Important Notice - Hitachi SET FREE SIDE FLOW Serie Bedienungsanleitung

IMPORTANT NOTICE

3 IMPORTANT NOTICE
• The supplementary information about the purchased products is
supplied in a CD-ROM, which can be found bundled with the outdoor
unit. In case that the CD-ROM is missing or it is not readable, please
contact your Hitachi dealer or distributor.
• PLEASE READ THE MANUAL AND THE FILES ON THE CD-ROM
CAREFULLY BEFORE STARTING WORK ON THE INSTALLATION
OF THE AIR CONDITIONING SYSTEM. Failure to observe the
instructions for installation, use and operation described in this
documentation may result in operating failure including potentially
serious faults, or even the destruction of the air conditioning system.
• Verify, in accordance with the manuals which appear in the outdoor
and indoor units, that all the information required for the correct
installation of the system is included. If this is not the case, contact
your distributor.
• HITACHI pursues a policy of continuing improvement in design and
performance of products. The right is therefore reserved to vary
specifications without notice.
• HITACHI cannot anticipate every possible circumstance that might
involve a potential hazard.
• This air conditioner has been designed for standard air conditioning
for human beings only. Do not use this for other purposes such as for
drying clothes, refrigerating foods or for any other cooling o heating
process.
• No part of this manual may be reproduced without written permission.
• If you have any questions, contact your service contractor of HITACHI.
• Check and make sure that the explanations of each part of this
manual correspond to your air conditioner model.
• Refer to the models codification (page 1) to confirm the main
characteristics of your system.
• Signal words (NOTE, DANGER and CAUTION) are used to identify
levels of hazard seriousness. Definitions for identifying hazard levels
are provided in previous pages.
Start-up and Operation: Check to ensure that all the stop valves are fully opened and no obstacle exists at the inlet/outlet sides
before start-up and during the operation.
Maintenance: Periodically check the high pressure side pressure. If the pressure is higher than the maximum allowable pressure,
stop the system and clean the heat exchanger or remove the cause.
Maximum Allowable Pressure and High Pressure Cut-out Value:
Refrigerant
R410A
?
N O T E
The label for the vessel under PED are attached on the high pressure
vessel. The pressure vessel capacity and vessel category are indicated
on the vessel.
Location of High Pressure Switch
Accumulator
!
D A N G E R
• Do not change the high-pressure switch locally or change the high pressure cut-out set value locally. If changed, it will cause serious
injury or death due to explosion.
• Do not attempt to turn service valve rod beyond its stop.
3 PMML0390B REV.0 - 11/2015 - P5416649
Maximun Allowable Pressure (MPa)
4.15
Compressor
• The operation modes are controlled by the remote control switch.
• This manual should be considered as a permanent part of the air
conditioner. This manual gives a common description and information
for this air conditioner which you operate as well as for other models.
!
D A N G E R
• Pressure Vessel and Safety Device: This air conditioner is
equipped with a high pressure vessel under PED (Pressure
Equipment Directive).
• The pressure vessel has been designed and tested before
shipment according to PED. Also, in order to prevent the
system from an abnormal pressure, a high pressure switch,
which needs no field adjustment, is utilized in the refrigeration
system.
• Therefore, this air conditioner is protected from abnormal
pressures. However, if abnormally high pressure is applied to
the refrigeration cycle including the high pressure vessel(s),
it will result in serious injury or death due to explosion of the
pressure vessel.
• Do not apply a pressure higher than the following pressure
to the system, by modifying or changing the high pressure
switch.
!
C A U T I O N
This unit is designed for commercial and light industrial application.
If installed in house hold appliance, it could cause electromagnetic
interference.
High Pressure Switch Cut-out Value (MPa)
4.00 ~ 4.10
?
N O T E
The high pressure switch is indicated on the electrical wiring diagram in
the outdoor unit as PSH connected to printed circuit board (PCB1) in the
outdoor unit
Structure of High Pressure Switch
Contact point
Connected to the electrical wire
Pressure detected