Pentair LINEGUARD UF-100 Manual page 12

5 MAINtENANcE
5.1 General inspection
the following parts should be visually yearly checked for malfunctions scaling, rust or any other visible signs
of deterioration.
• Frame
• Magnetic Valves
• Flow Switch
• Pressure Sensors
• Electrical Connection
• Control Unit
5.2 testing and replacing the modules
5.2.1 Integrity testing modules
Execute an yearly integrity test according the procedure Integrity test LineGuard.
5.2.2 timing
the UF modules should be replaced when the system pressure drop becomes too high and the output starts
to decrease. this depends largely on the feed water quality and the amount of water used. the service
interval should be set according to this. when the LineGuard needs maintenance, one of the following text
messages will appear in the display:
Refer to 4.2.2 for changing the service date.
18
EN
5.2.3 Draining the system
Before the modules can be replaced the LineGuard needs to be drained of any water resting in the piping of
the system. this can be done by following the steps below:
1. close the feed water shut-off valve (figure 2, position 1A)
2. close the filtered water shut-off valve (position 3A)
3. slowly open the feed and filtered water drain valve (position 1B and 3B) and carefully release
any pressure left in the system.
5.2.4 Dismounting the used modules
Although the LineGuard has been drained, there will still be some water left inside the modules. Use a
bucket to collect this water.
please follow the steps below to dismount the modules:
1. Loosen and remove the M6 bolt at the top of the module.
2. Remove the locking strip at the top of the module while holding the module to prevent it from
falling out of the system.
3. pull the module out of the valve block and lift the module out of the bracket at the bottom.
4. place the used module in a plastic bag and seal for transport and storage.
5.2.5 Mounting the module(s)
Before mounting the new modules please make sure that you thoroughly disinfect the module connectors
and the valve block openings by spraying them a few times with Norit H2oK sanitizer spray.
please follow the steps below in order to mount the modules in the LineGuard. Before mounting the
modules please make sure that these are the correct versions.
1. take the module out of the sealed bag.
2. Remove the seal caps from the connector and the valve block.
3. place the module into the bottom bracket.
4. press the module with the connectors into the valve block.
5. place the locking strip into place.
6. place and tighten the M6 bolt to prevent the locking strip from unlocking.
19
EN