2
AW HT
GB 05/2009
U I A
User
Installer
Assistance
Important
Prohibition
Danger voltage
Danger high temperatures
INDEX
U I A
The manufacturer reserves the right to modify the data in this manual without warning.
The following symbols are used in this publication and inside the unit:
General warnings
2
Definitions 3
Waiver of liability
3
Fundamental safety rules
3
Receiving and handling the product
4
Description of standard unit
5
Dimensional drawings
6
Water connections
7
Water circuit data
9
Electrical connections
11
Mains power supply connections
12
Installer connections
14
Installer terminal block
14
Electronic controller (A1) terminal block
14
General technical data
21
Checking and starting up the unit
22
Operation of the room temperature control
unit
23
Operation and functions of the room unit
24
using the buttons
Operation and functions of the room unit
24
in programming mode
Control and operating characteristics
27
System configuration
41
Maintenance and service
44
Peak limiter alarm signals
48
System operating status
49
Shutting down for long periods
51
Routine maintenance
51
Special maintenance
52
Disposal 52
Useful information
52
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GENERAL WARNINGS
U I A
These appliances have been designed
to heat water
and must be used in applications compatible with their
performance characteristics; these appliances are
designed for residential or similar applications.
Incorrect installation, regulation and maintenance or
improper use absolve the
manufacturer
from all liability,
whether contractual or otherwise, for damage to people,
animals or things.
Only those applications specifically indicated in this list
are permitted
Read this manual carefully
. All work must be carried
out by qualified personnel in conformity with legislation in
force in the country concerned.
The warranty is void
if the above instructions are not
respected and if the unit is started up for the first time
without the presence of personnel authorised by the
Company (where specified in the supply contract) who
should draw up a “start-up” report.
The documents supplied with the unit
must be con-
signed to the owner who should keep them carefully for
future consultation in the event of maintenance or ser-
vice.
All repair or maintenance work must be carried out by
the Company’s Technical Service or qualified personnel
following the instructions in this manual.
The air-conditioner must under no circumstances be
modified or tampered with as this may create situations
of risk. Failure to observe this condition absolves the
manufacturer of all liability for resulting damage.