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50 CONDENSATE TRAP/SIPHON REPLACEMENT
1. Refer to Frame 40.
note: Ensure condensate trap is fully
drained before removal.
2. Pull off the rubber pipe at the sump
drain.
3. Disconnect the condensate drain pipe.
4. Turn the siphon clockwise to disengage
and lift to remove.
5. Reassemble in reverse order.
6. When reassembling ensure the trap is
full of water.
7. Check operation of the boiler. Refer to
Frames 29 & 30.
51 MAin PCb RePlACeMent
* Note. that production boiler PCB's are factory pre-
set to operate for boiler range and output, but when
ordering Primary PCB as a spare, an additional Boiler
Chip Card (BCC) MUST also be purchased for your
specific boiler range and output.
note. Fit the earth strap provided with the PCB to
your wrist and secure to a suitable earth on the boiler
chassis.
1. Refer to Frame 40.
2. Note the control knob positions.
3. Remove the 2 screws retaining the control box
cover.
4. Carefully lift the 4 retaining clips and remove
control box cover.
5. Unplug all lead connections to the PCB including
the ribbon cable (to facilitate ribbon cable removal,
ease side clips apart and pull upwards), also where
applicable, push the small plastic clip with an
electrical screwdriver to facilitate plug removal.
6. Spring out the two side retaining clips and pull the
PCB upwards to clear the 4 corner retaining posts.
7. Take the new Primary PCB and attach the
appropriate Boiler Chip Card (BCC) to it (this
should correspond to the output of the boiler: 24kW,
30kW.
note. Ensure the correct orientation of
BCC by placing "TOP" side up as shown.
8. Re-connect all plug connections.
9. Reassemble in reverse order.
10. a. Turn power on
b. Displays "8" blue light on/off, "first digit input",
"second digit input", "1st letter appliance type",
i.e. "2", "4", "c"
c.
Move knob to required setting (standby,
summer, winter)
note. If no BCC fitted on non programmed board
"C2" will be displayed. The correct BCC for this
appliance will need to be fitted.
11. Check operation of the boiler. Refer to Frames 29 & 30.
44
SERVICING
2
3
5
3
4
5
Ribbon Cable
Connection
i-mini -
Installation and Servicing
6
7
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