Dettson AMT100B34-IM2, Руководство по установке

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PART 3 MAINTENANCE
This furnace should never be operated without an air filter.
Disposable filters should be replaced at least once a year. If
equipped to provide cooling, filters should be replaced a minimum of
twice a year.
To avoid personal injury, make sure the power is “OFF” before
servicing.
ALWAYS KEEP THE OIL VALVE CLOSED IF THE BURNER IS
SHUT DOWN FOR AN EXTENDED PERIOD OF TIME.
WARNING
Be sure to turn all power “OFF” upstream from
the unit when servicing the furnace, unless power
is required for specific operations. Failure to
comply with this CAUTION can result in bodily
harm and/or cause a fire hazard.
For optimum performance, the oil burner nozzle should be replaced
at least once a year.
The procedure for the installation and/or replacement of a nozzle is
outlined in the oil burner instruction manual which is supplied with
the furnace.
After replacing the nozzle, the burner should be adjusted in
accordance with the “COMBUSTION CHECK” section of this
manual.
3.1) HEAT EXCHANGER CLEANING
Normally, it is not necessary to clean the heat exchanger or flue pipe
every year, but it is advisable to have a qualified service technician
check the unit before each heating season to determine whether
cleaning or replacement of parts is required.
If cleaning is necessary, the following steps should be followed:
1. Turn “OFF” all power upstream from the furnace ;
2. Disconnect the flue pipe and breach plate. On sealed
combustion systems do not disconnect the flue pipe, remove
the breach plate only;
3. Remove the radiator baffle;
4. Disconnect the oil line and remove the oil burner from the
furnace;
5. Clean the secondary tubes and the primary cylinder with a stiff
brush and remove debris with a vacuum cleaner;
6. Before reassembling the furnace, the heat exchanger and
combustion chamber should be inspected to determine if
replacement is required;
7. After cleaning, replace the radiator baffle, flue collar plate and
oil burner;
8. Readjust burner for proper operation.
3.2) BLOWER REMOVAL
To remove the blower from the furnace:
1. Turn “OFF” all power upstream from the furnace;
2. Remove blower access door;
3. Remove the 4 blower retaining wing-nuts;
4. Slide the blower on the rails toward the rear of the unit;
5. Reverse the above steps to reinstall the blower. (Refer to wiring
diagram Figures 6, 7 and 8 of this instruction manual or the
diagram located on the inside of the blower door to properly
rewire the unit.
3.3) BLOCKED VENT SHUT OFF (BVSO)
CLEANING
For continued safe operation, the Blocked Vent Shut-Off System
(BVSO) needs to be inspected and maintained annually by a
qualified service technician.
1. Disconnect the power to the appliance;
2. Remove the two screws holding down the BVSO assembly
cover;
3. Remove the cover;
4. Remove the two screws holding the control box to the heat
transfer tube assembly. Sliding the control box in the appropriate
direction will unlock it form the heat transfer tube assembly;
5. Carefully remove any build-up from the thermal switch surface;
CAUTION
Do not dent or scratch the surface of the thermal
switch. If the thermal switch is damaged, it must
be replaced.
6. Clear and remove any build-up or obstruction inside the heat
transfer tube;
7. Re-mount, lock and fasten the control box with the 2 screws
removed in step 4;
8. Re-attach the assembly cover with the screws removed in step 2;
9. Re-establish power to the appliance.