LG Multi-Inverter Type User manual

Multi Air Conditioner
SVC MANUAL(General)
MODEL : Multi-Inverter Type
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Air Conditioner Service Manual
CONTENTS
Part 1 General Information.........................................................................................................2
1. Safety Precautions........................................................................................................3
2. Model Line Up................................................................................................................6
3. Nomenclature ..............................................................................................................11
Part 2 Functions & Controls.....................................................................................................13
1. List of Functions & Controls......................................................................................14
2. Air Flow .......................................................................................................................16
3. Air Purifying.................................................................................................................18
4. Installation Functions.................................................................................................19
5. Reliability .....................................................................................................................23
6. Convenience Functions & Controls .........................................................................24
7. Special Function & KIT...............................................................................................36
Part 3 Test Run..........................................................................................................................39
1. Check before Test Run ..............................................................................................40
2. Test Run Flow chart ...................................................................................................41
3. Test Runing..................................................................................................................42
Part 4 Trouble Shooting Guide ...............................................................................................45
1. Self-diagnosis Function ......................................................................................46
2. Pump Down ..........................................................................................................50
3. Evacuation............................................................................................................51
4. Gas Charging .......................................................................................................52
5. Cycle Part .............................................................................................................53
6. Electronic Parts....................................................................................................54

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
1. Safety Precautions ............................................................................................................3
2. Model Line Up .....................................................................................................................6
3. Nomenclature....................................................................................................................11
Part 1 General Information

Part 1 General Information
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
1. Safety Precautions
1.1 Cautions in Repair
To prevent injury to the user or other people and property damage, the following instructions must be followed.
■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the follow-
ing indications.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
■Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
Dangerous Voltage
Be sure to disconnect the power cable plug from the plug socket before disas-
sembling the equipment for a repair.Internal components and circuit boards are at
main potential when the equipment is connected to the power cables. This volt-
age is extremely dangerous and may cause death or severe injury if come in con-
tact with it.
Do not touch the discharging refrigerant gas during the repair work.
The discharging refrigerant gas.The refrigerant gas can cause frostbite.
Release the refrigerant gas completely at a well-ventilated place first.
Otherwise, when the pipe is disconnected, refrigerant gas or refrigerating
machine oil discharges and it Can cause injury.
When the refrigerant gas leaks during work, execute ventilation. If the refrigerant
gas touches to a fire, poisonous gas generates. A case of leakage of the refriger-
ant and the closed room full with gas is dangerous because a shortage of oxygen
occurs. Be sure to execute ventilation.
When removing the front panel or cabinet, execute short-circuit and discharge
between high voltage capacitor terminals. If discharge is not executed, an electric
shock is caused by high voltage resulted in a death or injury.
Do not turn the air-conditioner ON or OFF by plugging or unplugging the power
plug. There is risk of fire or electrical shock.

Part 1 General Information
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Do not turn on the breaker under condition that front panel and cabinet are
removed.
Be sure to earth the air conditioner with an earthing conductor connected to the
earthing terminal.
Conduct repair works after checking that the refrigerating cycle section has
cooled down sufficiently. Otherwise, working on the unit, the hot refrigerating
cycle section can cause burns.
Do not tilt the unit when removing panels. Otherwise, the water inside the unit
can spill and wet floor.
Do not use the welder in a well-ventilated place. Using the welder in an enclosed
room can cause oxygen deficiency.
Be sure to turn off power switch before connect or disconnect connector, or parts
damage may be occurred.
Do not use a defective or underrated circuit breaker. Use the correctly rated
breaker and fuse. Otherwise there is a risk of fire or electric shock.
Install the panel and the cover of control box securely. Otherwise there is risk of
fire or electric shock due to dust, water etc.
Indoor/outdoor wiring connections must be secured tightly and the cable should
be routed properly so that there is no force pulling the cable from the connection
terminals. Improper or loose connections can cause heat generation or fire.
Do not touch, operate, or repaire the product with wet hands. Hoding the plug by
hand when taking out. Otherwise there is risk of electric shock or fire.

