Nozzle; Oil Filter; Tank Filter; Secondary Filter - Dettson OLR105A12D Mode D'emploi

4.3.2

Nozzle

Replace the nozzle with the one specified in Tables 3 to 5.
4.4

OIL FILTER

4.4.1

Tank filter

The tank filter should be replaced as required.
4.4.2

Secondary filter

The 10 micron (or less) filter cartridges should be replaced
annually.
4.5

AIR FILTERS

Air filters are the disposable type. They should be replaced
at least once a year. Dusty conditions, presence of animal
hair etc. may require more frequent filter changes. Dirty
filters will impact furnace efficiency and increase oil
consumption.
4.6

MOTOR LUBRICATION

Do NOT lubricate the oil burner motor or the direct drive
blower motor as it is permanently lubricated.
4.7 CAS-2B COMBUSTION AIR KIT
(chimney venting)
If used, check the CAS-2B combustion air kit for proper
operation. Check to see that the inlet screen is not plugged.
Block the air inlet completely and ensure that a zero smoke
reading results. If a zero smoke reading is not obtained, set
up the burner as indicated in Tables 3 to 5.
Gradually block off the intake. The CO
maximum of 0.5 percentage points at the fully blocked
condition. If not, check that the VRV gate is pivoting freely
and that the pivot rod is in a horizontal position. Also, check
that the counterweight has been properly adjusted in
accordance with CAS-2B installation instructions.
4.8

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.
should increase to a
2
14
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.