Tjernlund SS1C SideShot with UC1 Universal Control (Version X.06) 8504103 Rev D 07/05 - Manual (Page 20)

NOTES: All draft adjustments are approximate. This
chart is to be used for initial draft adjustment only.
Subsequent draft adjustments may be required to com-
pensate for various field conditions: wind, vent pipe
resistance, building pressure, multiple appliances, etc.
BTU/HR input ratings assume 30% or less excess air
for flame retention burners and 50% to 100% excess
air for conventional oil burners.
Do not exceed the recommended BTU/HR input range
of the SideShot.
Under no circumstances shall the minimum draft
adjustment be used for the larger input range of this
product.
Improper draft adjustment may result in the dispersion
of flue products/carbon monoxide into the building interior.
DIAGRAM P
DRAFT ADJUSTMENT PROCEDURE FOR OIL EQUIPMENT
The SideShot Vent system will properly vent a wide range of BTU/hr. input capacities. To compensate for different burner capaci-
ties, vent connector lengths and wind conditions it features a draft adjustment located on the outside of the Vent Hood. In general,
positioning the draft adjustment inward will cause the SideShot to operate at lowest capacity. Positioning the draft adjustment
outward will cause the SideShot to operate at highest capacity.
IMPORTANT:
The following paragraph describes the initial draft adjustment. It may be necessary to make a slight readjustment to compensate
for various conditions: wind, vent connector resistance, negative building pressure and multiple appliances.
ASHRAE lists the average design factor for wind loads in North America at 15 MPH. Refer to the Draft Adjustment Chart above.
We recommend that the 25 MPH category be used to allow for excursions beyond the 15 MPH average. It is not recommended for
the SideShot to be terminated on a wall that faces the direction of the prevailing winds. Backdrafts by severe winds can cause oil
odors to remain in the structure and/or interrupt heating equipment operation. If the SideShot is terminated in a direction prone to
higher winds, or if higher winds are common in your geographic area, use the 40 MPH category to determine the proper draft
adjustment setting. If the draft adjustment is set at the 25 MPH category and sustained winds exceeding 25 MPH are present, the
Fan Proving Switch will disrupt the burner until the wind load drops below 25 MPH. Wind loads referenced are based on straight
line winds directed against the Vent Hood.
IMPORTANT:
Before proceeding, close all windows, doors and fireplace dampers. Turn on all appliances in the structure that exhaust indoor air
such as clothes dryer, exhaust fans, range hoods, bathroom and whole house exhaust fans. Failure to perform the draft adjust-
ment procedure may cause a poor vent system installation possibly resulting in fire, carbon monoxide poisoning, explosion, per-
sonal injury or property damage.
1. Set the draft adjustment on SS1C Vent Hood to the appropriate setting based on the above instructions and the Draft Adjustment
Chart. Adjustment is accomplished by loosening both nuts on each side of the Vent Hood and centering both indicators to the
desired setting. Tighten the four nuts to secure the draft adjustment at desired setting.
2. Insert a stack thermometer into the vent pipe as close as possible to the SS1C inlet. NOTE: plug hole when finished with installation.
3. Adjust barometric draft control to the minimum or least draft setting.
4. Place the heating system into operation. NOTE: There will be a slight pause between the venter operation and the burner operation.
A Venter pre-purge of up to 35 seconds may also be selected. See “Pre / Post-Purge Settings” on page 5.
5. Continuously monitor the over fire draft and adjust the barometric damper to maintain a reading of -.02 to -.03” W.C..
When the flue gas temperature at the venter inlet has stabilized make any final draft adjustment necessary to maintain a
reading of -.02 to -.03” W.C.. IMPORTANT: If a minimum of -.02” W.C. cannot be obtained by adjusting the barometric
damper closed (more draft), the SS1C draft control on the vent hood should be pushed out (more draft) and the barometric
damper readjusted to reach -.02 to -.03” W.C..
17
DRAFT ADJUSTMENT PROCEDURE