Part 1 General Information
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
1.2 Inspections after Repair
Check to see if the parts are mounted correctly and wires are connected.
Improper installation and connections can cause an electric shock or an injury.
Check the installation platform or frame has corroded. Corroded installation plat-
form or frame can cause the unit to fall, resulting in injury.
Be sure to check the earth wire is correctly connected.
After the work has finished, be sure to do an insulation tset to check the resis-
tance is 2[Mohm] or more between the charge section and the non-charge metal
section (Earth position). If the resistance value is low, a disaster such as a leak or
electric shock is caused at user’s side.
Check the drainage of the indoor unit after the repair. If drainage is faulty the
water to enter the room and wet floor.
Check to see if the power cable plug is not dirty or loose. If the plug is dust or
loose it can cause an electrical shock or fire.
Do not use a joined power cable or extension cable, or share the same power
outlet with other electrical appliances. otherwise, it can cause an electrical shock,
excessive heat generation or fire.
Do not insert hands or other objects through the air inlet or outlet while the prod-
uct is operating. There are sharp and moving parts that could cause personal
injury.
Do not block the inlet or outlet of air flow. It may cause product failure

2. Model Line Up
Part 1 General Information
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
2.1 Indoor units
2.05
(7)
2.64
(9)
3.52
(12)
5.28
(18)
7.03
(24)
ART COOL
SP1
SF
AMNH096AP*1
[MA09AH* NP1]
AMNH09GAF*1
[MA09AH* NF1]
AMNH12GAF*1
[MA12AH* NF1]
AMNH126AP*1
[MA12AH* NP1]
SZ
SU
S3
1-way
TE1 AMNH09GTEF0
[MT10AH NE1]
AMNH12GTEF0
[MT12AH NE1]
AMNH18GTEF0
[MT18AH NE1]
Category Type
Model names
Capacity, kW(kBtu/h)
Chassis
Wall mounted
ART COOL
Mirror
4-way
Ceiling
cassette
S4 AMNH07GD4L0
[MS07AH N40]
AMNH12GD4L0
[MS12AH N40]
S5 AMNH18GD5L0
[MS18AH N50]
AMNH24GD5L0
[MS24AH N50]
AMNH07GDZ*0
[MC07AH* NZ1]
AMNH12GDU*0
[MC12AH* NU1]
AMNH18GD3*0
[MC18AH* N31]
AMNH24GD3*0
[MC24AH* N31]
SE
S8
AMNH09GDE*1
[MC09AH* NE1]
AMNH18GD8*1
[MC18AH* N81]
AMNH24GD8*1
[MC24AH* N81]
AMNH07GDE*1
[MC07AH* NE1]
AMNH12GDE*1
[MC12AH* NE1]
TC1 AMNH09GTCC0
[MT09AH NC1]
AMNH12GTCC0
[MT11AH NC1]
TH AMNH24GTHF0
[MT24AH NH0]
AMNH09GDU*0
[MC09AH* NU1]
AMNH09GD4L0
[MS09AH N40]
* indicates color of panel(B:Blue, C:Cherry, D:Wood, M:Metal, R:Mirror, V:Silver, W:White wood, E:Red, G:Gold,
H:White Silver, 1:KISS)

Part 1 General Information
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
B1 AMNH09GB1A0/1
[MB09AHL N10/1]
AMNH12GB1A0/1
[MB12AHL N10/1]
B2 AMNH18GB2A0/1
[MB18AHL N20/1]
AMNH24GB2A0/1
[MB24AHL N20/1]
Low
static
pressure
(Slim)
Category Type
Model names
Capacity, kW(kBtu/h)
Chassis 2.05
(7)
2.64
(9)
3.52
(12)
5.28
(18)
7.03
(24)
BH AMNH186BHA0
[MB18AH NH0]
AMNH246BHA0
[MB24AH NH0]
Low
static
pressure BT AMNH096BTG0
[MB09AHL NT0]
AMNH126BTG0
[MB12AHL NT0]
AMNH186BTG0
[MB18AHL NT0]
Built in BP AMNH096BPA0
[MB09AHB NP0]
AMNH126BPA0
[MB12AHB NP0]
VE AMNH096VEA0
[MV09AH NE0]
AMNH126VEA0
[MV12AH NE0]
VB AMNH186VBA0
[MV18AH NB0]
AMNH246VBA0
[MV24AH NB0]
High
static
pressure
Ceiling & floor
Ceiling
concealed
duct

