Beco BA309С Bedienungsanleitung Seite 16

2 Warnings (for using R290 refrigerant only)
7. Repairs to sealed components
1) During repairs to sealed components, all electrical supplies shall
be disconnected from the equipment being worked upon prior to
any removal of sealed covers, etc. If it is absolutely necessary to
have an electrical supply to equipment during servicing, then a
permanently operating form of leak detection shall be located at
the most critical point to warn of a potentially hazardous situation.
2) Particular attention shall be paid to the following to ensure that
by working on electrical components, the casing is not altered
in such a way that the level of protection is affected. This shall
include damage to cables, excessive number of connections,
terminals not made to original specification, damage to seals,
incorrect fitting of glands, etc.
Ensure that apparatus is mounted securely.
Ensure that seals or sealing materials have not degraded such
that they no longer serve the purpose of preventing the ingress
of flammable atmospheres. Replacement parts shall be in
accordance with the manufacturer's specifications.
Note:
The use of silicon sealant may inhibit the effectiveness of
C
some types of leak detection equipment. Intrinsically safe
components do not have to be isolated prior to working
on them.
16 / 276 EN
Local air conditioner / Instruction Manual