Installation and operating instructions Wilo-Star STG 27
German
• Direction arrows on the pump housing and the thermal insulation
shell (accessories) indicate the direction of flow (Fig. 3, item 1).
• Use a open-end wrench to prevent the pump from twisting (Fig.
4).
• The motor housing can be twisted after undoing the motor
attachment screws if it is necessary to position the terminal box
(Fig. 5).
Note: Generally, turn the motor head before the system is filled.
When turning the motor head in an installation which is already
filled, do not pull the motor head out of the pump housing. Turn
the motor head with a small amount of pressure on the motor
unit so that no water can come out of the pump.
CAUTION! Danger of damage to property!
The gasket may be damaged when the motor housing is
turned. Replace defective gaskets immediately:
Ø 86 x Ø 76 x 2.0 mm EP.
7.2 Electrical connection
DANGER! Risk of fatal injury!
A fatal shock may occur if the electrical connection is not
made correctly.
• Only allow the electrical connection to be made by an electri-
cian approved by the local power supply company and in
accordance with the local regulations in force.
• Disconnect the power supply before any work.
• The current type and voltage must correspond to the details on
the rating plate.
• The electrical connection must be made in accordance with
VDE 0700/part 1 via a fixed connection cable. The latter is pro-
vided with a plug device or an all-pole switch with a contact
opening width of at least 3 mm.
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