Part 1 General Information
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Heat pump
A2UW146FA3
[FM15AH UL3]
A2UW166FA0
[FM17AH UL0]
A2UW166FA1
[FM17AH UL1]
A3UW186FA0
[FM19AH UE0]
No. of connectable indoor units Max.2 Max.3
Total capacity index of connectable kW 6.15 7.03 8.79
indoor units kBtu/h 21 24 30
Power supply 1ø, 220-240V, 50Hz
Chassis
2.2 Outdoor units
Heat pump
A3UW216FA3 [FM21AH UE3] A4UW246FA3 [FM25AH UE3] A4UW276FA3 [FM27AH UE3]
No. of connectable indoor units Max.3 Max.4
Total capacity index of connectable kW 9.67 11.4 12.0
indoor units kBtu/h 33 39 41
Power supply 1ø, 220-240V, 50Hz
Chassis
Heat pump
A5UW306FA3 [FM30AH UE3] A5UW406FA3 [FM38AH UH3]
No. of connectable indoor units Max.5
Total capacity index of connectable kW 14.1 15.2
indoor units kBtu/h 48 52
Power supply 1ø, 220-240V, 50Hz
Chassis

Part 1 General Information
- 9 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Heat Pump
A6UW368FA0[FM37AH UE0] A7UW428FA3[FM41AH U33] A8UW488FA3[FM49AH U33]
No. of connectable indoor units Max.6 Max.7 Max.8
Number of BD units to be connected Max.2
Total capacity index of connectable kW 13.5 15.8 18.2
indoor units kBtu/h 46 54 62
Power supply 3ø, 380-415V, 50Hz
Chassis
Heat Pump
A9UW548FA3[FM57AH U33]
No. of connectable indoor units Max.9
Number of BD units to be connected Max.3
Total capacity index of connectable kW 21.4
indoor units kBtu/h 73
Power supply 3ø, 380-415V, 50Hz
Chassis
(3 phase)
Heat Pump
A7UW406FA3
[FM40AH UH3]
A8UW486FA3
[FM48AH U33]
A9UW566FA3
[FM56AH U33]
No. of connectable indoor units Max.7 Max.8 Max.9
Number of BD units to be connected Max.2
Total capacity index of connectable kW 15.2 18.2 21.4
indoor units kBtu/h 52 62 73
Power supply 1ø, 220-240V, 50Hz
Chassis
(1 phase)

Part 1 General Information
- 10 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
No. of connectable indoor units
Max. 2 Max. 3 Max. 4
Model name PMBD3620 PMBD7220 PMBD3630 PMBD7230 PMBD3640
Connectable indoor unit capacity kW 2.05~7.03 5.28~10.6 2.05~7.03 5.28~10.6 2.05~7.03
kBtu/h 7~24 18~36 7~24 18~36 7~24
BD unit
2.3 BD(Branch distributor) units

