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AIR INLET
ALTERNATE EXHAUST
CONTROL BOX CONTAINING
CCB AND ICB BOARDS
Water
Model
Connections
GW-1000
2 1/2
GW-1300
2 1/2
GW-1500
2 1/2
GW-1850
2 1/2
GW-2100
2 1/2
GW-2500
2 1/2
Maximum gas supply pressure is 13.8" W.C. for both Natural and Propane Gas.
The minimum supply gas pressure is 7" W.C. for Natural Gas.
The minimum supply gas pressure for Propane is 11.0" W.C.
Requires: 120V, 60 Hz, 30 Amps.
Input Rating BTU/Hr.
Natural &
Model
Propane (LP) Gas
GW-1000
990,000
GW-1300
1,300,000
GW-1500
1,500,000
GW-1850
1,850,000
GW-2100
2,100,000
GW-2500
2,490,000
BTU Input/Output
Input Rating BTU/Hr. Output Rating BTU/Hr. 20 Deg. F Rise 30 Deg. F Rise 40 Deg. F Rise Maximum Flow Rate Minimum Flow Rate
Natural &
Model
Propane (LP) Gas
GW-1000
990,000
GW-1300
1,300,000
GW-1500
1,500,000
GW-1850
1,650,000
GW-2100
2,100,000
GW-2500
2,490,000
Note: Flow rates and pressure drops shown above are through the boiler only and include no field piping. The field piping must also be
considered when sizing system pumps.
Note: The standard factory supplied internal rear header mounted pump is sized for the boiler and up to additional 50 equivalent feet
of field piping.
A 012.16
G
ELECTRICAL
CONNECTIONS
OUTLET/ECO
5 7/16"
GAS INLET
E
14 1/2"
PRESSURE RELIEF VALVE
Gas
Connections Vent
Inlet Air
2
10
8
2
12
10
2
12
10
2 1/2
14
12
2 1/2
14
12
2 1/2
16
14
HOT WATER SUPPLY BOILER RECOVERY CAPACITIES
40
GPH
2520
GPH
3309
GPH
3818
GPH
4709
GPH
5345
GPH
6338
Genesis BTU Input/Output And Flow Rates
Natural &
Propane (LP) Gas
GPM
831,600
83
1,092,000
109
1,260,000
126
1,554,000
154
1,764,000
N/A
2,091,600
N/A
FLOW
SWITCH
F
31 3/4"
B
INLET
TEMP.
All Dimensions in Inches
A
Width
B
WO/Pump
Height
C
47
40 1/2
14
57 1/2
40 1/2
24 3/4
64 1/2
40 1/2
30
78 3/4
43 1/4
27 3/4
85 1/2
43 1/4
31
99 1/2
43 1/4
38
Temperature Rise -Degrees F. Gallons Per Hour
50
60
70
60
2016
1680
1440
1260
2847
2208
1891
1655
3055
2545
2182
1909
3767
3139
2691
2355
4276
3564
3055
2673
5071
4225
3622
3169
Boiler Rate of Flow and Pressure Drop
PD-Ft.
PD-Ft.
Head
GPM
Head
GPM
5.1
55
2.7
42
72
73
4.2
55
10.1
84
8.3
83
19
104
10.1
78
N/A
116
14.5
68
N/A
139
16.5
105
A
C
TOP VIEW
D
E
F
12 1/2
36 1/4
31 3/4
20 3/4
12 1/2
36 1/4
31 3/4
16 1/2
12 1/2
36 1/4
31 3/4
18
11 1/2
35 1/4
32 1/2
34 1/4
11 1/2
35 1/4
32 1/2
33 1/2
11 1/2
35 1/4
32 1/2
36 1/4
90
100
110
1120
1008
918
1471
1324
1203
1697
1527
1388
2093
1884
1712
2376
2138
1944
2817
2535
2305
PD-Ft.
PD-Ft. Deg.F
Head
GPM Head
Rise GPM Head
1.5
154
12.2
11
3.2
154
14.5
14
4.3
154
16.3
17
6.4
154
16.5
20
8.3
154
21.3
23
11.6
154
23.2
26
17"
D
Width
G
W/Pump
64
74 1/2
81 1/2
95 3/4
102 1/2
116 1/2
120
130
840
775
1103
1018
1273
1175
1570
1449
1782
1645
2113
1950
PD-Ft. Deg.F
Rise
42
1.5
40
55
3.2
40
64
4.3
40
78
6.4
40
89
8.3
40
106
11.6
40
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