40 WSAT-XIN 21-171 M0Q940G14-03
9 Maintenance
9.1 General description
Maintenance must be done by authorized centres or by qualied personnel.
The maintenance allows to:
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maintain the unit eciency
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increase the life span of the equipment
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assemble information and data to understand the state of the unit eciency and avoid possible damages
Before checking, please verify the following:
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the electrical power supply line should be isolated at the beginning
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the unit isolator is open, locked and equipped with the suitable warning
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make sure no tension is present
After turning o the power, wait at least 5 minutes before accessing to the electrical panel or any other electrical component.
Before accessing check with a multimeter that there are no residual stresses.
9.2 Inspections frequency
Perform an inspection every 6 months minimum.
The frequency, however, depends on the use.
In the event of frequent use it is recommended to plan inspections at shorter intervals:
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frequent use (continuous or very intermittent use, near the operating limits, etc)
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critical use (service necessary)
9.3 Unit booklet
It’s advisable to create a unit booklet to take notes of the unit interventions.
In this way it will be easier to adequately note the various interventions and aid any troubleshooting.
Report on the booklet:
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date
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type of intervention eected
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intervention description
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carried out measures etc.
9.4 Standby mode
If a long period of inactivity is foreseen:
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turn o the power
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avoid the risk of frost (empty the system or add glycol)
Turn o the power to avoid electrical risks or damages by lightning strikes.
With lower temperatures keep heaters turned on in of the electrical panel (option).
It’s recommended that the re-start after the stopping period is performed by a qualied technician, especially after seasonal stops or seasonal
switching.
When restarting, refer to what is indicated in the “start-up” section.
Schedule technical assistance in advance to avoid hitches and to guarantee that the system can be used when required.