Tjernlund SS1 SideShot with UC1 Universal Control (Version X.02) 8504102 Rev 07/02 - Manual (Page 20)

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 adjust SS1 Vent Hood cone in (less draft) or adjust barometric for (less draft) repeat steps A
through C.
5. Lock down the he SS1 draft adjustment with four lock nuts on adjustment cone brackets and barometric damper adjustment knob
if a barometric is installed, (See Diagram P).
6. 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 SS1 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 SS1, 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 SS1 Vent System on SS1/Appliance off cycle.
FINAL SYSTEM OPERATION CHECK-OUT
1. Adjust thermostat or appliance controls to call for heat.
2. Verify that the SS1 operates first, prior to burner ignition.
Allow heating equipment and SS1 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 SS1 and equipment to operate for at least 15 minutes. Tripping of the burner circuit by the Fan Prover Switch or High
Limit 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
after the burner stops firing. 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 trouble shooting 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 SS1 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 SideShot Draft Adjustment, located outdoors on the Vent Hood, has two functions: A) It allows the installer
to fine-tune the amount of draft that the SideShot must develop to vent the specific appliance, and B) It prevents air infiltration
caused by strong winds and gusts. Air infiltration back through the vent system will bring with it the odors from the flue gas residue
on the inside of the vent pipe. When the Draft Adjustment is at an inward setting (lower number) the Vent Hood will deflect a
greater volume of wind than at a higher setting.
REMINDER : The most significant preventer of wind-induced air infiltration is choosing a proper termination location of
the SideShot before installation, see requirements on page 6, under "Vent Hood Termination Clearances."
V
Verify that the Draft Adjustment is appropriate for the BTU/hr input, as shown on the "Draft Adjustment Chart," page 17 . If neces-
sary, change setting by loosening both nuts on each side of the Vent Hood and center both indicators to the desired setting.
Tighten the four nuts to secure new draft adjustment.
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.
19
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”, page 17.