Fujitsu AU G18LVLB Series Service manual

AIR CONDITIONER
1 phase type
Simultaneous multi system
SIMULTANEOUS MULTI INDOOR
AUG18LVLB × 2
AUG22LVLA × 2
AUG24LVLA × 2
AUG18LVLB ×3
ARG22LMLA × 2
ARG24LMLA × 2
ARG18LLTB × 2
ARG18LLTB × 3
ABG18LVTB × 2
ABG22LVTA × 2
ABG24LVTA × 2
ABG18LVTB ×3
OUTDOOR
AOG36LBTB
AOG45LBTB
AOG54LBTB
DESIGN & TECHNICAL MANUAL
DTR_SSM002E_03
2016.07.08

1. GENERAL INFORMATION
2. INDOOR UNIT (SIMULTANEOUS MULTI)
3. OUTDOOR UNIT
4. SYSTEM DESIGN
5. OPTIONAL PARTS
CONTENTS

1. GENERAL INFORMATION
AIR CONDITIONER
1 phase type
Simultaneous multi system
DTR_SSM002E_01--CHAPTER01
2016.01.25

CONTENTS
1. GENERAL INFORMATION
1. FEATURES OF SYSTEM··············································································01-01
1-1. PERFORMANCE AND ENERGY SAVING·····················································01-01
1-2. EASY INSTALLATION ···················································································01-02
1-3. QUIET OPERATION·······················································································01-03
1-4. SIMULTANEOUS MULTI SYSTEM ································································01-04
1-5. CONTROL SYSTEM·······················································································01-05
2. MODEL LINE UP ····························································································01-08
2-1. INDOOR UNITS······························································································01-08
2-2. OUTDOOR UNIT ····························································································01-09
2-3. CONTROLLER ······························································································· 01-10
2-4. BRANCH PIPES····························································································· 01-11
2-5. CASSETTE GRILLE······················································································· 01-12
2-6. OTHERS (optional parts) ·············································································· 01-13

- (01-01) -
GENERAL INFORMATION GENERAL INFORMATION
FEATURES OF SYSTEM1.
PERFORMANCE AND ENERGY SAVING1-1.
DC TWIN ROTARY COMPRESSOR

Compressor
efficiency
High
High
Compressor capacity
DC Twin Rotary compressor
DC twin rotary compressor
Efficiency in all load regions is good.
Especially good performance from low to
medium at normal operation.
High efficiency
compressor motor
Optimized refrigerant
flow design
Highly accurate parts
DC FAN MOTOR

Miniaturized, low noise,
high efciency, multi-stage
DC fan motor is mounted.
PEAK CUT FUNCTION

Suppresses maximum capacity and performs energy-saving operation and can prevent breaker
tripping.
This function performs operation by setting a peak current value and reducing the Input Power.
* Performance drops by reducing the Input Power preferentially.
Level 1 ... Performs operation which suppresses the Input Power to almost 0% by stopping the
compressor.
Level 2 ... Performs operation which suppresses the Input Power to 50% of the rated Input Power
value.
Level 3 ... Performs operation which suppresses the Input Power to 75% of the rated Input Power
value.
Level 4 ... Performs operation which suppresses the Input Power to the rated Input Power value
(100%).
Capacity
Time
Setting level
Peak cut
Signal input
Control
device
W

- (01-02) -
GENERAL INFORMATION GENERAL INFORMATION
EASY INSTALLATION1-2.
4-DIRECTIONS PIPING

CONNECTION
Four directions piping connection is
possible. The perfect route can be selected
according to the installation.
LOW OUTDOOR

AIR TEMPERATURE
CORRESPONDENCE
Both cooling and heating operations can be
performed when the outdoor air temperature is
low.
EXTERNAL OUTPUT (OPTION)

Compressor status output
z
This output indicates the outdoor unit
operation status's On / Off.
Error status output
z
This output indicates the outdoor unit and
connected indoor unit's Normal / Error.
BLUE FIN HEAT EXCHANGER

