101
Thermo 230 / 231 / 300 / 301 / 350
1 Introduction
1
Introduction
1.1
Content and purpose
This workshop manual is used during maintenance and
repair of water heaters (further referred to as heaters)
Thermo 230, 231, 300, 301 and 350.
ATTENTION:
Work on the heater may only be performed by briefed
and/or trained by Spheros personnel.
1.2
Effectivity of the workshop manual
The workshop manual applies to heaters listed on the title
page of this document.
It may be subjected to modifications and amendments.
The respectively currently effectife version is binding. This
version can be found on the Spheros homepage under
Service/Downloads/Heating systems.
1.3
Meaning of highlighted content
Throughout this manual the emphasized words Warning!,
Caution!, ATTENTION: and NOTE: used as follows:
This caption is used to indicate possible severe inju-
ries or fatal accidents if instructions or procedures
are carried out incorrectly or entirely disregarded.
This caption is used to indicate possible minor inju-
ries if instructions or procedures are carried out
incorrectly or entirely disregarded.
ATTENTION:
This caption points to actions which may cause ma-
terial damage.
NOTE:
This caption is used to draw attention to an important
feature.
1.4
Symbols
1.5
Further documentation to be used
The use of additional service literature is required.
References are provided in the workshop manual at
appropriate locations.
Use the following documents during operation and main-
tenance of the heaters:
•
Operating and Service Instructions
•
Installation Instructions
•
Technical Information (TI)
•
Spare Parts List
1.6
Safety information and regulations
Basically, general accident pevention provisions and the
valid industrial safety directions must be adhered to.
"General Safety Regulations" which exceed the frame-
work of these provisions are listed below.
The specific safety regulations which affect the present
manual are issued highlighted in the individual sections or
procedures.
1.6.1 General safety regulations
Read the Thermo Operating and Service Instructions
before operating the heater for first time.
Familiarize yourself with the Thermo Installation
Instructions before you make any modifications to the
existing heater installation.
NOTE:
The Thermo Operating and Service Instructions contain
safety instructions and regulations to be followed for safe
operation of the heater.
The Thermo Installation Instructions contain the statutory
regulations and other safety hints and regulations for the
proper installation of the heater.
Danger to life and health!
Warning!
Hazardous to health!
Caution!
Symbol tightening torque value:
Identifies in graphics parts (eg nuts, bolts)
that are to be mounted with a specific tigh-
tening torque. The torque values are shown
at the symbol and are binding.
Danger to life and health!
Warning!
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