Residual Risk - Pfannenberg EB Series Quick Instructions

EN
Safety
The chiller instructions must be read by the installer and personnel in charge for operation, before starting the
chiller.
All safety and security instructions given in this manual must be observed!
Only qualified personnel are allowed to install, operate and do the maintenance work.
Non-observance of the instructions may cause injuries and will cancel the manufacturer's liability for subsequent
damage.
National regulations on accident prevention, regulations of the local power supply authorities as well as any specific
safety instructions for chiller must be observed.
The safety of the unit is only guaranteed, if it is used as intended.
The following points must be observed before commissioning and while operating the chiller:
•
Familiarize yourself with all operating controls.
•
Make sure that all working limits indicated within unit label are observed.
•
Use protective devices to check electrical insulation. Do not carry out any work on any part of the
equipment that are live with wet clothing, hands and feet.
•
Never spill or pour any cooling medium into the environment as this may cause health hazard.
•
The components of the chiller must not be modified in any way.
•
Disconnect the power supply and release pressure from any pressurized component before carrying out
any service work on the Chiller.
•
A qualified commissioning engineer must ensure that the chiller has been connected to the electrical mains
in accordance with the standard EN 60204 and all other applicable national regulations.

3. Residual risk

CAUTION
There are some residual risks after the installation of the unit that must be considered.
Residual risks according to 2006/42/CE Directive:
•
The condenser has fins on his external surface, so there is the possibility for the operator to touch sharp
edges during service of the unit.
•
Although the unit is designed with all the possible safety requirements, in case of external fire there is the
possibility that the internal pressure and temperature of the unit will increase in a dangerous and
uncontrollable way; in that case use the extinguishing tools suitable for that conditions.
•
Safety valve should be maintained according to the maintenance instruction (see chapter Maintenance) to
avoid malfunctions in case of necessity (e.g. in case of external fire the pressure of the refrigerant circuit
could rise to a critical value).
•
For units without emergency switch-disconnector: chiller user must install the emergency switch-
disconnector installation close to the chiller, in an accessible and clearly visible place, to allow emergency
stop of the unit and safety for the operator.
•
Even if in this manual is clearly indicated to switch off the unit before doing any maintenance or control
operation, protection elements of the unit, as fixed panels, are not provided with safety devices that block
the operation of the unit if they are not mounted, in that case the operator could be exposed to contact with
internal rotating parts.
•
In case of damage of fans protection grids, possible risk for the rotating part should be considered by the
utilizer; in this situation the unit should be immediately switched off and repaired.
Pfannenberg GmbH 14 / 60