Lennox gas stove Benutzerhandbuch

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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Maintenance and Servicing
m
aintenanCe
 C
heCklist
:
The following should only be performed by a qualified 
service technician.
Caution:  Label  all  wires  prior  to  disconnection  when 
servicing  controls.    Wiring  errors  can  cause  improper 
and dangerous operation.  Verify proper operation after 
servicing.
1. Annual inspection should be made and the following 
checks performed:
o
When unit is cool, open glass viewing door and inspect
burner for dirt, soot, and lint accumulations, and removeif
necessary. If excessive soot accumulation is present on
burner, have a qualified service technician adjust
burner for proper combustion.
o
Clean inside of glass viewing door with gas fireplace
glass cleaner. NEVER attempt to open door or clean
glass when unit is hot.
o
Check the hot air outlet vents for lint or other accumula-
tions. Never block or restrict vent openings or obstruct
flow of ventilation air.
o
Check that direct vent pipe, air intake, and flue are open
and free of soot, blockage, or debris.
o
Check  gaskets  once  a  year.  Gaskets  must  be  tight.
Replace if necessary.
o
Inspect the pilot system for proper flame. NEVER ADJUST
THE PILOT until after the gas pressure has been checked
and supply lines have been completely bled (this may
take an hour or more when bleeding through the pilot).
All pilots are checked and burned at the factory prior to
shipment. The pilot adjustment screw is located to the
lower left of the flame height control knob.
.2 
Adjust the pilot screw to properly size the flames. The
flames should  completely  surround  the  thermopile
and thermocouple and extend across the main burner
tube ports. Be careful not to back the screw out of its
threads.
o
Check that the area around the stove is kept clear and
is free of combustible materials, gasoline, and other
flammable vapors and liquids.
o
Check  the  millivolt  system  as  per  the  table  on  this
page.
Millivolt and System Checks
Check
Test
To
Test
Connect 
Meter
Leads to 
Terminals
Thermostat 
Connects
Meter 
Reading
Should Be
A
Complete
System
 & 
Closed
100 MV
or More
B
Thermopile
Output
1 & 
Open
Greater 
Than
5 MV
C
System
Resistance
 & 
Closed
.5 Ohms
See Figure 7 - Wiring Terminals
p
roper
 p
ilot
 f
lame
 a
ppearanCe
Figure 8
Indent
.   The viewing glass should be cleaned periodically (see 
Glass Door Cleaning & Maintenance).
.   Should repairs or maintenance of the stove require 
the  disassembly  of  the  vent/air  intake  system,  the 
reassembly and resealing should be completed by a 
qualified service technician and follow the instructions 
on pages 11, 1 & 1 of this manual.