Fujitsu ABHG18LVTB User Manual

6. SYSTEM DESIGN
PIPING DESIGN2.
IMPORTANT ITEMS WHEN USING REFRIGERANT R410A2-1.
R410A operates at higher pressure and has less solubility with mineral oil than
traditional R22 refrigerant. Therefore, the lubricant and a part of pipe material are different.
Some special tools are necessary.
REFRIGERANT PIPING MATERIAL AND WALL THICKNESS

It is necessary to use seamless copper tubes for refrigerant use.
Thickness of tubes are shown in table below.
Endurance pressure of the pipe must be 4.2 MPa.
Nominal Diameter (in) 1/4" 3/8" 1/2" 5/8" 3/4"
Outside Diameter (mm) 6.35 9.52 12.70 15.88 19.05
Material JIS H3300 C1220T-O or equivalent *1
Wall Thickness *2 (mm) 0.8 0.8 0.8 1.0 1.2
 owabe tensie stress   
2
)
*2: Endurance pressure of the pipe must be 4.2 MPa.
Please select the pipe size in accordance with local rules.
LUBRICANT
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Refrigerant R410A (Mixed refrigerant)
Lubricant Synthetic oil
TOOLS
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R410A work requires a number of special tools. Since the tools (marked *4 below) for R22
work cannot be used for R410A, prepare them beforehand.
Tool name Process and application
Pipe cutter Pipe cutting
Refrigerant piping work
Flaring tool *4 Pipe aring wor
Torque wrench *4 Flare nut connection
Expander Expansion at pipe connection
Pipe bender Pipe bending work
Nitrogen gas Pipe interior oxidation prevention
Air tightness test
Welder Pipe brazing
Gauge manifold *4
Vacuum evacuation and refrigerant
charging Operation check
Air tightness test ~
Refrigerant additional charging
Charging hose *4
Vacuum pump (with adaptor) *4 Vacuum drying
Electronic scale for refrigerant charging
Refrigerant additional charging
Gas leak tester *4 Gas leakage test
*4: Please refer to the service manual for details.
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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