IDEAL istor HE260, Установка и обслуживание, Страница: 64 / 80

64
istor system store -
Installation and Servicing
SERVICING
95 IMMERSION HEATER REPLACEMENT
31. Undo the M5 screw and remove the flow
pipe securing bracket.
32. Remove the flow pipe and transfer to the
new heat engine.
33. Reassemble in reverse order, replacing
gaskets or seals if any sign of damage
or deterioration is evident.
Note.
The heat engine is supplied with new
combustion chamber insulation boards.
These should be fitted (refer to Frame 71)
before the burner and fan / venturi assembly
and before the ignition and detection
electrodes are replaced.
34. Check operation of the boiler. Refer to
Frame 49.
94 HEAT ENGINE REPLACEMENT - continued
ist9880
5
6
2
7
Note.
The replacement immersion heater
must be fitted with a thermal cut out.
1. Refer to Frame 53 & 54.
2. Remove the DHW expansion vessel.
Refer to Frame 56.
3. Drain the cylinder. Refer to Frame 86.
4. Drain the boiler. Refer to Frame 85.
5. Undo the top connection on the
pump and swing the pipe out of the
way.
6. Undo the rear connection on the
divertor valve and swing the pipe out
of the way.
7. The immersion heater can now be
removed and replaced through the
access hole in the boiler module
bottom panel.
8. Reassemble the appliance in
reverse order.
9. Check operation of the boiler. Refer
to Frame 49.
Note that module removal is
NOT necessary. Image is
shown removed only for clarity.
SER
VICING