Fujitsu ASHG12LMCA User Manual

6. SYSTEM DESIGN
CAUTION

Keep the "piping limitation" for correct operation.
Allowable height difference:

If the height difference between the indoor unit and outdoor unit is larger than the allowable value:
he pressure oss wi be arger  nsucient cooing and heating

he rerigerant in iuid pipe wi ush  erigerant ow noise generate at indoor unit

he rerigerant oi wi not return  nsucient rerigerant oi resuting in copressor daage

If the height difference between indoor unit is larger than the allowable value:
he rerigerant ow baance wi be poor  nsucient cooing and heating poor baance

Refrigerant oil will collect in the piping or non-operating indoor units

 nsucient rerigerant oi resuting in copressor daage
Pipe length:

If the pipe length is longer than prescribed:
he pressure oss wi be arger  nsucient cooing and heating

oo uch rerigerant wi be charged  iuid bacs up resuting in copressor daage

he rerigerant oi wi not return  nsucient rerigerant oi resuting in copressor daage

Pipe size:

If the pipe size is larger than designated size:
he rerigerant ow eocit wi drop. erigerant oi wi not return to the outdoor unit.

 nsucient rerigerant oi resuting in copressor daage
he rerigerant in iuid pipe wi ush easi  nsucient cooing and heating

If the pipe size is smaller than designated size:
he rerigerant circuation oue wi drop  nsucient cooing and heating

he pressure oss wi be arger  nsucient cooing and heating

Indoor unit connected capacity:

If the indoor unit connected capacity is larger than the system capable capacity:
nsucient sste perorance  nsucient cooing and heating

hen heating rerigerant wi coect in nonoperating indoor units resuting in an insucient

rerigerant circuation oue  nsucient cooing and heating
he rerigerant oi wi not return  opressor daage

If the indoor unit connected capacity is too small compared to the system capacity:
he iuid return wi be too great  opressor daage

The refrigerant will concentrate in the operating unit

 ontinuous operation wi becoe dicut due to triggering o the protection in response
to the pressure highrise etc. and noise wi be generated b the rerigerant ow when
heating
- (06 - 14) -
SYSTEM DESIGN SYSTEM DESIGN

Fujitsu ASHG12LMCA Specifications

General

Type	Split system
Timer	Yes
Multi-split	-
Product color	White
Dehumidifying capacity	1.8 l/h
Timer duration (maximum)	24 h
Air conditioner functions	Cooling, Dehumidifying, Heating
Cooling capacity in watts (max)	3900 W
Cooling capacity in watts (min)	900 W
Heating capacity in watts (max)	5300 W
Cooling capacity in watts (nominal)	3400 W
Cooling energy efficiency (EER, W/W)	3.5
Heating energy efficiency (COP, W/W)	3.92
Seasonal efficiency rating (cooling) (SEER)	7
Heating capacity in watts (nominal) (Warmer heating season)	- W
Heating capacity in watts (nominal) (Average heating season)	4000 W
Seasonal efficiency rating (heating) (SCOP) (Average heating season)	4
AC input voltage	230 V
AC input frequency	50 Hz
Design load (cooling)	- kW
Energy efficiency class (cooling)	A++
Power consumption (cooling) (max)	970 W
Power consumption (heating) (max)	1020 W
Annual energy consumption (cooling)	170 kWh
Hourly energy consumption (cooling)	- kWh
Energy efficiency class (heating) (Average heating season)	A+
Annual energy consumption (heating) (Average heating season)	1225 kWh
Indoor unit type	Wall-mountable
Indoor unit depth	203 mm
Indoor unit width	840 mm
Indoor unit height	268 mm
Indoor unit weight	8500 g
Indoor unit noise level (high speed)	43 dB
Outdoor unit depth	293 mm
Outdoor unit width	663 mm
Outdoor unit height	535 mm
Outdoor unit weight	26000 g
Outdoor unit noise level	50 dB
Airflow	750 m³/h