710.1759.01.01-00D
19/09/2018
14
6.3 SHUTTING DOWN THE WATER COOLER
6.3.1 SWITCHING ON/OFF IN DAILY OPERATION
MODEL: CHA 1.3 to CHA 129 (Controller Type “A”, “D”, see 6.2)
Via stand-by mode
1)
Stop the water cooler keeping the
key pressed (for 10 seconds) of controller type “A” or by
pressing the
button of controller type “D”.
2)
Move the main switch of the water cooler to position “0”
Via main switch
Move the main switch to position “0”. The system then switches off immediately. This procedure
should only be used in an emergency.
To avoid damage to the components, you should avoid operating the water cooler without
cooling medium at all costs, even for a short period of time! Neither may it be operated when
the liquid level displayed by the level indicator in the tank falls below the minimum limit.
Otherwise the operating cycle of the circulation pumps will stop!
If the display shows lower or higher temperatures than the standard values during operation, switch off
the water cooler immediately. Check the operating conditions before you contact the supplier or
manufacturer.
6.3.2 TEMPORARY DECOMMISSIONING
All operations must be carried out by qualified personnel only!
Follow this procedure if you need to shut down the water cooler:
•
Stop the water cooler and permanently isolate it from the electricity mains.
•
Once you have properly isolated the water cooler from the mains, you can disconnect the power
cable.
•
Open the bypass valves (if present) for the cooling medium circuit and isolate the water cooler from
the circuit by closing the stop valves for the feed and return lines at the inlet and outlet as
necessary.
•
Disconnect the machine from the cooling medium lines.
•
Empty the tank and the internal cooling medium circuits
6.3.3 DECOMMISSIONING FOR THE PURPOSE OF TRANSPORT
All operations must be carried out by qualified personnel only!
Follow this procedure if you need to shut down the water cooler:
Stop the water cooler and permanently disconnect it from the electricity mains.
•
Once you have properly isolated the water cooler from the mains, you can disconnect the power cable.
•
Open the bypass valves (if present) for the cooling medium circuit and isolate the water cooler from
the circuit by closing the stop valves for the feed and return lines at the inlet and outlet as necessary.
•
Disconnect the machine from the cooling medium lines.
•
Empty the tank and the internal cooling medium circuits.
•
If the water cooler has to be dispatched, use the original or a similar packaging and keep the water
cooler in an upright position.
•
Remove the residual cooling medium from the water cooler, taking due account of its characteristics
and in compliance with the relevant legislation in force.
Before dismantling any electrical components, make sure that the water cooler is isolated
from the electricity mains and affix a warning sign to prevent the water cooler being
accidentally reconnected to the mains!.
To ensure that the water cooler operates properly and is suitably located, adhere to the safety
precautions described in the relevant sections.
7
MAINTENANCE
7.1 MAINTENANCE
All maintenance interventions must be carried out by qualified personnel.
Isolate the water cooler from the mains before carrying out his operation.
