Pilot Adjustment - COZY VC201C Consignes D'installation Et D'utilisation

C A U T I O N : THERE MAY BE MOMENTARY AND SPASMODIC ORANGE FLASHES IN THE FLAME.
This is caused by the burning of air borne dust particles and is not to be confused with the yellow tipping
which is a stable or permanent situation when there is insufficient primary air.

PILOT ADJUSTMENT

The pilot flame can be observed by opening the pilot
lighting hole cover. The pilot flame should surround the
top 3/8 to ½ inch of the pilot generator (See Figure H-2).
If the flame needs adjusting, first locate the pilot
adjustment screw cap and remove. Adjustment screw is
underneath (See Figure H-1).
- To increase the flame, turn the pilot adjustment
screw counterclockwise.
- To decrease the flame, turn the screw
clockwise.
NOTE: The pilot is unregulated. If incoming line pressure
is more than 7" w.c. Natural Gas or 11" w.c. for Propane
Gas, the pilot flame size should be decreased.
Fig. H-1
Pilot
Adj.
Screw
PILOT
Fig. H-2: Pilot Flame Adjustment
Pilot flame should
envelop 3/8 to
1/2 inch on the
tip of the
generator.
ADJ
3/8 to 1/2 Inch
MAIN BURNER ORIFICE
This appliance was shipped from the factory with an orifice
sized to give the correct gas input using the gas for which the
heater was equipped. There may be local conditions, such
as variation in gas supply pressure or BTU content of the
gas, which may be cause for a change in the orifice. The gas
company supplying the fuel or the installing contractor should
check the gas input rate.
If the rate exceeds the "BTUH INPUT" on the rating plate by
5%, the orifice must be replaced with a smaller orifice by a
qualified service technician to reduce the input to the rating
plate value.
The input rate will need to be adjusted for elevation above
2,000 Feet. See the Specific Elevations chart (to the right)
to determine the correct orifice size for your Model Number
and elevation. These orifice sizes are based on a heating
value of 1020 for Natural Gas and 2500 for Propane Gas.
CAUTION: As elevation increases, derating is necessary
for the safe and proper operation of this heater. Do not
increase the Btu input rate by increasing the orifice size
or gas pressure. Allow for elevation derating when sizing
gas heating equipment.
Fig. I: Proper Burner Flame
Inner Mantle 1/4"
Specific Elevations
Model 0 to
No. 2,000'
NATURAL GAS
VC201 45
VC351 35
VC501 30
PROPANE GAS
VC202 1.3mm
VC352 1.65mm
VC502 47
ORDER KIT #49820 45-1 High Altitude Kit
Page 9
Outer Mantle 3 - 5"
2,000' - 4,000' - 6,000' -
4,000' 6,000' 8,000'
47 48 49
37 38 40
31 31 32
55 56 56
53 53 54
49 49 50
3" to 5"
1/4"
8,000' -
10,000'
50
42
35
57
54
51
1017755-B