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S
I
AFETY
NSPECTION
1. Conduct a visual leakage test of the oil appliance piping and control system downstream of the oil shutoff valve
in the supply line to the appliance.
2. Visually inspect the venting system for proper size, horizontal pitch and vent termination, and determine there is
no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.
3. Determine that the chimney or vent is acceptable to the authority having jurisdiction.
4. Inspect burner, combustion chamber and flue passages for blockage and corrosion.
5. Applicable only to furnaces – inspect heat exchanger for cracks, openings or excessive corrosion.
6. Applicable only to water heaters and boilers – inspect for evidence of water or combustion product leaks.
7. Insofar as is practical, close all building doors and windows and all doors between the space in which the
appliance is located and other spaces of the building. Turn on clothes dryers, stove top barbecues and central
vacuum cleaners. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate
at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers. If, after completing Steps 9
through 12, it is believed sufficient combustion air is not available, refer to local codes or in the absence of local
codes, in the United States NFPA 31- Standard for the Installation of Oil Burning Equipment; NFPA 211- Standard
for Chimneys, Fireplaces, Vents and Solid- Fuel Burning Appliances for guidance. In Canada CSA B139
Installation Code for Oil Burning Equipment.
8. Place in operation the appliance being inspected. Follow the appliance manufacturer's startup instructions.
Adjust the thermostat so appliance will operate continuously.
9.
Adjust the air and head settings according to the burner appliance manufacturer instructions. Determine that
the burner is operating properly, by carbon dioxide concentration, flue gas temperature and smoke density tests.
Check the cadmium sulfide cell to determine it is operating properly.
10. Turn on all other fuel-burning appliances within the same room so they will operate at their full inputs. Follow
start up instructions for each appliance.
11. Test for spillage at the draft control opening after 5 minutes of main burner operation. Use a match, candle or
smoke from a cigarette. Vent connected power atomizing oil burning equipment shall be operated for several
minutes and checked to see that the combustion products are going up the chimney, or vent. Take a draft
reading to assure the system over fire draft is according to the burner and appliance manufacturer instructions.
If the chimney or vent is drawing properly a negative pressure will be in the vent system. If not, the combustion
products will tend to be drawn out of the draft control. If the combustion products are escaping from the
opening of the draft control, the equipment should not be operated until proper adjustments or repairs are made
to provide adequate combustion air or draft through the chimney or vent system.
12. Repeat Step 11 on all other fuel burning appliances.
13. Return doors, windows, exhaust fans, fireplace dampers and any other fuel burning appliances to their previous
conditions of use.
14. Applicable only to furnaces – Check both the limit control and the fan control for proper operation. Follow the
appliance control manufacturer instructions for checking the fan and limit controls.
15. Applicable only to boilers –
a. Determine that the water pumps are in operating condition.
b. Test low water cutoffs, automatic feed controls, and relief valves in accordance with the manufacturer's
recommendations to determine they are in operating condition.
16. Applicable only to water heaters – Test relief valve, combination aquastat and high limit control in accordance
with the manufacturer's recommendations to determine they are in operating condition.
U
I
NPACKING
NSTRUCTIONS
1. The Field Controls OVD Series Oil Vent Damper is packaged in a single carton. It contains an assembled OVD, a
prewired WMO-1 safety switch with fiber gasket and attached metal shielded cable wire harness, instruction
manual and a vent plug.
2. Remove assembly and examine each component for possible damage.
3. If damage is apparent do not install the oil vent damper system.
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