OPERATION
Series 620
14/26
Edition 2020-01-08
1003735EB.DOCX
5
Operation
NOTICE
Damage during heat up ramp and cool down
If valve is closed and fan not running then valve may get damaged.
Make sure that valve is in open position and fan running.
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
WARNING
Electric shock
Electrical shock may get result in death or serious injury.
Operation is allowed only if all protective covers of heating device are closed and no
parts under voltage could be reached.
CAUTION
Valve opening
Risk of injury.
Do not operating before the valve is installed complete into system.
CAUTION
Hot valve
Heated valve may result in minor or moderate injury.
Do not touch valve and heating device during operation. Once heating is switched off
(valve and system) await until the valve is cooled down complete (<25°C) before doing
any work.
NOTICE
Overheating
Do not cover the ventilation grid.
If ventilation grid is covered the valve motor may be damaged.
For «Operation of valve» refer to «External Controller manual»
If you need any further information, please contact one of our service centers. You will find the
addresses on our website www.vatvalve.com.
