59
Check burner flame
Visually check main burner flames at each start-up after long
shutdown periods or at least every six months. A burner
viewport is located on the burner mounting flange.
Perform start-up and checks
1. Start appliance and perform checks and tests specified in
Section 9 - Start-up
.
2. Verify cold fill pressure is correct and that operating
pressure does not go too high.
The area around the burner viewport is hot
and direct contact could result in burns.
WARNING
Figure 11-2_Flame Pattern Illustration
Normal Flame:
A normal flame at 100% of burner input is blue,
with slight yellow tips, a well defined flame and no flame lifting.
Yellow Tip:
Yellow tipping can be caused by blockage or partial
obstruction of air flow to the burner.
Yellow Flames:
Yellow flames can be caused by blockage of
primary air flow to the burner or excessive gas input. This
condition MUST be corrected immediately.
Lifting Flames:
Lifting flames can be caused by over firing the
burner, excessive primary air or high draft.
If improper flame is observed, examine the venting system,
ensure proper gas supply and adequate supply of combustion
and ventilation air.
Check all wiring
1. Inspect all wiring, making sure wires are in good condition
and securely attached.
Check control settings
1. Set the SMART TOUCH control module display to
Parameter Mode and check all settings. See
Section 1
of the
Power-fin Service Manual. Adjust settings if necessary. See
Section 1
of the Power-fin Service Manual for adjustment
procedures.
2. Check settings of external limit controls (if any) and adjust
if necessary.
11
Maintenance
(continued)
Installation & Operation Manual
Check flue gas passageways
Any sign of soot around the inner jacket, outer jacket, flue
pipe connections, burner or in the areas between the fins on
the copper heat exchanger indicates a need for cleaning. The
following cleaning procedure must only be performed by a
qualified serviceman or installer. Proper service is required to
maintain safe operation. Properly installed and adjusted units
seldom need flue cleaning.
All gaskets/sealants on disassembled
components or jacket panels must be
replaced with new gaskets/sealants on
reassembly. Gasket and sealant kits are
available from your distributor.
NOTICE
CAUTION
When a Category IV vent system is
disconnected for any reason, the flue must
be reassembled and resealed according to the
vent manufacturer’s instructions.
