Safety Information - ENGO CONTROLS EWT100 Operation And Installation Manual

SAFETY INFORMATION

Requirements concerning safety are
listed in particular sections of this instruction.
Apart from them it in necessary to fulfill the
following requirements.
Prior to starting the assembly, repairs or
•
maintenance and during the execution of
any connection works, it is necessary to
switch off the mains supply and make sure
that no terminals no electrical wires are
energized.
After deactivating the controller, terminals
•
of the controller can be under a dangerous
level of voltage.
The controller can be utilized only in
•
accordance with its intended use.
Values of programmed parameters must
•
be set in accordance with a particular
building and hydraulic system.
Controller can be assembled only by
•
qualified installer and in accordance with
currently valid standards and regulations.
• The controller is not an intrinsically safe
device. It means that in case of failure it
can be a source of sparks or high
temperature which surrounded by ashes
or flammable gases can cause fire or
explosion.
Modification of
•
parameters should be made only by a
person who read this manual.
Use only in heat circulation system made
•
in accordance
regulations.
Electrical system including the controller
•
should be protected with fuse selected in
accordance with used loads.
The controller
•
damaged housing.
Never make any modifications in controller
•
structure.
• The controller has electronic disconnection
for connected devices (operation 2.B
according to PN-EN 60730-1).
Before you open casing, first disconnect
•
power supply from the unit.
• The controller
accordance with the requirements of EN
60335-1 standard,
authorized technician.
the programmed
with currently valid
cannot be used
must be installed
by qualified
Short circuit at the outputs leads to
•
damage to the device (not output COM-
NO).
Do not operate the unit when it is
•
malfunctioning
unauthorized persons.
Do not mount the unit on flammable
•
materials.
with
in
and
4
or was repaired by