System Description; Before Operation - Hitachi RCI Serie Manual De Instalación Y Funcionamiento

3. SYSTEM DESCRIPTION

Maximum 4 Indoor Units can be controlled.
Long piping for high-rise buildings.
Various combinations, 7 types and 34 models of indoor units
type and capacity from 5.0 kW to 25.0kW.
Flexibility of indoor unit control.
High reliability.
Space saving.
Easy installation.
UNIT POWER
Maximum Piping Length Lo-i
Actual Length
Equivalent Length
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.
(m)
RAS-8~12HRNM
100
120
30
20
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SYSTEM DESCRIPTION
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.
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