Fujitsu ABHG18LVTB User Manual

6. SYSTEM DESIGN
PIPE CONNECTION

WARNING
Be sure to perform flare connection. It causes a malfunction and a fire of this unit when connecting 
the pipes other than flare connection (brazing etc.).
(1) Detach the caps and plugs from the pipes.
CAUTION
Be sure to apply the pipe against the port on the unit correctly. If the centering is improper, the flare 
nut cannot be tightened smoothly. If the flare nut is forced to turn, the threads will be damaged.
Do not remove the flare nut from the pipe until immediately before connecting the connection pipe.
Hold the torque wrench at its grip, keeping it in the right angle with the pipe, in order to tighten the 
flare nut correctly.
 entering the pipe against port on the unit turn the are nut with our hand.
Connection
pipe (Gas)
Connection
pipe (Liquid)
To prevent gas leakage, apply the
refrigeration compressor oil (or
equivalent) used for the outdoor unit to
the are surace.
 hen the are nut is tightened proper b our hand use a torue wrench to na tighten it.
Flare nut
[mm (in.)]
Tightening torque
[N·m]
6.35 (1/4) dia. 16 to 18
9.52 (3/8) dia. 32 to 42
12.70 (1/2) dia. 49 to 61
15.88 (5/8) dia. 63 to 75
Do not remove the cap from the connection pipe before connecting the pipe.
CAUTION
Be sure to connect the large pipe after connecting the small pipe completely.
(4) Branch box is marked with engraved letters indicating each corresponding indoor unit (UNIT A,
UNIT B and UNIT C).
UNIT A : Refrigerant pipe connection port for UNIT A
UNIT B : Refrigerant pipe connection port for UNIT B
UNIT C : Refrigerant pipe connection port for UNIT C
UNIT A
(gas pipe)
UNIT A
(liquid pipe)
UNIT B
(liquid pipe)
UNIT B
(gas pipe)
[2 branches type]
UNIT A
(gas pipe)
UNIT A
(liquid pipe)
UNIT B
(liquid pipe)
UNIT C
(liquid pipe)
UNIT B
(gas pipe)
UNIT C
(gas pipe)
[3 branches type]
CAUTION
Label all the refrigerant piping (liquid pipe, gas pipe) specifying to which indoor units they will be 
connected.
Body side
Holding spanner
Torque wrench
- (06 - 36) -
SYSTEM DESIGN SYSTEM DESIGN

Fujitsu ABHG18LVTB Specifications

General

Type	Air conditioner indoor unit
Timer	Yes
Multi-split	-
Product color	White
Gas hose diameter	12.7 mm
Hose length (max)	25 m
Drain hose diameter	25 mm
Liquid hose diameter	6.35 mm
Refrigerating medium	R410A
Dehumidifying capacity	2 l/h
Air conditioner functions	Cooling, Heating
Cooling capacity in watts (max)	5900 W
Cooling capacity in watts (min)	900 W
Heating capacity in watts (max)	7500 W
Cooling capacity in watts (nominal)	5200 W
Cooling energy efficiency (EER, W/W)	3.21
Heating energy efficiency (COP, W/W)	3.61
Operating temperature (cooling) (T-T)	-15 - 46 °C
Operating temperature (heating) (T-T)	-15 - 24 °C
Seasonal efficiency rating (cooling) (SEER)	6.1
Heating capacity in watts (nominal) (Warmer heating season)	- W
Heating capacity in watts (nominal) (Average heating season)	6000 W
Seasonal efficiency rating (heating) (SCOP) (Average heating season)	4
AC input voltage	230 V
Current (cooling)	9 A
Current (heating)	12.5 A
AC input frequency	50 Hz
Design load (cooling)	5.2 kW
Energy efficiency class (cooling)	A++
Annual energy consumption (cooling)	298 kWh
Hourly energy consumption (cooling)	- kWh
Design load (heating) (Warmer heating season)	- kW
Energy efficiency class (heating) (Average heating season)	A+
Annual energy consumption (heating) (Average heating season)	1819 kWh
Indoor unit depth	655 mm
Indoor unit width	990 mm
Indoor unit height	199 mm
Indoor unit weight	27000 g
Indoor units quantity	1
Indoor unit noise level (high speed)	- dB