Part 1 General Information
3. Nomenclature
3.1 Indoor Unit(Global)
3.2 Outdoor Unit(Global)
AMN H G
07 4DL0
Serial number
A4U W 624 F A 3
Electrical rating
Indicates that this is multi system indoor unit using R410A
Model type
H : Heat pump
Ex) 7,000 Btu/h → '07', 18,000 Btu/h → '18'
Cooling/heating capacity
Electrical rating
6 : 1ø, 220-240V, 50Hz G: 1ø, 220-240V, 50Hz/60Hz
Chassis name
Indoor unit type
L : Wall Mounted , A : ART COOL
D : ART COOL Mirror, T : Ceiling cassette
B : Ceiling concealed duct
V : Ceiling & floor
Function
A : Basic, L : Nano plasma (Wall Mounted)
C: Plasma(ceiling cassette), G: Low static motor
ART COOL(Mirror) type front panel color
B : Blue, C : Cherry, D : Wood, M : Metal, R : Mirror, V : Silver,
W : White wood, E : Red, G : Gold, H:White Silver, 1 : KISS
Indicates that this is multi system outdoor unit using R410A
Ex) A4U : Connectable max. 4 indoor units
A6U : Connectable max. 6 indoor units
Model type
W : DC inverter heat pump
Ex) 24,000 Btu/h → '24', 48,000 Btu/h → '48'
Cooling/heating capacity
6 : 1ø, 220-240V, 50Hz
8 : 3ø, 380-415V, 50Hz
Multi type
Function
A : Basic
F : Free joint multi type
Serial number
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Part 1 General Information
3.3 Indoor Unit(Europe)
3.5 BD Unit(Global)
MC12AHB
Color of front panel (MA-, MC- model)
B : Blue, C : Cherry, D : Wood, M : Metal, R : Mirror,
V : Silver, W : White wood
Type of duct indoor (MB- model)
No mark : High static pressure model
L : Low static pressure model
B : Builti in model
Model type
C : Cooling only, H : Heat pump
Type of refrigerant
A : R410A
Cooling/heating capacity
Ex) 7,000 Btu/h → '07', 18,000 Btu/h → '18'
Type of indoor units
S : Wall mounted, A : ART COOL, C : ART COOL Mirror
B : Ceiling concealed duct T : Ceiling cassette,
V : Ceiling & Floor
Model type
M : Multi type air conditioner
FM 19 A H
Model Ttype
C : Cooling only, H : Heat pump
Type of refrigerant
A : R410A
Cooling/heating capacity
Ex) 18,000 Btu/h → '18', 48,000 Btu/h → '48'
Model type
FM : Free joint type MPS inverter multi
( , )
P M BD 36 2 0
Serial number
Number of connectable indoor units
Max. capacity of connectable indoor units
Ex) 36,000 Btu/h →'36', 72,000 Btu/h →'72'
BD : Branch distributor
M : Multi system outdoor unit
P : Parts
3.4 Outdoor Unit(Europe)

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Part 2 Functions & Controls
1. List of Functions & Controls ........................................................................................14
2. Air flow ............................................................................................................................16
2.1 Auto swing (left & right) ...............................................................................................16
2.2 Auto swing (up & down) ..............................................................................................16
2.3 Chaos swing (up/down)...............................................................................................16
2.4 Air flow step.................................................................................................................17
2.5 Chaos wind (auto wind)...............................................................................................17
2.6 Jet Cool Mode Operation ............................................................................................17
2.7 Swirl wind Swing .........................................................................................................17
3. Air purifying ....................................................................................................................18
3.1 PLASMA Air Purifying System ....................................................................................18
4. Installation Functions ....................................................................................................19
4.1 E.S.P. (External Static Pressure) Setting ....................................................................19
4.2 High Ceiling operation.................................................................................................22
5. Reliability ........................................................................................................................23
5.1 Hot start ......................................................................................................................23
5.2 Self-diagnosis Function...............................................................................................23
5.3 Soft dry operation........................................................................................................23
6. Convenience Functions & Controls .............................................................................24
6.1 Auto changeover operation ........................................................................................24
6.2 Auto cleaning operation ..............................................................................................28
6.3 Auto Operation (Fuzzy Operation) ..............................................................................29
6.4 Auto restart Opeartion.................................................................................................30
6.5 Child Lock Function.....................................................................................................31
6.6 Forced operation .........................................................................................................31
6.7 Group Control..............................................................................................................32
6.8 Sleep Timer Operation ................................................................................................34
6.9 Timer(On/Off) ..............................................................................................................34
6.10 Weekly Program........................................................................................................34
6.11 Two Thermistor Control.............................................................................................35
7. Special Function & KIT ..................................................................................................36
7.1 Zone Controller ...........................................................................................................36
7.2 Low Ambient control....................................................................................................36
7.3 Space Control .............................................................................................................37
7.4 Auto Elevation Grille....................................................................................................37
7.5 Defrost Control(Heating) .............................................................................................38

