Pfannenberg DTT 6201 Serie Instrucciones De Servicio página 129

ENG
4.6.7.1 Electrical connection of the cooling unit
The device corresponds to overvoltage category II.
Fulfill the following general requirements to ensure safe and reliable operation of the cooling unit:
• Connection of an upstream temperature control on the feed side is prohibited.
• Connect the upstream fuse specified on the type plate as line protection, see chapter "Type plate", Page 25and
"Adapting the unit to the mains voltage", Page 51.
• Always connecting the cooling unit to the mains via a disconnecting device (switch/contactor).
– The disconnecting device must have a 3 mm contact opening. The disconnecting device is provided and fitted by
the customer.
• Install an all-pole sine filter (phase-phase and phase-earth) when using a frequency converter.
Fig. 25: Cooling unit mains plug
1 Cooling unit
2 Switch cabinet
3 Socket X51
(only on units with MC-Controller)
4 Socket X50
Operating Manual | Roof-mounted Cooling Unit | Multi Controller (MC) – 400 V, 2~ | 086100031c
5 Ground connection
6 Coding pins
7 Plug
8 Screwdriver (flat, max. 3.5 mm)
9
Cable 0.5 to 2.5 mm²
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