Connecting The Control Medium; Commissioning; Operation; Control Function 1 - Gemü R690 Betriebsanleitung

Control function Control medium
connector 2 (open)
1 (NC)
2 (NO)
3 (DA)
+ = available
– = not available

11.2 Connecting the control medium

The product has 2 control medium connectors.
1. Use suitable connectors.
2. Connect the control medium lines tension-free and
without any bends or knots.

12 Commissioning

Corrosive chemicals!
▶ Risk of caustic burns
Wear appropriate protective gear.
●
Completely drain the plant.
●
Leakage!
▶ Emission of dangerous materials
Provide for precautionary measures
●
against exceeding the maximum per-
missible pressure that may be caused
by pressure surges (water hammer).
Use as an end-of-line valve!
▶ Damage to the GEMÜ product
When using the GEMÜ product as an
●
end-of-line valve, a mating flange must
be fitted.
Cleaning agent!
▶ Damage to the GEMÜ product
The plant operator is responsible for selecting the clean-
●
ing material and performing the procedure.
1. Check the tightness and the function of the product (close
and reopen the product).
2. Flush the piping system of new plant and following repair
work (the product must be fully open).
ð Harmful foreign matter has been removed.
ð The product is ready for use.
3. Commission the product.
4. Commissioning of actuators in accordance with the en-
closed instructions.
www.gemu-group.com
Control medium
connector 4 (close)
+ -
– +
+ +
WARNING
CAUTION
CAUTION
CAUTION

13 Operation

Operate the product according to the control function (see
also chapter "Pneumatic connections").

13.1 Control function 1

In its resting position, the product is closed by spring force.
1. Activate the actuator via control medium connector 2.
ð The product opens.
2. Vent the actuator via control medium connector 2.
ð The product closes.

13.2 Control function 2

In its resting position the product is opened by spring force.
1. Activate the actuator via control medium connector 4.
ð The product closes.
2. Vent the actuator via control medium connector 4.
ð The product opens.

13.3 Control function 3

In its resting position the product has no defined normal posi-
tion.
1. Activate the actuator via control medium connector 2.
ð The product opens.
2. Activate the actuator via control medium connector 4.
ð The product closes.
65 / 76
13 Operation
GEMÜ R690