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Part 2 Functions & Controls
1. List of Functions & Controls
Auto swing (left & right) Optional
Auto swing (up & down) Optional
Chaos swing (up & down) Optional
Airflow steps (fan/cool/heat)
Chaos wind (auto wind) Optional
Jet cool (Power wind)
Swirl wind Swing Optional
Deodorizing filter
Plasma air purifier Optional
Pre-filter
(washable/anti-fungus)
Drain pump Optional
E.S.P. control Optional
Electric heater (operation) Optional
High ceiling operation Optional
Hot start
Self diagnosis
Soft dry operation
Auto changeover Optional
Auto clean Optional
Auto operation Optional
(artificial intelligence)
Auto restart operation
Child lock Optional
Forced operation
Group control Optional
Sleep mode
Timer (on/off)
Timer (weekly)
Two thermistor control Optional
Standard wired remote Optional
controller
Deluxe wired remote controller Optional
Simple wired remote controller Optional
Wired remote Controller Optional
(for hotel use)
Wireless remote controller Optional
(simple)
Wireless LCD remote control Optional
General central controller Optional
(Non LGAP)
Dry contact Optional
Category Function Description Remark
Horizontal Airflow Direction control
Vertical Airflow Direction control
Vertical Airflow Direction control
Indoor Fan speed Control
Indoor Fan speed Control by chaos pattern
Powerful cooling mode
Distribute & stir the Air inside.
Air filtration using Deodorizing filter
Air filtration using plasma filter
Air filtration using pre-filter
Drain water pump
Changeable External Static Pressure
Electric heater
Function to Control the Air Volume by Ceiling Height
To prevent cold wind blow on heating mode start
Error code displays
Dehumidification
Cooling mode is automatically changed to heating mode and
vice verse
After cooling operation, this function makes the
evaporator dry
Air volume & set temp. are automatically selected for comfort
on Cooling/Heating mode
When power returns after a power failure, unit restarts in the
previous operating mode
Protect the unit operation without approval
Operation without remote controller
Where several products are linked, one specific control
device can control a specific number of products.
Air volume & set temp. are automatically changed for com-
fortable sleep
Operation by Timer setting
Operation by weekly reservation
Option to control temperature by referring thermistor in the
Indoor unit or the LCD wired remote.
Standard wired remote controller
Deluxe wired remote controller
Simple wired remote controller
Wired remote controller (for hotel use)
Wireless remote controller (simple)
Wireless LCD remote control
General central controller
Dry contact
Airflow
Installation
Air purifying
Reliability
Convenience
Individual control
CAC network
function

- 15 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Part 2 Functions & Controls
Network Solution (LGAP) Optional
PDI
(Power Distribution Indicator) Optional
PI 485 Optional
Zone control Optional
Low ambient operation
Space Control Optional
Auto Elevation Optional
Defrost / Deicing
High pressure switch Optional
Low pressure switch Optional
Phase protection Optional
Restart delay Optional
(3-minutes)
Self diagnosis
Soft start Optional
Test function
Category Function Description Remark
Network Solution (LGAP)
PDI (power distribution indicator)
Network control using PI 485 (Internet)
control the operation of the Air conditioning unit where each
zone
For operation at low temp.
Vanes angle can be controlled by pair.
Grille is automatically down to clean
Condenser frost prevention
Detect high pressure for safety
Detect low pressure for safety
Misconnection prevention for three phase
For overload prevention
Error code displays
Soft start for compressor
Test operation
CAC network
function
Special function
& kit
Functions for
outdoor
Notes: The Exploded View part has the particular Function table for each model.

