2
GENERAL INFORMATION
This manual, Code 20124605 - Rev. 2 (10/2017)
comprises 12 pages.
GENERAL INFORMATION
RANGE
MODEL
CODE
RSS MRS
20116166
RSS MR
20116167
Dear heating engineer,
We would like to congratulate you on having recommended a
R
solar station unit: a modern product that's capable of en-
suring a high degree of reliability, efficiency, quality and safety.
While your technical skills and knowledge will certainly be more
than sufficient, this booklet contains all the information that
we have deemed necessary for the device's correct and easy in-
stallation.
Thank you again, and keep up the good work,
Riello S.p.A.
CONTENTS
ENGLISH
1
GENERAL SAFETY INFORMATION
9
Check that the product is complete, undamaged and as or-
dered as soon as you receive it. Report any discrepancies or
damage to the
R
dealer who sold it.
9
This product must be installed by a legally qualified heat-
ing engineer. On completion of the installation, the install-
er must issue the owner with a declaration of conformity
confirming that the installation has been completed to the
highest standards in compliance with the instructions pro-
vided by
R
in this instruction manual, and that it con-
forms to all applicable laws and standards.
9
This product must only be used for the purpose for which it
is designed and made, as specified by
R
.
R
declines
all responsibility, contractual or other, for damage to prop-
erty or injury to persons or animals caused by improper in-
stallation, adjustment, maintenance or use.
9
The product must be serviced at least once a year. Servicing
must be arranged in advance with the
R
Technical Assis-
tance Service.
9
All servicing and repairs must be performed by a qualified
heating engineer.
9
This instruction manual is an integral part of the product. It
must be kept safe and must ALWAYS accompany the product,
even if it is sold to another owner or transferred to another
user or to another installation. If you lose this manual, or-
der a replacement immediately. Keep the product purchase
documents to be presented to the
R
authorised Technical
Assistance Service to request a service call under warranty.
9
Size the solar expansion tank so as to ensure complete ab-
sorption of the expansion of the fluid contained within the
system, with reference to the prevailing regulations on the
matter. In particular, consider fluid characteristics, consid-
erable fluctuation of service temperature and vapour that
might be generated during solar collector stagnation stage.
Proper size of expansion tank ensures setting off of all vol-
ume changes of the heat transfer fluid, avoiding excessive
pressure increase. Limited pressure changes avoid reach-
ing safety valve opening pressure and the consequent fluid
drainage.
General information
The following symbols are used in this manual:
9
CAUTION! =
Identifies actions that require caution and
adequate preparation.
0
STOP! =
Identifies actions that you MUST NOT do.
This manual, Code
- Rev.
comprises
pages.
GENERAL INFORMATION
1
General Safety Information . . . . . . . . . . . . . . . . . . . . . . 2
2 Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3
Description of the appliance . . . . . . . . . . . . . . . . . . . . . 3
4
Safety and control devices. . . . . . . . . . . . . . . . . . . . . . . 3
5
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6
System layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION
7
Technical specifications. . . . . . . . . . . . . . . . . . . . . . . . . 5
8
Unpacking the product . . . . . . . . . . . . . . . . . . . . . . . . . 5
9
Installation premises . . . . . . . . . . . . . . . . . . . . . . . . . . 5
10 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
11
Water connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
12
Typical water system schematics . . . . . . . . . . . . . . . . . . 7
13
Electric connections and wiring diagrams. . . . . . . . . . . 7
COMMISSIONING AND MAINTENANCE
14
System flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
15
System filling cock. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
16
Device cleaning and maintenance . . . . . . . . . . . . . . . .11
17
Interventions on the hydraulic system . . . . . . . . . . . . .11
18
Recycling and disposal . . . . . . . . . . . . . . . . . . . . . . . . .11