Burkert Type 6027 - Manual (Page 5)

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7.4. Connecting the device socket
to the power supply
WARNING!
Risk of injury due to electrical shock!
• Before reaching into the system, switch off the electri-
cal power supply and secure to prevent reactivation!
• Observe applicable accident prevention and safety
regulations for electrical equipment!
If the protective conductor contact between the coil and
housing is missing, there is danger of electrical shock!
• Always connect protective conductor.
• Check electrical continuity between coil and housing.
Seal
max. 1 Nm
Approved device socket,
e.g. type 2508 or similar
Fig. 3: Connecting the device socket to the power supply
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8. MAINTENANCE AND REPAIRS
8.1. Safety instructions
DANGER!
Risk of injury from high pressure in the equipment!
• Before loosening the lines and valves, turn off the
pressure and vent the lines.
Risk of injury due to electrical shock!
• Before reaching into the system , switch off the power
supply and secure to prevent reactivation!
• Observe applicable accident prevention and safety
regulations for electrical equipment!
Risk of injury from improper repair work!
• Maintenance may only be carried out by authorized
technicians with the appropriate tools!
Risk of injury from unintentional activation of the
system and an uncontrolled restart!
• Secure system from unintentional activation.
• Following maintenance, ensure a controlled restart.
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8.2. Installation of coil
WARNING!
Escaping medium!
When a sticking nut is loosened, medium may escape.
• Do not tighten sticking nut any further.
Electric shock!
If the protective conductor contact between the coil and
housing is missing, there is danger of electrical shock!
• During installation insert the plastic ring (optional) into
the housing journal. The plastic ring must not project
over the octagonal nipple.
• Check protective conductor contact after installing the
coil.
Overheating, risk of fire!
Connection of the coil without pre-assembled valve will
result in overheating and destroy the coil.
• Connect the coil with pre-assembled valve only.
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Observe torque!
(See table below)
O-ring
Nut
Plastic ring
(optional)
Fig. 4: Coil installation
The rotational position of the coil on the valve housing is arbitrary.
Wrench size Coil installation torque
SW 14 5 Nm
SW 22 15 Nm
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Type 6027