Oil/air cooler
Series OPC
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
43211 EN
15 of 20
5
Please observe protection
note ISO 16016.
Drawn:
2019-10-23 Pz/Str
Replacing:
KTR-N dated 2017-01-02
Verified:
2019-11-04 Pz
Replaced by:
Sizes:
OPC200 to OPC1000
Conditions of operation in
potentially explosive atmospheres
The oil/air coolers are suitable for the use according to EU directive 2014/34/EU.
Industry (with the exception of mining)
•
Equipment group II of category 2 and 3 (oil/air cooler is not approved/not suitable for equipment group 1)
•
Media class G (
gases, mist, vapours
), zone 1 and 2 (oil/air cooler is not approved/not suitable for zone 0)
•
Media class D (dusts), zone 22 (oil/air coolers are not approved/not suitable for zones 20 and 21).
•
Explosion group IIC (
explosion class IIA and IIB are included in IIC
)
Temperature class:
Temperature class
max. perm. medium temperature
T3
≤ +80 °C
(including gases and vapours of temperature classes T2 and T1)
T4
≤ +80 °C
T5
≤ +80 °C
T6
≤ +68 °C
Explanation:
•
The permissible ambient temperature T
a
for the use of oil/air coolers is intended from -20 °C to +55 °C.
•
Subject to the operation the medium temperature may be considerably higher than the ambient temperature.
•
The component with the lowest temperature class is decisive for the operation.
In potentially explosive atmospheres
•
the ignition temperature of dusts generated must at least be 1.5 times the surface temperature to be
considered
•
the glow temperature must at least be the surface temperature to be considered plus a safety distance of 75 K.
•
the gases and vapours generated must amount to the temperature class specified.
8
Enclosure A
Advice and instructions regarding the use in
potentially explosive atmospheres
8.1 Intended use in
potentially explosive atmospheres
