Hitachi FSG1 Series Technical Catalogue page 5

IMPORTANT NOTICE
n HITACHI pursues a policy of continuing improvement in
design and performance of products. The right is
therefore reserved to vary specifications without notice.
n HITACHI cannot anticipate every possible circumstance
that might involve a potential hazard.
n These heat pump air conditioners are designed for
standard air conditioning only. Do not use these heat
pump air conditioners for other purposes such as drying
clothes, refrigerating foods or for any other cooling or
heating process.
n No part of this catalog may be reproduced without written
permission.
n Signal words (DANGER, WARNING and CAUTION) are
used to identify levels of hazard seriousness. Definitions
for identifying hazard levels are provided below with their
respective signal words.
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DANGER:
Immediate hazards which WILL result in severe
personal injury or death.
&
CAUTION:
Hazards or unsafe practices which COULD result in
severe personal injury or death.
$
WARNING:
Hazards or unsafe practices which COULD result in
minor personal injury or product or property damage.
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NOTE:
Useful information for operation and/or maintenance.
It is assumed that these heat pump air conditioners will be
operated and serviced by English speaking people. If this is
not the case, the customer should add safety, caution and
operating signs in the native language.
If you have any questions, contact your distributor or dealer
of HITACHI.
This manual gives a common description and information for
this heat pump air conditioner which you operate as well as
for other models.
These heat pump air conditioners have been designed for
the following temperatures. Operate the heat pump air
conditioner within this range.
Temperature Range (°C):
Cooling Indoor 30 DB / 25 WB
Operation
Outdoor
Heating Indoor
Operation
outdoor
*1): 10DB ~ -5DB (Operation Control Range)
*2): -10WB ~ -15WB (Operation Control Range)
DB: Dry Bulb, WB: Wet Bulb
Maximum Minimum
21.5 DB / 15 WB
43 DB -5 DB *1)
27 DB 15 DB
15 WB -15 WB *2)
IMPORTANT NOTICE
SAFETY SUMMARY
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DANGER:
– Use refrigerant R407C in the refrigerant cycle. Do not
charge oxygen, acetylene or other flammable and
poisonous gases into the refrigerant cycle when
performing a leakage test or an air-tight test. These
types of gases are extremely dangerous and can
cause an explosion. It is recommended that
compressed air, nitrogen or refrigerant be used for
these types of tests.
– Do not pour water into the indoor unit, outdoor unit or
CH unit. These products are equipped with electrical
parts. If poured, it will cause a serious electrical shock.
– Do not touch or adjust safety devices inside the indoor
or outdoor units. If these devices are touched or
readjusted, it may cause a serious accident.
– Do not open the service cover or access panel for the
indoor or outdoor units without turning OFF the main
power supply.
– Refrigerant leakage can cause difficulty with breathing
due to insufficient air. Turn OFF the main switch, put
out fire at once and contact your service contractor, if
refrigerant leakage occurs.
– The installer and system specialist shall secure safety
against leakage according to local regulations or
standards.
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WARNING:
– Do not use any sprays such as insecticide, lacquer,
hair spray or other flammable gases within
approximately one (1) meter from the system.
– If circuit breaker or fuse is often activated, stop the
system and contact your service contractor.
– Do not perform installation work, refrigerant piping
work, drain piping and electrical wiring connection
without referring to our installation manual.
– Check that the ground wire is securely connected.
Connect a fuse of specified capacity. Do not put any
foreign material on the unit or inside the unit. Make
sure that the outdoor unit is not covered with snow or
ice, before operation.
&
CAUTION:
– Do not install the indoor unit, outdoor unit, CH unit,
remote control switch and cable within approximately 3
meters from strong electromagnetic wave radiators
such as medical equipment.
– Supply electrical power to the system to energize the
oil heater for 12 hours before start-up after a long
shutdown.
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NOTE:
– It is recommended that the room be ventilated every 3
to 4 hours.
– The heating capacity of the heat pump unit declines
according to the outdoor air temperature. Therefore, it
is recommended that auxiliary heating equipment be
used in the field when the unit is installed in a low
temperature region.
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