Maintenance; Exterior Leak Test; Cleaning The Dirt Trap; Function Test - Reflex Servitec 35 Originalbetriebsanleitung

Maintenance

11 Maintenance
CAUTION
Risk of burns on hot surfaces
Hot surfaces in heating systems can cause burns to the skin.
• Wear protective gloves.
• Please place appropriate warning signs in the vicinity of the device.
CAUTION
Risk of injury due to pressurised liquid
If installation, removal or maintenance work is not carried out correctly, there is a
risk of burns and other injuries at the connection points, if pressurised hot water
or hot steam suddenly escapes.
• Ensure proper installation, removal or maintenance work.
• Ensure that the system is de-pressurised before performing installation,
removal or maintenance work at the connection points.
The 'Servitec' must be serviced annually or after 16,000 degassing intervals,
whichever comes first.

Note!
Shorter maintenance intervals are required if the default setting for
interval degassing of 8 degassing cycles and 12 h idling time exceeds the
following times for continuous degassing.
• Continuous degassing time of about 14 days
Or
• Continuous degassing time of 7 days + 1 year interval degassing
with default setting
The maintenance intervals depend on the operating conditions and the
degassing times.
Do not exceed the maintenance intervals.
Perform servicing, if the intervals have been exceeded.
 Note!
Maintenance/service work must be carried out and acknowledged by
specialist personnel or the Reflex Customer Service.

Note!
The annual maintenance is displayed upon expiry of the set operating
time. • Press "OK" to acknowledge the "Service recommended"
message.
The maintenance schedule is a summary of maintenance tasks to be carried out
regularly.
Maintenance task
▲ = Check, ■ = Service, ● = Clean
Check for leaks,  11.1 "Exterior leak test",
 44.
• "PU" pump
• Screw connections
• "DV" degassing valve
Vacuum function test.
–  8.5 "Vacuum test",  37
Clean the dirt trap.
 11.1.1 "Cleaning the dirt trap",
–
 44
Check the controller settings.

Function test.

• "SE" system degassing
• Make-up degassing "NE"
 11.2 "Function test",  44
When operating with water/glycol mixtures
• Control of the mixing ratio.
• If necessary, adjust according to
manufacturer information.
11.1

Exterior leak test

Check the following Servitec components for leaks:
• Pump
• Screw connections
• Degassing valves
44 — English
Conditions Interval
▲ ■
Annually
▲
Annually
▲ ■ ●
Depending on
the operating
conditions
▲
Annually
▲
Annually
▲
Annually
Vacuum spray degassing — 18.12.2019-Rev. A
Proceed as follows:
• Seal any leaks at the connections or replace the connections, if required.
• Seal leaking screw connections or replace, if required.
11.1.1

Cleaning the dirt trap

CAUTION
Risk of injury due to pressurised liquid
If installation, removal or maintenance work is not carried out correctly, there is a
risk of burns and other injuries at the connection points, if pressurised hot water
or hot steam suddenly escapes.
• Ensure proper installation, removal or maintenance work.
• Ensure that the system is de-pressurised before performing installation,
removal or maintenance work at the connection points.
The "ST" dirt trap in the "DC" degassing line must be cleaned no later than after
the continuous degassing time has elapsed. Check the dirt traps after every
filling action or extended operation.
1 "ST" dirt trap
1. Press "Stop" on the controller's operator panel.
– The Servitec is non-functioning and the "PU" pump is shut down.
2. Close the ball valve upstream of the "ST" (1) dirt trap.
3. Slowly unscrew the cap with the dirt trap insert at the dirt trap to release
any residual pressure in the pipeline section.
4. Pull the mesh from the cap and rinse it with clear water. Use a soft brush
for cleaning.
5. Re-insert the mesh into the cap, check the gasket for damage, and screw
the cap back into the housing of the "ST" (1) dirt trap.
6. Open the ball valve upstream of the "ST" (1) dirt trap.
7. Press "Auto" on the controller's operator panel.
– The Servitec is switched on and the "PU" pump is in operation.
 Note!
Clean all other installed dirt traps (in the Fillset, for example).
11.2 Function test
Check in sequence the degassing of facility water and make-up water.
Proceed as follows:
1. Switch to Manual mode,  9.1.2 "Manual mode",  38.
2. Run 10 cycles for facility water degassing.
– To degas the facility water, touch "Circulate". The "Circulate" function
activates the continuous degassing of facility water.
3. Run 10 cycles for make-up water degassing.
– To degas the make-up water, touch "Fill". The "Fill" function activates
the continuous degassing of make-up water.

Note!
The gas must be eliminated from the device before the next interval
starts.
After the cycles are completed, a saturation pressure is present. With cold water,
the "PI" vacuum gauge must eventually show a value of approx. -1 bar.
4. Press "AUTO" to deactivate Manual mode.
– Automatic mode is activated.
The inspection of the degassing is concluded.