Corrosion-resistance of the heat exchanger
even in coastal areas has been improved
by blue n treatment of the outdoor unit
heat exchanger.
Blue n heat exchanger
Cobalt Blue protection
Standard chromate protection
Aluminium base material
Hydrophilic coating
SERVICE, MAINTENANCE

"Error display" and "Operating information" can •
be explained by LED display.
Pump down operation can be performed by •
one button when refrigerant recovery.
Rear
Front
Lateral
Bottom
Cooling -15 ºC
Heating
Dry-bulb -15 ºC
Wet-bulb -20 ºC

- (01-03) -
GENERAL INFORMATION GENERAL INFORMATION
QUIET OPERATION1-3.
LOW NOISE FUNCTION

Suppresses operating sound.
This function suppresses the outdoor unit noise value to the following 2 level.
* Performance may drop depending on the outside air temperature condition, etc.
Level 1 ... Rated noise value -2dB
Level 2 ... Rated noise value -4dB
100%
Air
conditioning
load factor
Capacity Down
Operation
sound
Low noise mode
0
0
Heat load
(time)

- (01-04) -
GENERAL INFORMATION GENERAL INFORMATION
SIMULTANEOUS MULTI SYSTEM1-4.
 IDEAL COMFORTABLE AIRFLOW DISTRIBUTION
Can support various installation
scenes from ofce to commercial
space by same place multi
connection of up to 3 units.
Indoor units distributed layout according to the shape and number
of people and lighting conditions of the room even on wide oors
and atypical oors. Ideal comfortable airow distribution can be
realized.
Installation according to oor
layout
Installation according to
lighting conditions
Installation according to
layout and lighting conditions
ALL DC

ALL DC saves energy throughout the year
z
By making all the motors DC, electricity loss is decreased and Input Power is
substantially reduced. In addition, fan motor high speed rotation is increased and
annual Input Power amount is saved by increasing the airow.

- (01-05) -
GENERAL INFORMATION GENERAL INFORMATION
CONTROL SYSTEM1-5.
1-REMOTE CONTROLLER CONTROL

This is the most basic system. Wired type or wireless type remote controller can be selected.
Simultaneous multi system
z
Refrigerant pipe
Indoor unit 0
(Primary)
Indoor unit 1
(Secondary)
Indoor unit 2
(Secondary)
Indoor unit 1
(Secondary)
Indoor unit 2
(Secondary)
Wired R.C.
Bus wire
Indoor unit 0
(Primary)
Refrigerant pipe
Wireless R.C.
Transmission/
Power supply cable
Power supply cable
Remote controller cable
* When using a wireless type remote controller, install IR Receiver unit to the indoor units.
(Slim duct type, Duct type)
* In simultaneous multi connection, the timer and 10°C HEAT functions by using the wireless remote controller cannot
be used.

- (01-06) -
GENERAL INFORMATION GENERAL INFORMATION
2-REMOTE CONTROLLERS CONTROL

Control locally and from a remote point is possible using 2-remote controllers.
Simultaneous multi system
z
Refrigerant pipeRefrigerant pipe
(Primary) (Primary)
(Secondary)
Wired R.C. Wired R.C. Wired R.C. Wireless R.C.
Bus wire
Transmission/
Power supply cable
Power supply cable
Remote controller cable
Indoor unit 0
(Primary)
Indoor unit 1
(Secondary)
Indoor unit 2
(Secondary)
Indoor unit 0
(Primary)
Indoor unit 1
(Secondary)
Indoor unit 2
(Secondary)
* For 2 wired-type remote controllers, specify a primary and a secondary remote controller.
* The timer and 10°C HEAT (Wireless R.C. only) functions of the remote controller specied as the secondary cannot be used.
* In simultaneous multi connection, the timer and 10°C HEAT functions by using the wireless remote controller cannot
be used.
* When using a wireless type remote controller, install IR Receiver unit to the indoor units.
(Slim duct type, Duct type)