6
3.4
BVSO PERFORMANCE TEST
The purpose of the following test is to check that the electrical
outlet on the furnace, designated to the BVSO, is functional.
1. Start up the burner;
2. Remove the three-pole plug from the BVSO outlet on the
furnace;
3. The burner must shut-off immediately.
4. If the test is not in line with the above,
call a qualified
service technician
.
3.5
FLAME FAILURE
1. Wait at least five minutes before pushing the safety
control;
2. Check fuses or breakers;
3. Check oil level in the tank and make sure that the oil
valve is open (if the tank is empty, have it filled and
purge the oil line);
4. Make sure that the aquastat is set above water
temperature;
5. Reset the safety control
ONCE ONLY;
6. If the burner still does not start,
call a qualified service
technician.
4.0 MAINTENANCE
4.1
GENERAL
1. The water heater and flue pipe should be cleaned, once
a year;
2. The unit should be flushed monthly and in the case of
hard water areas, more often;
3. The anodes should be inspected annually, and if
necessary, replaced. (The anodes have a life
expectancy from one to ten years depending on
water conditions);
CAUTION
The warranty will be void if the anodes are not replaced.
4. The nozzle should be inspected and if necessary,
removed and replaced. Handle nozzle with care so that
the inside surface of the tip is not scratched.
5. The electrodes should be cleaned and adjusted
according to the burner man
ufacturer’s specifications;
6. Do not lubricate the oil burner motor, it is permanently
lubricated;
7. The oil filter should be changed annually:
a) Place a pan under strainer and remove strainer
cover, taking care not to damage gaskets.
b) Take out strainer cartridge and replace it annually.
c) Re-assemble strainer.
4.2
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.
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Disconnect electrical power supply to the furnace
before servicing the blocked vent shut-off.
1. Remove the two screws holding down the BVSO
assembly cover;
2. Remove the cover;
3. 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;
4. 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.
5. Clear and remove any build-up or obstruction inside the
heat transfer tube;
6. Re-mount, lock and fasten the control box with the 2
screws removed in step 3;
7. Re-attach the assembly cover with the screws removed in
step 1;
8. Re-establish power to the appliance.
4.3
CLEANING
1. Turn main power switch "OFF";
2. Close oil valve at oil storage tank;
3. Remove flue pipe from water heater flue outlet;
4. Clean flue pipe with wire brush and vacuum;
5. Remove oil burner from water heater and inspect
combustion chamber;
6. Remove the screws holding the transformer to the
casing and swing transformer back on its hinges;
7. Disconnect and remove the tubing from the nozzle by
removing the nut;
8. Pull out the assembly;
9. Clean the nozzle inside the burner blast tube;
10. Check to see that the nozzle and electrode settings are
correct (see burner manufacturer’s specifications);
11. Re-install assembly by reversing the above procedure.