Manual 2100-365
Page 23
CANADIAN INSTALLATIONS ONLY
Rating of gas utilization equipment is based on sea
level operation and need not be changed for operation
at elevations up to 2000 feet. For operation at
elevations from 2001 to 4500 feet a main burner
orifice change is required in accordance with CAN/
CGA-2.17-M91 Standard for Gas-Fired Appliances
for Use at High Altitudes. See Table 8 for 2001-
4500 feet altitude derate information, and for fuel gas
BTU ratings from 800-1100 BTU per cubic foot.
TABLE 8
HIGH ALTITUDE DERATE CHARTS
CANADIAN INSTALLATIONS ONLY
-
-
S
A
G
L
A
R
U
T
A
N
R
O
F
T
R
A
H
C
E
Z
I
S
E
C
I
F
I
R
O
0
0
0
,
5
2
D
R
A
D
N
A
T
S
Y
R
O
T
C
A
F
R
E
N
R
U
B
R
E
P
U
T
B
t
a
e
H
s
a
G
*
e
u
l
a
V
.
t
F
.
u
C
/
U
T
B
p
U
o
t
0
0
0
2
t
e
e
F
1
0
0
2
o
t
0
0
5
4
t
e
e
F
9
4
8
-
0
0
8
0
7
.
2
0
5
.
2
9
9
8
-
0
8
8
0
6
.
2
0
5
.
2
9
4
9
-
0
0
9
0
5
.
2
0
4
.
2
9
9
9
-
0
5
9
5
4
.
2
5
3
.
2
9
4
0
1
-
0
0
0
1
0
4
.
2
0
3
.
2
0
0
1
1
-
0
5
0
1
0
3
.
2
5
2
.
2
* At standard conditions: 30.00 inches Mercury, 60F, saturated.
NOTE: 2.40
Standard factory installed orifice size.
2.30
is shipped with the unit for field installed optional 10% derate.
All orifice sizes not shown with a black background are available in Canadian Natural Gas High Altitude Kit,
Bard Part No. GCK-CAN-N1. Orifice sizes with black background are available separately.
-
-
S
A
G
L
A
R
U
T
A
N
R
O
F
T
R
A
H
C
E
Z
I
S
E
C
I
F
I
R
O
0
0
5
,
2
2
N
O
I
T
P
O
D
E
L
L
A
T
S
N
I
D
L
E
I
F
R
E
N
R
U
B
R
E
P
U
T
B
t
a
e
H
s
a
G
*
e
u
l
a
V
.
t
F
.
u
C
/
U
T
B
p
U
o
t
0
0
0
2
t
e
e
F
1
0
0
2
o
t
0
0
5
4
t
e
e
F
9
4
8
-
0
0
8
0
5
.
2
0
4
.
2
9
9
8
-
0
8
8
0
5
.
2
5
3
.
2
9
4
9
-
0
0
9
0
4
.
2
0
3
.
2
9
9
9
-
0
5
9
5
3
.
2
5
2
.
2
9
4
0
1
-
0
0
0
1
0
3
.
2
0
2
.
2
0
0
1
1
-
0
5
0
1
5
2
.
2
0
1
.
2
* At standard conditions: 30.00 inches Mercury, 60F, saturated.
NOTE:
2.30
Orifices are shipped with the unit for field installed optional 10% input derate.
2.40
is the factory installed orifice size for full rated input.
All other orifice sizes not shown with black background are available in U.S. Natural Gas High Altitude Kit,
Bard Part No. GCK-US-N1. Orifice sizes shown on black background are available separately.
Summary of Contents for WG421
Page 8: ...Manual 2100 365 Page 5 MIS 1352 FIGURE 1 UNIT DIMENSIONS...
Page 12: ...Manual 2100 365 Page 9 FIGURE 4 MOUNTING INSTRUCTIONS MIS 1472...
Page 15: ...Manual 2100 365 Page 12 FIGURE 8 COMMON WALL MOUNTING INSTALLATIONS MIS 1474...
Page 20: ...Manual 2100 365 Page 17 FIGURE 11 LOW VOLTAGE WIRING MIS 1162...
Page 21: ...Manual 2100 365 Page 18 FIGURE 12 GAS PIPE CONNECTION MIS 1478...
Page 29: ...Manual 2100 365 Page 26 26 LIGHTING AND SHUTDOWN INSTRUCTIONS FIGURE 14 INSTRUCTION LABEL...
Page 34: ...Manual 2100 365 Page 31 FIGURE 18 460 VOLT BLOWER MOTOR WIRING OPTIONS MIS 1487 A B C...
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