1  GENERAL INFORMATION
1.1  GENERAL NOTES
No  part  of  this  publication  may  be  reproduced,  copied,  led  or 
transmitted  in  any  shape  or  form  without  the  permission  of 
HITACHI Air Conditioning Products Europe, S.A.U.
Within  the  policy  of  continuous  improvement  of  its  products, 
HITACHI Air Conditioning Products Europe, S.A.U. reserves the 
right to make changes at any time without prior notication and 
without being compelled to introducing them into products subse-
quently sold. This document may therefore have been subject to 
amendments during the life of the product.
HITACHI  makes  every  effort  to  offer  correct,  up-to-date  docu-
mentation.  Despite  this,  printing  errors  cannot  be  controlled  by 
HITACHI and are not its responsibility.
As  a  result,  some  of  the  images  or  data  used  to  illustrate  this 
document may not refer to specic models. No claims will be ac-
cepted based on the data, illustrations and descriptions included 
in this manual.
No type of modication must be made to the equipment without 
prior, written authorisation from the manufacturer.
1.2  PRODUCT GUIDE
1.2.1  Prior check
  NOTE
Check, depending on the name of the model, the type of air con-
ditioning system tted, the abbreviated code and reference in this 
instruction manual. This Installation and Operating Manual refers 
to SET FREE RAS-(8-54)FSXN1E and RAS-(5-36)FSXNH(E) 
outdoor units combined with indoor units from the SYSTEM FREE 
series.
Check, in accordance with the Installation and Operating Manuals 
included with the outdoor and indoor units, that all the information 
necessary for the correct installation of the system is included. If 
this is not the case, please contact your distributor.
1.2.2  Classication of outdoor unit models
Unit type (outdoor unit): RAS
Position-separating hyphen (xed)
Capacity (HP): N series (5-36) 
                         1 series (8-54)
SET FREE System
Refrigerant type 
N: R410A
1: Serie 1 
H: High efciency type
E: Made in Europe
-P: Special type
XXX – XX FSX N X (E) (-P)
All  the  specications  related  to  FSXNH  Series  also  apply  to 
FSXNHE Series
 
 Special models RAS-(16/32)FSXN1E-P and  
RAS-(12/24)FSXNH(E)-P
The  special  models  RAS-(16/32)FSXN1E-P  and  RAS-(12/24)
FSXNH(E)-P are aimed for installations where high performance 
is required.
Specic  data  for  these  units,  like  capacities  and  efciency,  is 
shown in the General Data chapter in the Technical Catalogue, 
and the selection data, like nominal capacity tables and the ca-
pacity  tables  according  to  the  total  power  of  combined  indoor 
units, is available in chapter Capacities and selection data in the 
Technical Catalogue.
The  instructions  for  installation,  piping,  commissioning,  main-
tenance and other works are the same for each pair of models 
shown below.
RAS-16FSXN1E-P   RAS-18FSXN1E
RAS-32FSXN1E-P   RAS-34FSXN1E
RAS-12FSXNH(E)-P   RAS-14FSXNH(E)
RAS-24FSXNH(E)-P   RAS-26FSXNH(E)
Therefore there are no specic instructions shown for these spe-
cial models.
1
PMML0294A rev.2 - 07/2014
General information
PMML0294A_rev.2_02-2014.indb   1 14/07/2014   12:27:58