0020326637_00 Installation and maintenance instructions
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Before commencing work on the product:
▶
Disconnect the product from the power
supply by switching off all power supplies
at all poles (electrical partition in over-
voltage category III for full partition, e.g.
fuse or circuit breaker).
▶
Secure against being switched back on
again.
▶
Wait for at least 3 minutes until the capa-
citors have discharged.
▶
Check that there is no voltage.
1.3.4 Risk of death caused by fire or
explosion if there is a leak in the
refrigerant circuit
The product contains the combustible refri-
gerant R290. In the event of a leak, escaping
refrigerant may mix with air to form a flam-
mable atmosphere. There is a risk of fire and
explosion.
A protective zone is defined for the area
close around the product. See section
"Protective zone".
▶
If you are working on the product when it
is open, before starting work, use a gas
sniffer to ensure that there is no leak.
▶
The gas sniffer itself must not be an igni-
tion source. The gas sniffer must be calib-
rated to R290 refrigerant and set to
≤
25%
of the lower explosive limit.
▶
Keep all ignition sources away from the
protective zone. In particular, open flames,
hot surfaces with temperatures above
370 °C, electrical devices or tools that are
not free from electrical sources, static dis-
charges.
1.3.5 Risk of death caused by fire
or explosion when removing the
refrigerant
The product contains the combustible refri-
gerant R290. The refrigerant may mix with air
to form a flammable atmosphere. There is a
risk of fire and explosion.
▶
Only carry out the work if you are compet-
ent at handling R290 refrigerant.
▶
Wear suitable personal protective equip-
ment and bring a fire extinguisher with you.
▶
Only use tools and units that are permit-
ted for R290 refrigerant and are in proper
working condition.
▶
Ensure that no air gets into the refrigerant
circuit, into refrigerant-carrying tools or
units, or into the refrigerant cylinder.
▶
Note that the refrigerant R290 must never
be introduced into the sewage system.
1.3.6 Risk of death due to lack of safety
devices
The basic diagrams included in this docu-
ment do not show all safety devices required
for correct installation.
▶
Install the necessary safety devices in the
installation.
▶
Observe the applicable national and inter-
national laws, standards and directives.
1.3.7 Risk of burns, scalds and frostbite
due to hot and cold components
There is a risk of burns and frostbite from
some components, particularly uninsulated
pipelines.
▶
Only carry out work on the components
once these have reached environmental
temperature.
1.4
Regulations (directives, laws,
standards)
▶
Observe the national regulations, stand-
ards, directives, ordinances and laws.