Modine Manufacturing GAS-FIRED HEATERS PD 사용자 설명서
11
10
12
14
16
18
20
22
24
26
28
30
35
40
45
50
55
60
70
80
90
12
14
16
18
20
22
24
26
28
30
35
40
45
50
55
60
70
80
90
100
120
120
180
150
129
112
100
150
129
112
100
90
82
75
69
64
60
51
45
40
36
33
30
26
22
20
18
15
82
75
69
64
60
51
45
40
36
33
30
26
22
20
18
15
360
300
257
225
200
180
164
150
138
129
120
103
300
257
225
200
180
164
150
138
129
120
103
90
80
72
65
60
51
45
40
36
30
80
72
65
60
51
45
40
36
30
720
600
514
450
400
360
327
300
277
257
240
206
180
160
144
131
120
103
600
514
450
400
360
327
300
277
257
240
206
180
160
144
131
120
103
90
80
72
60
80
72
60
1800
1500
1286
1125
1000
1500
1286
1125
1000
900
818
750
692
643
600
514
450
400
360
327
300
257
225
200
180
150
818
750
692
643
600
514
450
400
360
327
300
257
225
200
180
150
CHECKING INPUT RATE
Figure 9
Major Gas and Electric Components
Major Gas and Electric Components
Table 5
Orifice Drill Sizes with Decimal Equivalents
Orifice Drill Sizes with Decimal Equivalents
Dia.
Dia.
Drill
Decimal
Drill
Decimal
Size
Equivalent
Size
Equivalent
18
.1695
38
.1015
21
.1590
39
.0995
23
.1540
41
.0960
25
.1495
42
.0935
26
.1470
43
.0890
28
.1405
45
.0820
30
.1285
52
.0635
36
.1065
Main Burner Orifices
Table 6
Manifold Pressure & Gas Consumption *
Manifold Pressure & Gas Consumption *
Figure 10
Dials of Typical Gas Meter
Dials of Typical Gas Meter
Natural
Propane
BTU/Cu. Ft.
1050
2500
No. of
Model
Specific Gravity
0.60
1.53
Orifices
Manifold Pressure In. W.C.
3.5
10.0
CFH
28.6
12.0
Gal/Hr. Propane
–
.33
PD 30
Sec/cu. ft.
126
300
1
Orifice Drill Size
38
52
CFH
47.6
20.0
PD 50
Gal/Hr. Propane
–
.55
BD 50
Sec/cu. ft.
76
180
1
Orifice Drill Size
30
45
CFH
71.4
30.0
PD 75
Gal/Hr. Propane
–
.82
BD 75
Sec/cu. ft.
50
120
1
Orifice Drill Size
21
39
CFH
95.2
40.0
PD 100
Gal/Hr. Propane
–
1.15
BD 100
Sec/cu. ft.
38
90
2
Orifice Drill Size
30
45
CFH
119.0
50.0
PD 125
Gal/Hr. Propane
–
1.43
BD 125
Sec/cu. ft.
30
72
2
Orifice Drill Size
26
43
CFH
138.1
58.0
PD 150
Gal/Hr. Propane
–
1.64
BD 150
Sec/cu. ft.
26
62
2
Orifice Drill Size
21
39
CFH
166.7
70.0
PD 175
Gal/Hr. Propane
–
1.86
BD 175
Sec/cu. ft.
22
51
3
Orifice Drill Size
28
43
CFH
190.5
80.0
PD 200
Gal/Hr. Propane
–
2.19
BD 200
Sec/cu. ft.
19
45
3
Orifice Drill Size
25
42
CFH
238.1
100.0
PD 250
Gal/Hr. Propane
–
2.74
BD 250
Sec/cu. ft.
15
36
3
Orifice Drill Size
18
36
CFH
285.7
120.0
PD 300
Gal/Hr. Propane
–
3.29
BD 300
Sec/cu. ft.
13
30
4
Orifice Drill Size
21
39
CFH
333.3
140.0
PD 350
Gal/Hr. Propane
–
3.84
BD 350
Sec/cu. ft.
11
26
5
Orifice Drill Size
23
41
CFH
381.0
160.0
PD 400
Gal/Hr. Propane
–
4.38
BD 400
Sec/cu. ft.
9
23
6
Orifice Drill Size
25
42
Table 4
Meter-Timing Gas
Meter-Timing Gas
(Time required for one revolution is charted for various size
meter dials and various rates of gas input in cu. ft. per hour. To
convert to Btuh, multiply by the heating value of the gas used.)
meter dials and various rates of gas input in cu. ft. per hour. To
convert to Btuh, multiply by the heating value of the gas used.)
Time for 1
Revolution,
Sec.
1/2 cu. ft.
1 cu. ft.
2 cu. ft.
5 cu. ft.
Input, Cu. Ft. per Hour, When Meter Dial Size is:
*Above gases based on average standards. Units can be furnished
for gases of different values and specific gravities. (Gal./Hr. based
on 60°F. 30" Hg., 91,500 BTU/Gal.) In Canada, refer to rating plate
on side of unit for orifices at high altitude.
for gases of different values and specific gravities. (Gal./Hr. based
on 60°F. 30" Hg., 91,500 BTU/Gal.) In Canada, refer to rating plate
on side of unit for orifices at high altitude.
Pilot Orifice Identity Numbers
Pilot Burner
Identity No.
Identity No.
Manufacturer
Natural Gas
Propane Gas
Honeywell
BCR-18
BBR-11
Robertshaw
Johnson
7715
4710
1
8
①
N
1
O
①
P
L
①
As number appears on top of pilot orifice.
PILOT TUBING
FAN
GUARD
FAN MOTOR
COMBINATION
GAS CONTROL
IGNITION
CONTROL
CONTROL
TRANSFORMER
JUNCTION
BOX
TERMINAL
BOARD
ENTRANCE FOR
COMBUSTION AIR