Primary Pcb Replacement - Ideal Heating LOGIC MAX SYSTEM2 S15 Installation & Servicing

3.20 PRIMARY PCB REPLACEMENT

It is critical that the correct boiler size
WARNING:
and fuel type is entered in to the boiler.
CAUTION: Fit the earth strap provided with the PCB
to your wrist and secure to a suitable earth on the
boiler chassis.
Refer to Section
3.2
1. Carefully release the four retaining clips and remove
control box cover.
2. Unplug all lead connections to the PCB.
3. Spring out the four side retaining clips and pull the PCB
upwards to clear the corner retaining posts.
4. Fit the new PCB.
5. Re-connect all plug connections.
6. Reassemble.
7. Turn power on, display shows:
Installer
Initialise spare PCB?
Yes
Press Yes and the following screen is shown:
Select Boiler Brand
Option 1 of 4
Max
Back Next Select
Press Next until 'Max' is shown, then press Select
Select Boiler Name
Option 1 of 4
System 2 UK
Press Next until 'System' UK is shown, then press Select
Select Boiler Model
Option 1 of 6
System UK
15kW
Natural Gas
Back Next Select
Press Next until correct Boiler model shown
1/6 System 15 NG
2/6 System 18 NG
3/6 System 18 Propane
4/6 System 24 NG
5/6 System 30 NG
6/6 System 30 Propane
Press Select to confirm & the following screen is shown:
44
Section 3 - Servicing
Program this model?
System UK
Natural Gas
Back
Press Yes to finish .
FROST STAT
OPTIONAL
ROOM
MAINS IN
STAT/
TIMER L N
1
15kW
Yes
SL2
IN L
SL1 MAINS IN
IN L L N
3
1
Installation and Servicing