free from traps
Avoid riding across an elevation
Air vent
Good piping
1.5m ~ 2m
Suspension
bolts
Heat
insulation
A downhill grade
of 1/100 or more
(b)
Improper piping
VP 30
Secure the elevation as high as possible
(approx. 100 mm)
A downhill grade of
1/100 or more
When constructing drain piping for several units,
position the common pipe about 100 mm below
the drain outlet of each unit as shown in the sketch.
Use VP-30(11/4") or thicker pipe for this purpose.
(d)
(e)
The stiff PVC pipe put indoor side should be heat insulated.
Model: AD182ALERA AD362AHERA
Commercial Air Conditioner
20
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