RBI Gas boilers - Page 17

Finned copper tube gas boilers & water heaters – Boiler Manual
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17
F
Table 8 Futera Fusion Primary Heat Exchanger Selection Graph
Table 9 Delta T/Boiler Recovery Table - Fahrenheit
Table 10 Delta T/Boiler Recovery Table - Centigrade
To properly size the pump a grain hardness and pH test must be taken at the installation site before the order is placed. Proper
pump sizing will improve heater performance and help ensure heater longevity.
For hard/soft water pump selection, must consult factory.
Model
Inlet
Temp
(deg f)
500 750 1000 1250 1500 1750 2000
Flow
Rate
(gph)
Δt
(deg f)
Flow
Rate
(gph)
Δt
(deg f)
Flow
Rate
(gph)
Δt
(deg f)
Flow
Rate
(gph)
Δt
(deg f)
Flow
Rate
(gph)
Δt
(deg f)
Flow
Rate
(gph)
Δt
(deg f)
Flow
Rate
(gph)
Δt
(deg f)
60 614 96 833 106 1050 112 1460 101 1664 106 1859 111 2118 111
80 753 76 998 86 1245 92 1768 81 2000 86 2205 91 2520 91
100 999 56 1268 66 1546 72 2293 61 2530 66 2758 71 3136 71
120 1513 36 1770 46 2083 52 3320 41 3532 46 3737 51 4247 51
140 3336 16 3072 26 3321 32 6354 21 6130 26 6026 31 6855 31
Model
Inlet
Temp
(deg C)
500 750 1000 1250 1500 1750 2000
Flow
Rate
(l/h)
Δt
(deg C)
Flow
Rate
(l/h)
Δt
(deg C)
Flow
Rate
(l/h)
Δt
(deg C)
Flow
Rate
(l/h)
Δt
(deg C)
Flow
Rate
(l/h)
Δt
(deg C)
Flow
Rate
(l/h)
Δt
(deg C)
Flow
Rate
(l/h)
Δt
(deg C)
16 2322 53 3148 59 3968 62 5517 56 6289 59 7028 62 8007 62
27 2846 42 3773 48 4707 51 6683 45 7561 48 8336 51 9527 51
38 3777 31 4792 37 5844 40 8669 34 9563 37 10,427 39 11,852 39
49 5718 20 6690 26 7873 29 12,551 23 13,350 26 14,126 28 16,054 28
60 12,609 9 11,612 14 12,552 18 24,016 12 23,172 14 22,777 17 25,913 17