External System Filter Cleaning Guide; Burner Injector Replacement; Burner Replacement; Return Thermistor Replacement - Ideal Heating LOGIC MAX SYSTEM2 S15 Installation & Servicing

3.11 EXTERNAL SYSTEM FILTER CLEANING GUIDE

Switch off the boiler (isolate electrical supply).
1.
2. Close the inlet/outlet valves. Remove magnet and vent.
3. Remove drain valve cap, open drain valve and vent.
Open inlet valve slowly and flush out filter until water
4.
runs clear.
5. Close the inlet valve. Close the drain valve.
6. Reinsert the magnet and replace the drain valve cap.
Open inlet/outlet valves, refill system and vent.
7.
8. Restart the boiler.
CAUTION: Ensure that the magnet pocket is kept
dry.
IMPORTANT: Repressurise the system after cleaning
the filter, as loss of pressure will occur.

3.12 BURNER INJECTOR REPLACEMENT

Refer to Section
3.6

3.14 RETURN THERMISTOR REPLACEMENT

1. Isolate and drain down the boiler.
2. Remove the clip from the pump housing and remove the
thermistor.
3. Disconnect the electrical lead from the thermistor.
4. Reconnect the electrical lead to the new thermistor and
reassemble, ensuring that the thermistor is fully engaged
and the clip is correctly located.
Installation and Servicing
Section 3 - Servicing
2
2
3
Vent
5
2
Close

3.13 BURNER REPLACEMENT

Refer to Section
3.2 & 3.7
3 4
1 3
Close Vent
1 2
Close Open
1
6
7
2
1
Close
1
2
2
1
Open
1
2
Open
Vent
1
Open
SCAN
for video
Refer to Section
3.2
41