Controls; Pilot Flame Adjustment; Pilot Adjustment - COZY CF354C-R Installation And Operating Instructions Manual

Counterflow wall furnace
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Installation of B-W Gas Vent
for one-story buildings or for
first floor of multi-story
buildings.
Sheet metal screw base
plate to header
Header plate of vented wall furnace
(also acts as firestop)
FIGURE B

CONTROLS

All controls are pre-assembled at the factory. The normal
manifold pressure should be 3.5" w.c. for Natural Gas and
10" w.c. for L.P. Gas. The maximum inlet pressure in the
gas supply pipe should never exceed 7.0" w.c. for Natural
Gas or 14" w.c. for L.P. Gas. The minimum inlet pressure
in the gas supply pipe should never be lower than 4.5"
w.c. for Natural Gas or 11" w.c. for L.P. Gas.
Pilot Adj.
Screw
ROBERTSHAW
7200ER-SO4
STANDING PILOT
FIGURE 10-A
The appliance is orificed at the factory for elevations up
to 2,000 feet. If installed above 2,000 feet, the BTU input
must be reduced 4% per 1,000 feet. See the following
orifice chart for the proper orifice for a specific elevation.

PILOT ADJUSTMENT

Locate the pilot adjustment screw on the valve. The pilot
flame should surround at least the top 3/8" of the powerpile
(pilot generator) or flame sensor (see Figure 8). The pilot
is unregulated so it will be operating at inlet line pressure
(maximum 7" w.c. for Natural Gas and 11" w.c. for
Propane Gas). To decrease the pilot flame, turn the screw
clockwise (approximately six full turns to bottom of pilot
light channel) until you produce sufficient flame at the
minimum noise level.

PILOT FLAME ADJUSTMENT

PILOT FLAME SHOULD ENVELOP 3/8 TO ½ INCH
OF THE TIP OF THE GENERATOR.
Ceiling plate spacers to center
B-W Gas Vent in stud space -
nail securely at both ends.
Plate cut away for full
width of stud space to
provide ventilation.
Studs on
16 inch centers
Use manufacturer's method of
fastening pipe to base plate.
Pilot Adj.
Screw
ROBERTSHAW
7200IPER-SO4
I.I.D. PILOT
FIGURE 10-B
Installation of B-W Gas Vent
for each subsequent ceiling or
floor level of multistory buildings.
FIGURE C
NATURAL GAS
SPECIFIC ELEVATIONS
Model
0 to
2,000 -
No.
2,000'
4,000'
CF353C
34
36
CF357C
34
36
CF503C 3.4mm
31
CF557C
29
30
CF653C
26
27
ORDER KIT #49840 2287-1 HIGH ALTITUDE KIT
SPECIFIC ELEVATIONS
Model
0 to
2,000 -
No.
2,000'
4,000'
CF354C
50
52
CF358C
50
52
CF504C
45
47
CF558C 2.15mm
45
CF654C
42
43
ORDER KIT #49840 2287-1 HIGH ALTITUDE KIT
3/8" TO 1/2"
STANDING PILOT
FIGURE 8-A
Page 9
Firestop spacers supplied
by manufacturer of B-W
Gas Vent
Plate cut away
to provide passage
of B-W Gas Vent
Nail firestop spacer securely
4,000 -
6,000 -
6,000'
8,000'
37
38
37
38
31
32
30
31
28
29
L.P. GAS
4,000 -
6,000 -
6,000'
8,000'
52
53
54
52
53
54
48
49
50
47
48
49
44
45
47
3/8" TO
I.I.D. PILOT
FIGURE 8-B
8,000 -
10,000'
41
41
35
32
30
8,000 -
10,000'
1/2"

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