Electrical Installation; Connection Of The Floating Contacts - Witt MG 50-2ME Instruction Manual


Note!
It is sensible to install a vent pipe with a shut-off valve after or at the gas receiver so that in-
correctly mixed gas can be blown off on initial commissioning, on changes to the gas mix-
ture and during servicing and repairs, without the need for the gas to flow over the normal
point of use.
It also necessary to ensure that the gas is piped off safely here (e.g. above the roof). The
vent pipe is to be appropriately sized!
5.5

Electrical installation


Establish the connection to the mains using the plug.

The installation of the electrical connections as per the electrical circuit diagram must be per-
formed in accordance with VDE 0100.
Observe following instructions:

Note!
The usage of cables that are not approved can result in irreparable damage to the cables in
the case of heavy mechanical loading. In the case of cables that are not twisted or screened,
signal processing may be imprecise.

Note!
Protect the cables from mechanical loads (e.g. using a suitable cable duct). Excessive me-
chanical loading can result in irreparable damage to the cable.

Note!
It is imperative that the supply voltage in the technical data is provided.

Note!
Do not yet switch on the power supply.
5.5.1

Connection of the floating contacts

AC voltages up to 250 V, 2 A and DC voltages up to 24 V, 2 A can be connected to the alarm relay
connections. X1:4 is the centre contact for the relay contacts. If there is no alarm, the centre con-
PvDu
tact is connected to X1:5. In the case of an alarm the centre contact is switched to X1:6.
GB
WITT-GASETECHNIK GmbH & Co KG
Gas Safety- & Control Equipment
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