COMEM 170SD Manual De Instrucciones página 4

Safety
Safety instructions
Make sure that any person installing and operating the
pressure relief device:
• Is technically qualified and competent.
• Fully complies with these assembling instructions.
Improper operations or misuse could cause danger to:
• life and limb
• the equipment and other assets of the operator
• the equipment proper function
Safety instructions in this manual are shown in three diffe-
rent forms to emphasize important information.
WARNING
This information indicates particular danger to life and health.
Disregarding such a warning can lead to serious or fatal injury.
CAUTION
This information indicates particular danger to equipment and/
or other property of the user. Serious or fatal injury cannot be
excluded.
This notes give important or specific information concerning the
equipment.
Safety notes on the equipment operation
Electrical installation is subject to the relevant national
safety rules.
It is mandatory to connect the grounding cable because of
safety reason.
CAUTION
Installation, electrical connection and fitting the device have to
be carried out by qualified personnel and only in accordance to
this instruction manual.
It is responsibility of the user to make sure that the device is
used for specified application only.
For safety matters, please avoid any unauthorized and
improperly works.
WARNING
All relevant fire protection regulation must be strictly observed.
4
NOTE
PRESSURE RELIEF DEVICES 170SB, 170SC AND 170SD
Product description
The pressure relief device protects the transformer
against non-permissible increases in pressure.
Once a specific predetermined value of pressure has
been reached, the pressure relief device will open, reduce
the pressure, and reseal itself tightly after achieving the
required reduction in pressure.
WARNING
It is important to observe the limit values indicated on the
nameplate and in the manual before commissioning the device.
WARNING
The counter-plate preloads the spring assembly and is secured
with N.4 screws M8. Unscrew these screws is strictly forbidden:
Danger of injury!
The manumission of the screws determined the expiration of
the warranty and operating pressure value will be modified.
Installation
CAUTION
The operating and the installation requirements described in
this manual must be strictly following. If not, the device can be
damaged or a malfunction can occur.
CAUTION
The contact surface must be well leveled with a good degree of
roughness (Ra=3.2).
Remove all welding burrs to ensure that the welding seams of
the studs do not interfere with the housing flange holes (flange
slits).
During assembly it is advisable to apply grease on the gasket,
this securing correct seat and preventing its damaging during
fastening.
Apply tightening torque on all the nuts following a cross
sequence.
The pressure relief device can be installed horizontally or
vertically.
Please be sure to leave sufficient space above the valve
(min. 70mm / 2.75mm) so that the optical signaler can be
completely pressed out of the housing when the device is
tripping.