Tjernlund SS2 SideShot with UC1 Universal Control (Version X.02) 8504105 Rev 07/02 - Manual (Page 18)

3. If a draft gauge is not available test for spillage at the draft hood, diverter or barometric draft control using the flame from a
match, lighter or candle and determine the following:
A. The flame or smoke is being drawn into the draft hood, diverter or barometric draft control.
B. The main burner is burning properly, i.e. no floating, lifting or flash back.
C. If the heater has a two stage or modulating gas valve verify that burner operates properly at
both low and high fire.
If the draft appears excessive turn the draft adjustment knob counterclockwise and repeat
steps A through C.
4. Lock the draft adjustment knob in place by tightening the locking nut behind the bracket,
(See Diagram K).
5. Turn off appliances and exhaust fans activated for draft adjustment procedure.
COMBUSTION AIR
Adequate combustion air is vital for proper combustion and for safe venting. Likewise, for proper SS2 performance, adequate
combustion air must be available to the appliance. Many installers assume adequate combustion air is present, especially in older
homes. In some cases this is a false assumption, because many older homes have been made "tight" due to weatherization. Size
the combustion air opening(s) into the appliance room as outlined NFPA 54/NFPA 211. When installing a SS2, it is not necessary
to supply any more combustion air than normally required when conventional venting. Common symptoms of inadequate combus-
tion air include: Fan Proving Switch short cycling, odor present at the end of burner cycle, outside air enters the structure through
the SS2 Vent System on SS2/Appliance off cycle.
FINAL SYSTEM OPERATION CHECK-OUT
1. Adjust thermostat or appliance controls to call for heat.
2. Verify that the SS2 operates first, prior to burner ignition.
Allow heating equipment and SS2 to operate continuously while performing steps 3-5.
3. Close all doors and windows of the building. If heating equipment is installed in utility room or closet, close the entrance door to
this room. Close fireplace dampers.
4. Turn on all appliances in the structure that exhaust indoor air during their operation, e.g. turn on clothes dryer and exhaust fans
such as range hoods, bathroom exhaust and whole house fans.
5. Allow SS2 and equipment to operate for at least 15 minutes. Tripping of the burner circuit by the Fan Prover Switch during the
15 minute operation indicates an unsafe operating condition. Turn fuel supply off to appliance and DO NOT OPERATE
UNTIL UNSAFE VENTING CONDITION IS INVESTIGATED BY QUALIFIED SERVICE PERSONNEL.
6. Turn thermostat or equipment controls to the "off" position. Verify that the venter operates for the post-purge time period set
while burner is not firing before the SS2 turns off. See “Pre / Post-Purge Settings” on page 5.
7. Return all windows, doors and exhaust fans to their original conditions of use.
TROUBLESHOOTING OIL ODORS
Many problems can be eliminated quite easily by having the equipment properly set up by a professional oil-heat service contrac-
tor. The sophistication of today's heating equipment and instrumentation needed for efficient operation requires proper training.
There is no substitute for the work of a qualified oil-heat service professional. All troubleshooting recommendations that follow
assume the equipment is installed and maintained by a qualified service person.
Post-purge: A post-purge is always necessary on oil installations. The factory default post-purge time period is 2 minutes. Just
as a chimney continues to draft after the burner has shut-down, the SS2 will continue to run to clear the vent system of residual
gases. The duration of the post-purge cycle is adjustable from 0 to 16 minutes. We recommend a minimum of 2 minutes post-
purge on oil.
Draft Adjustment: The SS2 Draft Adjustment, located on the rear housing of the SS2 is used for setting up the appliance for
proper draft. See “Draft Adjustment Procedure” on page 16.
Burner Adjustment: Verify that the over-fire draft matches that recommended by the heating equipment manufacturer. Adjust the
combustion efficiency and smoke characteristics to optimum levels of performance. See “Draft Adjustment Procedure” on page 16.
IMPORTANT
Any adjustment to the draft setting must be followed by an over-fire draft measurement and necessary adjustments to the
primary air intake on the burner and barometric draft control. See “Draft Adjustment Procedure” on page 16.
17
DIAGRAM K
DRAFT ADJUSTMENT
LOCKING KEPS NUT
DRAFT
ADJUSTMENT
KNOB
TIGHTEN KEPS NUT
AGAINST BRACKET ONCE
DRAFT POSITION IS SET