Ersa HF3_20 操作说明 - 第573页
6 94160 - englisch_BA 06. 07.2005 ENG LIS H 1.2 Signs and Symbo ls Throug hout t his ope rating manua l, the inform ation and not ices b elow a re iden tified by graphical symbols : Dange r! Safety note pointing out an i…
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94160 - englisch_BA
06.07.2005
ENGLISH
1. FOR YOUR SAFETY
1.1 Regulations
The design, construction and development of the process cooler are in compliance with the
following national and international regulations:
EC Directives / Standards
- EC Machinery Directive 98/37/EEC
- EC Low Voltage Directive 73/23/EEC
- EC EMC Directive 89/336/EEC
- EC Pressure Equipment Directive 97/23/EEC
- EN 378 T1/T2/T3/T4 Refrigeration plants and heat pumps
- EN 60529 Degrees of protection provided by
enclosures (IP)
- EN 292 T1/T2 Safety of machinery
- EN 294 Safety of machinery
- EN 349 Safety of machinery
- EN 60204 Electrical equipment of machinery
- EN 50081-2 Electromagnetic compatibility
generic emission standard
- EN 50082-1/2 Electromagnetic compatibility
generic immunity standard
National Directives
- BGV D4 Accident prevention regulations concerning refrigeration plants
and heat pumps
1. For Your Safety
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94160 - englisch_BA
06.07.2005
ENGLISH
1.2 Signs and Symbols
Throughout this operating manual, the information and notices below are identified by
graphical symbols:
Danger!
Safety note pointing out an imminent danger. Failure to heed the warning may result in
serious bodily injury and even death.
Caution!
Safety note to indicate the presence of a potential hazard. Failure to heed the safety notice
may result in minor bodily injury or damage to the equipment.
Information!
This symbol identifies important information or a useful tip concerning the application of the
equipment.
Listing
This symbol identifies an enumeration or listing.
Graphical symbols
1. For Your Safety
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94160 - englisch_BA
06.07.2005
ENGLISH
1.3 Safety Notices
For the installation, operation and maintenance of the process cooler, the following regulations
and safety notices have to be observed:
Any work on the process cooler may only be performed by qualified personnel.
All relevant accident prevention regulations have to be observed.
Do not allow anybody to stand or pass underneath the forks when lifting and setting
down the process cooler; stay clear of the danger area.
The process cooler must be properly secured in order to prevent it from tipping over.
The safety devices must not be deactivated.
The electrotechnical connections of the process cooler must be performed according
to and conforming with all relevant VDE, EN and IEC standards. Beyond that, the
technical connection requirements of the local electrical utility company have to be
observed.
Do not attempt to perform any work unless the main power supply to the process
cooler has been disconnected.
Specific regional or national provisions applicable in the country where the unit will
be installed must be adhered to.
The closed refrigeration circuit contains refrigerants and refrigeration oil. These must
be properly disposed of when performing service work or placing the unit out of
service (environment).
The cooling water additives have a caustic effect on skin and eyes. When working
with cooling water additives, eye protection devices and gloves must be worn. Follow
the directions on the product’s label.
Anyone working on the refrigeration circuit must be protected by personal protective
equipment.
The process cooler is to be used exclusively for the cooling of water in accordance
with predefined specifications.
Watch out for any incompatibilities of materials in the entire water circuit.
The water must be free of all substances that could result in mineral deposits and
corrosion!
The water used in the cooling circuit must comply, at a minimum, with the values specified by
the Ordinance on Drinking Water. In the case of de-ionised water, additional constructional
features are necessary.
Based on the drinking water ordinance the following limit values are recommended:
- Electric conductivity: < 2500 µS at 20 °C
-Hydrogen concentration: 7 ... 9 (pH-value) at 20 °C
-Chloride: < 250 mg/l
-Total hardness: < 30 °dH
-Colony count: < 100 ml at 22 °C
1. For Your Safety