40
53
DRAIN POINT
Refer to Figures 19, 24 & 52
a)
Ensure supply voltage is isolated.
b)
Lower the controls front panel and lower the control fascia panel.
c)
Unplug the electrical leads from the PCB. Refer to section 7.
d)
Unplug the BCC if fitted.
e)
Remove the PCB plastic cover.
f)
Unclip the PCB and withdraw.
g)
Carefully remove the three control knobs, noting their position
and fit onto new PCB.
h)
Fit the new PCB and plug in the BCC if previously used.
i)
Re-assemble in reverse order, ensuring control knobs are free to
move and reset button operates.
j)
Turn ON the electrical supply and set the ON/OFF switch to ON,
if the Reset LED, (Refer to section 8.3), shows steady red proceed as
follows:
a)
Press the
Reset
button. The
Reset
LED and LED 1 should flash once.
b)
Wait approximately 5 seconds, while the control is re-
programmed and then press the
Reset
button, to initialise the control.
9.21
CONTROL PCB
a)
Ensure supply voltage is isolated.
b)
Lower the controls front panel and lower the control fascia panel.
c)
Unplug the electrical leads from the PCB. Refer to section 7.
d)
Unplug the four electrical leads from the back of the clock.
e)
Remove the four retaining screws and withdraw the clock from
the control panel.
f)
Fit the new clock and re-assemble in reverse order.
9.22
TIME CLOCK (CBX APPLIANCES ONLY)
FLOW REGULATOR AND DHW
FILTER (CBX APPLIANCES ONLY)
9.23
DHW FLOW TURBINE, DHW
Refer to Figure 28
a)
Ensure supply voltage is isolated.
b)
Remove the electrical lead to the DHW flow turbine.
a)
Close the DHW inlet isolating cock, open a DHW tap at the lowest
point in the system and allow the pressure to dissipate. Close this tap again.
c)
Undo the nut connecting the DHW flow turbine to the DHW inlet
isolating cock.
d)
Undo the nut connecting the DHW flow turbine to the water feed pipe,
and remove the DHW flow turbine, (containing the DHW Flow Regulator).
e)
The DHW filter is located inside the flow cock. To remove it, first remove
the top hat washer and then prise the filter out with a pointed tool.
e)
The assembly can now be flushed clean using water, and parts replaced
as necessary.
g)
Re-assemble in reverse order, using a new fibre washer; ensure that all
joints and seals are correctly re-fitted.
f)
Open the DHW inlet isolating cock and vent air from the system by
opening each hot water tap in the house in turn.
There may be some slight water spillage; so electrical
components should be protected.
Refer to Figures 43 & 53
a) Before draining, give the appliance a brief CH demand, to
ensure the diverter valve is in the CH position.
b) Ensure supply voltage is isolated.
c) If not draining the entire CH system, close the CH flow, CH
return water isolating cocks.
d) Close the DHW return water-isolating cock, (where fitted).
e) Drain down the system from the external drain point, and
drain the appliance using the drain tap on the CH flow water
isolating cock, in conjunction with the manual air vent located on
the LHS of the heat exchanger; refer to Figures 43 and 53.
f) Where the DHW circuit is to be worked on, close the DHW
inlet isolating cock, open a DHW tap at the lowest point in the
system and allow the pressure to dissipate. Close this tap again.
Note: the pressure relief valve should not be used to
drain the system.
9.24
DRAINING THE APPLIANCE
the manual air vent. Re-pressurise the system as necessary and
check for water leaks.
52
PCB HOUSING
NG/Propane
chip card
Electrical
Connectors
Securing
Screws
•
•
Содержание Eden CBX
Страница 13: ...4b Domestic Hot Water Mode CBX 4c Central Heating Mode SBX 11...
Страница 28: ...26 24 CBX SBX...
Страница 31: ...INTERNAL WIRING DIAGRAMS 7 7 1 FUNCTIONAL FLOW WIRING DIAGRAM 29 29...
Страница 44: ...42 54 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24...
Страница 45: ......
Страница 46: ......
