4 | DOC-568_EN REV04
ORIGINAL INSTRUCTIONS
2. GENERAL GUIDELINES & REFERENCE
GROUNDING REQUIREMENTS
This power unit must be grounded. If it should malfunction or breakdown, grounding provides
a path of least resistance for electric current to reduce the risk of electric shock. This power
unit has a power cord of 5.4’ / 1.65 m in length and is equipped with a grounding conductor
and grounding plug. The plug must always be inserted directly into an electrical outlet that is
properly installed and grounded in accordance with all local codes and regulations.
DO NOT USE AN EXTENSION CORD
.
WARNING:
Improper connection of the equipment grounding conductor can
result in a risk of electric shock. Check with a qualifi ed electrician
or service person if you are in doubt as to whether the outlet is
properly grounded. Do not modify the plug provided with the
power unit – if it will not fi t the outlet, have a proper outlet
installed by a qualifi ed electrician.
The unit has a grounding attachment plug. Make sure that the
power unit is connected to an outlet having the same confi guration
as the plug. No adapter should be used with this power unit. The
power unit should be connected to an independent circuit breaker.
ELECTRICAL REQUIREMENTS
The following models are to be used on a nominal circuit of 15 A at 110-120 Volts A.C. and
60 Hz: A10-130-NA-D, A10-260I-NA-ED, SEN-260I-NA-D, STR-190I-NA, SIG-290I-NA, A50-170I-
NA, SYM-150I-NA.
The following model is to be used on a nominal circuit of 15 A at 220-240 Volts A.C. and 60 Hz:
DIS-200-NA-D.
The following models are to be used on a nominal circuit of 10 A at 220-240 Volts A.C. and
50 Hz: A10-260I-EU/CH/UK/SE-ED, SEN-260I-EU/CH/UK/SE-D, STR-190I-EU/CH-UK/SE-D, SYM-
270-EU/CH/UK/SE-D, SIL-280-EU/CH/UK/SE-D.
The following models are to be used on a nominal circuit of 15 A at 220-240 Volts A.C. and
50 Hz: SIG-200-EU/CH/UK/SE-D, DIS-200-EU/CH/UK/SE-D.
NOTE
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Other optional suffi xes can be used, on all models, to denote
cosmetic changes�
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1�
The power unit must be installed in a ventilated area away from any
heat source;
2�
The Duovac central vacuum system must be used only on dry
surfaces. At no time should the system be used to draw up liquids
nor should it be used to vacuum wet carpets or fl oors.
3�
It is mandatory that the fi ltration cage (as applicable) be equipped
with its permanent fi lter at all times when the system is in use;
4�
The motor housing must never be obstructed in any way to avoid
overheating or damaging;
5�
DO NOT vacuum gypsum dust, fl our, mud, or any sludgy materials
as they will cake onto the fi lter and obstruct the fi ltration system
resulting in the overheating of the motor and thus failure of the
power unit to function properly;
6�
Do not attempt to shorten or modify the electrical power cord;
7�
As a security measure, unplug the electrical power cord before
proceeding with any maintenance;
8�
In order for the warranty to be valid, only a Duovac authorized
service personnel may carry out the necessary repairs or
maintenance on the motor;
9�
The warranty will be void if non-recommended products such as
fi lters or any other after-sale parts as carbon brushes and motors
are used to repair the unit. Duovac recommends strongly to use
only Duovac certifi ed fi lters and replacement parts;
10�
Power unit must be so positioned that the plug is always easily
accessible.
11�
Pertaining to a 110V/24V valve (intended for the connection of a
current-carrying hose/motorized nozzle combination):
• Connect only a current-carrying hose to this wall valve;
• Do not install a wall valve outdoors;
• Do not use with a damaged hose. Return hose to a service centre;
IMPORTANT
Duovac is not responsible for damages resulting from improper
use. The warranty does not cover damage resulting from misuse
or problems resulting from installation that does not conform
to specifi cations, or any functional alterations and / or physical
changes to the power unit. Improper or non-recommended
installation of the system and / or power unit done against
predefi ned principles of the user manual is also considered misuse.
All conditions and restrictions are set forth in the Duovac limited
warranty, the user manual and the system installation guide. To
optimize the performance and life of your Duovac power unit, it
is important to do regular maintenance and cleaning of the fi lter
according to the guidelines listed in this user manual.
