The handling of HC R-290
Due to the flammability of R-290 and the risk of fire or explosion during servic-
ing, special safety rules must be followed during operation. In order to avoid
damage for people and property, particular requirements are listed hereafter.
Before servicing the unit, the surrounding area were the work will be done must
be clear of safety hazards to ensure safe working. Nevertheless it is required to
carry out a risk assessment in order to minimise the risk of ignition of R-290.
The following safety measures must be followed:
1. Any employees and other present persons must be informed about the
service and the way the service is done, first.
2. It is recommended to isolate the working environment in order to keep out
any unauthorised personnel.
3. It is useful to set up signs such as “no smoking“ or “access denied“.
4. It is prohibited to store any combustible goods within the working environ-
ment.
5. Within two (2) metres radius, ignition sources are not allowed in the work-
ing area.
6. Fire extinguisher (dry powder) must be easily accessible at any time.
7. During service work, proper ventilation of the environment must be en-
sured.
Sign plate to protect and mark the working area
Appropriate detectors, suitable for hydrocarbons, must be available and opera-
tional all the time. Appropriate tools and appliances must be available and ready
for operation. Any employees need to be instructed extensively about the
safety measures and the possible safety
hazard.
The HC leak de-
tector is indeed
a Personal
Protective
Equipment
(PPE)
device!
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