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4 MAINTENANCE
WARNING
Electrical shock hazard.
Turn OFF power and fuel to the furnace before any disassembly or
servicing.
Failure to do so can result in death, bodily injury and/or property
damage.
Preventive maintenance is the best way to avoid unnecessary
expense and inconvenience. Have your heating system and burner
inspected by a qualified service technician at regular intervals.
To maintain the reliability and optimal performance of the furnace,
have a complete combustion check done after the annual
maintenance call. Do not attempt to repair the furnace or its controls.
Call a qualified service technician.
Before calling for repair service check the following points:
1.
Check the oil tank gauge and make sure that the valve is open;
2.
Check fuses and the circuit breaker;
3.
Check if the main disconnect switch is ON ;
4.
Set the thermostat above room temperature;
5.
If ignition does not occur, turn off the disconnect switch and call a
qualified service technician.
When ordering replacement parts, please specify the complete
furnace model number and serial number.
4.1
CLEANING THE HEAT
EXCHANGER
It is not generally necessary to clean the heat exchanger or
flue pipe every year, but it is advisable to have the oil burner
service technician check the unit before each heating season
to determine whether the cleaning or replacement of parts is
necessary.
If a cleaning is necessary, the following steps should be
performed:
1.
Turn OFF all utilities upstream from the furnace;
2.
Disconnect the flue pipe;
3.
Remove the flue collar panel located at the rear of the
furnace;
4.
Remove the clean-out door located at the front of the
furnace;
5.
Remove the heat exchanger baffles;
6.
Disconnect the oil line and remove the oil burner;
7.
Clean the secondary tubes and the primary cylinder with
a stiff brush and a vacuum cleaner;
8.
Before re-assembling the unit, the heat exchanger and
combustion chamber should be inspected to determine if
replacement is required;
9.
After the cleaning replace the heat exchanger baffles, flue
collar plate and oil burner;
10. Readjust the burner for proper operation.
4.2
For continuous safe operation, the Blocked Vent Shut-off
device (BVSO) must be inspected and maintained annually
by a qualified service technician.
1.
Disconnect power to the appliance;
2.
Remove the two screws holding on 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 from the heat
transfer tube assembly;
5.
Carefully remove any build-up from the thermal switch
surface;
Do not dent or scratch the surface of the thermal switch. If
the thermal switch is damaged it MUST be replaced.
6.
Clean 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 unit.
4.3
Once annually, remove the retention head and electrodes
from the drawer assembly and remove all foreign matter,
if necessary. Also clean the extremity of the burner tube,
if necessary.
4.4
Replace the nozzle once a year with the one specified in
Table 7.
4.5
Tank Filter
The tank filter should be replaced as required. Follow the
manufacturer's instructions.
Secondary Filter
The 10 micron, or finer, filter cartridge should be replaced
annually. Follow the manufacturer's instructions.
4.6
Dirty filters have an impact on the efficiency of the
furnace and increase fuel consumption.
Air filters should be replaced at least once a year. Very
dusty conditions, the presence of animal hair and the like
will require more frequent changing or cleaning.
11
CLEANING THE BLOCKED
VENT SHUT-OFF DEVICE
(BVSO)
CAUTION
CLEANING OF THE BURNER
HEAD
REPLACING THE NOZZLE
REPLACING THE OIL FILTER
REPLACING THE AIR FILTER
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