- 16 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Part 2 Functions & Controls
2. Air flow
2.1 Auto swing (left & right)
RightLeft
110°~ 120°
Open
Close
110°~ 120°
Mode2
Mode3
Mode4
Mode5
Mode6
Mode7
Mode8
Mode9
OPEN
CLOSED
7~8°
110~120°
•By the horizontal airflow direction control key input, the left/right louver automatically operates with the auto swing or it
is fixed to the desired direction.
2.2 Auto swing (up & down)
•By the auto swing key input, the upper/lower vane automatically operates with the auto swing or it is fixed to the
desired direction.
2.3 Chaos swing (up/down)
•By the Chaos swing key input, the upper/lower vane automatically operates with the chaos swing or it is fixed to the
desired direction.
NOTE: Some Models are different by swing width and swing pattern.

- 17 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Part 2 Functions & Controls
2.4 Air flow step
•Indoor fan motor control have 6 steps.
•Air volume is controlled "SH", "H", "Med", Low" by remote controller.
•"LL" step is selected automatically in Hot start operation.
2.5 Chaos wind (auto wind)
•When "Auto" step selected and then operated, the high, medium, or low speed of the airflow mode is operated for
2~15 sec. randomly by the Chaos Simulation
2.6 Jet Cool Mode Operation
•While in heating mode or Fuzzy operation, the Jet Cool key cannot be input.
When it is input while in the other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operat-
ed.
•In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min. at cooling mode operation.
•In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C.
•When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.
•When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then operated
in order that the air outflow could reach further.
2.7 Swirl wind Swing
•It is the function for comfort cooling/heating operation.
•The diagonal two louvers are opened the more larger
than the other louvers. After one minute, it is opposite.
•Comparison of Air Flow Types
4-Open (conventional) Swirl Swing (New)
LL Very low, In heating mode
L Low
M Med
H High
SH Super high
Auto Chaos wind
Step Discription
Vane 4
Vane 2
Vane 1 Vane 3

- 18 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Part 2 Functions & Controls
3.1 PLASMA Air Purifying System
The PLASMA Air Purifying System not only removes microscopic contaminants and dust, but also removes house
mites, pollen, and pet fur to help prevent allergic diseases like asthma. This filter that can be used over and over again
by simply washing with water.
3. Air purifying
Ionizer Photo-Catalyst Coated Mesh
Dust particles
Odour
Dust electrode discharge
Odour molecule
Generating plasma
+
+
+
+
Polluted Air Purified fresh Air
+4.8KV discharge
+

- 19 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Part 2 Functions & Controls
4.1 E.S.P. (External Static Pressure) Setting
4.1.1 Open the rear cover of the wired remote-controller to set the mode.
4.1.2 Select one of three selectable modes as follows.
■Without Zone System
1. Position V-H, F-H
•This position sets the maximum E.S.P. as a default set.
2. Position V-L
•This position sets the minimum E.S.P. as a default set.
■With Zone System
1. Position V-H
•Maximum E.S.P. setting & Fan speed is varied according to the state of dampers by micom.
2. Position F-H
•Maximum E.S.P. setting & Fan speed doesn't vary according to the opening & closing of dampers.
3. Position V-L
•Minimum E.S.P setting & Fan speed is varied according to the state of dampers by micom.
* Maximum : 8mmAq
Minimum : 0mmAq
4.1.3 Move the slide switch to set position.
4.1.4 Close the rear cover and check if it works normally.
4. Installation Functions
TH
R14H
SW TH
REMO
MAIN
2TH OP7
R18H
R17H
OP6
LO
STAND
SW HIGH
HI R03S
C070 R04S R02S
R01S
OP3 OP2 OP1
R19H
R11H
R13H R12H OP5R16H OP4
R15H
CO1H
V-H
V-L
F-H
Slide switch for ceiling height