4 Cleaning
14
99473903xNA – V02
2011/11
4
Cleaning
Risk of burns!
The valves, fittings and the pump may heat up to more than 212 °F (100 °C) during
operation.
¾
The shell must remain closed when cleaning.
Clean the zone module from the outside with a damp cloth only. Never use scouring or sand-containing cleaning agents.
5
Maintenance and decommissioning [Specialist]
Before maintaining and decommissioning the product, you must read and observe the following safety instructions:
Risk of electric shock!
¾
Disconnect all electrical devices in the heating circuit from the power supply before
carrying out maintenance work or decommissioning!
¾
Secure the electrical devices against being switched on again.
Risk of burns and scalding!
¾
Before starting maintenance work or decommissioning, switch off the heat generator.
¾
Wait until the heating water has cooled down to 95 °F (35 °C).
1.
Switch the heat generator off and wait until the
heating water has cooled down.
2.
Disconnect the controller from the power supply.
3.
Connect a hose to the pet cock of the heating
system.
4.
Drain the cooled-down heating water into a
suitable container.
5.
Dismount the zone module.
Now you can carry out the maintenance work or dispose of
the zone module by observing the local requirements.
