System Description; Before Operation - Hitachi FSG Série Manuel D'installation

3. SYSTEM DESCRIPTION

Maximum 32 Indoor Units can be controlled.
Total indoor unit connection capacity can be
50% ~ 130%.
Long piping for high-rise buildings.
Various combinations, 7 types and 49 models of indoor
units type and capacity from 2.2 kW to 14.0kW.
Flexibility of indoor unit control.
High reliability.
Space saving.
Easy installation.
UNIT POWER
Maximum Piping Length Lo-i
Actual Length (m)
Equivalent Length (m)
Maximum piping Length Ho-i
Outdoor Unit is higher than Indoor Unit
Indoor Unit is higher than Outdoor Unit
Maximum piping Lift Hi-i

4. BEFORE OPERATION

CAUTION:
-
Supply electrical power to the system for
approximately 12 hours before start-up or a long
shutdown. Do not start the system immediately after
power supply, it may cause a compressor failure
because the compressor is not heated well.
-
When the system is started after a shutdown longer
that approximately 3 months, it is recommended to
check the system by your service contractor.
5-30 HP
150
175
50
40
15
-
Turn OFF the main switch when the system is to be
stopped for a long period of time: If the main switch is
not turned OFF, electricity will be used, because the
oil heater is always energised during compressor
stopping.
-
Make sure that the outdoor unit is not covered with
snow or ice. If covered, remove it by using hot water
(approximately 50 °C). If the water temperature is
higher that 50 °C, it will cause damage to plastic parts.
SYSTEM DESCRIPTION
3