Junkers miniMAXX WR 11-2 B Series, Руководство по установке и эксплуатации

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Maintenance
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7 Maintenance
To ensure that gas consumption and the environmental
load (pollution, etc.) remain as negligible as possible
over a longer period of time, we recommend that you
assure to have the appliance maintained on an annual
basis (inspection) or if necessary (maintenance).
These jobs can only be done by a Junkers Technical
Assistance delegate.
B
Use only authentic spare parts and accessories.
B
Order the spare parts according to the spare parts
catalogue for the heater.
B
Substitute dismantled joints and o-rings with new
ones.
B
Only the following lubricants must be used:
–
On hydraulic parts: Unisilikon L 641 (8 709 918
413)
– Threaded joints: HFt 1 v 5 (8 709 918 010).
7.1 Periodic maintenance tasks
Functional checks
B
Ensure that all safety, regulatory and checking
elements are in good working order.
Heat exchanger
B
Inspect the heat exchanger.
B
If it is dirty:
–
Dismantle the chamber and remove the regulator.
– Clean the chamber with a pressurized water jet.
B
If the dirt resists: soak soiled parts in hot water with
detergent and clean carefully.
B
If necessary: de-scale the interior of the heat
exchanger and connection tubes.
B
Reassemble the heat exchanger using new joints.
B
Remount the regulator on its support.
Burner
B
Inspect the burner annually and clean as necessary.
B
If it is very dirty (grease, soot): Dismantle the burner
and soak it in hot water with detergent and clean it
carefully.
Water filter
B
Replace the water filter installed in the inlet of the
water valve.
Pilot and main burner
B
Remove and clean pilot burner.
B
Remove and clean pilot injector.
7.2 Startup after maintenance work
B
Re-open all connections. Ensure there are no gas
leaks.
B
Read chapter 5 “Use” and chapter 6 “Adjustments”.
7.3 Flue gas safety device
Operation and precautions
The flue gas safety device checks the effectiveness of
flue gas extraction by the flue. If it is inadequate, the
appliance switches off automatically so that the combus-
tion fumes do not escape into the room in which the
appliance has been installed. The flue gas safety device
resets after a cooling-down period.
If the appliance shuts down while in operation:
B
Ventilate the room.
B
10 minutes later, turn on the heater once again.
Call a qualified technician if the same thing happens
again.
Maintenance*
If faults occur on the flue gas safety device, proceed as
follows:
B
Undo flue gas safety device fixing screw.
B
Loosen temperature limiters connectors.
B
Replace damaged component with new one and refit
using the reverse of the procedure set out in the table
above.
Maintenance must only be performed by a
qualified technician.
Warning:
Before performing any maintenance work:
B
Close the water flow valve.
B
Close the gas flow valve.
Warning:
Is forbidden to start up the appliance
without water filter correctly assembled.
Danger:
The flue gas safety device must not under
any circumstances be switched off, simu-
lated or replaced by any other component
Danger:
The user must never make any modifica-
tions to the appliance.