2) Place the appliance and SS1R in operation. Measure the over-fire draft. Make necessary adjustments to the primary
air intake and barometric draft control to comply with the over-fire draft requirements of the appliance. The over-fire draft
should be in a range of -.02" to -.04" W.C., with the optimum setting at -.03” W.C. If adjustments to the primary air intake and
barometric draft control do not provide the required over-fire draft, the SS1R draft adjustment must be repositioned, accord-
ingly. Measure over-fire draft after repositioning SS1R draft adjustment.
COMBUSTION AIR
Adequate combustion air is vital for proper combustion and for safe venting. Likewise, for proper SS1R 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 31/NFPA 211. When installing a SS1R, it is usually not
necessary to supply any more combustion air than normally required when conventional venting. Common symptoms of inade-
quate combustion air include: Fan Proving Switch short cycling, odor present at the end of burner cycle, outside air enters the
structure through the SS1R Vent System on SS1R/Appliance off cycle.
SYSTEM OPERATION CHECK-OUT
1. Adjust thermostat to call for heat.
2. Verify that the SS1R and the burner motor both operate prior to ignition.
Allow heating equipment and SS1R 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, exhaust fans,
such as range hoods, bathroom exhaust and whole house fans.
5. Allow SS1R and equipment to operate for at least five minutes. Tripping of the burner circuit by the Fan Prover Switch or
Limit during the five 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 to the “off” position. Verify the SS1R and the burner operate for several minutes, without a burner flame,
before the system shuts off. This is due to the Post-purge settings of the integral UC1 Universal Control. See page 4 for Pre
and Post-Purge settings.
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 SS1R 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.
15
NOTES: All draft adjustments are approximate. This chart is
to be used for initial draft adjustment only. Subsequent draft
adjustments may be required to compensate 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.
Do not exceed the recommended BTU/HR input range of the
SS1R.
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.
