International comfort products N9MP1 User Manual page 10

User's Information Manual
Pilot Burner
Figure 8
Pilot Burner
Proper Flame
Adjustment
3 1
/ ² to / ²
8 2
Monthly Inspection
A properly adjusted gas unit should not require cleaning at fre-
quent intervals, but it should be inspected regularly to ensure safe
and efficient operation. A brief monthly inspection is recom-
mended that does not require disassembly. In addition you should
have the unit inspected, and cleaned if required, by a qualified ser-
vice technician annually.
1. Check the vents to be sure they are clear and free of ob-
structions.
2. Check return air duct to make sure it is sealed to unit casing
and that it is in good physical condition.
10
Flame Sensor
Flame Rod
Hot Surface
Ignitor
dwg 25--23--32
3. Inspect the unit base. It must be in good physical condition.
4. Inspect the drain line and overflow line monthly.
5. Remove the front panel and use a flashlight to inspect the
visible part of the burners and igniter. Check for loose soot
and give particular attention to obvious deterioration from
corrosion or other sources. If soot or deterioration is found
inside the unit DO NOT OPERATE UNIT; call a qualified
service technician.
Lubrication
The blower motor and the combustion air blower are prelubricated
by the manufacturer and DO NOT require oiling.
Service Technician Checks
When the unit is being inspected for condition and operation have
the Service Technician check the following items.
1. Check all flue gas passages including main and pilot burn-
ers, heat exchanger, and vent .
2. Check gas pipe and all connections inside and leading to
the unit for leaks.
3. Check electrical wiring and connections.
4. Check supply and return air ducts for leakage, blockage and
connections to unit.
5. Check circulating air blower wheel and motor. Clean them
if required.
6. Perform an operational checkout on the unit to be sure safe-
ty controls function and that unit operates properly.
For additional information, the Service Technician can con-
sult the installation instructions for the unit.
441 02 2001 06